Patent US3340897A successfully refreshed from Google Patents.
US3340897A
Expired / Lapsed
US
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Fluid control mechanism
Assignee: Ohio Brass Co
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Filing: 1965-05-07
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Granted: 1967-09-12
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Expires: 1985-05-07
Abstract
No abstract record available.
Inventors
- 👤 Nevulis Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:43
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; F15B13/04; F15B13/042; F15B13/0422; F15B13/0401; F15B13/0402; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86582
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A CONTROL VALVE FOR USE IN A FLUID PRESSURE SYSTEM OF THE TYPE TO BE REMOTELY CONTROLLED BY A RELATIVELY LOW PRESSURE SIGNAL COMPRISING, A BODY HAVING AN INLET PORT ADAPTED FOR CONNECTION TO A SOURCE OF FLUID WORKING PRESSURE AND A PAIR OF DISTRIBUTING PORTS, SPOOL VALVE MEANS MOVABLE IN SAID BODY FOR CONTROLLING THE FLOW OF FLUID WORKING PRESSURE FROM SAID INLET PORT TO A SELECTIVE ONE OF SAID DISTRIBUTING PORTS, POPPET-LIKE METERING VALVE MEANS OPERABLY CONNECTED TO SAID BODY, PASSAGEWAY MEANS COMMUNICATING SAID INLET PORT WITH SAID POPPET-LIKE METERING VALVE MEANS, AND FLUID ACTUATING CHAMBER MEANS COMMUNICATING SAID POPPET-LIKE METERING VALVE MEANS WITH SAID SPOOL VALVE MEANS FOR ACTUATING SAID SPOOL VALVE MEANS BY SAID FLUID WORKING PRESSURE IN RESPONSE TO A RELATIVELY LOW PRESSURE SIGNAL GENERATED REMOTE FROM SAID CONTROL VALVE.
Claim 2
Dependent Claim
135 words
A CONTROL VALVE FOR USE IN A FLUID PRESSURE SYSTEM OF THE TYPE TO BE REMOTELY CONTROLLED BY A RELATIVELY LOW PRESSURE SIGNAL COMPRISING, A BODY HAVING AN INLET PORT ADAPTED FOR CONNECTION TO A SOURCE OF FLUID WORKING PRESSURE AND A PAIR OF DISTRIBUTING PORTS, SPOOL VALVE MEANS MOVABLE IN SAID BODY FOR CONTROLLING THE FLOW OF FLUID WORKING PRESSURE FROM SAID INLET PORT TO A SELECTIVE ONE OF SAID DISTRIBUTING PORTS, POPPET-LIKE METERING VALVE MEANS OPERABLY CONNECTED TO SAID BODY, PASSAGEWAY MEANS COMMUNICATING SAID INLET PORT WITH SAID POPPET-LIKE METERING VALVE MEANS, AND FLUID ACTUATING CHAMBER MEANS COMMUNICATING SAID POPPET-LIKE METERING VALVE MEANS WITH SAID SPOOL VALVE MEANS FOR ACTUATING SAID SPOOL VALVE MEANS BY SAID FLUID WORKING PRESSURE IN RESPONSE TO A RELATIVELY LOW PRESSURE SIGNAL GENERATED REMOTE FROM SAID CONTROL VALVE.
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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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |