US3103910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leak testing apparatus
Assignee: Individual
•
Filing: 1961-10-30
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Granted: 1963-09-17
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Expires: 1981-10-30
Abstract
No abstract record available.
Inventors
- 👤 Richard S Smith
- 👤 Vernon P Speiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:06
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/04; G01M3/06; G01M3/08; G01M3/10; F; F16; F16L; F16L2101/00; F16L2101/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
216 words
APPARATUS FOR DETECTING LEAKS IN A CLOSED SYSTEM COMPRISING, A PRESSURE TANK, A BODY, A TRANSPARENT BOWL PARTIALLY FILLED WITH LIQUID ATTACHED TO ONE SIDE OF SAID BODY MEMBER, SAID BODY MEMBER HAVING BORES EXTENDING INWARDLY FROM OPPOSITE SIDES THEREOF AND THREADED OPENINGS INTERSECTING SAID BORES AND LEADING INTO SAID BOWL, TUBES ENGAGING IN SAID THREADED OPENINGS, ONE OF SAID TUBES BEING LONGER THAN THE OTHER AND OF A LENGTH SO THAT ITS FREE END WILL BE SUBMERGED IN SAID LIQUID WHEN THE APPARATUS IS IN POSITION FOR USE, A TUBULAR LINE LEADING FROM ONE OF SAID INWARDLY EXTENDING BORES TO SAID PRESSURE TANK, A GAUGE CONNECTED TO SAID TUBULAR LINE BETWEEN SAID BORE AND SAID TANK, A TUBULAR LINE ATTACHED TO SAID OTHER INWARDLY EXTENDING BORE, MEANS ON ITS FREE END FOR ATTACHMENT TO SAID CLOSED SYSTEM, MEANS IN SAID BODY MEMBER LEADING TO SAID BOWL FOR SUPPLYING AIR TO SAID PRESSURE TANK TO EQUALIZE THE PRESSURE IN SAID TANK WITH SAID CLOSED SYSTEM, MEANS FOR HOLDING SAID BOWL IN UPRIGHT POSITION WITH THE FREE END OF ONE OF THE TUBES THEREIN SUBMERGED IN SAID LIQUID, AND MEANS FOR SUPPORTING SAID APPARATUS IN ANOTHER POSITION WITH SAID END OF THE LONGER TUBE NOT SUBMERGED FOR SUPPLYING AIR TO SAID APPARATUS WITHOUT PASSAGE THROUGH SAID LIQUID.
Claim 2
Dependent Claim
216 words
APPARATUS FOR DETECTING LEAKS IN A CLOSED SYSTEM COMPRISING, A PRESSURE TANK, A BODY, A TRANSPARENT BOWL PARTIALLY FILLED WITH LIQUID ATTACHED TO ONE SIDE OF SAID BODY MEMBER, SAID BODY MEMBER HAVING BORES EXTENDING INWARDLY FROM OPPOSITE SIDES THEREOF AND THREADED OPENINGS INTERSECTING SAID BORES AND LEADING INTO SAID BOWL, TUBES ENGAGING IN SAID THREADED OPENINGS, ONE OF SAID TUBES BEING LONGER THAN THE OTHER AND OF A LENGTH SO THAT ITS FREE END WILL BE SUBMERGED IN SAID LIQUID WHEN THE APPARATUS IS IN POSITION FOR USE, A TUBULAR LINE LEADING FROM ONE OF SAID INWARDLY EXTENDING BORES TO SAID PRESSURE TANK, A GAUGE CONNECTED TO SAID TUBULAR LINE BETWEEN SAID BORE AND SAID TANK, A TUBULAR LINE ATTACHED TO SAID OTHER INWARDLY EXTENDING BORE, MEANS ON ITS FREE END FOR ATTACHMENT TO SAID CLOSED SYSTEM, MEANS IN SAID BODY MEMBER LEADING TO SAID BOWL FOR SUPPLYING AIR TO SAID PRESSURE TANK TO EQUALIZE THE PRESSURE IN SAID TANK WITH SAID CLOSED SYSTEM, MEANS FOR HOLDING SAID BOWL IN UPRIGHT POSITION WITH THE FREE END OF ONE OF THE TUBES THEREIN SUBMERGED IN SAID LIQUID, AND MEANS FOR SUPPORTING SAID APPARATUS IN ANOTHER POSITION WITH SAID END OF THE LONGER TUBE NOT SUBMERGED FOR SUPPLYING AIR TO SAID APPARATUS WITHOUT PASSAGE THROUGH SAID LIQUID.
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) | 1966-09-16 | 1967-03-18 | 1967-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-16 | 1971-03-18 | 1971-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-16 | 1975-03-18 | 1975-09-17 | $7700.00 | Window Closed / Lapsed |