US3201941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Assembly of turbomachines
Assignee: La Fleur Corp
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Filing: 1963-04-18
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Granted: 1965-08-24
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Expires: 1983-04-18
Abstract
No abstract record available.
Inventors
- 👤 Fleur James K La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:54
CPC Classifications
F; F25; F25B; F25B9/00; F25B9/06; F01; F01D; F01D13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
HYDRAULIC SURGE TANK, COMPRISING A CHAMBER COMMUNICATING WITH A HYDRAULIC LINE CARRYING A FLUID UNDER PRESSURE, SAID LINE BEING SUBJECT TO SUDDEN FLUID SURGES OWING TO QUICK INCREASE AND DECREASE OF SAID PRESSURE, A COVER FOR CLOSING SAID CHAMBER IN A FLUID-TIGHT MANNER, SAID CHAMBER BEING PARTLY FILLED WITH SAID FLUID, AND A TWOWAY RELIEF AIR VALVE INS AID COVER, SAID VALVE BEING CONTINUALLY OPEN UNDER NORMAL CIRCUMSTANCES OF USE SO AS TO COMMUNICATE WITH THE SPACE WITHIN SAID CHAMBER AND WITH THE ATMOSPHERE, AND BEING SET TO A PREDERMINED PRESSURE LOWER THAN THAT TO WHICH SAID LINE MAY BE SUBJECTED WHEREBY SAID SURGES ARE EFFECTIVELY DAMPENED BY A PNEUMATIC BRAKING EFFECT RESULTING FROM A CONTROLLED AMOUNT OF AIR WHICH PASSES OUTWARD AND INWARD, RESPECTIVELY, THROUGH SAID VALVE DURING THE USE OF THE SURGE TANK, DEPENDING ON THE DIRECTIN AND AMOUNT OF SAID SURGES.
Claim 2
Dependent Claim
144 words
HYDRAULIC SURGE TANK, COMPRISING A CHAMBER COMMUNICATING WITH A HYDRAULIC LINE CARRYING A FLUID UNDER PRESSURE, SAID LINE BEING SUBJECT TO SUDDEN FLUID SURGES OWING TO QUICK INCREASE AND DECREASE OF SAID PRESSURE, A COVER FOR CLOSING SAID CHAMBER IN A FLUID-TIGHT MANNER, SAID CHAMBER BEING PARTLY FILLED WITH SAID FLUID, AND A TWOWAY RELIEF AIR VALVE INS AID COVER, SAID VALVE BEING CONTINUALLY OPEN UNDER NORMAL CIRCUMSTANCES OF USE SO AS TO COMMUNICATE WITH THE SPACE WITHIN SAID CHAMBER AND WITH THE ATMOSPHERE, AND BEING SET TO A PREDERMINED PRESSURE LOWER THAN THAT TO WHICH SAID LINE MAY BE SUBJECTED WHEREBY SAID SURGES ARE EFFECTIVELY DAMPENED BY A PNEUMATIC BRAKING EFFECT RESULTING FROM A CONTROLLED AMOUNT OF AIR WHICH PASSES OUTWARD AND INWARD, RESPECTIVELY, THROUGH SAID VALVE DURING THE USE OF THE SURGE TANK, DEPENDING ON THE DIRECTIN AND AMOUNT OF SAID SURGES.
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) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |