US3123094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual diaphragm pressure responsive flow control valve
Assignee: —
•
Filing: —
•
Granted: 1964-03-03
•
Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:16
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/36; F16K31/365; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7793; Y10T137/7796; Y10T137/7809; Y10T137/7812; Y10T137/7813
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A FLUID CONTROL INCLUDING A VALVE BODY PROVIDED WITH A FLUID INLET AND A FLUID OUTLET AND A FIRST PASSAGE EXTENDING FROM SAID INLET TO SAID OUTLET, A FIRST DIAPHRAGM MEANS WITHIN SAID VALVE BODY HAVING ONE FACE EXPOSED TO THE PRESSURE AT SAID INLET, A SECOND DIAPHRAGM MEANS IN SAID VALVE BODY HAVING ONE FACE EXPOSED TO THE PRESSURE AT SAID INLET, VALVE MEANS WITHIN SAID VALVE BODY FOR CONTROLLING THE FLOW OF FLUID THROUGH SAID OUTLET, OPERATING MEANS FOR SAID VALVE MEANS OPERABLY CONNECTED TO SAID FIRST AND SECOND DIAPHRAGM MEANS, RESTRICTED SECOND PASSAGE MEANS EXTENDING IN PARALLEL CIRCUIT RELATIVE TO SAID FIRST PASSAGE THROUGH THE VALVE BODY FROM SAID INLET TO SAID OUTLET, SAID FIRST AND SECOND DIAPHRAGM MEANS HAVING DIFFERENT EFFECTIVE AREAS AND EACH HAVING THEIR SECOND FACES EXPOSED TO THE FLUID PRESSURE IN AN INTERMEDIATE PORTION OF SAID SECOND PASSAGE MEANS.
Claim 2
Dependent Claim
146 words
A FLUID CONTROL INCLUDING A VALVE BODY PROVIDED WITH A FLUID INLET AND A FLUID OUTLET AND A FIRST PASSAGE EXTENDING FROM SAID INLET TO SAID OUTLET, A FIRST DIAPHRAGM MEANS WITHIN SAID VALVE BODY HAVING ONE FACE EXPOSED TO THE PRESSURE AT SAID INLET, A SECOND DIAPHRAGM MEANS IN SAID VALVE BODY HAVING ONE FACE EXPOSED TO THE PRESSURE AT SAID INLET, VALVE MEANS WITHIN SAID VALVE BODY FOR CONTROLLING THE FLOW OF FLUID THROUGH SAID OUTLET, OPERATING MEANS FOR SAID VALVE MEANS OPERABLY CONNECTED TO SAID FIRST AND SECOND DIAPHRAGM MEANS, RESTRICTED SECOND PASSAGE MEANS EXTENDING IN PARALLEL CIRCUIT RELATIVE TO SAID FIRST PASSAGE THROUGH THE VALVE BODY FROM SAID INLET TO SAID OUTLET, SAID FIRST AND SECOND DIAPHRAGM MEANS HAVING DIFFERENT EFFECTIVE AREAS AND EACH HAVING THEIR SECOND FACES EXPOSED TO THE FLUID PRESSURE IN AN INTERMEDIATE PORTION OF SAID SECOND PASSAGE 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) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |