Patent US3941231A successfully refreshed from Google Patents.
US3941231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ribbon cartridge
Assignee: International Business Machines Corp
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Filing: 1974-07-03
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Granted: 1976-03-02
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Expires: 1994-07-03
Abstract
Abstract A ribbon cartridge for an endless loop inked ribbon suitable for use with a wire matrix printer, for example, is disclosed in which the cartridge includes elongated guide members to confine the path of the loop of ribbon outside of the cartridge to a predetermined path and to allow for insertion of the cartridge into a using machine without the necessity of threading inky ribbon through fixed guides on the machinery.
Inventors
- 👤 George Coleman Matuck
- 👤 Gerald Carl Sienkiewicz
- 👤 William Duncan Thorne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:06
CPC Classifications
B; B41; B41J; B41J32/00; B41J32/02; B41J33/00; B41J33/02; B41J33/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
259 words
A cassette apparatus for an endless, randomly folded, loop of inked ribbon, or web, adapted for use in a printing device comprising: a web storage compartment having walls and two parallel covers for containing the bulk of said endless loop folded randomly on its transverse axis; said storage compartment having separate inlet and outlet apertures in separate walls thereof for the ingress and egress of portions of said endless loop; continuous loop guide means for guiding, supporting and confining the entire length of the path of a loop formed in said web external to said compartment; said loop guide means extending from the point of egress of said loop in one said wall of said compartment to the point of ingress of said loop in another said wall of said compartment; said guide means being affixed externally to said compartment at said egress and ingress locations in said walls, and enclosing, together with an external wall of said compartment lying between said ingress and egress location walls in said compartment, an enclosed area, the perimeter of said area being defined by said loop guide means and by said external compartment wall, said wall being between said ingress and egress location walls; said apparatus further comprising means attached to said guide means external to said compartment for turning said web 180° about its longitudinal axis; said guide means including an aperture therein for exposing both sides of a portion of said web to the outside environment adjacent said aperture in a direction perpendicular to the flat surfaces of said web.
Claim 2
Dependent Claim
259 words
A cassette apparatus for an endless, randomly folded, loop of inked ribbon, or web, adapted for use in a printing device comprising: a web storage compartment having walls and two parallel covers for containing the bulk of said endless loop folded randomly on its transverse axis; said storage compartment having separate inlet and outlet apertures in separate walls thereof for the ingress and egress of portions of said endless loop; continuous loop guide means for guiding, supporting and confining the entire length of the path of a loop formed in said web external to said compartment; said loop guide means extending from the point of egress of said loop in one said wall of said compartment to the point of ingress of said loop in another said wall of said compartment; said guide means being affixed externally to said compartment at said egress and ingress locations in said walls, and enclosing, together with an external wall of said compartment lying between said ingress and egress location walls in said compartment, an enclosed area, the perimeter of said area being defined by said loop guide means and by said external compartment wall, said wall being between said ingress and egress location walls; said apparatus further comprising means attached to said guide means external to said compartment for turning said web 180° about its longitudinal axis; said guide means including an aperture therein for exposing both sides of a portion of said web to the outside environment adjacent said aperture in a direction perpendicular to the flat surfaces of said web.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-02 | 1979-09-01 | 1980-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-02 | 1983-09-01 | 1984-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-02 | 1987-09-01 | 1988-03-02 | $7700.00 | Window Closed / Lapsed |