Patent US2184587A successfully refreshed from Google Patents.
Patent US3213880A successfully refreshed from Google Patents.
US3213880A
Expired / Lapsed
US
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Hydraulic control valve
Assignee: International Motors LLC
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Filing: 1963-06-19
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Granted: 1965-10-26
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Expires: 1983-06-19
Abstract
No abstract record available.
Inventors
- 👤 Verne P Donner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:33
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; F15B13/06; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T137/86694; Y10T137/8671; Y10T137/87169
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A HYDRAULIC VALVE UNIT COMPRISING A BODY MEMBER HAVING AT LEAST THREE SUBSTANTIALLY PARALLEL BORES THEREIN, AN INLET CHAMBER IN SAID MEMBER, A PAIR OF FIRST SPACED PASSAGES EXTENDING FROM SAID INLET CHAMBER INTO COMMUNICATION WITH THE FIRST OF SAID BORES AND SUBSTANTIALLY PERPENDICULAR THERETO, A SECOND PASSAGE POSITIONED BETWEEN AND CENTRALLY OF SAID PAIR OF FIRST PASSAGES AND EXTENDING SUBSTANTIALLY PERPENDICULARLY THROUGHOUT FROM SAID FIRST BORE INTO SUBSTANTIALLY PERPENDICULAR COMMUNICATION WITH THE SECOND OF SAID BORES, A PAIR OF THIRD PASSAGES POSITIONED ONE ON EITHER SIDE OF SAID SECOND PASSAGE AND SUBSTANTIALLY EQUIDISTANT THEREFROM, SAID PAIR OF THIRD PASSAGES EXTENDING SUBSTANTIALLY PERPENDICULARLY THROUGHOUT FROM SAID SECOND BORE INTO SUBSTANTIALLY PERPENDICULAR COMMUNICATED WITH THE THIRD OF SAID BORES, A FOURTH PASSAGE POSITIONED BETWEEN THE CENTRALLY OF SAID PAIR OF THIRD PASSAGES AND COMMUNICATIVELY CONNECTED WITH SAID THIRD BORE, AND AN OUTLET CHAMBER IN SAID MEMBER AND COMMUNICATING WITH SAID FOURTH PASSAGE.
Claim 2
Dependent Claim
151 words
A HYDRAULIC VALVE UNIT COMPRISING A BODY MEMBER HAVING AT LEAST THREE SUBSTANTIALLY PARALLEL BORES THEREIN, AN INLET CHAMBER IN SAID MEMBER, A PAIR OF FIRST SPACED PASSAGES EXTENDING FROM SAID INLET CHAMBER INTO COMMUNICATION WITH THE FIRST OF SAID BORES AND SUBSTANTIALLY PERPENDICULAR THERETO, A SECOND PASSAGE POSITIONED BETWEEN AND CENTRALLY OF SAID PAIR OF FIRST PASSAGES AND EXTENDING SUBSTANTIALLY PERPENDICULARLY THROUGHOUT FROM SAID FIRST BORE INTO SUBSTANTIALLY PERPENDICULAR COMMUNICATION WITH THE SECOND OF SAID BORES, A PAIR OF THIRD PASSAGES POSITIONED ONE ON EITHER SIDE OF SAID SECOND PASSAGE AND SUBSTANTIALLY EQUIDISTANT THEREFROM, SAID PAIR OF THIRD PASSAGES EXTENDING SUBSTANTIALLY PERPENDICULARLY THROUGHOUT FROM SAID SECOND BORE INTO SUBSTANTIALLY PERPENDICULAR COMMUNICATED WITH THE THIRD OF SAID BORES, A FOURTH PASSAGE POSITIONED BETWEEN THE CENTRALLY OF SAID PAIR OF THIRD PASSAGES AND COMMUNICATIVELY CONNECTED WITH SAID THIRD BORE, AND AN OUTLET CHAMBER IN SAID MEMBER AND COMMUNICATING WITH SAID FOURTH PASSAGE.
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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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |