US3139899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pilot loaded pressure regulator
Assignee: Elster American Meter Co LLC
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Filing: 1961-09-22
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Granted: 1964-07-07
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Expires: 1981-09-22
Abstract
No abstract record available.
Inventors
- 👤 Schwerter Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:07
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/14; G05D16/16; G05D16/163; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7762; Y10T137/7764; Y10T137/7768
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
192 words
IN A GAS PRESSURE REGULATOR HAVING AN INLET, AN OUTLET, A CHAMBER COMMUNICATING WITH THE OUTLET AND CLOSED BY A DIAPHRAGM, FLOW RESTRICTING MEANS BETWEEN THE INLET AND OUTLET, OPERATING MEANS FOR THE FLOW RESTRICTING MEANS INCLUDING A POST WITHIN THE CHAMBER AND SLIDABLY EXTENDING THROUGH THE CENTER OF THE DIAPHRAGM AND HAVING A SHOULDER WITHIN THE CHAMBER ENGAGING THE INNER SIDE OF THE DIAPHRAGM AND A VALVE MEMBER OUTSIDE THE CHAMBER AND SPACED FROM THE OUTER SIDE OF THE DIAPHRAGM, PILOT REGULATOR MEANS SUPPLYING A LOADING PRESSURE GREATER THAN THE NORMAL OUTLET PRESSURE OF THE REGULATOR TO THE OUTER SIDE OF THE DIAPHRAGM WHEREBY THE DIAPHRAGM IS NORMALLY HELD AGAINST THE SHOULDER AND IS LIFTED OFF THE SHOULDER WHEN THE OUTLET PRESSURE RISES ABOVE THE LOADING PRESSURE, A COOPERATING VALVE MEMBER ON THE DIAPHRAGM SPACED FROM SAID FIRST VALVE MEMBER WHEN THE DIAPHRAGM RESTS ON THE SHOULDER AND CLOSING AGAINST THE FIRST VALVE MEMBER WHEN THE DIAPHRAGM IS LIFTED OFF THE SHOULDER, AND A BLEED WAY FROM THE OUTER TO THE INNER SIDE OF THE DIAPHRAGM SHUT OFF BY THE CLOSING OF SAID COOPERATING VALVE MEMBER AGAINST SAID FIRST VALVE MEMBER.
Claim 2
Dependent Claim
192 words
IN A GAS PRESSURE REGULATOR HAVING AN INLET, AN OUTLET, A CHAMBER COMMUNICATING WITH THE OUTLET AND CLOSED BY A DIAPHRAGM, FLOW RESTRICTING MEANS BETWEEN THE INLET AND OUTLET, OPERATING MEANS FOR THE FLOW RESTRICTING MEANS INCLUDING A POST WITHIN THE CHAMBER AND SLIDABLY EXTENDING THROUGH THE CENTER OF THE DIAPHRAGM AND HAVING A SHOULDER WITHIN THE CHAMBER ENGAGING THE INNER SIDE OF THE DIAPHRAGM AND A VALVE MEMBER OUTSIDE THE CHAMBER AND SPACED FROM THE OUTER SIDE OF THE DIAPHRAGM, PILOT REGULATOR MEANS SUPPLYING A LOADING PRESSURE GREATER THAN THE NORMAL OUTLET PRESSURE OF THE REGULATOR TO THE OUTER SIDE OF THE DIAPHRAGM WHEREBY THE DIAPHRAGM IS NORMALLY HELD AGAINST THE SHOULDER AND IS LIFTED OFF THE SHOULDER WHEN THE OUTLET PRESSURE RISES ABOVE THE LOADING PRESSURE, A COOPERATING VALVE MEMBER ON THE DIAPHRAGM SPACED FROM SAID FIRST VALVE MEMBER WHEN THE DIAPHRAGM RESTS ON THE SHOULDER AND CLOSING AGAINST THE FIRST VALVE MEMBER WHEN THE DIAPHRAGM IS LIFTED OFF THE SHOULDER, AND A BLEED WAY FROM THE OUTER TO THE INNER SIDE OF THE DIAPHRAGM SHUT OFF BY THE CLOSING OF SAID COOPERATING VALVE MEMBER AGAINST SAID FIRST VALVE MEMBER.
Claim 3
Dependent Claim
10 words
IN A GAS PRESSURE REGULATOR HAVING AN INLET, AN OUTLET,
Claim 4
Dependent Claim
10 words
IN A GAS PRESSURE REGULATOR HAVING AN INLET, AN OUTLET,
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) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |