§
Luxuse
Patent Intelligence
Sign In
← Back to Patent Explorer
US4964743A Expired / Lapsed US ⏱️ 0.0 years remaining

Receptacle for a holder for a ribbon for use in typewriters or similar machines

Assignee: TA Triumph-Adler GmbH
•
Filing: 1988-12-06
•
Granted: 1990-10-23
•
Expires: 2008-12-06
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A receptacle for a holder of a ribbon of a typewriter or similar machine. The holder has a base plate on which laterally pivotable retaining elements are disposed. The retaining elements support drive, braking and tensioning elements for the ribbon. If the retaining elements are pivoted away, a holder, e.g. in the shape of a ribbon cassette, can be inserted into the device. When the retaining elements have again been pivoted back, they surround the holder of the ribbon in the form of a shell. The drive, braking and tensioning elements then automatically take up their functionally correct positions. The device has the advantage that only the holder with the used-up ribboon need be discarded, while the drive, braking and tensioning elements remain in the device and thus can be repeatedly used. Manufacture of the holder with the ribbon is made considerably more economical this way and the value of the material to be discarded is reduced.

Inventors

  • 👤 Johannes Haftmann
  • 👤 Werner Haczek

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 01:59
CPC Classifications
B; B41; B41J; B41J35/00; B41J35/28

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 57 words
A receptacle for a holder of a ribbon for typewriters or similar machines, comprising: a base plate; and pivotable retaining elements disposed on said base plate for surrounding the holder of the ribbon in a shell-like manner in an operating position, said retaining elements having a drive element, a braking element and tensioning elements for the ribbon.
Claim 2
Dependent Claim 57 words
A receptacle for a holder of a ribbon for typewriters or similar machines, comprising: a base plate; and pivotable retaining elements disposed on said base plate for surrounding the holder of the ribbon in a shell-like manner in an operating position, said retaining elements having a drive element, a braking element and tensioning elements for the ribbon.
Claim 3
Dependent Claim 28 words
A device in accordance with claim 1, wherein the drive element comprises a sprocket wheel which can be brought into interaction with a take-up spool for the ribbon.
Claim 4
Dependent Claim 38 words
A device in accordance with claim 1, having a braking element comprising a spring arm which brakingly acts on a core of a supply spool of the ribbon and simultaneously presses a take-up spool against a sprocket wheel.
Claim 5
Dependent Claim 31 words
A device in accordance with claim 1, wherein the tensioning elements comprise a roller, rotatably disposed on a spring arm, around which the ribbon can be guided and put under tension.
Claim 6
Dependent Claim 47 words
A device in accordance with claim 1, wherein the receptacle further comprises a rear wall disposed on a rear side of said base plate perpendicular with respect thereto, and the pivotable retaining elements are pivoted off respective ends of said rear wall perpendicular to said base plate.
Claim 7
Dependent Claim 44 words
A device in accordance with claim 2, wherein the drive element further comprises a shaft about which the sprocket wheel is disposed, and a wheel attached to said shaft and exposed to the outside of the retaining element for allowing tensioning of the ribbon.
Claim 8
Dependent Claim 45 words
A device in accordance with claim 1, wherein the retaining elements are pivotable between the operating position in which the retaining element surrounds the holder of the ribbon in a shell-like manner an open position which allows the holder to be inserted into the receptacle.

References Cited (Backward Citations)

DE2405099A1 Cited
US3976183A Cited
US3977511A Cited
US4213715A Cited
US4264223A Cited
US4265552A Cited
US4359288A Cited
US4299504A Cited
GB2084958A Cited
EP0234304A1 Cited
US4854755A Cited
US4861177A Cited
US4815875A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1993-10-22 1994-04-23 1994-10-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1997-10-22 1998-04-23 1998-10-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2001-10-22 2002-04-23 2002-10-23 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag