Patent US3368792A successfully refreshed from Google Patents.
US3368792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gate stop valve
Assignee: Individual
•
Filing: 1966-02-16
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Granted: 1968-02-13
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Expires: 1986-02-16
Abstract
No abstract record available.
Inventors
- 👤 Schertler Siegfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:19
CPC Classifications
F; F16; F16K; F16K3/00; F16K3/02; F16K3/16; F16K3/18; F16K3/184; F16K51/00; F16K51/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
195 words
A GATE STOP VALVE COMPRISING IN COMBINATION: A CASING HAVING AN INLET PORT AND AN OUTLET PORT, AN OBTURATOR ASSEMBLY SLIDABLY ARRANGED IN SAID CASING IN OPERATIVE RELATIONSHIP TO SAID PORTS, SAID OBTURATOR ASSEMBLY COMPRISING A VALVE PLATE AND A SUPPORT PLATE CAPABLE OF BEING SPREAD APART AND OF BEING PRESSED AGAINST SEAT SURFACES ON THE INTERIOR OF SAID CASING SURROUNDING SAID INLET PORT AND OUTLET PORT, RESPECTIVELY, TENSION SPRINGS CONNECTING SAID VALVE PLATE AND SUPPORT PLATE WITH ONE ANOTHER, A CAGE ARRANGED BETWEEN SAID TWO PLATES AND HAVING A BORE EXTENDING FROM AND TO AND BETWEEN SAID TWO PLATES, A PAIR OF ROLLER BODIES ARRANGED WITH CLEARANCE IN SAID BORE ONE ON TOP OF THE OTHER AND EACH HAVING A DIAMETER EXCEEDING HALF THE LENGTH OF SAID BORE, JUXTAPOSED RECESSES BEING PROVIDED IN SAID TWO PLATES, IN WHICH SAID ROLLER BODIES REST IN THE OPEN POSITION OF THE GATE, AND A PUSH-PULL ROD ATTACHED TO SAID CAGE AND PASSING SEALED TO THE OUTSIDE OF AND CASING, AND, WHEN PUSHED INTO SAID CASING, FORCING SAID ROLLER BODIES OUT OF THEIR RECESSES AND PRESSING SAID PLATES AGAINST THEIR SEATS, SO AS TO CLOSE SAID GATE TIGHTLY.
Claim 2
Dependent Claim
195 words
A GATE STOP VALVE COMPRISING IN COMBINATION: A CASING HAVING AN INLET PORT AND AN OUTLET PORT, AN OBTURATOR ASSEMBLY SLIDABLY ARRANGED IN SAID CASING IN OPERATIVE RELATIONSHIP TO SAID PORTS, SAID OBTURATOR ASSEMBLY COMPRISING A VALVE PLATE AND A SUPPORT PLATE CAPABLE OF BEING SPREAD APART AND OF BEING PRESSED AGAINST SEAT SURFACES ON THE INTERIOR OF SAID CASING SURROUNDING SAID INLET PORT AND OUTLET PORT, RESPECTIVELY, TENSION SPRINGS CONNECTING SAID VALVE PLATE AND SUPPORT PLATE WITH ONE ANOTHER, A CAGE ARRANGED BETWEEN SAID TWO PLATES AND HAVING A BORE EXTENDING FROM AND TO AND BETWEEN SAID TWO PLATES, A PAIR OF ROLLER BODIES ARRANGED WITH CLEARANCE IN SAID BORE ONE ON TOP OF THE OTHER AND EACH HAVING A DIAMETER EXCEEDING HALF THE LENGTH OF SAID BORE, JUXTAPOSED RECESSES BEING PROVIDED IN SAID TWO PLATES, IN WHICH SAID ROLLER BODIES REST IN THE OPEN POSITION OF THE GATE, AND A PUSH-PULL ROD ATTACHED TO SAID CAGE AND PASSING SEALED TO THE OUTSIDE OF AND CASING, AND, WHEN PUSHED INTO SAID CASING, FORCING SAID ROLLER BODIES OUT OF THEIR RECESSES AND PRESSING SAID PLATES AGAINST THEIR SEATS, SO AS TO CLOSE SAID GATE TIGHTLY.
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) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |