US4948276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Typewriter, printer or the like and ribbon cassette therefor
Assignee: TA Triumph-Adler GmbH
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Filing: 1989-06-09
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Granted: 1990-08-14
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Expires: 2009-06-09
Abstract
Abstract In an electronically controlled typewriter, a printer or the like with an exchangeable ribbon cassette, which is provided with identifying codings and where the ribbon cassette is pivotable between a lowered position of rest and an elevated printing or operating position around the cassette base facing away from the printing area, it is provided in order to attain a simple and dependably readable coding which can discriminate between a plurality of different types of ribbon cassettes, that at a defined radial distance from the base of the ribbon cassette, which is to be inserted, a sensor is disposed at the side of the pivot path of the same, which gives off an electrical output signal in reference to a changing magnetic field. It is provided in a ribbon cassette for such a typewriter or such a printer to dispose at least one bistable magnetic element on a lateral surface of the ribbon cassette.
Inventors
- 👤 Johannes Haftmann
- 👤 Rudolf Schmeykal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:55
CPC Classifications
B; B41; B41J; B41J35/00; B41J35/36
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
149 words
An electronically controlled printer having an exchangeable ribbon cassette having a base comprising in combination: an identifying magnetic coding including at least one bistable magnetic element located at a defined radial distance from a pivot path on said cassette; said pivot point being located on said cassette base facing away from the printing area; means for pivoting said cassette between a lowered position of rest and an elevated printing or work position and for pivoting around said pivot point on said cassette; a sensory means disposed at said defined radial distance from cassette pivot point, and disposed upon a portion of said printer other than said cassette; wherein said sensory means is located adjacent to said identifying coding on said cassette; and wherein an electrical output signal is generated in response to the movement of said identifying coding with respect to said sensor which senses a changing magnetic field.
Claim 2
Dependent Claim
149 words
An electronically controlled printer having an exchangeable ribbon cassette having a base comprising in combination: an identifying magnetic coding including at least one bistable magnetic element located at a defined radial distance from a pivot path on said cassette; said pivot point being located on said cassette base facing away from the printing area; means for pivoting said cassette between a lowered position of rest and an elevated printing or work position and for pivoting around said pivot point on said cassette; a sensory means disposed at said defined radial distance from cassette pivot point, and disposed upon a portion of said printer other than said cassette; wherein said sensory means is located adjacent to said identifying coding on said cassette; and wherein an electrical output signal is generated in response to the movement of said identifying coding with respect to said sensor which senses a changing magnetic field.
Claim 3
Dependent Claim
43 words
A printer in accordance with claim 1, wherein the sensor is disposed at the height of said magnetic coding, wherein said coding is located on a lateral surface of said cassette, and said sensory is spring-loaded in the direction toward said lateral surface.
Claim 4
Dependent Claim
20 words
A ribbon cassette in accordance with claim 2 wherein said lateral surface lies in a radial plane about said pivot.
Claim 5
Dependent Claim
34 words
A ribbon cassette for an electronically controlled printer in accordance with claim 1, wherein said magnetic coding further comprises at least one bistable magnetic element disposed on a lateral surface of the ribbon cassette.
Claim 6
Dependent Claim
19 words
A ribbon cassette in accordance with claim 4, wherein said at least one bistable element is a Wiegand wire.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-08-13 | 1994-02-12 | 1994-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-13 | 1998-02-12 | 1998-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-13 | 2002-02-12 | 2002-08-14 | $7700.00 | Window Closed / Lapsed |