§
Luxuse
Patent Intelligence
Sign In
← Back to Patent Explorer
EP0435108A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Cassette for thermal transcription film

Assignee: Hitachi Ltd
•
Filing: 1990-12-14
•
Granted: —
•
Expires: 2010-12-14
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract This invention relates to a thermal transcription film cassette (1) for use in a thermal transcription recording device. Engagement portions on three ends among four ends of a pair of spools are formed into the same shapes, an ink film (7) being wound around the pair of spools. Engagement portions on one end among the four ends of the pair of spools (8,9) are formed into shapes which are different from the shapes of the engagement portions on the three ends of the spools. When the pair of spools are mounted in the cassette (1), they are prevented from being erroneously mounted. It is easy to maintain the film cassette.

Inventors

  • 👤 Tsugio Suzuki
  • 👤 Akira Shimizu

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-07 10:00
CPC Classifications
B; B41; B41J; B41J17/00; B41J17/32

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 149 words
A thermal transcription ink film cassette for use in a thermosensitive transcription recording device wherein engagement portions are provided to both ends of a pair of spools in which one end of an ink film is wound around the spool on the side of feeding, the other end of the ink film being wound around the spool on the side of winding, and wherein spool drive members are provided to one end of said cassette, said drive members being engaged with and fitted to said engagement portions on ends of said pair of spools, thereby causing said pair of spools to rotate, and wherein members are provided to the other end of said cassette, said members having a mechanism in which said members are engaged with the engagement portions on the other ends of said pair of spools, thereby controlling, in axial directions, positions of said pair of spools.
Claim 2
Dependent Claim 118 words
A thermal transcription ink film cassette according to claim 1, wherein the engagement portions on three ends among the four ends of the pair of spools are formed into the same shape, the engagement portions on the one end among the four ends of said pair of spools being formed into shapes which are different from the shapes of the engagement portions on the three ends of the spools, and wherein engagement members, capable of being engaged with the engagement portions on the three ends of said pair of spools, are provided in said cassette, and engagement members, capable of being engaged only with the one end of said pair of spools, are also provided in said cassette.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag