Patent US3887055A successfully refreshed from Google Patents.
US3887055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Card holder
Assignee: International Business Machines Corp
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Filing: 1973-12-13
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Granted: 1975-06-03
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Expires: 1993-12-13
Abstract
Abstract The print opening of a card holder is configured to have unidirectionally angled upper and outer edges that progressively cam the edges of a sheet into engagement with a platen without catching the corner of the sheet or otherwise jamming the paper feed operation.
Inventors
- 👤 Benjamin George Pastrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:37
CPC Classifications
B; B41; B41J; B41J13/00; B41J13/10; B41J13/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
230 words
A printer including print forming mechanism, and a writing sheet support platen, said print forming mechanism and said platen defining a printing point and writing line therebetween, means for feeding a writing sheet into operative interposition between said print forming mechanism and said platen in a paper feed direction that is normal to said writing line, and means for holding the writing sheet against said platen at said printing point comprising: a plate-like body, means supporting said platelike body adjacent said platen at said printing point, said plate-like body comprising a pair of side portions that extend in said paper feed direction and are spaced laterally on opposite sides of said printing point, and an upper bridging portion positioned above said printing point and interconnecting said side portions, said side and upper bridging portions thereby respectively defining side and upper edges of an open portion through which said print forming mechanism is enabled to have print cooperation with the writing sheet supported by said platen, said plate-like body being configured to urge the writing sheet into close adjacency with said platen at said printing point; wHerein the improvement comprises: said upper bridging portion of said plate-like body defining an upper camming edge of said open portion that extends transverse to said paper feed direction at a unidirectional angle other than substantially 90* throughout the entire space between said side portions.
Claim 2
Dependent Claim
230 words
A printer including print forming mechanism, and a writing sheet support platen, said print forming mechanism and said platen defining a printing point and writing line therebetween, means for feeding a writing sheet into operative interposition between said print forming mechanism and said platen in a paper feed direction that is normal to said writing line, and means for holding the writing sheet against said platen at said printing point comprising: a plate-like body, means supporting said platelike body adjacent said platen at said printing point, said plate-like body comprising a pair of side portions that extend in said paper feed direction and are spaced laterally on opposite sides of said printing point, and an upper bridging portion positioned above said printing point and interconnecting said side portions, said side and upper bridging portions thereby respectively defining side and upper edges of an open portion through which said print forming mechanism is enabled to have print cooperation with the writing sheet supported by said platen, said plate-like body being configured to urge the writing sheet into close adjacency with said platen at said printing point; wHerein the improvement comprises: said upper bridging portion of said plate-like body defining an upper camming edge of said open portion that extends transverse to said paper feed direction at a unidirectional angle other than substantially 90* throughout the entire space between said side portions.
Claim 3
Dependent Claim
230 words
A printer including print forming mechanism, and a writing sheet support platen, said print forming mechanism and said platen defining a printing point and writing line therebetween, means for feeding a writing sheet into operative interposition between said print forming mechanism and said platen in a paper feed direction that is normal to said writing line, and means for holding the writing sheet against said platen at said printing point comprising: a plate-like body, means supporting said plate-like body adjacent said platen at said printing point, said plate-like body comprising a pair of side portions that extend in said paper feed direction and are spaced laterally on opposite sides of said printing point, and an upper bridging portion positioned above said printing point and interconnecting said side portions, said side and upper bridging portions thereby respectively defining side and upper edges of an open portion through which said print forming mechanism is enabled to have print cooperation with the writing sheet supported by said platen, said plate-like body being configured to urge the writing sheet into close adjacency with said platen at said printing point; wHerein the improvement comprises: said upper bridging portion of said plate-like body defining an upper camming edge of said open portion that extends transverse to said paper feed direction at a unidirectional angle other than substantially 90* throughout the entire space between said side portions.
Claim 4
Dependent Claim
230 words
A printer including print forming mechanism, and a writing sheet support platen, said print forming mechanism and said platen defining a printing point and writing line therebetween, means for feeding a writing sheet into operative interposition between said print forming mechanism and said platen in a paper feed direction that is normal to said writing line, and means for holding the writing sheet against said platen at said printing point comprising: a plate-like body, means supporting said plate-like body adjacent said platen at said printing point, said plate-like body comprising a pair of side portions that extend in said paper feed direction and are spaced laterally on opposite sides of said printing point, and an upper bridging portion positioned above said printing point and interconnecting said side portions, said side and upper bridging portions thereby respectively defining side and upper edges of an open portion through which said print forming mechanism is enabled to have print cooperation with the writing sheet supported by said platen, said plate-like body being configured to urge the writing sheet into close adjacency with said platen at said printing point; wHerein the improvement comprises: said upper bridging portion of said plate-like body defining an upper camming edge of said open portion that extends transverse to said paper feed direction at a unidirectional angle other than substantially 90* throughout the entire space between said side portions.
Claim 5
Dependent Claim
29 words
A printer as defined in claim 1 wherein said upper camming edge is configured in cross-section normal to said writing line to provide a camming surface facing said platen.
Claim 6
Dependent Claim
22 words
A printer as defined in claim 1 wherein said upper camming edge of said open portion faces leftwardly of said writing line.
Claim 7
Dependent Claim
30 words
A printer as defined in claim 1 wherein said printing sheet support platen comprises an elongated circular cylindrical member that is rotatably mounted to provide said writing sheet feeding means.
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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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |