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US4616945A Expired / Lapsed US ⏱️ 0.0 years remaining

Correction feed mechanism in a correction tape cartridge

Assignee: IBM Information Products Corp
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Filing: 1985-01-31
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Granted: 1986-10-14
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Expires: 2005-01-31
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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

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