US3095004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valves with upstream-downstream sealing
Assignee: MCEVOY CO
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Filing: 1961-09-26
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Granted: 1963-06-25
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Expires: 1981-09-26
Abstract
No abstract record available.
Inventors
- 👤 Jr John G Jackson
- 👤 Allen F Rhodes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:36
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/30; F16K3/36; Y; Y10; Y10T; Y10T137/00; Y10T137/4238; Y10T137/4358; Y10T137/4365; Y10T137/4372
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
GATE VALVE OF THE INTERNAL PRESSURE AUTOMATIC SEALING TYPE, COMPRISING A BODY HAVING FLOW PASSAGE MEANS THERETHROUGH AND AN INTERNAL VALVE CHAMBER THEREWITHIN INTERMEDIATE THE LENGTH OF SAID FLOW PASSAGE, VALVE CLOSURE MEANS DISPOSED IN SAID CHAMBER FOR CLOSING SAID FLOW PASSAGE MEANS, MEANS FOR MOVING SAID CLOSURE MEANS BETWEEN OPEN AND CLOSED POSITIONS WITH RESPECT TO SAID FLOW PASSAGE FROM THE EXTERIOR OF SAID BODY, SEALING MEANS WITHIN SAID BODY FOR SEALING AROUND SAID FLOW PASSAGE MEANS AT SAID CLOSURE MEANS WHEN SAID CLOSURE MEANS IS IN SAID CLOSED POSITION WITH RESPECT TO SAID FLOW PASSAGE, SEALANT RESERVOIR MEANS HAVING SEALANT FLOW COMMUNICATION MEANS THEREFROM TO SAID SEALING MEANS, MEANS FOR CONTROLLED ADMISSION OF FLUID PRESSURE FROM SAID FLOW PASSAGE MEANS TO PRESSURE SEALANT IN SAID RESERVOIR MEANS,
Claim 2
Dependent Claim
129 words
GATE VALVE OF THE INTERNAL PRESSURE AUTOMATIC SEALING TYPE, COMPRISING A BODY HAVING FLOW PASSAGE MEANS THERETHROUGH AND AN INTERNAL VALVE CHAMBER THEREWITHIN INTERMEDIATE THE LENGTH OF SAID FLOW PASSAGE, VALVE CLOSURE MEANS DISPOSED IN SAID CHAMBER FOR CLOSING SAID FLOW PASSAGE MEANS, MEANS FOR MOVING SAID CLOSURE MEANS BETWEEN OPEN AND CLOSED POSITIONS WITH RESPECT TO SAID FLOW PASSAGE FROM THE EXTERIOR OF SAID BODY, SEALING MEANS WITHIN SAID BODY FOR SEALING AROUND SAID FLOW PASSAGE MEANS AT SAID CLOSURE MEANS WHEN SAID CLOSURE MEANS IS IN SAID CLOSED POSITION WITH RESPECT TO SAID FLOW PASSAGE, SEALANT RESERVOIR MEANS HAVING SEALANT FLOW COMMUNICATION MEANS THEREFROM TO SAID SEALING MEANS, MEANS FOR CONTROLLED ADMISSION OF FLUID PRESSURE FROM SAID FLOW PASSAGE MEANS TO PRESSURE SEALANT IN SAID RESERVOIR MEANS,
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) | 1966-06-24 | 1966-12-24 | 1967-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-24 | 1970-12-24 | 1971-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-24 | 1974-12-24 | 1975-06-25 | $7700.00 | Window Closed / Lapsed |