US3750569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring biased axially shifting platen roller in a traveling cylinder imprinter
Assignee: DBS Inc
•
Filing: 1972-01-10
•
Granted: 1973-08-07
•
Expires: 1992-01-10
Abstract
Abstract A data recorder is provided which has a carriage movable over a bed having printing elements thereon. The carriage is movable from a home position to an actuated position and returned to the home position to perform a printing function. The carriage mounts a roller platen which is axially shiftable, in response to movement of the carriage, to two different positions to thereby travel in two separate parallel paths of travel. A yoke is provided to shift the platen betwwen the two positions. The yoke is moved to shift the platen in one direction by movement of the carriage through a stroke past the printing elements and the yoke is releasably latched in this position. At the other end of the carriage stroke the latch is released and biasing means causes the yoke to shift the platen to its other position.
Inventors
- 👤 W Janik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:51
CPC Classifications
B; B41; B41L; B41L19/00; B41L47/00; B41L47/42; B41L47/46; H; H03; H03G; H03G3/00; H03G3/02; H03G3/04; H03G3/10
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
253 words
A data recorder comprising: a bed for holding printing elements and a form to be imprinted; a platen carriage movable in a path over the bed from a first end of the path to a second end and return to the first end of the path to perform a printing cycle; a roller platen; means supporting the roller platen on the platen carriage for rotation about an axis transverse to the direction of platen carriage movement and for printing engagement with the printing elements on a zone within the path; shifting means for shifting the roller platen along said axis between a first and a second position thereon; biasing means associated with the shifting means for normally urging the roller platen to the first position; actuating means positioned to coact with the shifting means for shifting the roller platen to the second position in response to movement of the platen carriage to the first end of the path; releasable latching means disposed for releasably latching the roller platen in the second position and maintaining the roller platen in the second position during movement of the platen carriage to the second end of the path; and release means disposed between the zone of the printing elements and the second end of the path for releasing the latching means in response to movement of the platen carriage from the first end of the path; whereby the roller platen is shifted from the second to the first position within a minimum distance of platen carriage travel.
Claim 2
Dependent Claim
253 words
A data recorder comprising: a bed for holding printing elements and a form to be imprinted; a platen carriage movable in a path over the bed from a first end of the path to a second end and return to the first end of the path to perform a printing cycle; a roller platen; means supporting the roller platen on the platen carriage for rotation about an axis transverse to the direction of platen carriage movement and for printing engagement with the printing elements on a zone within the path; shifting means for shifting the roller platen along said axis between a first and a second position thereon; biasing means associated with the shifting means for normally urging the roller platen to the first position; actuating means positioned to coact with the shifting means for shifting the roller platen to the second position in response to movement of the platen carriage to the first end of the path; releasable latching means disposed for releasably latching the roller platen in the second position and maintaining the roller platen in the second position during movement of the platen carriage to the second end of the path; and release means disposed between the zone of the printing elements and the second end of the path for releasing the latching means in response to movement of the platen carriage from the first end of the path; whereby the roller platen is shifted from the second to the first position within a minimum distance of platen carriage travel.
Claim 3
Dependent Claim
71 words
A data recorder as set forth in claim 1 wherein the shifting means includes a yoke mounted on the platen carriage and pivotally movable between two extreme positions for moving the roller platen to either of its two positions, said yoke having an engagement surface formed thereon; and said releasable latching means comprising a pawl mounted on the platen carriage and disposed to releasably engage the engagement surface of the yoke.
Claim 4
Dependent Claim
35 words
A data recorder as set forth in claim 2 wherein a spring means normally biases the pawl into engagement with the engagement surface of the yoke when the roller platen is in its second position.
Claim 5
Dependent Claim
48 words
A data recorder as set forth in claim 3 wherein the release means includes an inclined surface positioned to coact with the pawl for moving the pawl out of engagement with the engagement surface of the yoke at the second end of the path of the platen carriage.
Claim 6
Dependent Claim
165 words
A data recorder comprising: a bed for holding printing elements and a form to be imprinted; a platen carriage movable forwardly across the bed from a home position to an actuated position and back to home position to perform a printing cycle; a roller platen; means supporting the roller platen on the platen carriage for rotation about an axis transverse to the direction of platen carriage movement; shifting means for shifting the roller platen along said axis between a first and a second position thereof, said shifting means including biasing means normally urging the roller platen to The first position; actuating means positioned to coact with the shifting means for shifting the roller platen to the second position in response to movement of the platen carriage to the home position; releasable latching means disposed for releasably latching the roller platen in the second position; and release means disposed for releasing the latching means in response to movement of the platen carriage to the actuated position.
Claim 7
Dependent Claim
165 words
A data recorder comprising: a bed for holding printing elements and a form to be imprinted; a platen carriage movable forwardly across the bed from a home position to an actuated position and back to home position to perform a printing cycle; a roller platen; means supporting the roller platen on the platen carriage for rotation about an axis transverse to the direction of platen carriage movement; shifting means for shifting the roller platen along said axis between a first and a second position thereof, said shifting means including biasing means normally urging the roller platen to The first position; actuating means positioned to coact with the shifting means for shifting the roller platen to the second position in response to movement of the platen carriage to the home position; releasable latching means disposed for releasably latching the roller platen in the second position; and release means disposed for releasing the latching means in response to movement of the platen carriage to the actuated position.
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) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |