US3131541A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for relieving buried conduits of excessive pressure
Assignee: Individual
•
Filing: 1960-08-22
•
Granted: 1964-05-05
•
Expires: 1980-08-22
Abstract
No abstract record available.
Inventors
- 👤 James E Guthrie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:05
CPC Classifications
E; E01; E01F; E01F5/00; E01F5/005; F; F16; F16L; F16L1/00; F16L1/024; F16L1/06; F16L1/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
IN COMBINATION WITH A CONDUIT BURIED IN FILL MATERIAL, A DEVICE FOR PROTECTING THE CONDUIT FROM EXCESSIVE FORCES FROM THE FILL MATERIAL COMPRISING A PROTECTIVE YOKE DISPOSED OVER THE CONDUIT EMBRACING AT LEAST THE TOP AND SIDES OF THE UPPER PORTION OF THE CONDUIT AND EXTENDING ALONG THE FULL LENGTH OF THE BURIED CONDUIT TO BE PROTECTED, SAID PROTECTIVE YOKE BEING A SIMPLE UNITARY BODY OF MATERIAL WHICH CAN BE DISPLACED UNDER PRESSURE EXERTED BY THE OVERLYING FILL MATERIAL WHEN THE CONDUIT IS BURIED BY FLOWING TO AN AREA OF LESS PRESSURE TO ALLOW ARCHING OF THE FILL MATERIAL OVER THE CONDUIT SO THAT DISPLACEMENT OF THE PROTECTIVE MATERIAL WILL BE RELIED UPON TO PREVENT EXCESSIVE FORCES ON THE CONDUIT CREATED BY SETTLING OF THE FILL MATERIAL, IN WHICH THE YOKE IS COMPOSED OF A FLEXIBLE DIAPHRAGM HOUSING ENCLOSING FLOWABLE MATERIAL.
Claim 2
Dependent Claim
141 words
IN COMBINATION WITH A CONDUIT BURIED IN FILL MATERIAL, A DEVICE FOR PROTECTING THE CONDUIT FROM EXCESSIVE FORCES FROM THE FILL MATERIAL COMPRISING A PROTECTIVE YOKE DISPOSED OVER THE CONDUIT EMBRACING AT LEAST THE TOP AND SIDES OF THE UPPER PORTION OF THE CONDUIT AND EXTENDING ALONG THE FULL LENGTH OF THE BURIED CONDUIT TO BE PROTECTED, SAID PROTECTIVE YOKE BEING A SIMPLE UNITARY BODY OF MATERIAL WHICH CAN BE DISPLACED UNDER PRESSURE EXERTED BY THE OVERLYING FILL MATERIAL WHEN THE CONDUIT IS BURIED BY FLOWING TO AN AREA OF LESS PRESSURE TO ALLOW ARCHING OF THE FILL MATERIAL OVER THE CONDUIT SO THAT DISPLACEMENT OF THE PROTECTIVE MATERIAL WILL BE RELIED UPON TO PREVENT EXCESSIVE FORCES ON THE CONDUIT CREATED BY SETTLING OF THE FILL MATERIAL, IN WHICH THE YOKE IS COMPOSED OF A FLEXIBLE DIAPHRAGM HOUSING ENCLOSING FLOWABLE MATERIAL.
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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) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |