Patent US1452642A successfully refreshed from Google Patents.
Patent US4425576A successfully refreshed from Google Patents.
Patent US2312503A successfully refreshed from Google Patents.
Patent US3683090A successfully refreshed from Google Patents.
Patent US4616945A successfully refreshed from Google Patents.
US4616945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Correction feed mechanism in a correction tape cartridge
Assignee: IBM Information Products Corp
•
Filing: 1985-01-31
•
Granted: 1986-10-14
•
Expires: 2005-01-31
Abstract
Abstract A cartridge 12 for correction tape 22 is disclosed which utilizes a cam follower 40 operated pawl 50/ratchet 52 for feeding of the tape 22, where the pawl 50 is operated as a result of the movement of a cam follower 40 against a cam 40 on the support frame 10. As the cartridge 12 oscillates, the pawl 50 is displaced to increment the ratchet 52 to effect feed.
Inventors
- 👤 Steven R. Komplin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:07
CPC Classifications
B; B41; B41J; B41J33/00; B41J33/14; B41J33/16; B41J33/18; B41J35/00; B41J35/22; B41J35/23
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
222 words
A tape cartridge for a typewriter using a print ribbon cartridge and including means for mounting the tape cartridge with said ribbon cartridge, said typewriter including a means for carrying a ribbon feed means and ribbon and tape cartridges thereon, including means for pivoting said ribbon cartridge and said tape cartridge to present ribbon and tape at a point for printing, said tape cartridge comprising in combination: means defining an upper and lower surface spaced apart to define a chamber therebetween to embrace a supply spool and takeup spool and tape between said upper and lower surfaces; a tape supply and a tape takeup spool in said chamber; means for permitting said tape to leave said tape cartridge immediate said supply and said takeup spools for presenting said tape to a print point for utilization; tape drive means coupled to said tape and associated with said takeup spool to effect tape movement between said supply and said takeup spools; and cam follower means projecting outwardly from said chamber and from said correction tape drive means for engagement with a cam on said means for carrying so that upon pivoting of said correction cartridge from at least the level of presentation of said tape to said print point to a lower position, said cam follower means follows said cam to effect tape feed.
Claim 2
Dependent Claim
222 words
A tape cartridge for a typewriter using a print ribbon cartridge and including means for mounting the tape cartridge with said ribbon cartridge, said typewriter including a means for carrying a ribbon feed means and ribbon and tape cartridges thereon, including means for pivoting said ribbon cartridge and said tape cartridge to present ribbon and tape at a point for printing, said tape cartridge comprising in combination: means defining an upper and lower surface spaced apart to define a chamber therebetween to embrace a supply spool and takeup spool and tape between said upper and lower surfaces; a tape supply and a tape takeup spool in said chamber; means for permitting said tape to leave said tape cartridge immediate said supply and said takeup spools for presenting said tape to a print point for utilization; tape drive means coupled to said tape and associated with said takeup spool to effect tape movement between said supply and said takeup spools; and cam follower means projecting outwardly from said chamber and from said correction tape drive means for engagement with a cam on said means for carrying so that upon pivoting of said correction cartridge from at least the level of presentation of said tape to said print point to a lower position, said cam follower means follows said cam to effect tape feed.
Claim 3
Dependent Claim
20 words
A correction ribbon cartridge of claim 1 wherein said cam follower drives a pawl to effect feed of said tape.
Claim 4
Dependent Claim
29 words
A correction ribbon cartridge of claim 2 wherein said drive means comprises a ratchet drivingly associated with said takeup spool and engaged in a driving fashion by said pawl.
Claim 5
Dependent Claim
16 words
A correction ribbon cartridge of claim 2 wherein said pawl is pivotally mounted within said cartridge.
Claim 6
Dependent Claim
17 words
A correction ribbon cartridge of claim 2 wherein said pawl is slideably reciprocatingly mounted within said cartridge.
References Cited (Backward Citations)
US3863749A
Cited
US3871507A
Cited
US4302118A
Cited
EP0008279A2
Cited
US4385848A
Cited
US4411542A
Cited
JPS58191183A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-10-13 | 1990-04-14 | 1990-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-13 | 1994-04-14 | 1994-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-13 | 1998-04-14 | 1998-10-14 | $7700.00 | Window Closed / Lapsed |