Patent US3206162A successfully refreshed from Google Patents.
US3206162A
Expired / Lapsed
US
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Double gate valve
Assignee: Combustion Engineering Inc
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Filing: 1962-12-28
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Granted: 1965-09-14
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Expires: 1982-12-28
Abstract
No abstract record available.
Inventors
- 👤 Bogot Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 04:01
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/30; F16K3/36; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87917; Y10T137/87981
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN A SINGLE GATE VALVE FOR CONTROLLING FLOW OF FLUID UNDER PRESSURE, A PAIR OF SPACED SUBSTANTIALLY FLAT INTERCONNECTED GATES, A FIRST PAIR OF FIXED VALVE SEATS, MEANS FOR MOVING SAID SPACED GATES IN THEIR PLANES BETWEEN AND ACROSS SAID SEATS FOR VALVE CLOSING AND FLUID FLOW BLOCKING COOPERATION WITH SAID SEATS, A SECOND PAIR OF FIXED SEATS, MEANS SUPPORTING SAID SECOND PAIR OF SEATS BETWEEN SAID FIRST PAIR OF SEATS FOR VALVE CLOSING AND FLUID FLOW BLOCKING COOPERATION WITH SAID GATES AND MEANS INTRODUCING PRESSURE FLUID AT A PRESSURE HIGHER THAN THE PRESSURE OF THE CONTROLLED FLUID INTO THE SPACED BETWEEN SAID GATES AND BETWEEN SAID SECOND PAIR OF SEATS.
Claim 2
Dependent Claim
111 words
IN A SINGLE GATE VALVE FOR CONTROLLING FLOW OF FLUID UNDER PRESSURE, A PAIR OF SPACED SUBSTANTIALLY FLAT INTERCONNECTED GATES, A FIRST PAIR OF FIXED VALVE SEATS, MEANS FOR MOVING SAID SPACED GATES IN THEIR PLANES BETWEEN AND ACROSS SAID SEATS FOR VALVE CLOSING AND FLUID FLOW BLOCKING COOPERATION WITH SAID SEATS, A SECOND PAIR OF FIXED SEATS, MEANS SUPPORTING SAID SECOND PAIR OF SEATS BETWEEN SAID FIRST PAIR OF SEATS FOR VALVE CLOSING AND FLUID FLOW BLOCKING COOPERATION WITH SAID GATES AND MEANS INTRODUCING PRESSURE FLUID AT A PRESSURE HIGHER THAN THE PRESSURE OF THE CONTROLLED FLUID INTO THE SPACED BETWEEN SAID GATES AND BETWEEN SAID SECOND PAIR OF SEATS.
References Cited (Backward Citations)
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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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |