Patent US3091256A successfully refreshed from Google Patents.
US3091256A
Expired / Lapsed
US
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Chuck control circuit
Assignee: LOGANSPORT MACHINE CO Inc
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Filing: 1960-09-06
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Granted: 1963-05-28
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Expires: 1980-09-06
Abstract
No abstract record available.
Inventors
- 👤 Robert E Becker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:08
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/06; F16K11/065; F16K11/07; B; B23; B23B; B23B31/00; B23B31/02; B23B31/24; B23B31/30; B23B31/302; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87265; Y10T137/87322; Y10T137/8733; Y10T137/877; Y10T137/87708; Y10T279/00; Y10T279/12; Y10T279/1208
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
A FLUID CONTROL SYSTEM FOR USE WITH A CHUCKING CYLINDER OR THE LIKE INCLUDING A SOURCE OF FLUID PRESSURE AND A VALVING SYSTEM CONNECTED THERETO, SAID VALVING SYSTEM INCLUDING A FIRST VALVE AND A SECOND VALVE, EACH HAVING A RECIPROCAL VALVE MEMBER MOVABLE BETWEEN A FIRST AND SECOND STATION, EACH OF SAID VALVES BEING CONNECTED TO SAID SOURCE OF FLUID PRESSURE, A FIRST FLUID CONDUIT CONNECTED TO SAID FIRST VALVE AND A SECOND FLUID CONDUIT CONNECTED TO SAID SECOND VALVE, SAID VALVE MEMBERS BEING MOVABLE BETWEEN A FIRST POSITION IN WHICH SAID FIRST FLUID CONDUIT IS CONNECTED TO EXHAUST AND SAID SECOND FLUID CONDUIT IS CONNECTED TO THE SOURCE OF FLUID PRESSURE, AND A SECOND POSITION IN WHICH THE PRESSURE SUPPLIED TO SAID SECOND FLUID CONDUIT IS REDUCED FROM THE PRESSURE SUPPLIED WHEN THE VALVE MEMBERS ARE IN THE FIRST POSITION, SAID VALVE MEMBERS BEING MOVABLE TO A THIRD POSITION IN WHICH SAID FIRST FLUID CONDUIT IS CONNECTED TO SAID SOURCE OF FLUID PRESSURE AND SAID SECOND FLUID CONDUIT IS CONNECTED TO EXHAUST.
Claim 2
Dependent Claim
173 words
A FLUID CONTROL SYSTEM FOR USE WITH A CHUCKING CYLINDER OR THE LIKE INCLUDING A SOURCE OF FLUID PRESSURE AND A VALVING SYSTEM CONNECTED THERETO, SAID VALVING SYSTEM INCLUDING A FIRST VALVE AND A SECOND VALVE, EACH HAVING A RECIPROCAL VALVE MEMBER MOVABLE BETWEEN A FIRST AND SECOND STATION, EACH OF SAID VALVES BEING CONNECTED TO SAID SOURCE OF FLUID PRESSURE, A FIRST FLUID CONDUIT CONNECTED TO SAID FIRST VALVE AND A SECOND FLUID CONDUIT CONNECTED TO SAID SECOND VALVE, SAID VALVE MEMBERS BEING MOVABLE BETWEEN A FIRST POSITION IN WHICH SAID FIRST FLUID CONDUIT IS CONNECTED TO EXHAUST AND SAID SECOND FLUID CONDUIT IS CONNECTED TO THE SOURCE OF FLUID PRESSURE, AND A SECOND POSITION IN WHICH THE PRESSURE SUPPLIED TO SAID SECOND FLUID CONDUIT IS REDUCED FROM THE PRESSURE SUPPLIED WHEN THE VALVE MEMBERS ARE IN THE FIRST POSITION, SAID VALVE MEMBERS BEING MOVABLE TO A THIRD POSITION IN WHICH SAID FIRST FLUID CONDUIT IS CONNECTED TO SAID SOURCE OF FLUID PRESSURE AND SAID SECOND FLUID CONDUIT IS CONNECTED TO EXHAUST.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-27 | 1966-11-26 | 1967-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-27 | 1970-11-26 | 1971-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-27 | 1974-11-26 | 1975-05-28 | $7700.00 | Window Closed / Lapsed |