USRE31747E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper feed roller assembly for a typewriter or printer
Assignee: International Business Machines Corp
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Filing: 1983-05-31
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Granted: 1984-11-27
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Expires: 2003-05-31
Abstract
Abstract A feed roll/paper deflector assembly for a printer or typewriter having a platen is described. The feed roll assembly is fabricated in such a way as to allow simple insertion into the printer or typewriter assembly and the retention of the feed roll assembly in a proper position within the typewriter by a hooking engagement with a paper release bail. Movement of the paper release bail will compress a spring allowing the paper deflector and feed rolls to be withdrawn from the periphery of the platen. The device allows automated assembly of the paper feed roll assembly into a machine and, in addition, provides complete self-alignment capability for the feed rolls with respect to the periphery of the platen.
Inventors
- 👤 Iraj D. Shakib
- 👤 Krikor Yosmali
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:19
CPC Classifications
B; B41; B41J; B41J13/00; B41J13/02; B41J13/036; B41J13/048; B41J13/10; B41J13/14; B41J13/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
182 words
A manually insertable and removeable paper feed roll device for a printer having a rotatable platen, a frame comprising a frame having sides and at least a rail extending therebetween and a release bail capable of operator movement away from said platen, comprising: a paper deflector support; a paper deflector; a plurality of feed rolls, said feed rolls having a periphery extending through said paper deflector for engagement of said platen; support means for maintaining said feed rolls in spaced relation to each other; said paper deflector support supportable on said support means and moveable thereon; said paper deflector support further comprising retraction and retention means for engaging said release bail to retract said paper deflector support upon movement of said release bail; spring means engageable with said rail and biasingly engaged with said support means, whereby said device is manually insertable into said printer and retained therein by said retention means .[.engaging said release bail,.]. and said support means are biased to engage said feed rolls with said platen when said release bail is disengaged from said retraction .[.and retention.]. means.
Claim 2
Dependent Claim
182 words
A manually insertable and removeable paper feed roll device for a printer having a rotatable platen, a frame comprising a frame having sides and at least a rail extending therebetween and a release bail capable of operator movement away from said platen, comprising: a paper deflector support; a paper deflector; a plurality of feed rolls, said feed rolls having a periphery extending through said paper deflector for engagement of said platen; support means for maintaining said feed rolls in spaced relation to each other; said paper deflector support supportable on said support means and moveable thereon; said paper deflector support further comprising retraction and retention means for engaging said release bail to retract said paper deflector support upon movement of said release bail; spring means engageable with said rail and biasingly engaged with said support means, whereby said device is manually insertable into said printer and retained therein by said retention means .[.engaging said release bail,.]. and said support means are biased to engage said feed rolls with said platen when said release bail is disengaged from said retraction .[.and retention.]. means.
Claim 3
Dependent Claim
21 words
The feed roll device of claim 1 wherein said spring means engages said support means with a tenon and mortise connection.
Claim 4
Dependent Claim
21 words
The feed roll device of claim 2 wherein said connection permits free movement permitting alignment of said rolls with said platen.
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) | 1987-11-27 | 1988-05-28 | 1988-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-27 | 1992-05-28 | 1992-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-27 | 1996-05-28 | 1996-11-27 | $7700.00 | Window Closed / Lapsed |