Patent US3196677A successfully refreshed from Google Patents.
US3196677A
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US
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Cyclic pressure loading system
Assignee: Individual
•
Filing: 1962-11-05
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Granted: 1965-07-27
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Expires: 1982-11-05
Abstract
No abstract record available.
Inventors
- 👤 Paul P Day
- 👤 Ralph B Allnutt
- 👤 Alexander B Stavovy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:48
CPC Classifications
G; G01; G01N; G01N3/00; G01N3/32; G01N3/36; G01N3/02; G01N3/06; G01N3/066; G01N2203/00; G01N2203/003; G01N2203/0042
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
73 words
IN A DYNAMIC PRESSURE TESTING SYSTEM WHEREIN A MODEL LOCATED IN AN ENVIRONMENT TEST TANK IS SUBJECTED TO VARYING PRESSURE LOADING FROM A FLUID SOURCE, APPARATUS FOR MAINTAINING THE TANK PRESSURE AT A PREDETERMINED ESSENTIALLY CONSTANT VALUE DESPITE PRESSURE-INDUCED VOLUME VARIATIONS OF SAID MODEL RESULTING IN TRANSIENT PRESSURES IN THE TANK, COMPRISING: MEANS COUPLED TO THE TANK FOR CONTROLLING THE PRESSURE THEREOF; SENSING MEANS FOR DIRECTLY SENSING THE PRESSURE OF THE TANK; AND
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) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |