US3565024A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for cyclically operated stitching machines
Assignee: Individual
•
Filing: 1968-06-24
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Granted: 1971-02-23
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Expires: 1988-06-24
Abstract
Abstract An improved demountable control system for cyclically operated stitching machines. The system interlocks the functions of (1) raising and lowering of the fabric-holding presser foot, and, (2) machine starting, with preexisting machine functions. A singlefoot pedal serves for operator control.
Inventors
- 👤 Richard E Tice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:15
CPC Classifications
D; D05; D05B; D05B69/00; D05B69/28
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
295 words
Apparatus for effecting the sequential functioning of the presser foot and cycling of a platform mounted cyclically operated stitching machine having a shaft whose rotation effects movement of the presser foot between clamping and unclamping positions, a cycle actuator, and means reciprocatable in response to start and stop of said machine, said stitching machine including means to permit tilting thereof with respect to said platform to expose the underside of said machine, comprising, in combination with said stitching machine: first and second piston and cylinder actuators, each of said cylinders having a base means: first and second mounting means pivotally securing the respective bases of said cylinders on or above the upper surface of said platform, said first cylinder being mounted with its accompanying piston element disposed adjacent said shaft and said second cylinder being mounted with its accompanying piston element disposed adjacent said cycle actuator; link means pivotally connecting said first piston element to said shaft whereby movement of said piston within its respective cylinder in response to pressure applied to said cylinder produces rotation of said shaft and movement of said presser foot to its unclamping position; rigid connector means pivotally joining said second piston element to said cycle actuator whereby movement of said piston within its respective cylinder in response to pressure applied to said cylinder moves said cycle actuator to commence the stitching cycle, and whereby said pivotal mountings of said pistons and cylinders permit tilting of said machine with respect to said platform without disconnecting said actuators; a source of pressurized fluid; duct means joining said source of pressurized fluid with said cylinders; and valve means interposed in said duct means, and valve control means controlling the flow of pressurized fluid to said cylinders in accordance with a selected sequence.
Claim 2
Dependent Claim
295 words
Apparatus for effecting the sequential functioning of the presser foot and cycling of a platform mounted cyclically operated stitching machine having a shaft whose rotation effects movement of the presser foot between clamping and unclamping positions, a cycle actuator, and means reciprocatable in response to start and stop of said machine, said stitching machine including means to permit tilting thereof with respect to said platform to expose the underside of said machine, comprising, in combination with said stitching machine: first and second piston and cylinder actuators, each of said cylinders having a base means: first and second mounting means pivotally securing the respective bases of said cylinders on or above the upper surface of said platform, said first cylinder being mounted with its accompanying piston element disposed adjacent said shaft and said second cylinder being mounted with its accompanying piston element disposed adjacent said cycle actuator; link means pivotally connecting said first piston element to said shaft whereby movement of said piston within its respective cylinder in response to pressure applied to said cylinder produces rotation of said shaft and movement of said presser foot to its unclamping position; rigid connector means pivotally joining said second piston element to said cycle actuator whereby movement of said piston within its respective cylinder in response to pressure applied to said cylinder moves said cycle actuator to commence the stitching cycle, and whereby said pivotal mountings of said pistons and cylinders permit tilting of said machine with respect to said platform without disconnecting said actuators; a source of pressurized fluid; duct means joining said source of pressurized fluid with said cylinders; and valve means interposed in said duct means, and valve control means controlling the flow of pressurized fluid to said cylinders in accordance with a selected sequence.
Claim 3
Dependent Claim
155 words
The apparatus of claim 1 wherein said valve means comprises first and third normally closed valves, each including spindle elements, said spindle elements of said valves being aligned coincidentally and spaced apart, and operator controlled lever means disposed between said valve spindles whereby movement of said lever into contact with said third valve and away from said first valve opens said third valve and permits said first valve to close, and movement of said lever into contact with said first valve and away from said third valve opens said first valve and permits said third valve to close, means biasing said lever against said spindle of said first valve, and second valve means serially connected between said first valve and said first cylinder and having its spindle disposed adjacent said reciprocatable machine component whereby said machine component moves into contact with said spindle of said second valve and opens said valve when said machine stops.
Claim 4
Dependent Claim
75 words
The apparatus of claim 2 and including a base member, said lever and said first and third valves being mounted on said base member, said valves Being secured on opposite sides of said lever, and said biasing means comprising spring means secured at one of its ends to said base member and at its other end to said lever whereby said first and third valve means and their actuator are readily mounted to said platform.
Claim 5
Dependent Claim
38 words
The apparatus of claim 1 wherein said first and second mounting means comprise first and second plate means including a yoke, said bases of said first and second cylinders being pivotally received in respective ones of said yokes.
Claim 6
Dependent Claim
16 words
The apparatus of claim 4 wherein said plate means are secured directly to said stitching machine.
Claim 7
Dependent Claim
21 words
The apparatus of claim 4 wherein said first and second plate means are secured on opposite sides of said stitching machine.
Claim 8
Dependent Claim
294 words
Apparatus for effecting the sequential functioning of the presser foot and cycling of a platform mounted cyclically operated stitching machine having means for moving the presser foot between clamping and unclamping positions, a cycle actuator, and means reciprocatable in response to start and stop of said machine, said stitching machine including means to permit tilting thereof with respect to said platform to expose the underside of said machine, comprising, in combination with said stitching machine: first and second piston and cylinder actuators, each of said cylinders having a base means, first and second mounting means pivotally securing the respective bases of said cylinders on or above the upper surface of said platform, said first cylinder being mounted with its accompanying piston element disposed adjacent said means for moving said presser foot and said second cylinder being mounted with its accompanying piston element disposed adjacent said cycle actuator; means connecting said first piston element to said means for moving said presser foot whereby movement of said piston within its respective cylinder in response to pressure applied to said cylinder produces movement of said presser foot to its unclamping position; rigid connector means pivotally joining said second piston element to said cycle actuator whereby movement of said piston within its respective cylinder in response to pressure applied to said cylinder moves said cycle actuator to commence the stitching cycle, and whereby said pivotal mountings of said pistons and cylinders permit tilting of said machine with respect to said platform without disconnecting said actuators; a source of pressurized fluid; duct means joining said source of pressurized fluid with said cylinders; valve means interposed in said duct means; and a valve control means controlling the flow of pressurized fluid to said cylinders in accordance with a selected sequence.
Claim 9
Dependent Claim
294 words
Apparatus for effecting the sequential functioning of the presser foot and cycling of a platform mounted cyclically operated stitching machine having means for moving the presser foot between clamping and unclamping positions, a cycle actuator, and means reciprocatable in response to start and stop of said machine, said stitching machine including means to permit tilting thereof with respect to said platform to expose the underside of said machine, comprising, in combination with said stitching machine: first and second piston and cylinder actuators, each of said cylinders having a base means, first and second mounting means pivotally securing the respective bases of said cylinders on or above the upper surface of said platform, said first cylinder being mounted with its accompanying piston element disposed adjacent said means for moving said presser foot and said second cylinder being mounted with its accompanying piston element disposed adjacent said cycle actuator; means connecting said first piston element to said means for moving said presser foot whereby movement of said piston within its respective cylinder in response to pressure applied to said cylinder produces movement of said presser foot to its unclamping position; rigid connector means pivotally joining said second piston element to said cycle actuator whereby movement of said piston within its respective cylinder in response to pressure applied to said cylinder moves said cycle actuator to commence the stitching cycle, and whereby said pivotal mountings of said pistons and cylinders permit tilting of said machine with respect to said platform without disconnecting said actuators; a source of pressurized fluid; duct means joining said source of pressurized fluid with said cylinders; valve means interposed in said duct means; and a valve control means controlling the flow of pressurized fluid to said cylinders in accordance with a selected sequence.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |