Patent US1763490A successfully refreshed from Google Patents.
Patent US3916787A successfully refreshed from Google Patents.
US3916787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printing platen
Assignee: Addmaster Corp
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Filing: 1974-04-18
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Granted: 1975-11-04
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Expires: 1994-04-18
Abstract
Abstract A printing platen comprising a relatively soft elastomeric body and a thin sheet of relatively hard plastic or metal which is held taut against the surface of the body by spring pressure at the point where printing is to occur.
Inventors
- 👤 Richard L Roggensack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:34
CPC Classifications
B; B41; B41J; B41J11/00; B41J11/02; B41J11/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
91 words
In a data printer, means carrying printing type characters, a printing platen extending over said type characters and normally spaced therefrom, means for causing said platen and said type characters to impress a record medium therebetween, said platen comprising a body of relatively soft elastomeric material, a stiffener sheet of relatively hard flexible material extending over said body, and means including a spring acting on said stiffener sheet for maintaining said stiffener sheet taut in intimate contact with a portion of said platen body against which said record medium is impressed.
Claim 2
Dependent Claim
91 words
In a data printer, means carrying printing type characters, a printing platen extending over said type characters and normally spaced therefrom, means for causing said platen and said type characters to impress a record medium therebetween, said platen comprising a body of relatively soft elastomeric material, a stiffener sheet of relatively hard flexible material extending over said body, and means including a spring acting on said stiffener sheet for maintaining said stiffener sheet taut in intimate contact with a portion of said platen body against which said record medium is impressed.
Claim 3
Dependent Claim
100 words
In a data printer, a plurality of type members arranged in side-by-side relation and carrying type characters, a printing platen extending over said type characters and normally spaced therefrom, and means for causing said platen and said type characters to impress a record medium therebetween, said platen comprising a cylindrical body of relatively soft elastomeric material, a stiffener sheet of relatively hard flexible material wrapped over the portion of said body which lies adjacent said type characters, and means including a spring acting on said stiffener sheet for maintaining said sheet in intimate contact with said portion of said body.
Claim 4
Dependent Claim
100 words
In a data printer, a plurality of type members arranged in side-by-side relation and carrying type characters, a printing platen extending over said type characters and normally spaced therefrom, and means for causing said platen and said type characters to impress a record medium therebetween, said platen comprising a cylindrical body of relatively soft elastomeric material, a stiffener sheet of relatively hard flexible material wrapped over the portion of said body which lies adjacent said type characters, and means including a spring acting on said stiffener sheet for maintaining said sheet in intimate contact with said portion of said body.
Claim 5
Dependent Claim
148 words
In a data printer, a plurality of type members arranged in side-by-side relation and carrying type characters, a printing platen extending over said type characters and normally spaced therefrom, a toggle device comprising first and second link members; said first link member being connected at one end to said platen, a pivot member connecting said first link member at the opposite end thereof to one end of said second link member, and means pivotally supporting the opposite end of said second link member; means for actuating said toggle device to cause said platen to impress a record medium against said type characters, said platen comprising a body of relatively soft elastomeric material, a stiffener sheet of relatively hard flexible material wrapped around said platen body, and spring means extending between said stiffener sheet and said pivot member for maintaining said stiffener sheet in intimate contact with said platen.
Claim 6
Dependent Claim
148 words
In a data printer, a plurality of type members arranged in side-by-side relation and carrying type characters, a printing platen extending over said type characters and normally spaced therefrom, a toggle device comprising first and second link members; said first link member being connected at one end to said platen, a pivot member connecting said first link member at the opposite end thereof to one end of said second link member, and means pivotally supporting the opposite end of said second link member; means for actuating said toggle device to cause said platen to impress a record medium against said type characters, said platen comprising a body of relatively soft elastomeric material, a stiffener sheet of relatively hard flexible material wrapped around said platen body, and spring means extending between said stiffener sheet and said pivot member for maintaining said stiffener sheet in intimate contact 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) | 1978-11-03 | 1979-05-05 | 1979-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-03 | 1983-05-05 | 1983-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-03 | 1987-05-05 | 1987-11-04 | $7700.00 | Window Closed / Lapsed |