US5156121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston-connecting rod assembly
Assignee: Individual
•
Filing: 1990-05-30
•
Granted: 1992-10-20
•
Expires: 2010-05-30
Abstract
Abstract A piston-connecting rod assembly for a crank shaft creates periods of transition, such as dwell, in engines or compressors. The piston, which reciprocates in compression and power strokes, is connected to the connecting rod by upper and lower piston pins. The connecting rod has (a) a lower end portion for connecting the connecting rod to the crank shaft, (b) a central portion having a central portion opening for receiving the lower piston pin, and (c) an upper end portion having an upper end portion opening for receiving the upper piston pin.
Inventors
- 👤 Edward E. Routery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:52
CPC Classifications
F; F02; F02B; F02B41/00; F02B41/02; F02B41/04; F01; F01B; F01B9/00; F01B9/02; F02B2275/00; F02B2275/36; Y; Y10; Y10T; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2162
Claims Analysis
Total Claims: 65
Claim 1
Independent Claim
85 words
A connecting rod for connecting a crank shaft, for rotating, with a piston carrying first and second piston pins, for reciprocating in compression strokes and power strokes, comprising (a) a first end portion having means for connecting said first end portion to the crank shaft; (b) a central portion having an elongated central portion opening for receiving a portion of the first piston pin; and (c) a second end portion having an elongated end portion opening for receiving a portion of the second piston pin.
Claim 2
Dependent Claim
85 words
A connecting rod for connecting a crank shaft, for rotating, with a piston carrying first and second piston pins, for reciprocating in compression strokes and power strokes, comprising (a) a first end portion having means for connecting said first end portion to the crank shaft; (b) a central portion having an elongated central portion opening for receiving a portion of the first piston pin; and (c) a second end portion having an elongated end portion opening for receiving a portion of the second piston pin.
Claim 3
Dependent Claim
108 words
A connecting rod in accordance with claim 1, wherein said central portion opening has a maximum width which is substantially the same as the diameter of said portion of the first piston pin to be received in said opening and wherein the wall structure for said end portion opening includes a first region, a second region, and a third region, the midline of said first region and said second region substantially following a curve having a radius substantially equal to the distance between the first piston pin and the second piston pin and the midline of said third region altering said curve between said second and first regions.
Claim 4
Dependent Claim
122 words
A connecting rod in accordance with claim 1, wherein said central portion opening has a maximum width which is substantially the same as the diameter of said portion of the first piston pin to be received in said opening and wherein the wall structure for said end portion opening includes a first region, a second region, and a third region, said first region for causing the piston to move in concert with the rotation of the crank shaft during the power stroke, said second region for causing the piston to move in concert with the rotation of the crankshaft during the compression stroke, and said third region for causing the piston to cease moving in concert with the rotation of the crankshaft.
Claim 5
Dependent Claim
36 words
A connecting rod in accordance with claim 3, wherein said third region causes the piston to cease moving in concert with the rotation of the crankshaft for a period of from about 4° to about 40°.
Claim 6
Dependent Claim
108 words
A connecting rod in accordance with claim 1, wherein said end portion opening has a maximum width which is substantially the same as the diameter of said portion of the second piston pin to be received in said opening and wherein the wall structure for said central portion opening includes a first region, a second region, and a third region, the midline of said first region and said second region substantially following a curve having a radius substantially equal to the distance between the first piston pin and the second piston pin and the midline of said third region altering said curve between said second and first regions.
Claim 7
Dependent Claim
122 words
A connecting rod in accordance with claim 1, wherein said end portion opening has a maximum width which is substantially the same as the diameter of said portion of the second piston pin to be received in said opening and wherein the wall structure for said central portion opening includes a first region, a second region, and a third region, said first region for causing the piston to move in concert with the rotation of the crank shaft during the power stroke, said second region for causing the piston to move in concert with the rotation of the crankshaft during the compression stroke, and said third region for causing the piston to cease moving in concert with the rotation of the crankshaft.
Claim 8
Dependent Claim
36 words
A connecting rod in accordance with claim 6, wherein said third region causes the piston to cease moving in concert with the rotation of the crankshaft for a period of from about 4° to about 40°.
Claim 9
Dependent Claim
121 words
A connecting rod for connecting a crank shaft, for rotating, with a piston carrying first and second piston pins, for reciprocating in compression strokes and power strokes, comprising (a) a first end portion having means for connecting said first end portion to the crank shaft; (b) a central portion having a central portion opening for receiving a portion of the first piston pin, said central portion opening shaped for movement of the first piston pin, relative to said opening, along said opening; and (c) a second end portion having an end portion opening for receiving a portion of the second piston pin, said end portion opening shaped for the movement of the second piston, relative to said opening, along said opening.
Claim 10
Dependent Claim
121 words
A connecting rod for connecting a crank shaft, for rotating, with a piston carrying first and second piston pins, for reciprocating in compression strokes and power strokes, comprising (a) a first end portion having means for connecting said first end portion to the crank shaft; (b) a central portion having a central portion opening for receiving a portion of the first piston pin, said central portion opening shaped for movement of the first piston pin, relative to said opening, along said opening; and (c) a second end portion having an end portion opening for receiving a portion of the second piston pin, said end portion opening shaped for the movement of the second piston, relative to said opening, along said opening.
Claim 11
Dependent Claim
108 words
A connecting rod in accordance with claim 8, wherein said central portion opening has a maximum width which is substantially the same as the diameter of said portion of the first piston pin to be received in said opening and wherein the wall structure for said end portion opening includes a first region, a second region, and a third region, the midline of said first region and said second region substantially following a curve having a radius substantially equal to the distance between the first piston pin and the second piston pin and the midline of said third region altering said curve between said second and first regions.
Claim 12
Dependent Claim
122 words
A connecting rod in accordance with claim 8, wherein said central portion opening has a maximum width which is substantially the same as the diameter of said portion of the first piston pin to be received in said opening and wherein the wall structure for said end portion opening includes a first region, a second region, and a third region, said first region for causing the piston to move in concert with the rotation of the crank shaft during the power stroke, said second region for causing the piston to move in concert with the rotation of the crankshaft during the compression stroke, and said third region for causing the piston to cease moving in concert with the rotation of the crankshaft.
Claim 13
Dependent Claim
36 words
A connecting rod in accordance with claim 10, wherein said third region causes the piston to cease moving in concert with the rotation of the crankshaft for a period of from about 4° to about 40°.
Claim 14
Dependent Claim
108 words
A connecting rod in accordance with claim 8, wherein said end portion opening has a maximum width which is substantially the same as the diameter of said portion of the second piston pin to be received in said opening and wherein the wall structure for said central portion opening includes a first region, a second region, and a third region, the midline of said first region and said second region substantially following a curve having a radius substantially equal to the distance between the first piston pin and the second piston pin and the midline of said third region altering said curve between said second and first regions.
Claim 15
Dependent Claim
122 words
A connecting rod in accordance with claim 8, wherein said end portion opening has a maximum width which is substantially the same as the diameter of said portion of the second piston pin to be received in said opening and wherein the wall structure for said central portion opening includes a first region, a second region, and a third region, said first region for causing the piston to move in concert with the rotation of the crank shaft during the power stroke, said second region for causing the piston to move in concert with the rotation of the crankshaft during the compression stroke, and said third region for causing the piston to cease moving in concert with the rotation of the crankshaft.
Claim 16
Dependent Claim
36 words
A connecting rod in accordance with claim 13, wherein said third region causes the piston to cease moving in concert with the rotation of the crankshaft for a period of from about 4° to about 40°.
Claim 17
Dependent Claim
137 words
A connecting rod for connecting a crank shaft, for rotating, with a piston carrying first and second piston pins, for reciprocating in compression strokes and power strokes, comprising (a) a first end portion having means for connecting said first end portion to the crank shaft; (b) a central portion having a central portion opening for receiving a portion of the first piston pin, (c) a second end portion having an end portion opening for receiving a portion of the second piston pin; and (d) one of said central portion and said second end portion openings including a first region having a midline which substantially follows a curve having a radius substantially equal to the distance between the first piston pin and the second piston pin, and a second region having a midline which follows an altered curve.
Claim 18
Dependent Claim
137 words
A connecting rod for connecting a crank shaft, for rotating, with a piston carrying first and second piston pins, for reciprocating in compression strokes and power strokes, comprising (a) a first end portion having means for connecting said first end portion to the crank shaft; (b) a central portion having a central portion opening for receiving a portion of the first piston pin, (c) a second end portion having an end portion opening for receiving a portion of the second piston pin; and (d) one of said central portion and said second end portion openings including a first region having a midline which substantially follows a curve having a radius substantially equal to the distance between the first piston pin and the second piston pin, and a second region having a midline which follows an altered curve.
Claim 19
Dependent Claim
44 words
A connecting rod in accordance with claim 15 wherein said first region causes the piston to move in concert with the rotation of the crank shaft and said second region causes the piston to cease moving in concert with the rotation of the crankshaft
Claim 20
Dependent Claim
36 words
A connecting rod in accordance with claim 15, wherein said second region causes the piston to cease moving in concert with the rotation of the crankshaft for a period of from about 4° to about 40°.
Claim 21
Dependent Claim
94 words
A piston-connecting rod assembly for a crank shaft, for rotating, comprising: (a) a piston, for reciprocating in compression and power strokes, carrying a first piston pin and a second piston pin; and (b) a connecting rod including, (1) a first end portion having means for connecting said first end portion to the crank shaft, (2) a central portion having an elongated central portion opening for receiving a portion of said first piston pin, and (3) a second end portion having an elongated end portion opening for receiving a portion of said second piston pin.
Claim 22
Dependent Claim
94 words
A piston-connecting rod assembly for a crank shaft, for rotating, comprising: (a) a piston, for reciprocating in compression and power strokes, carrying a first piston pin and a second piston pin; and (b) a connecting rod including, (1) a first end portion having means for connecting said first end portion to the crank shaft, (2) a central portion having an elongated central portion opening for receiving a portion of said first piston pin, and (3) a second end portion having an elongated end portion opening for receiving a portion of said second piston pin.
Claim 23
Dependent Claim
117 words
A piston-connecting rod assembly in accordance with claim 18, wherein: (a) said central portion opening has a maximum width which is substantially the same as the diameter of said portion of said first piston pin to be received in said opening; (b) the length of said central portion opening is sufficient that its ends do not interfere with the reciprocation of the piston; (c) said end portion opening has a maximum width which is substantially the same as the diameter of said portion of said second piston pin to be received in said opening; and (d) the length of said end portion opening is sufficient that its ends do not interfere with the reciprocation of the piston.
Claim 24
Dependent Claim
91 words
A piston-connecting rod assembly in accordance with claim 19, wherein the wall structure for said end portion opening includes a first region, a second region, and a third region, said first region for causing the piston to move in concert with the rotation of the crank shaft during the power stroke, said second region for causing the piston to move in concert with the rotation of the crankshaft during the compression stroke, and said third region for causing the piston to cease moving in concert with the rotation of the crankshaft.
Claim 25
Dependent Claim
64 words
A piston-connecting rod assembly in accordance with claim 20, wherein the midline of said end portion opening along said first region and along said second region substantially follow a curve having a radius substantially equal to the distance between said first piston pin and said second piston pin and wherein the midline of said end portion opening along said third region alters said curve.
Claim 26
Dependent Claim
37 words
A piston-connecting rod assembly in accordance with claim 21, wherein said third region causes the piston to cease moving in concert with the rotation of the crankshaft for a period of from about 4° to about 40°.
Claim 27
Dependent Claim
91 words
A piston-connecting rod assembly in accordance with claim 19, wherein the wall structure for said central portion opening includes a first region, a second region, and a third region, said first region for causing the piston to move in concert with the rotation of the crank shaft during the power stroke, said second region for causing the piston to move in concert with the rotation of the crankshaft during the compression stroke, and said third region for causing the piston to cease moving in concert with the rotation of the crankshaft.
Claim 28
Dependent Claim
64 words
A piston-connecting rod assembly in accordance with claim 23, wherein the midline of said central portion opening along said first region and along said second region substantially follows a curve having a radius substantially equal to the distance between said first piston pin and said second piston pin and wherein the midline of said central portion opening along said third region alters said curve.
Claim 29
Dependent Claim
37 words
A piston-connecting rod assembly in accordance with claim 24, wherein said third region causes the piston to cease moving in concert with the rotation of the crankshaft for a period of from about 4° to about 40°.
Claim 30
Dependent Claim
131 words
A piston-connecting rod assembly for a crank shaft, for rotating, comprising: (a) a piston, for reciprocating in compression and power strokes, carrying a first piston pin and a second piston pin; and (b) a connecting rod including, (1) a first end portion having means for connecting said first end portion to the crank shaft, (2) a central portion having a central portion opening for receiving a portion of said first piston pin, said central portion opening shaped for movement of said first piston pin, relative to said opening, along said opening; and (3) a second end portion having an end portion opening for receiving a portion of said second piston pin, said second end portion opening shaped for movement of said second piston pin, relative to said opening, along said opening.
Claim 31
Dependent Claim
131 words
A piston-connecting rod assembly for a crank shaft, for rotating, comprising: (a) a piston, for reciprocating in compression and power strokes, carrying a first piston pin and a second piston pin; and (b) a connecting rod including, (1) a first end portion having means for connecting said first end portion to the crank shaft, (2) a central portion having a central portion opening for receiving a portion of said first piston pin, said central portion opening shaped for movement of said first piston pin, relative to said opening, along said opening; and (3) a second end portion having an end portion opening for receiving a portion of said second piston pin, said second end portion opening shaped for movement of said second piston pin, relative to said opening, along said opening.
Claim 32
Dependent Claim
117 words
A piston-connecting rod assembly in accordance with claim 26, wherein: (a) said central portion opening has a maximum width which is substantially the same as the diameter of said portion of said first piston pin to be received in said opening; (b) the length of said central portion opening is sufficient that its ends do not interfere with the reciprocation of the piston; (c) said end portion opening has a maximum width which is substantially the same as the diameter of said portion of said second piston pin to be received in said opening; and (d) the length of said end portion opening is sufficient that its ends do not interfere with the reciprocation of the piston.
Claim 33
Dependent Claim
77 words
A piston-connecting rod assembly in accordance with claim 27, wherein the wall structure for said end portion opening includes a first region, a second region, and a third region, the midline of said first region and said second region substantially following a curve having a radius substantially equal to the distance between said first piston pin and said second piston pin and the midline of said third region altering said curve between said second and first regions.
Claim 34
Dependent Claim
109 words
A piston-connecting rod assembly in accordance with claim 27, wherein said end portin opening includes a first region, a second region, and a third region, said first region for causing the piston to move in concert with the rotation of the crank shaft during the power stroke, said second region for causing the piston to move in concert with the rotation of the crank shaft during the power stroke, said second region for causing the piston to move in concert with the rotation of the crankshaft during the compression stroke, and said third region for causing the piston to cease moving in concert with the rotation of the crankshaft.
Claim 35
Dependent Claim
37 words
A piston-connecting rod assembly in accordance with claim 29, wherein said third region causes the piston to cease moving in concert with the rotation of the crankshaft for a period of from about 4° to about 40°.
Claim 36
Dependent Claim
77 words
A piston-connecting rod assembly in accordance with claim 27, wherein the wall structure for said central portion opening includes a first region, a second region, and a third region, the midline of said first region and said second region substantially following a curve having a radius substantially equal to the distance between said first piston pin and said second piston pin and the midline of said third region altering said curve between said second and first regions.
Claim 37
Dependent Claim
87 words
A piston-connecting rod assembly in accordance with claim 27, wherein said central portion opening includes a first region, a second region, and a third region, said first region for causing the piston to move in concert with the rotation of the crank shaft during the power stroke, said second region for causing the piston to move in concert with the rotation of the crankshaft during the compression stroke, and said third region for causing the piston to cease moving in concert with the rotation of the crankshaft.
Claim 38
Dependent Claim
37 words
A piston-connecting rod assembly in accordance with claim 32, wherein said third region causes the piston to cease moving in concert with the rotation of the crankshaft for a period of from about 4° to about 40°.
Claim 39
Dependent Claim
146 words
A piston-connecting rod assembly for a crank shaft, for rotating, comprising: (a) a piston, for reciprocating in compression and power strokes, carrying a first piston pin and a second piston pin; and (b) a connecting rod including, (1) a first end portion having means for connecting said first end portion to the crank shaft, (2) a central portion having a central portion opening for receiving a portion of said first piston pin; and (3) a second end portion having an end portion opening for receiving a portion of said second piston pin; (c) one of said central portion and said second end portion openings including a first region having a midline which substantially follows a curve having a radius substantially equal to the distance between said first piston pin and said second piston pin, and a second region, having a midline which follows an altered curve.
Claim 40
Dependent Claim
146 words
A piston-connecting rod assembly for a crank shaft, for rotating, comprising: (a) a piston, for reciprocating in compression and power strokes, carrying a first piston pin and a second piston pin; and (b) a connecting rod including, (1) a first end portion having means for connecting said first end portion to the crank shaft, (2) a central portion having a central portion opening for receiving a portion of said first piston pin; and (3) a second end portion having an end portion opening for receiving a portion of said second piston pin; (c) one of said central portion and said second end portion openings including a first region having a midline which substantially follows a curve having a radius substantially equal to the distance between said first piston pin and said second piston pin, and a second region, having a midline which follows an altered curve.
Claim 41
Dependent Claim
116 words
A piston-connecting rod assembly in accordance with claim 34, wherein: (a) said central portion opening has a maximum width which is substantially the same as the diameter of said portion of said first piston pin to be received in said opening; (b) the length of said central portion opening is sufficient that its ends do not interfere with the reciprocation of the piston; (c) the maximum width of said end portion opening is substantially the same as the diameter of said portion of said second piston pin to be received in said opening; and (d) the length of said end portion opening is sufficient that its ends do not interfere with the reciprocation of the piston.
Claim 42
Dependent Claim
45 words
A piston-connecting rod assembly in accordance with claim 34 wherein said first region causes the piston to move in concert with the rotation of the crank shaft and said second region causes the piston to cease moving in concert with the rotation of the crankshaft.
Claim 43
Dependent Claim
37 words
A piston-connecting rod assembly in accordance with claim 34, wherein said second region causes the piston to cease moving in concert with the rotation of the crankshaft for a period of from about 4° to about 40°.
Claim 44
Dependent Claim
94 words
An internal combustion engine having a crank shaft for rotating, comprising: (a) a piston, for reciprocating in compression and power strokes, carrying a first piston pin and a second piston pin; and (b) a connecting rod including, (1) a first end portion having means for connecting said first end portin to the crank shaft, (2) a central portion having an elongated central portion opening for receiving a portion of said first piston pin, and (3) a second end portion having an elongated end portion opening for receiving a portion of said second piston pin.
Claim 45
Dependent Claim
94 words
An internal combustion engine having a crank shaft for rotating, comprising: (a) a piston, for reciprocating in compression and power strokes, carrying a first piston pin and a second piston pin; and (b) a connecting rod including, (1) a first end portion having means for connecting said first end portin to the crank shaft, (2) a central portion having an elongated central portion opening for receiving a portion of said first piston pin, and (3) a second end portion having an elongated end portion opening for receiving a portion of said second piston pin.
Claim 46
Dependent Claim
82 words
An internal combustion engine in accordance with claim 38, wherein the wall structure for said end portion opening includes a first region, a second region, and a third region, the midline of said end portion opening along said first region and along said second region substantially following a curve having a radius substantially equal to the distance between said first piston pin and said second piston pin and the midline of said end portion opening along said third region altering said curve.
Claim 47
Dependent Claim
82 words
An internal combustion engine in accordance with claim 38, wherein the wall structure for said central portion opening includes a first region, a second region, and a third region, the midline of said central portion opening along said first region and along said second region substantially following a curve having a radius substantially equal to the distance between said first piston pin and said second piston pin and the midline of said end portion opening along said third region altering said curve.
Claim 48
Dependent Claim
130 words
An internal combustion engine having a crank shaft for rotating, comprising: (a) a piston, for reciprocating in compression and power strokes, carrying a first piston pin and a second piston pin; and (b) a connecting rod including, (1) a first end portion having means for connecting said first end portion to the crank shaft, (2) a central portion having a central portion opening for receiving a portion of said first piston pin, said central portion opening shaped for movement of said piston pin, relative to said opening, along said opening; and (3) a second end portion having an end portion opening for receiving a portion of said second piston pin, said second end portion opening shaped for movement of said second piston pin, relative to said opening, along said opening.
Claim 49
Dependent Claim
130 words
An internal combustion engine having a crank shaft for rotating, comprising: (a) a piston, for reciprocating in compression and power strokes, carrying a first piston pin and a second piston pin; and (b) a connecting rod including, (1) a first end portion having means for connecting said first end portion to the crank shaft, (2) a central portion having a central portion opening for receiving a portion of said first piston pin, said central portion opening shaped for movement of said piston pin, relative to said opening, along said opening; and (3) a second end portion having an end portion opening for receiving a portion of said second piston pin, said second end portion opening shaped for movement of said second piston pin, relative to said opening, along said opening.
Claim 50
Dependent Claim
82 words
An internal combustion engine in accordance with claim 41, wherein the wall structure for said end portion opening includes a first region, a second region, and a third region, the midline of said end portion opening along said first region and along said second region substantially following a curve having a radius substantially equal to the distance between said first piston pin and said second piston pin and the midline of said end opening portion along said third region altering said curve.
Claim 51
Dependent Claim
83 words
An internal combustion engine in accordance with claim 41, wherein the wall structure for said central portin opening includes a first region, a second region, and a third region, the midline of said central portion opening along said first region and along said second region substantially following a curve having a radius substantially equal to the distance between said first piston pin and said second piston pin and the midline of said central portion opening portion along said third region altering said curve.
Claim 52
Dependent Claim
148 words
An internal combustion engine having a crank shaft for rotating, comprising: (a) a piston, for reciprocating in compression and power strokes, carrying a first piston pin and a second piston pin; and (b) a connecting rod including, (1) a first end portion having means for connecting said first end portion to the crank shaft, (2) a central portion having an elongated central portion opening for receiving a portin of said first piston pin, and (3) a second end portion having an elongated end portion opening for receiving a portion of said second piston pin; (c) one of said central portion and said second end portion openings including a first region having a midline which substantially follows a curve having a radius substantially equal to the distance between said first piston pin and said second piston pin, and a second region, having a midline which follows an altered curve.
Claim 53
Dependent Claim
148 words
An internal combustion engine having a crank shaft for rotating, comprising: (a) a piston, for reciprocating in compression and power strokes, carrying a first piston pin and a second piston pin; and (b) a connecting rod including, (1) a first end portion having means for connecting said first end portion to the crank shaft, (2) a central portion having an elongated central portion opening for receiving a portin of said first piston pin, and (3) a second end portion having an elongated end portion opening for receiving a portion of said second piston pin; (c) one of said central portion and said second end portion openings including a first region having a midline which substantially follows a curve having a radius substantially equal to the distance between said first piston pin and said second piston pin, and a second region, having a midline which follows an altered curve.
Claim 54
Dependent Claim
45 words
An internal combustion engine in accordance with claim 44, wherein said first region causes the piston to move in convert with the rotation of the crank shaft and said second region causes the piston to cease moving in concert with the rotation of the crankshaft.
Claim 55
Dependent Claim
92 words
A compressor having a crank shaft for rotating, comprising: (a) a piston, for reciprocating in compression and power strokes, carrying a first piston pin and a second piston pin; and (b) a connecting rod including, (1) a first end portion having means for connecting said first end portion to the crank shaft, (2) a central portin having an elongated central portion opening for receiving a portion of said first piston pin, and (3) a second end portion having an elongated end portion opening for receiving a portion of said second piston pin.
Claim 56
Dependent Claim
92 words
A compressor having a crank shaft for rotating, comprising: (a) a piston, for reciprocating in compression and power strokes, carrying a first piston pin and a second piston pin; and (b) a connecting rod including, (1) a first end portion having means for connecting said first end portion to the crank shaft, (2) a central portin having an elongated central portion opening for receiving a portion of said first piston pin, and (3) a second end portion having an elongated end portion opening for receiving a portion of said second piston pin.
Claim 57
Dependent Claim
80 words
A compressor in accordance with claim 46, wherein the wall structure for said end portion opening includes a first region, a second region, and a third region, the midline of said end portion opening along said first region and along said second region substantially following a curve having a radius substantially equal to the distance between said first piston pin and said second piston pin and the midline of said end portion opening along said third region altering said curve.
Claim 58
Dependent Claim
80 words
A compressor in accordance with claim 46, wherein the wall structure for said central portion opening includes a first region, a second region, and a third region, the midline of said central portion opening along said first region and along said second region substantially following a curve having a radius substantially equal to the distance between said first piston pin and said second piston pin and the midline of said central portion opening along said third region altering said curve.
Claim 59
Dependent Claim
128 words
A compressor having a crank shaft for rotating, comprising: (a) a piston, for reciprocating in compression and power strokes, carrying a first piston pin and a second piston pin; and (b) a connecting rod including, (1) a first end portion having means for connecting said first end portion to the crank shaft, (2) a central portion having a central portion opening for receiving a portin of said first piston pin, said central portion opening shaped for movement of said first piston pin, relative to said opening, along said opening; and (3) a second end portion having an end portion opening for receiving a portion of said second piston pin, said end portion opening shaped for movement of said second piston pin, relative to said opening, along said opening.
Claim 60
Dependent Claim
128 words
A compressor having a crank shaft for rotating, comprising: (a) a piston, for reciprocating in compression and power strokes, carrying a first piston pin and a second piston pin; and (b) a connecting rod including, (1) a first end portion having means for connecting said first end portion to the crank shaft, (2) a central portion having a central portion opening for receiving a portin of said first piston pin, said central portion opening shaped for movement of said first piston pin, relative to said opening, along said opening; and (3) a second end portion having an end portion opening for receiving a portion of said second piston pin, said end portion opening shaped for movement of said second piston pin, relative to said opening, along said opening.
Claim 61
Dependent Claim
80 words
A compressor in accordance with claim 49, wherein the wall structure for said end portin opening includes a first region, a second region, and a third region, the midline of said end portion opening along said first region and along said second region substantially following a curve having a radius substantially equal to the distance between said first piston pin and said second piston pin and the midline of said end portion opening along said third region altering said curve.
Claim 62
Dependent Claim
80 words
A compressor in accordance with claim 49, wherein the wall structure for said central portion opening includes a first region, a second region, and a third region, the midline of said central portion opening along said first region and along said second region substantially following a curve having a radius substantially equal to the distance between said first piston pin and said second piston pin and the midline of said central portion opening along said third region altering said curve.
Claim 63
Dependent Claim
144 words
A compressor having a crank shaft for rotating, comprising: (a) a piston, for reciprocating in compression and power strokes, carrying a first piston pin and a second piston pin; and (b) a connecting rod including, (1) a first end portion having means for connecting said first end portion to the crank shaft, (2) a central portion having a central portion opening for receiving a portion of said first piston pin, and (3) a second end portion having an end portion opening for receiving a portion of said second piston pin; (c) one of said central portion and said second end portion openings including a first region having a midline which substantially follows a curve having a radius substantially equal to the distance between said first piston pin and said second piston pin, and a second region, having a midline which follows an altered curve.
Claim 64
Dependent Claim
144 words
A compressor having a crank shaft for rotating, comprising: (a) a piston, for reciprocating in compression and power strokes, carrying a first piston pin and a second piston pin; and (b) a connecting rod including, (1) a first end portion having means for connecting said first end portion to the crank shaft, (2) a central portion having a central portion opening for receiving a portion of said first piston pin, and (3) a second end portion having an end portion opening for receiving a portion of said second piston pin; (c) one of said central portion and said second end portion openings including a first region having a midline which substantially follows a curve having a radius substantially equal to the distance between said first piston pin and said second piston pin, and a second region, having a midline which follows an altered curve.
Claim 65
Dependent Claim
43 words
A compressor in accordance with claim 48 wherein said first region causes the piston to move in concert with the rotation of the crank shaft and said second region causes the piston to cease moving in concert with the rotation of the crankshaft.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-10-20 | 1996-04-20 | 1996-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-10-20 | 2000-04-20 | 2000-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-10-20 | 2004-04-20 | 2004-10-20 | $7700.00 | Window Closed / Lapsed |