US3075679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web feeding device
Assignee: Unisys Corp
•
Filing: 1960-08-15
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Granted: 1963-01-29
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Expires: 1980-08-15
Abstract
No abstract record available.
Inventors
- 👤 Walter G Wadey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:54
CPC Classifications
B; B65; B65H; B65H20/00; B65H20/12; F; F15; F15C; F15C1/00; F15C1/001; F16; F16H; F16H7/00; F16H7/08; F16H7/0827; G; G06; G06K; G06K13/00; G06K13/18; G06K13/20; G06K13/22; G11; G11B; G11B15/00; G11B15/18; G11B15/38; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2065; Y10T137/2071
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A WEB FEEDING DEVICE COMPRISING: MEANS FOR PRODUCING A FLUID POWER STREAM; WEB FEEDING MEANS HAVING A FLUID PERMEABLE WEB DRIVING SURFACE; AND MEANS FOR VARYING THE PRESSURE AT SAID WEB DRIVING SURFACE OVER A PREDETERMINED RANGE OF VALUES TO THEREBY DRIVE SAID WEB AT ANY ONE OF SEVERAL DESIRED SPEEDS BY VARYING THE FRICTIONAL DRIVING ENGAGEMENT BETWEEN SAID WEB AND SAID SURFACE, SAID PRESSURE VARYING MEANS COMPRISING MEANS FOR PRODUCING A FLUID STREAM HAVING A MOMENTUM PROPORTIONAL TO THE DESIRED WEB SPEED, MEANS FOR APPLYING SAID FLUID STREAM TO SAID POWER STREAM TO SELECTIVELY DEFLECT SAID POWER STREAM, AND FLUID CONVEYING MEANS FOR RECEIVING AND CONVEYING TO SAID PERMEABLE DRIVING SURFACE A PORTION OF SAID POWER STREAM DEPENDENT UPON THE AMOUNT OF DEFLECTION OF SAID POWER STREAM WITH RESPECT TO SAID RECEIVING MEANS BY SAID FLUID STREAM.
Claim 2
Dependent Claim
138 words
A WEB FEEDING DEVICE COMPRISING: MEANS FOR PRODUCING A FLUID POWER STREAM; WEB FEEDING MEANS HAVING A FLUID PERMEABLE WEB DRIVING SURFACE; AND MEANS FOR VARYING THE PRESSURE AT SAID WEB DRIVING SURFACE OVER A PREDETERMINED RANGE OF VALUES TO THEREBY DRIVE SAID WEB AT ANY ONE OF SEVERAL DESIRED SPEEDS BY VARYING THE FRICTIONAL DRIVING ENGAGEMENT BETWEEN SAID WEB AND SAID SURFACE, SAID PRESSURE VARYING MEANS COMPRISING MEANS FOR PRODUCING A FLUID STREAM HAVING A MOMENTUM PROPORTIONAL TO THE DESIRED WEB SPEED, MEANS FOR APPLYING SAID FLUID STREAM TO SAID POWER STREAM TO SELECTIVELY DEFLECT SAID POWER STREAM, AND FLUID CONVEYING MEANS FOR RECEIVING AND CONVEYING TO SAID PERMEABLE DRIVING SURFACE A PORTION OF SAID POWER STREAM DEPENDENT UPON THE AMOUNT OF DEFLECTION OF SAID POWER STREAM WITH RESPECT TO SAID RECEIVING MEANS BY SAID FLUID STREAM.
References Cited (Backward Citations)
US2727525A
Cited
US2866637A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |