Patent US4641830A successfully refreshed from Google Patents.
US4641830A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Printer paper feeding apparatus
Assignee: Juki Corp
•
Filing: 1985-11-14
•
Granted: 1987-02-10
•
Expires: 2005-11-14
Abstract
Abstract A printer paper feeding apparatus providing cams at the central portion of a paper release lever around a platen shaft. A first cam is adapted to release paper bail rollers by rotation of the paper release lever. A second cam is adapted to contact and release presser rollers against a platen by rotation of the paper release lever.
Inventors
- 👤 Kazuhiro Okuda
- 👤 Makoto Tanaka
- 👤 Wataru Kuramitsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:31
CPC Classifications
B; B41; B41J; B41J13/00; B41J13/02; B41J13/036; B41J13/10; B41J13/14; B41J13/16
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
164 words
A paper feeding apparatus for a printer comprising: (a) a machine frame; (b) a platen rotatably supported by said machine frame; (c) a lever rotatably supported by said machine frame; (d) a paper bail roller adapted to contact said platen; (e) a paper bail arm, one end of said paper bail arm rotatably supported by said machine frame and the other end rotatably supporting said paper bail roller; (f) a presser roller adapted to contact said platen; (g) a presser arm, one end of said presser arm rotatably supported by said machine frame and the other end rotatably supporting said presser roller; (h) a first cam fixedly attached to the center portion of said lever and adapted to release said paper bail roller from contact with said platen on manipulation of said lever; and (i) a second cam fixedly attached to the center portion of said lever and adapted to release said presser roller from contact with said platen on manipulation of said lever.
Claim 2
Dependent Claim
164 words
A paper feeding apparatus for a printer comprising: (a) a machine frame; (b) a platen rotatably supported by said machine frame; (c) a lever rotatably supported by said machine frame; (d) a paper bail roller adapted to contact said platen; (e) a paper bail arm, one end of said paper bail arm rotatably supported by said machine frame and the other end rotatably supporting said paper bail roller; (f) a presser roller adapted to contact said platen; (g) a presser arm, one end of said presser arm rotatably supported by said machine frame and the other end rotatably supporting said presser roller; (h) a first cam fixedly attached to the center portion of said lever and adapted to release said paper bail roller from contact with said platen on manipulation of said lever; and (i) a second cam fixedly attached to the center portion of said lever and adapted to release said presser roller from contact with said platen on manipulation of said lever.
Claim 3
Dependent Claim
37 words
A paper feeding apparatus for a printer as recited in claim 1, wherein said first cam provides cam surfaces adapted to cooperate with said paper bail arm providing means for locking the apparatus in the released 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) | 1990-02-09 | 1990-08-11 | 1991-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-09 | 1994-08-11 | 1995-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-09 | 1998-08-11 | 1999-02-10 | $7700.00 | Window Closed / Lapsed |