US3304546A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leak detector for pressurized cable
Assignee: Puregas Equipment Corp
•
Filing: 1964-11-16
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Granted: 1967-02-14
•
Expires: 1984-11-16
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Kern
- 👤 Walter A Siebein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:39
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/04; G01M3/16; G01M3/18; G01M3/181; G01F; G01F1/00; G01F1/05; G01F1/20; G01F1/22; G01F1/34; G01F1/36; G01F1/37; G01M3/26; G01M3/28; G01M3/2807; G01M3/2838; G01P; G01P13/00; G01P13/0006; G01P13/0066
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
IN A FLUID FLOW SYSTEM HAVING AN ORIFICE COUPLED BETWEEN THE UPSTREAM AND DOWNSTREAM SIDES OF THE SYSTEM, A LEAK DETECTING APPARATUS COMPRISING A DIFFERENTIAL PRESSURE GAGE COUPLED ACROSS THE UPSTREAM AND DOWNSTREAM SIDES OF SAID ORIFICE, LEAK-SIMULATING BLEED-OFF MEANS ON THE DOWNSTREAM SIDE FOR ADJUSTABLY INDEXING SAID DIFFERENTIAL PRESSURE GAGE TO SENSE A DIFFERENTIAL PRESSURE CORRESPONDING TO AN UNDESIRABLE LEAK ON SAID DOWNSTREAM SIDE, AND SIGNAL MEANS ACTUATED BY SAID DIFFERENTIAL PRESSURE GAGE FOR INDICATING WHEN AN UNDESIRABLE LEAK RATE IS SENSED BY SAID INDEXED DIFFERENTIAL PRESSURE GAGE.
Claim 2
Dependent Claim
89 words
IN A FLUID FLOW SYSTEM HAVING AN ORIFICE COUPLED BETWEEN THE UPSTREAM AND DOWNSTREAM SIDES OF THE SYSTEM, A LEAK DETECTING APPARATUS COMPRISING A DIFFERENTIAL PRESSURE GAGE COUPLED ACROSS THE UPSTREAM AND DOWNSTREAM SIDES OF SAID ORIFICE, LEAK-SIMULATING BLEED-OFF MEANS ON THE DOWNSTREAM SIDE FOR ADJUSTABLY INDEXING SAID DIFFERENTIAL PRESSURE GAGE TO SENSE A DIFFERENTIAL PRESSURE CORRESPONDING TO AN UNDESIRABLE LEAK ON SAID DOWNSTREAM SIDE, AND SIGNAL MEANS ACTUATED BY SAID DIFFERENTIAL PRESSURE GAGE FOR INDICATING WHEN AN UNDESIRABLE LEAK RATE IS SENSED BY SAID INDEXED DIFFERENTIAL PRESSURE GAGE.
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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |