Patent US4274788A successfully refreshed from Google Patents.
Patent US3115316A successfully refreshed from Google Patents.
US3115316A
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Hydraulic wire rod tensioning means
Assignee: American Pipe and Construction Co
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Filing: 1961-08-07
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Granted: 1963-12-24
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Expires: 1981-08-07
Abstract
No abstract record available.
Inventors
- 👤 Silliman John Calvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:56
CPC Classifications
B; B21; B21F; B21F17/00; B28; B28B; B28B21/00; B28B21/56; B28B21/60; B28B21/62; B28B21/64; B65; B65H; B65H59/00; B65H59/10; B65H59/16; B65H59/40; B65H2555/00; B65H2555/10; B65H2555/12; B65H2555/20; B65H2555/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
IN APPARATUS FOR TENSIONING A MOVING WIRE ROD, A SUPPORT, A BASE PLATE MOUNTED ON SAID SUPPORT, A HOUSING STRUCTURE ROTATABLY SUPPORTED ON SAID BASE PLATE, SAID HOUSING STRUCTURE BEING CONSTRUCTED AND ARRANGED TO PROVIDE A RESERVOIR CHAMBER, MEANS CONNECTED BETWEEN SAID HOUSING STRUCTURE AND SAID SUPPORT FOR YIELDABLY RESTRAINING SAID HOUSING STRUCTURE AGAINST ROTATION AND FOR GIVING A SENSIBLE INDICATION OF THE TORQUE EXERTED BY THE HOUSING STRUCTURE, A SHEAVE ROTATABLY MOUNTED ON SAID HOUSING STRUCTURE, A PUMP MOUNTED IN SAID HOUSING STRUCTURE, A DRIVING CONNECTION BETWEEN SAID PUMP AND SAID SHEAVE, INTAKE CONDUIT MEANS LEADING FROM SAID RESERVOIR CHAMBER TO SAID PUMP, OUTLET CONDUIT MEANS LEADING FROM SAID PUMP TO SAID RESERVOIR CHAMBER, AND MEANS FOR ADJUSTABLY RESTRICTING FLOW OF FLUID THROUGH SAID OUTLET CONDUIT MEANS.
Claim 2
Dependent Claim
128 words
IN APPARATUS FOR TENSIONING A MOVING WIRE ROD, A SUPPORT, A BASE PLATE MOUNTED ON SAID SUPPORT, A HOUSING STRUCTURE ROTATABLY SUPPORTED ON SAID BASE PLATE, SAID HOUSING STRUCTURE BEING CONSTRUCTED AND ARRANGED TO PROVIDE A RESERVOIR CHAMBER, MEANS CONNECTED BETWEEN SAID HOUSING STRUCTURE AND SAID SUPPORT FOR YIELDABLY RESTRAINING SAID HOUSING STRUCTURE AGAINST ROTATION AND FOR GIVING A SENSIBLE INDICATION OF THE TORQUE EXERTED BY THE HOUSING STRUCTURE, A SHEAVE ROTATABLY MOUNTED ON SAID HOUSING STRUCTURE, A PUMP MOUNTED IN SAID HOUSING STRUCTURE, A DRIVING CONNECTION BETWEEN SAID PUMP AND SAID SHEAVE, INTAKE CONDUIT MEANS LEADING FROM SAID RESERVOIR CHAMBER TO SAID PUMP, OUTLET CONDUIT MEANS LEADING FROM SAID PUMP TO SAID RESERVOIR CHAMBER, AND MEANS FOR ADJUSTABLY RESTRICTING FLOW OF FLUID THROUGH SAID OUTLET CONDUIT MEANS.
References Cited (Backward Citations)
US2251205A
Cited
US2947494A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-23 | 1967-06-24 | 1967-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-23 | 1971-06-24 | 1971-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-23 | 1975-06-24 | 1975-12-24 | $7700.00 | Window Closed / Lapsed |