US3276648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Intermittent web feed mechanism with trigger stop
Assignee: CHAMPLAIN CO Inc
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Filing: 1964-05-07
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Granted: 1966-10-04
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Expires: 1984-05-07
Abstract
No abstract record available.
Inventors
- 👤 Jr Clarence A Lewis
- 👤 James F O'brien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:32
CPC Classifications
B; B65; B65H; B65H20/00; B65H20/02; B65H20/04; B41; B41F; B41F13/00; B41F13/02; B41F13/04; B65H23/00; B65H23/04; B65H23/046; B65H23/18; B65H23/188; B65H23/1882
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A SYSTEM FOR FEEDING A MOVING WEB THROUGH WEBTREATING APPARATUS WHICH OPERATES ON THE WEB WHEN STATIONARY AND FOR CAUSING SAID OPERATION TO BE IN PROPER REGISTRATION WITH A PREVIOUS OPERATION ON THE WEB, SAID APPARATUS COMPRISING AN INTERMITTENT WEB FEED MECHANISM INCLUDING FEED ROLLERS TO MOVE THE WEB THROUGH THE APPARATUS INTERMITTENTLY, A CLAMP PRECEDING THE APPARATUS TO MOMENTARILY CLAMP THE WEB WHILE IT IS MOVING SLOWLY, AND MEANS INCLUDING AN ELECTRIC EYE WEB SCANNER TO TRIGGER THE CLAMP, SAID CLAMP BEING ELECTROMAGNETICALLY ACTUATED, SAID SCANNER SERVING TO TRIGGER SAID CLAMP SLIGHTLY AHEAD TO ALLOW TIME FOR THE CLAMP TO OPERATE, AND MEANS DRIVEN BY THE APPARATUS AT A SPEED PROPORTIONAL TO THE WEB SPEED TO VARY THE TRIGGER TIMING LEAD IN ORDER TO COMPENSATE FOR ANY CHARGE IN AVERAGE WEB SPEED.
Claim 2
Independent Claim
133 words
A SYSTEM FOR FEEDING A MOVING WEB THROUGH WEBTREATING APPARATUS WHICH OPERATES ON THE WEB WHEN STATIONARY AND FOR CAUSING SAID OPERATION TO BE IN PROPER REGISTRATION WITH A PREVIOUS OPERATION ON THE WEB, SAID APPARATUS COMPRISING AN INTERMITTENT WEB FEED MECHANISM INCLUDING FEED ROLLERS TO MOVE THE WEB THROUGH THE APPARATUS INTERMITTENTLY, A CLAMP PRECEDING THE APPARATUS TO MOMENTARILY CLAMP THE WEB WHILE IT IS MOVING SLOWLY, AND MEANS INCLUDING AN ELECTRIC EYE WEB SCANNER TO TRIGGER THE CLAMP, SAID CLAMP BEING ELECTROMAGNETICALLY ACTUATED, SAID SCANNER SERVING TO TRIGGER SAID CLAMP SLIGHTLY AHEAD TO ALLOW TIME FOR THE CLAMP TO OPERATE, AND MEANS DRIVEN BY THE APPARATUS AT A SPEED PROPORTIONAL TO THE WEB SPEED TO VARY THE TRIGGER TIMING LEAD IN ORDER TO COMPENSATE FOR ANY CHARGE IN AVERAGE WEB SPEED.
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) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |