Patent US1628939A successfully refreshed from Google Patents.
US3347433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perforated web driving mechanism
Assignee: Bull General Electric NV
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Filing: 1966-02-02
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Granted: 1967-10-17
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Expires: 1986-02-02
Abstract
No abstract record available.
Inventors
- 👤 Bernard Michel Andre Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:17
CPC Classifications
B; B65; B65H; B65H20/00; B65H20/20; B41; B41J; B41J11/00; B41J11/26; B41J11/30; B41L; B41L5/00; B41L5/04; B41L5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
A MECHANISM FOR DRIVING A WEB HAVING PERFORATIONS REGULARLY SPACED ALONG ITS LENGTH, WHICH PERFORATIONS ARE ADAPTED TO BE ENGAGED WITH SPROCKETS DISPLACEABLE IN A PLANE PERPENDICULAR TO THE WEB, COMPRISING TWO GUIDE MEMBERS SITUATED ON EITHER SIDE OF SAID PLANE, SAID MEMBERS BEING SO FORMES THAT EACH OF THEM PROVIDES A GUIDE PATH WHICH COMPRISES TWO CURVED PORTIONS OF A LARGE RADIUS, WHICH ARE JOINED TO TWO CURVED PORTIONS OF SMALL RADIUS IN A COMMON PLANE A PLURALITY OF DRIVING ELEMENTS INSERTED IN THE GUIDE PATHS FORMES BETWEEN THE SAID TWO MEMBERS, EACH DRIVING ELEMENT BEING PROVIDED ON ONE SIDE WITH A SPROCKET AND ON THE OTHER SIDE WITH ENGAGEMENT PROJECTIONS, THE DRIVING ELEMENTS HAVING A UNIFORM. LENGTH AND ENDS OF SUITABLE SHAPE TO ENABLE TWO NEIGHBOURING ELEMENTS TO REMAIN IN CONTACT REGARDLESS OF THE CURVATURE AT THE POINT OF THE GUIDE PATH AT WHICH THEY ARE SITUATED, AND A DRIVING PINION SITUATED TOWARDS ONE OF SAID PORTIONS OF SMALL RADIUS AND ARRANGED TO ADVANCE THE DRIVING ELEMENTS BY PROPULSION ON THE ENGAGEMENT PROJECTIONS OF SAID ELEMENTS.
Claim 2
Dependent Claim
178 words
A MECHANISM FOR DRIVING A WEB HAVING PERFORATIONS REGULARLY SPACED ALONG ITS LENGTH, WHICH PERFORATIONS ARE ADAPTED TO BE ENGAGED WITH SPROCKETS DISPLACEABLE IN A PLANE PERPENDICULAR TO THE WEB, COMPRISING TWO GUIDE MEMBERS SITUATED ON EITHER SIDE OF SAID PLANE, SAID MEMBERS BEING SO FORMES THAT EACH OF THEM PROVIDES A GUIDE PATH WHICH COMPRISES TWO CURVED PORTIONS OF A LARGE RADIUS, WHICH ARE JOINED TO TWO CURVED PORTIONS OF SMALL RADIUS IN A COMMON PLANE A PLURALITY OF DRIVING ELEMENTS INSERTED IN THE GUIDE PATHS FORMES BETWEEN THE SAID TWO MEMBERS, EACH DRIVING ELEMENT BEING PROVIDED ON ONE SIDE WITH A SPROCKET AND ON THE OTHER SIDE WITH ENGAGEMENT PROJECTIONS, THE DRIVING ELEMENTS HAVING A UNIFORM. LENGTH AND ENDS OF SUITABLE SHAPE TO ENABLE TWO NEIGHBOURING ELEMENTS TO REMAIN IN CONTACT REGARDLESS OF THE CURVATURE AT THE POINT OF THE GUIDE PATH AT WHICH THEY ARE SITUATED, AND A DRIVING PINION SITUATED TOWARDS ONE OF SAID PORTIONS OF SMALL RADIUS AND ARRANGED TO ADVANCE THE DRIVING ELEMENTS BY PROPULSION ON THE ENGAGEMENT PROJECTIONS OF SAID ELEMENTS.
References Cited (Backward Citations)
US3032341A
Cited
US3209973A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |