Patent US4288168A successfully refreshed from Google Patents.
US4288168A
Expired / Lapsed
US
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Arrangement for driving a printer carriage in teletypewriters or data printers
Assignee: Siemens AG
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Filing: 1979-06-12
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Granted: 1981-09-08
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Expires: 1999-06-12
Abstract
Abstract An arrangement for the drive of a printer carriage in teletypewriters or data printers in which pliable drawing means secured to the printer carriage is simultaneously driven by two drive motors. The drive motors are of identical design and cooperate with drive guide rollers arranged exteriorly of the printing area. Stepping motors preferably are employed as the drive motors and arranged with a displacement by half a step and can be alternately driven, so that one of the two stepping motors always functions in optimum torque range.
Inventors
- 👤 Ulrich Mayr
- 👤 Dietmar Horeth
- 👤 Hans Kusmierz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:47
CPC Classifications
H; H04; H04L; H04L13/00; H04L13/02; H04L13/04; B; B41; B41J; B41J19/00; B41J19/18; B41J19/20; B41J19/202
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
98 words
In an arrangement for the drive of a printer carriage in teletypewriters or teleprinters, the combination of a platen for supporting a recording medium, a printer carriage disposed for movement relative to the platen and carrying a printing head, a pair of drive motors of identical design, each disposed adjacent opposite sides of the carriage in the direction of travel thereof, and pliable drawing means operatively connecting said carriage and said motors, whereby said motors are always simultaneously driven by means of identical control signals during the transport of said carriage and head on said pliable drawing means.
Claim 2
Dependent Claim
98 words
In an arrangement for the drive of a printer carriage in teletypewriters or teleprinters, the combination of a platen for supporting a recording medium, a printer carriage disposed for movement relative to the platen and carrying a printing head, a pair of drive motors of identical design, each disposed adjacent opposite sides of the carriage in the direction of travel thereof, and pliable drawing means operatively connecting said carriage and said motors, whereby said motors are always simultaneously driven by means of identical control signals during the transport of said carriage and head on said pliable drawing means.
Claim 3
Dependent Claim
13 words
An arrangement according to claim 1 wherein said drive motors are stepping motors.
Claim 4
Dependent Claim
27 words
An arrangement according to claim 1, wherein said drive motors are arranged at the guide locations of the drawing means, and drive respective guide rollers disposed thereat.
Claim 5
Dependent Claim
13 words
An arrangement according to claim 3 wherein said drive motors are stepping motors.
Claim 6
Dependent Claim
20 words
An arrangement according to claim 4 wherein a predetermined holding current is supplied to each stepping motor during operational pauses.
Claim 7
Dependent Claim
20 words
An arrangement according to claim 4, wherein current to one of the stepping motors is switched off during operational pauses.
Claim 8
Dependent Claim
20 words
An arrangement according to claim 4, wherein stepping motors are operated with a relative displacement of half a step therebetween.
Claim 9
Dependent Claim
20 words
An arrangement according to claim 7, wherein a predetermined holding current is supplied to each stepping motor during operation pauses.
Claim 10
Dependent Claim
20 words
An arrangement according to claim 7, wherein current to one of the stepping motors is switched off during operational pauses.
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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) | 1984-09-07 | 1985-03-09 | 1985-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-07 | 1989-03-09 | 1989-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-07 | 1993-03-09 | 1993-09-08 | $7700.00 | Window Closed / Lapsed |