Patent US3815035A successfully refreshed from Google Patents.
Patent US3820458A successfully refreshed from Google Patents.
US3820458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elimination of uncontrolled background reproduction during printing
Assignee: Sheldon Industries Inc
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Filing: 1972-09-18
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Granted: 1974-06-28
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Expires: 1992-09-18
Abstract
Abstract A pressure roller travels relatively over a sheet to urge the sheet either against indicia or against rail means, to prevent uncontrolled smudging and to accept controlled smudging.
Inventors
- 👤 Innis A Mc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:00
CPC Classifications
B; B41; B41L; B41L47/00; B41L47/24; B41L47/26; B41L47/42; B41L47/46
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
218 words
In apparatus for imprinting a sheet, a. a carrier having indicia thereon and a base to support the indicia carrier with the indicia raised relative to the main extent of the carrier and presented away from the base for engagement with the sheet, b. rail means extending lengthwise along and projecting outwardly relative to the base less than the indicia but further than the main extent of the carrier, c. a pressure roller relatively movable lengthwise of and over the rail means and over the indicia to urge the sheet thereagainst, and means for urging the roller toward the indicia and the rail means during said roller relative movement and carrying the roller to have a first spacing from the base in which the roller is supported by the indicia during one portion of said roller relative movement, and to have a second spacing from the base in which the roller is supported only by the rail means during another portion of said roller relative movement, the carrier extent other than the indicia remaining free of direcT pressurization by the roller when the roller has said second spacing from the base during said other portion of roller relative movement, the rail underlying the roller when the roller overlies the indicia, and d. support means resiliently supporting the base.
Claim 2
Dependent Claim
218 words
In apparatus for imprinting a sheet, a. a carrier having indicia thereon and a base to support the indicia carrier with the indicia raised relative to the main extent of the carrier and presented away from the base for engagement with the sheet, b. rail means extending lengthwise along and projecting outwardly relative to the base less than the indicia but further than the main extent of the carrier, c. a pressure roller relatively movable lengthwise of and over the rail means and over the indicia to urge the sheet thereagainst, and means for urging the roller toward the indicia and the rail means during said roller relative movement and carrying the roller to have a first spacing from the base in which the roller is supported by the indicia during one portion of said roller relative movement, and to have a second spacing from the base in which the roller is supported only by the rail means during another portion of said roller relative movement, the carrier extent other than the indicia remaining free of direcT pressurization by the roller when the roller has said second spacing from the base during said other portion of roller relative movement, the rail underlying the roller when the roller overlies the indicia, and d. support means resiliently supporting the base.
Claim 3
Dependent Claim
15 words
The combination of claim 1 including said sheet overlying the rail means and the indicia.
Claim 4
Dependent Claim
32 words
The apparatus of claim 2 wherein the sheet carries pressure sensitive material to form an image on the sheet in response to clamping of the sheet between the indicia and said roller.
Claim 5
Dependent Claim
33 words
The apparatus of claim 1 wherein said roller is relatively movable along a defined path generally parallel to the base and said rail means extending lengthwise of the path of roller relative movement.
Claim 6
Dependent Claim
12 words
The apparatus of claim 1 wherein said carrier comprises a plastic card.
Claim 7
Dependent Claim
23 words
The apparatus of claim 1 including said carrier in the form of an elongated tape, said indicia comprising embossed portions of the tape.
Claim 8
Dependent Claim
30 words
The apparatus of claim 1 wherein said rail means comprises at least two rails which are spaced apart on the base to define a zone therebetween to receive the carrier.
Claim 9
Dependent Claim
18 words
The apparatus of claim 1 including guide means to guide movement of the base relative to the roller.
Claim 10
Dependent Claim
34 words
The apparatus of claim 1 wherein said support means comprises a second roller, and yieldable means urging the second roller toward the first mentioned roller, the first and second rollers having generally parallel axes.
Claim 11
Dependent Claim
25 words
The apparatus of claim 9 including a housing for said rollers and defining inlet and outlet openings for receiving the base moving between the rollers.
Claim 12
Dependent Claim
24 words
The apparatus of claim 10 wherein the base is recessed to removably receive and locate the indicia carrier in the form of a plate.
Claim 13
Dependent Claim
38 words
The apparatus of claim 11 including a liftable and flexible flap carried on the base for protectively covering the sheet placed between the indicia and the flap during carriage of the sheet on the base between said rollers.
Claim 14
Dependent Claim
29 words
The apparatus of claim 10 wherein the indicia carrier comprises first and second plates, and the base is recessed to removably receive and locate said first and second plates.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-27 | 1977-12-27 | 1978-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-27 | 1981-12-27 | 1982-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-27 | 1985-12-27 | 1986-06-28 | $7700.00 | Window Closed / Lapsed |