US3351522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Approach flow system for papermaking machine
Assignee: TI Gotham Inc
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Filing: 1964-08-03
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Granted: 1967-11-07
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Expires: 1984-08-03
Abstract
No abstract record available.
Inventors
- 👤 Lopas Kasimir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:30
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/02; D21F1/024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A FLOW SYSTEM FOR DELIVERING A PAPER STOCK TO PAPERFORMING APPARATUS, THE FLOW SYSTEM COMPRISING A SUPPLYFLOW CHANNEL FOR TRANSPORTING THE PAPER STOCK, A RECIRCULATING LOOP, SAID RECIRCULATING LOOP AND SAID SUPPLY-FLOW CHANNEL HAVING A FLUID-CONDUCTING CONNECTION WITH EACH OTHER, A DELIVERY-FLOW CHANNEL, SAID RECIRCULATING LOOP AND SAID DELIVERY-FLOW CHANNEL HAVING A FLUID-CONDUCTING CONNECTION WITH EACH OTHER, A SCREW PROPELLER COUPLED WITH SAID RECIRCULATING LOOP FOR VARYING THE AMOUNT OF THE STOCK WHICH IS RECIRCULATED, AND FLOW-STABILIZING MEANS MOUNTED IN SAID LOOP FOR PREVENTING THE ACQUISITION BY SAID STOCK OF A HELICAL MOTION DUE TO THE ACTION OF SAID PROPELLER.
Claim 2
Dependent Claim
85 words
IN APPARATUS FOR FACILITATING TURNING OF A PAPER STOCK FROM FLOW IN ONE DIRECTION AT SUBSTANTIALLY UNIFORM VELOCITY ACROSS A CROSS SECTION OF SAID FLOW IN SAID ONE DIRECTION TO FLOW IN ANOTHER DIRECTION AT SUBSTANTIALLY UNIFORM VELOCITY ACROSS A CROSS SECTION OF SAID FLOW IN SAID OTHER DIRECTION, THE IMPROVEMENT COMPRISING A PLURALITY OF VANES MOUNTED IN PARALLEL RELATION, EACH VANE (A) HAVING A TAIL PORTION TAPERING TO A SHARP TERMINUS AND A NOSE PORTION, (B) BEING (1) MOUNTED WITH SAID NOSE PORTION UPSTREAM
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) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |