US3129726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Test plug for fluid systems
Assignee: Individual
•
Filing: 1962-04-06
•
Granted: 1964-04-21
•
Expires: 1982-04-06
Abstract
No abstract record available.
Inventors
- 👤 John F Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:43
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/10; F16L55/12; F16L55/128; F16L55/132; F16L55/134; F16K; F16K7/00; F16K7/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A CLOSURE PLUG FOR THE PRESSURE TESTING OF FLUID SYSTEMS, COMPRISING A CYLINDRICAL PLUG WITH A REDUCED NECK ON ONE END, AND HAVING AN AXIAL BORE, A NIPPLE WITH A PNEUMATIC VALVE THREADED IN SAID BORE ON THE END OF THE HEAD OPPOSITE SAID NECK, A TUBULAR BAG MADE OF RUBBERY MATERIAL, OF UNIFORM DIAMETER, AND HAVING A ROUNDED, CLOSED BOTTOM, AND AN OPEN END HAVING SAID UNIFORM DIAMETER RECEIVED ON SAID NECK, A METAL STRAP SURROUNDING SAID BAG IN THE REGION OF SAID NECK, AND MEANS SECURING SAID STRAP IN RING FORM IN COMPRESSING RELATION TO SAID BAG.
Claim 2
Dependent Claim
99 words
A CLOSURE PLUG FOR THE PRESSURE TESTING OF FLUID SYSTEMS, COMPRISING A CYLINDRICAL PLUG WITH A REDUCED NECK ON ONE END, AND HAVING AN AXIAL BORE, A NIPPLE WITH A PNEUMATIC VALVE THREADED IN SAID BORE ON THE END OF THE HEAD OPPOSITE SAID NECK, A TUBULAR BAG MADE OF RUBBERY MATERIAL, OF UNIFORM DIAMETER, AND HAVING A ROUNDED, CLOSED BOTTOM, AND AN OPEN END HAVING SAID UNIFORM DIAMETER RECEIVED ON SAID NECK, A METAL STRAP SURROUNDING SAID BAG IN THE REGION OF SAID NECK, AND MEANS SECURING SAID STRAP IN RING FORM IN COMPRESSING RELATION TO SAID BAG.
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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) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |