US3137474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shut-down device for pump pressure regulator
Assignee: Leslie Co
•
Filing: 1961-04-18
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Granted: 1964-06-16
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Expires: 1981-04-18
Abstract
No abstract record available.
Inventors
- 👤 Soderberg Sten
- 👤 John T Muller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:34
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/02; F16K17/04; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7762; Y10T137/7764; Y10T137/7768; Y10T137/7781; Y10T137/7782; Y10T74/00; Y10T74/21; Y10T74/2142; Y10T74/2144; Y10T74/2148
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
IN A PRESSURE REGULATOR INCLUDING A CONTROL VALVE; A YOKE, A CONTROL VALVE STEM IN OPERATIVE ENGAGEMENT WITH ONE END OF THE YOKE SPRING OPERATIVELY CONNECTED TO THE OTHER END OF THE YOKE AND ADAPTED TO URGE THE CONTROL VALVE INTO ONE FLUID-CONTROL POSITION, A CONTROL VALVE SPRING OPERATIVELY CONNECTED TO THE CONTROL VALVE AND ADAPTED TO URGE THE CONTROL VALVE INTO ANOTHER FLUIDCONTROL POSITION, AND A DIAPHRAGM IN OPERATIVE ENGAGEMENT WITH THE YOKE AND ADAPTED IN RESPONSE TO A CONTROLLING FLUID PRESSURE TO COMBINE WITH THE CONTROL VALVE SPRING IN RESISTING THE ACTION OF THE YOKE SPRING, A SHUT-DOWN DEVICE WHICH COMPRISES A FRAME MEMBER INTERPOSED BETWEEN THE YOKE SPRING AND THE YOKE FOR TRANSMITTING THE FORCE OF THE SPRING TO THE YOKE TO ACTUATE THE CONTROL VALVE, THE FRAME MEMBER BEING SPACED FROM THE YOKE, A TRIP ARM EXTENDING CROSSWISE OF THE FRAME MEMBER AND PIVOTED THERETO INTERMEDIATE ITS ENDS, A TRIP LATCH MOUNTED
Claim 2
Dependent Claim
156 words
IN A PRESSURE REGULATOR INCLUDING A CONTROL VALVE; A YOKE, A CONTROL VALVE STEM IN OPERATIVE ENGAGEMENT WITH ONE END OF THE YOKE SPRING OPERATIVELY CONNECTED TO THE OTHER END OF THE YOKE AND ADAPTED TO URGE THE CONTROL VALVE INTO ONE FLUID-CONTROL POSITION, A CONTROL VALVE SPRING OPERATIVELY CONNECTED TO THE CONTROL VALVE AND ADAPTED TO URGE THE CONTROL VALVE INTO ANOTHER FLUIDCONTROL POSITION, AND A DIAPHRAGM IN OPERATIVE ENGAGEMENT WITH THE YOKE AND ADAPTED IN RESPONSE TO A CONTROLLING FLUID PRESSURE TO COMBINE WITH THE CONTROL VALVE SPRING IN RESISTING THE ACTION OF THE YOKE SPRING, A SHUT-DOWN DEVICE WHICH COMPRISES A FRAME MEMBER INTERPOSED BETWEEN THE YOKE SPRING AND THE YOKE FOR TRANSMITTING THE FORCE OF THE SPRING TO THE YOKE TO ACTUATE THE CONTROL VALVE, THE FRAME MEMBER BEING SPACED FROM THE YOKE, A TRIP ARM EXTENDING CROSSWISE OF THE FRAME MEMBER AND PIVOTED THERETO INTERMEDIATE ITS ENDS, A TRIP LATCH MOUNTED
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) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |