US3406705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston gate valve for high pressure media
Assignee: Individual
•
Filing: 1966-04-28
•
Granted: 1968-10-22
•
Expires: 1986-04-28
Abstract
No abstract record available.
Inventors
- 👤 Meyer Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:38
CPC Classifications
F; F16; F16K; F16K27/00; F16K27/04; F16K3/00; F16K3/22; F16K3/24; F16K3/243; F16K3/26; F16K39/00; F16K39/04; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/3118
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
PISTON GATE VALVE COMPRISING IN COMBINATION: A VALVE HOUSING HAVING A PISTON BORE AND ANGULARLY RELATED INLET AND OUTLET AT OPPOSITE SIDES OF THE SAME, A PISTON VALVE ELEMENT OPERABLE IN SAID BORE HAVING A FLOW PASSAGE THERETHROUGH TO REGISTER WITH SAID INLET AND OUTLET IN THE OPEN POSITION OF THE VALVE, SAID PISTON VALVE ELEMENT HAVING A HOLLOW TUBULAR OPERATING COLUMN AND PROVIDED WITH A PASSAGE OPENING INTO SAID THROUGH FLOW PASSAGE, SAID PISTON HAVING A LONGITUDINALLY EXTENDING GROOVE TERMINATING AT ONE END IN A CIRCUMFERENTIALLY EXTENDING GROOVE, AND A SPRING PRESSED GUIDE PIN ON THE HOUSING ENGAGEABLE IN SAID LONGITUDINALLY AND CIRCUMFERENTIALLY EXTENDING GROOVES.
Claim 2
Dependent Claim
106 words
PISTON GATE VALVE COMPRISING IN COMBINATION: A VALVE HOUSING HAVING A PISTON BORE AND ANGULARLY RELATED INLET AND OUTLET AT OPPOSITE SIDES OF THE SAME, A PISTON VALVE ELEMENT OPERABLE IN SAID BORE HAVING A FLOW PASSAGE THERETHROUGH TO REGISTER WITH SAID INLET AND OUTLET IN THE OPEN POSITION OF THE VALVE, SAID PISTON VALVE ELEMENT HAVING A HOLLOW TUBULAR OPERATING COLUMN AND PROVIDED WITH A PASSAGE OPENING INTO SAID THROUGH FLOW PASSAGE, SAID PISTON HAVING A LONGITUDINALLY EXTENDING GROOVE TERMINATING AT ONE END IN A CIRCUMFERENTIALLY EXTENDING GROOVE, AND A SPRING PRESSED GUIDE PIN ON THE HOUSING ENGAGEABLE IN SAID LONGITUDINALLY AND CIRCUMFERENTIALLY EXTENDING GROOVES.
References Cited (Backward Citations)
US1203395A
Cited
US3159378A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-22 | 1972-04-22 | 1972-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-22 | 1976-04-22 | 1976-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-22 | 1980-04-22 | 1980-10-22 | $7700.00 | Window Closed / Lapsed |