US3100986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leakage indicator
Assignee: STARR KAP ENGINEERING Co
•
Filing: 1960-07-08
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Granted: 1963-08-20
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Expires: 1980-07-08
Abstract
No abstract record available.
Inventors
- 👤 Starr Louis
- 👤 Allan L Kaplan
- 👤 Myron L Greenberg
- 👤 Lewis J Cox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:35
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/26; G01M3/32; G01M3/3236; G01M3/3263; F; F16; F16L; F16L2101/00; F16L2101/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN A LEAKAGE DETECTION SYSTEM, A FLUID PRESSURE DIFFERENTIAL INDICATOR HAVING TWO SIDES, A SOURCE OF PRESSURIZED FLUID, CONDUIT MEANS CONNECTED TO SUPPLY PRESSURIZED FLUID FROM SAID SOURCE TO EACH SIDE OF SAID INDICATOR, A CONDUIT CONNECTED TO ONE SIDE OF SAID INDICATOR TO ADMIT PRESSURIZED FLUID TO WORK TO BE TESTED, CHECK VALVE MEANS IN SAID CONDUIT MEANS PREVENTING REVERSE FLOW FROM EACH SIDE OF SAID INDICATOR AND FROM THE WORK BACK TO SAID MEANS TO SAID SOURCE, AND A SEPARATE VALVED CONDUIT CONNECTED DIRECTLY ACROSS THE TWO SIDES OF SAID DIFFERENTIAL INDICATOR.
Claim 2
Dependent Claim
94 words
IN A LEAKAGE DETECTION SYSTEM, A FLUID PRESSURE DIFFERENTIAL INDICATOR HAVING TWO SIDES, A SOURCE OF PRESSURIZED FLUID, CONDUIT MEANS CONNECTED TO SUPPLY PRESSURIZED FLUID FROM SAID SOURCE TO EACH SIDE OF SAID INDICATOR, A CONDUIT CONNECTED TO ONE SIDE OF SAID INDICATOR TO ADMIT PRESSURIZED FLUID TO WORK TO BE TESTED, CHECK VALVE MEANS IN SAID CONDUIT MEANS PREVENTING REVERSE FLOW FROM EACH SIDE OF SAID INDICATOR AND FROM THE WORK BACK TO SAID MEANS TO SAID SOURCE, AND A SEPARATE VALVED CONDUIT CONNECTED DIRECTLY ACROSS THE TWO SIDES OF SAID DIFFERENTIAL INDICATOR.
References Cited (Backward Citations)
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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) | 1966-08-19 | 1967-02-18 | 1967-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-19 | 1971-02-18 | 1971-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-19 | 1975-02-18 | 1975-08-20 | $7700.00 | Window Closed / Lapsed |