Patent US3311027A successfully refreshed from Google Patents.
US3311027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Load maintaining unit for hydraulic fatigue loading machines
Assignee: Eidgenoessisches Flugzeugwerk Emmen
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Filing: 1964-02-17
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Granted: 1967-03-28
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Expires: 1984-02-17
Abstract
No abstract record available.
Inventors
- 👤 Kindlimann Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:57
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/02; G; G01; G01N; G01N3/00; G01N3/32; G01N3/36; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/2053; F15B2211/20538; F15B2211/30; F15B2211/305; F15B2211/30525; F15B2211/31; F15B2211/3105; F15B2211/3111; F15B2211/315; F15B2211/3157; F15B2211/31576; F15B2211/32; F15B2211/321; F15B2211/325; F15B2211/70; F15B2211/705; F15B2211/7051; F15B2211/7052; F15B2211/71; F15B2211/76; F15B2211/78; F15B2211/782; G01N2203/00; G01N2203/003; G01N2203/0042; G01N2203/0048
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
174 words
AN ARRANGEMENT OF THE CHARACTER DESCRIBED COMPRISING, IN COMBINATION, A PLURALITY OF HYDRAULIC WORKING LOAD GENERATORS; A SINGLE SOURCE OF LIQUID UNDER PRESSURE; A PLURALITY OF PRESSURE CONDUITS RESPECTIVELY CONNECTING SAID SINGLE SOURCE OF LIQUID UNDER PRESSURE WITH SAID WORKING LOAD GENERATORS, RESPECTIVELY, FOR FEEDING LIQUID UNDER PRESSURE FROM SAID SINGLE SOURCE INTO THE RESPECTIVE HYDRAULIC WORKING LOAD GENERATORS; A DRAIN CONDUIT FOR EACH WORKING LOAD GENERATOR FOR DISCHARGING PRESSURE LIQUID THEREFROM; VALVE MEANS IN EACH PRESSURE CONDUIT AND THE CORRESPONDING DRAIN CONDUIT AND INCLUDING A VALVE MEMBER MOVABLE FROM AN EQUILIBRIUM POSITION, IN WHICH SAID VALVE MEMBER CLOSES SAID PRESSURE CONDUIT AND THE CORRESPONDING DRAIN CONDUIT, IN A FIRST DIRECTION TO A FEED POSITION CONNECTING THE RESPECTIVE PRESSURE CONDUIT WITH THE RESPECTIVE WORKING LOAD GENERATOR, AND MOVABLE FROM SAID EQUILIBRIUM POSITION IN A SECOND DIRECTION TO A DISCHARGE POSITION CONNECTING THE RESPECTIVE DRAIN CONDUIT WITH SAID WORKING LOAD GENERATOR; MEANS FOR TRANSMITTING THE FLUID PRESSURE IN SAID WORKING LOAD GENERATOR TO SAID VALVE MEMBER, SAID MEANS BEING CONSTRUCTED AND ARRANGED SO AS TO
Claim 2
Dependent Claim
174 words
AN ARRANGEMENT OF THE CHARACTER DESCRIBED COMPRISING, IN COMBINATION, A PLURALITY OF HYDRAULIC WORKING LOAD GENERATORS; A SINGLE SOURCE OF LIQUID UNDER PRESSURE; A PLURALITY OF PRESSURE CONDUITS RESPECTIVELY CONNECTING SAID SINGLE SOURCE OF LIQUID UNDER PRESSURE WITH SAID WORKING LOAD GENERATORS, RESPECTIVELY, FOR FEEDING LIQUID UNDER PRESSURE FROM SAID SINGLE SOURCE INTO THE RESPECTIVE HYDRAULIC WORKING LOAD GENERATORS; A DRAIN CONDUIT FOR EACH WORKING LOAD GENERATOR FOR DISCHARGING PRESSURE LIQUID THEREFROM; VALVE MEANS IN EACH PRESSURE CONDUIT AND THE CORRESPONDING DRAIN CONDUIT AND INCLUDING A VALVE MEMBER MOVABLE FROM AN EQUILIBRIUM POSITION, IN WHICH SAID VALVE MEMBER CLOSES SAID PRESSURE CONDUIT AND THE CORRESPONDING DRAIN CONDUIT, IN A FIRST DIRECTION TO A FEED POSITION CONNECTING THE RESPECTIVE PRESSURE CONDUIT WITH THE RESPECTIVE WORKING LOAD GENERATOR, AND MOVABLE FROM SAID EQUILIBRIUM POSITION IN A SECOND DIRECTION TO A DISCHARGE POSITION CONNECTING THE RESPECTIVE DRAIN CONDUIT WITH SAID WORKING LOAD GENERATOR; MEANS FOR TRANSMITTING THE FLUID PRESSURE IN SAID WORKING LOAD GENERATOR TO SAID VALVE MEMBER, SAID MEANS BEING CONSTRUCTED AND ARRANGED SO AS TO
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) | 1970-03-27 | 1970-09-26 | 1971-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-27 | 1974-09-26 | 1975-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-27 | 1978-09-26 | 1979-03-28 | $7700.00 | Window Closed / Lapsed |