US3882989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Typewriter ribbon loading arrangement to facilitate replacement or substitution of ribbon
Assignee: TRIUMPH-ADLER AG A CORP OF GERMANY
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Filing: 1974-01-28
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Granted: 1975-05-13
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Expires: 1994-01-28
Abstract
Abstract A ribbon lifting and feeding arrangement for a single element typewriter is divided into upper and lower portions serving as a ribbon cartridge having a ribbon lifter pivotally carried thereon for being operatively associated with a drive mechanism of the lower portion for moving the ribbon lifter between a lowered rest position and an elevated printing position. The ribbon lifter has a pair of arms for movement on opposite sides of the single print element, and the upper portion is separable from the lower portion to facilitate replacement of the ribbon or the substitution of another upper portion having a different type of ribbon. To prevent damage to the type characters on the print element as the upper portion is being placed on the lower portion, the upper portion is pivotally coupled to the lower portion for guiding the arms of the ribbon lifter past the print element during movement between an operating position and a loading position, and the coupling between the upper portion and the lower portion is releasable to permit the substitution of another upper portion having a different type of ribbon.
Inventors
- 👤 Joseph L Morelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:41
CPC Classifications
B; B41; B41J; B41J31/00; B41J31/10
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
231 words
In a business machine having a type element supported on a carriage for impacting against a platen in a printing operation, and a ribbon lifting and feeding arrangement for lifting a ribbon from a lowered rest position to a printing position adjacent the platen prior to the impacting of the type element and for advancing a length of the ribbon past the type element with each printing operation, the improvement comprising: said ribbon lifting and feeding arrangement including an upper portion serving as a holder for the ribbon and a lower portion mounted fixedly on said carriage for supporting said upper portion in an operating position, said upper portion having a ribbon lifter movably supported thereon for carrying a portion of the ribbon adjacent the type element for movement between the rest position and the printing position, said lower portion having a ribbon lifting drive means operably associated with the ribbon lifter of said upper portion in the operating position for driving the ribbon lifter from the lowered rest position to the printing position, and said upper portion being coupled to said lower portion for guided movement from the operating position adjacent the type element to a generally inverted loading position facilitating the replacement of the ribbon with the ribbon lifter being guided past the type element on the carriage during movement between the operating position and the inverted loading position.
Claim 2
Dependent Claim
231 words
In a business machine having a type element supported on a carriage for impacting against a platen in a printing operation, and a ribbon lifting and feeding arrangement for lifting a ribbon from a lowered rest position to a printing position adjacent the platen prior to the impacting of the type element and for advancing a length of the ribbon past the type element with each printing operation, the improvement comprising: said ribbon lifting and feeding arrangement including an upper portion serving as a holder for the ribbon and a lower portion mounted fixedly on said carriage for supporting said upper portion in an operating position, said upper portion having a ribbon lifter movably supported thereon for carrying a portion of the ribbon adjacent the type element for movement between the rest position and the printing position, said lower portion having a ribbon lifting drive means operably associated with the ribbon lifter of said upper portion in the operating position for driving the ribbon lifter from the lowered rest position to the printing position, and said upper portion being coupled to said lower portion for guided movement from the operating position adjacent the type element to a generally inverted loading position facilitating the replacement of the ribbon with the ribbon lifter being guided past the type element on the carriage during movement between the operating position and the inverted loading position.
Claim 3
Dependent Claim
58 words
In a business machine according to claim 1, said upper portion being releasably coupled to said lower portion for enabling another upper portion having a ribbon lifter movably supported thereon to be coupled to said lower portion for guided movement between a loading position and an operating position with the ribbon lifter being guided past the type element.
Claim 4
Dependent Claim
124 words
In a business machine according to claim 1: shaft means associated with one of said upper and lower portions of said ribbon lifting and feeding arrangement for defining an axis for pivotal movement of said upper portion between the loading position and the operating position, said other portion of said ribbon lifting and feeding arrangement having means defining notches for receiving said shaft means and supporting said upper portion for pivotal movement about the axis defined by said shaft means between the loading position and the operating position, and cooperating guide surfaces on said upper portion and said lower portion for axially locating said shaft means relative to said notches for guiding the ribbon lifter supported on said upper portion past the type elemeNt.
Claim 5
Dependent Claim
74 words
In a business machine according to claim 3, the combination further comprising: latch means associated with said portion of said ribbon lifting and feeding arrangement having said notches for releasably securing said shaft means in said notches, and said upper and lower portions having cooperating abutting surfaces for blocking pivotal movement of said upper portion about the axis defined by said shaft means with the upper portion disposed generally horizontally at the loading position.
Claim 6
Dependent Claim
63 words
In a business machine according to claim 4: said latch means being resiliently biased to hold said shaft means in said notches, and said latch means having a camming surface leading to a hook portion for engagement by said shaft means to effect a camming movement of said latch means relative to said notches until said shaft means moves past the hook portion.
References Cited (Backward Citations)
US3349888A
Cited
US3346090A
Cited
US3349887A
Cited
US3513957A
Cited
US3643777A
Cited
US3643779A
Cited
US3782521A
Cited
US3804227A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-12 | 1978-11-11 | 1979-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-12 | 1982-11-11 | 1983-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-12 | 1986-11-11 | 1987-05-13 | $7700.00 | Window Closed / Lapsed |