US4020940A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resilient coupling means for ribbon cartridge mounting plate
Assignee: Xerox Corp
•
Filing: 1975-08-18
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Granted: 1977-05-03
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Expires: 1995-08-18
Abstract
Abstract A resilient coupling device for reducing the position excursions of the carriage of a serial impact printer during print time. The resilient coupling device comprises a spring means mounted between the ribbon associated components and the remaining components of the carriage.
Inventors
- 👤 Howard L. Daley
- 👤 Gerald S. Davidson
- 👤 Svetislav Mitrovich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:22
CPC Classifications
B; B41; B41J; B41J32/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
103 words
In a serial printer having a laterally movable carriage for traversing a printing line, print means supported on said carriage to print characters during a print time, ribbon cartridge support means and means for mounting said ribbon cartridge support means to said carriage, the improvement comprising: said mounting means for said ribbon cartridge support means includes resilient coupling means operatively connected between the ribbon cartridge support means and remaining components of the carriage for reducing the position excursions of the carriage during print time, said resilient coupling means includes at least one spring having a spring rate between 4.0 lbs/in and 30.0 lbs/in.
Claim 2
Dependent Claim
103 words
In a serial printer having a laterally movable carriage for traversing a printing line, print means supported on said carriage to print characters during a print time, ribbon cartridge support means and means for mounting said ribbon cartridge support means to said carriage, the improvement comprising: said mounting means for said ribbon cartridge support means includes resilient coupling means operatively connected between the ribbon cartridge support means and remaining components of the carriage for reducing the position excursions of the carriage during print time, said resilient coupling means includes at least one spring having a spring rate between 4.0 lbs/in and 30.0 lbs/in.
Claim 3
Dependent Claim
12 words
The improvement of claim 1 wherein said spring is a compression spring.
References Cited (Backward Citations)
US3731781A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-02 | 1980-11-01 | 1981-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-02 | 1984-11-01 | 1985-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-02 | 1988-11-01 | 1989-05-03 | $7700.00 | Window Closed / Lapsed |