US4569468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous forms feed tractor with multiple cut forms chutes
Assignee: International Business Machines Corp
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Filing: 1984-09-18
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Granted: 1986-02-11
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Expires: 2004-09-18
Abstract
Abstract A continuous forms feed tractor in the form of an elongated housing mounts for rotation thereon, an endless belt from which protrude longitudinal spaced aligned pins, projectable within similarly spaced holes along an edge of a continuous forms record medium for positively feeding the continuous forms medium about a rotary platen and between the platen and a print head for implementing printing on the continuous form. The housing is provided with a long cut forms chute running the length of the same, below the endless belt and parallel therewith for feeding letter size or legal size paper sheets onto and about the platen. A short cut forms chute extends obliquely through the elongated housing, at the end facing the platen, inclined downwardly towards the platen and the long cut forms chute for feeding short cut forms, such as a punch card onto and about the platen for printing thereon. Forces are applied on pressure feed rolls to press the cut forms media against the rotating platen driving them around the platen, up past the print mechanism. A door pivotally mounted to the side of the housing for movement between a first, upright position exposing the endless belt and a second position sandwiching the form between the door and the top of the elongated housing, allows access to the short cut forms chute, at the side of the endless belt, when the door is in raised position.
Inventors
- 👤 Jay H. Neer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:09
CPC Classifications
B; B41; B41J; B41J11/00; B41J11/48; B41J11/26; B41J11/30
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
276 words
In a continuous forms feed tractor for feeding a continuous form record medium, having edge perforations, through a printer, about the periphery of a rotatable cylindrical platen and in front of a print head facing the platen for imprinting the record medium, said continuous forms feed tractor being in juxtaposition to the platen, and wherein, said tractor comprises: an elongated housing including top and bottom surfaces, a front end and a rear end, said front end facing said platen and being spaced slightly therefrom, means within said elongated housing defining a track, an endless belt born by said track, a sprocket rotatably mounted in said housing and engaging said belt for driving said belt, means for rotating said sprocket, a door pivotally mounted to the side of said housing for movement between a first generally upright, open position, exposing said endless belt, and a second, face engaging position with said continuous forms record medium and said housing, pins projecting outwardly of the face of said endless belt engaging corresponding perforations along the edge of the continuous forms record medium to move said continuous forms record medium, the improvement comprising: at least one feed chute within said housing, at least a portion of said feed chute lying to the side of said endless belt with said feed chute extending in the direction of the platen and terminating at the end of said housing adjacent said platen, upstream of said print head, whereby cut forms record media may be fed alternately through said at least one feed chute to the continuous forms record medium, onto the periphery of the rotatable platen for imprinting thereon by said print head.
Claim 2
Dependent Claim
276 words
In a continuous forms feed tractor for feeding a continuous form record medium, having edge perforations, through a printer, about the periphery of a rotatable cylindrical platen and in front of a print head facing the platen for imprinting the record medium, said continuous forms feed tractor being in juxtaposition to the platen, and wherein, said tractor comprises: an elongated housing including top and bottom surfaces, a front end and a rear end, said front end facing said platen and being spaced slightly therefrom, means within said elongated housing defining a track, an endless belt born by said track, a sprocket rotatably mounted in said housing and engaging said belt for driving said belt, means for rotating said sprocket, a door pivotally mounted to the side of said housing for movement between a first generally upright, open position, exposing said endless belt, and a second, face engaging position with said continuous forms record medium and said housing, pins projecting outwardly of the face of said endless belt engaging corresponding perforations along the edge of the continuous forms record medium to move said continuous forms record medium, the improvement comprising: at least one feed chute within said housing, at least a portion of said feed chute lying to the side of said endless belt with said feed chute extending in the direction of the platen and terminating at the end of said housing adjacent said platen, upstream of said print head, whereby cut forms record media may be fed alternately through said at least one feed chute to the continuous forms record medium, onto the periphery of the rotatable platen for imprinting thereon by said print head.
Claim 3
Dependent Claim
58 words
The continuous forms feed tractor as claimed in claim 1, wherein said at least one feed chute comprises a long cut forms feed chute within said housing extending the length of the housing, parallel to the top and bottom surfaces and opening outwardly at the rear end of the housing to facilitate insertion of long cut forms therein.
Claim 4
Dependent Claim
79 words
The continuous forms feed tractor as claimed in claim 1, wherein said at least one feed chute within said housing comprises a diagonal short cut forms chute within said elongated housing from the top surface towards said bottom surface in the direction of said platen and having a lower end opening at the front end of said elongated housing adjacent said platen, and wherein said diagonal short cut forms chute is laterally to the side of said endless belt.
Claim 5
Dependent Claim
72 words
The continuous forms feed tractor as claimed in claim 2, wherein said at least one feed chute further comprises a diagonal short cut forms chute formed within said elongated housing from said top surface towards said bottom surface and having a lower end opening to the front end of said elongated housing adjacent said platen, and wherein said diagonal short cut forms chute is laterally to one side of said endless belt.
Claim 6
Dependent Claim
105 words
The continuous forms feed tractor as claimed in claim 3, further comprising a spring biased, pivotable door mounted to said housing along the side of said housing remote from said diagonal short cut forms chute and to the opposite side of said endless belt from said short cut forms chute, and wherein, said door is of a lateral width such that a portion of the door overlies the entrance of the diagonal short cut forms chute when in closed position, requiring pivoting of the door to a substantially upright, open position to permit insertion of short cut forms within said diagonal short cut forms chute.
Claim 7
Dependent Claim
159 words
The continuous forms feed tractor as claimed in claim 3 wherein said housing comprises an elongated, hollow, rectangular box-type structure comprising spaced top and bottom walls, opposite end walls joining said top and bottom walls, a side wall integral with said top and bottom walls and said end walls, spanning between said walls and extending below the bottom wall, and having integrally formed therewith, at right angles thereto, an integral long cut forms rear chute wall, said long cut forms rear chute wall being parallel to the bottom wall but spaced slightly therefrom to partially define said long cut forms chute, and wherein, the box-type structure further includes co-planar, upper and lower, integral inclined walls opening to the top surface of the top wall and extending diagonally downwardly from the top wall in the direction of the bottom wall and opening to the front end of the housing adjacent said rotable platen, and defining said short cut forms chute.
Claim 8
Dependent Claim
43 words
The continuous forms feed tractor as claimed in claim 6, wherein said lower inclined wall extends beyond the end wall proximate to said rotatable platen to ensure engagement between the short cut forms record media and said platen upstream of said print head.
Claim 9
Dependent Claim
94 words
The continuous forms feed tractor as claimed in claim 6, wherein the side wall of said housing, remote from the rotatable platen, extends longitudinally beyond the end wall of said housing at that end, and wherein, said long cut forms rear chute wall extends longitudinally beyond that end wall of said housing to a similar extent and is integral therewith to define a long cut forms chute insertion mouth to facilitate insertion and feed of long cut forms record media through said chute to the print area defined by the platen and print head.
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) | 1989-02-10 | 1989-08-12 | 1990-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-10 | 1993-08-12 | 1994-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-10 | 1997-08-12 | 1998-02-11 | $7700.00 | Window Closed / Lapsed |