US3085764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential wind-up apparatus
Assignee: Akzo Nobel UK PLC
•
Filing: 1959-11-30
•
Granted: 1963-04-16
•
Expires: 1979-11-30
Abstract
No abstract record available.
Inventors
- 👤 Harold A Haley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:23
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/04; B65H23/18; B65H23/195; B65H23/1955
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
WINDING APPARATUS COMPRISING A CORE ON WHICH SHEET MATERIAL IS WOUND INTO A ROLL, MEANS FOR FEEDING SHEET MATERIAL TOWARD SAID CORE AT A CONSTANT LINEAR SPEED, A DIFFERENTIAL COMPRISING A POWER INPUT AND TWO OUTPUTS, MEANS FOR DRIVING SAID INPUT AT A CONSTANT SPEED, MEANS DRIVINGLY CONNECTING ONE OF SAID OUTPUTS TO SAID CORE, A POSITIVE DISPLACEMENT PUMP MEANS OPERATIVELY CONNECTED TO THE OTHER OF SAID OUTPUTS, MEANS FOR SUPPLYING A LIQUID TO SAID PUMP MEANS, A CONDUIT CONNECTED TO SAID PUMP MEANS FOR CONVEYING LIQUID FROM SAID PUMP MEANS, A CONSTANT PRESSURE VALVE IN SAID CONDUIT, AND AN ORIFICE IN SAID CONDUIT BETWEEN SAID CONSTANT PRESSURE VALVE AND SAID PUMP MEANS, SAID ORIFICE BEING EFFECTIVE TO CONTINUOUSLY INCREASE THE BACK PRESSURE ON SAID PUMP MEANS DURING THE ENTIRE WINDING OPERATION.
Claim 2
Dependent Claim
132 words
WINDING APPARATUS COMPRISING A CORE ON WHICH SHEET MATERIAL IS WOUND INTO A ROLL, MEANS FOR FEEDING SHEET MATERIAL TOWARD SAID CORE AT A CONSTANT LINEAR SPEED, A DIFFERENTIAL COMPRISING A POWER INPUT AND TWO OUTPUTS, MEANS FOR DRIVING SAID INPUT AT A CONSTANT SPEED, MEANS DRIVINGLY CONNECTING ONE OF SAID OUTPUTS TO SAID CORE, A POSITIVE DISPLACEMENT PUMP MEANS OPERATIVELY CONNECTED TO THE OTHER OF SAID OUTPUTS, MEANS FOR SUPPLYING A LIQUID TO SAID PUMP MEANS, A CONDUIT CONNECTED TO SAID PUMP MEANS FOR CONVEYING LIQUID FROM SAID PUMP MEANS, A CONSTANT PRESSURE VALVE IN SAID CONDUIT, AND AN ORIFICE IN SAID CONDUIT BETWEEN SAID CONSTANT PRESSURE VALVE AND SAID PUMP MEANS, SAID ORIFICE BEING EFFECTIVE TO CONTINUOUSLY INCREASE THE BACK PRESSURE ON SAID PUMP MEANS DURING THE ENTIRE WINDING OPERATION.
References Cited (Backward Citations)
CA536882A
Cited
US2064295A
Cited
US2392226A
Cited
US2599795A
Cited
US2638285A
Cited
US2835454A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |