US3203662A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sleeve valve
Assignee: Amcor Flexibles North America Inc
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Filing: 1963-07-16
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Granted: 1965-08-31
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Expires: 1983-07-16
Abstract
No abstract record available.
Inventors
- 👤 Erwin M Lau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:05
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/02; F16K7/04; F16K7/07; F16K7/075
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A SLEEVE VALE COMPRISING A SUBSTANTIALLY CYLINDRICAL CASING, A RUBBER SLEEVE DISPOSED INTERIORLY OF SAID CASING AND OF LENGTH GREATER THAN THE LENGTH OF SAID CASING, THE ENDS OF SAID SLEEVE BEING FOLDED BACK AND OVERLAPPING THE CYLINDRICAL PORTIONS OF THE ENDS OF SAID CASING, ANNULAR END PLATES ENGAGING SAID SLEEVE AT THE FOLD POINTS WHERE IT IS FOLDED BACK OVER THE END PORTIONS OF SAID CASING, MEANS DRAWING SAID END PLATES AGAINST THE CASING ENDS TO PROVIDE A GAS-TIGHT SEAL BETWEEN SAID CASING ENDS AND SAID SLEEVE, INLET MEANS FOR INTRODUCING A FLUID BETWEEN SAID SLEEVE AND SAID CASING TO EXTEND SAID SLEEVE, AND STOP MEANS REACTING DIRECTLY ON SAID CASING FOR LIMITING THE PRESSURE EXERTED BY SAID AND FOLD POINTS, WHEREBY A COMPRESSIVE FORCE APPLIED TO SAID END PLATES IN AN AXIAL DIRECTION WILL BE TRANSMITTED DIRECTLY FROM SAID END PLATES TO END CYLINDRICAL CASING WITHOUT AFFECTING SAID FOLD POINTS.
Claim 2
Dependent Claim
152 words
A SLEEVE VALE COMPRISING A SUBSTANTIALLY CYLINDRICAL CASING, A RUBBER SLEEVE DISPOSED INTERIORLY OF SAID CASING AND OF LENGTH GREATER THAN THE LENGTH OF SAID CASING, THE ENDS OF SAID SLEEVE BEING FOLDED BACK AND OVERLAPPING THE CYLINDRICAL PORTIONS OF THE ENDS OF SAID CASING, ANNULAR END PLATES ENGAGING SAID SLEEVE AT THE FOLD POINTS WHERE IT IS FOLDED BACK OVER THE END PORTIONS OF SAID CASING, MEANS DRAWING SAID END PLATES AGAINST THE CASING ENDS TO PROVIDE A GAS-TIGHT SEAL BETWEEN SAID CASING ENDS AND SAID SLEEVE, INLET MEANS FOR INTRODUCING A FLUID BETWEEN SAID SLEEVE AND SAID CASING TO EXTEND SAID SLEEVE, AND STOP MEANS REACTING DIRECTLY ON SAID CASING FOR LIMITING THE PRESSURE EXERTED BY SAID AND FOLD POINTS, WHEREBY A COMPRESSIVE FORCE APPLIED TO SAID END PLATES IN AN AXIAL DIRECTION WILL BE TRANSMITTED DIRECTLY FROM SAID END PLATES TO END CYLINDRICAL CASING WITHOUT AFFECTING SAID FOLD POINTS.
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) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |