Patent US3103949A successfully refreshed from Google Patents.
US3103949A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure relief devices
Assignee: Individual
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Filing: 1960-08-09
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Granted: 1963-09-17
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Expires: 1980-08-09
Abstract
No abstract record available.
Inventors
- 👤 Fiorentini Pietro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:23
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/0616; G05D16/0619; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7762; Y10T137/7769; Y10T137/7781; Y10T137/7782; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T137/86686
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
212 words
A PRESSURE REDUCER FOR FLUIDS, ESPECIALLY FOR GAS, COMPRISING IN COMBINATION: A HOUSING, A HIGH PRESSURE CHAMBER, A LOW PRESSURE CHAMBER, AND AN INTERMEDIATE PRESSURE CHAMBER IN THE HOUSING, A PORT CONNECTING THE HIGH PRESSURE AND LOW PRESSURE CHAMBERS, A VALVE PISTON CONTROLLING SAID PORT, SAID VALVE PISTON HAVING A ROD ATTACHED THERETO, A BODY MEMBER ATTACHED TO SAID ROD, A VALVE MEMBER IN SAID BODY MEMBER HAVING A LIMITED AMOUNT OF AXIAL MOVEMENT IN SAID BODY MEMBER, A DIAPHRAGM ATTACHED TO SAID VALVE MEMBER, A SPRING ACTING ON THE DIAPHRAGM IN THE DIRECTION IN WHICH SAID VALVE PISTON MOVES TO OPEN SAID PORT, ONE SIDE OF SAID DIAPHRAGM BEING EXPOSED TO PRESSURE IN SAID LOW PRESSURE CHAMBER FOR URGING SAID DIAPHRAGM IN THE DIRECTION IN WHICH SAID VALVE PISTON MOVES FOR CLOSING SAID PORT, SAID BODY MEMBER HAVING CHAMBER MEANS THEREIN IN WHICH SAID VALVE MEMBER IS LOCATED AND WHICH CHAMBER MEANS COMMUNICATES WITH SAID INTERMEDIATE PRESSURE CHAMBER, A FIRST PASSAGE LEADING FROM SAID CHAMBER MEANS TO SAID HIGH PRESSURE CHAMBER, A SECOND PASSAGE LEADING FROM SAID CHAMBER MEANS TO EXHAUST, SAID FIRST AND SECOND PASSAGES TERMINATING RESPECTIVELY IN FIRST AND SECOND PORTS IN SAID BODY MEMBER OPENING INTO SAID CHAMBER MEANS ADJACENT SAID VALVE MEMBER, SAID FIRST AND SECOND PORTS
Claim 2
Dependent Claim
212 words
A PRESSURE REDUCER FOR FLUIDS, ESPECIALLY FOR GAS, COMPRISING IN COMBINATION: A HOUSING, A HIGH PRESSURE CHAMBER, A LOW PRESSURE CHAMBER, AND AN INTERMEDIATE PRESSURE CHAMBER IN THE HOUSING, A PORT CONNECTING THE HIGH PRESSURE AND LOW PRESSURE CHAMBERS, A VALVE PISTON CONTROLLING SAID PORT, SAID VALVE PISTON HAVING A ROD ATTACHED THERETO, A BODY MEMBER ATTACHED TO SAID ROD, A VALVE MEMBER IN SAID BODY MEMBER HAVING A LIMITED AMOUNT OF AXIAL MOVEMENT IN SAID BODY MEMBER, A DIAPHRAGM ATTACHED TO SAID VALVE MEMBER, A SPRING ACTING ON THE DIAPHRAGM IN THE DIRECTION IN WHICH SAID VALVE PISTON MOVES TO OPEN SAID PORT, ONE SIDE OF SAID DIAPHRAGM BEING EXPOSED TO PRESSURE IN SAID LOW PRESSURE CHAMBER FOR URGING SAID DIAPHRAGM IN THE DIRECTION IN WHICH SAID VALVE PISTON MOVES FOR CLOSING SAID PORT, SAID BODY MEMBER HAVING CHAMBER MEANS THEREIN IN WHICH SAID VALVE MEMBER IS LOCATED AND WHICH CHAMBER MEANS COMMUNICATES WITH SAID INTERMEDIATE PRESSURE CHAMBER, A FIRST PASSAGE LEADING FROM SAID CHAMBER MEANS TO SAID HIGH PRESSURE CHAMBER, A SECOND PASSAGE LEADING FROM SAID CHAMBER MEANS TO EXHAUST, SAID FIRST AND SECOND PASSAGES TERMINATING RESPECTIVELY IN FIRST AND SECOND PORTS IN SAID BODY MEMBER OPENING INTO SAID CHAMBER MEANS ADJACENT SAID VALVE MEMBER, SAID FIRST AND SECOND PORTS
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-16 | 1967-03-18 | 1967-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-16 | 1971-03-18 | 1971-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-16 | 1975-03-18 | 1975-09-17 | $7700.00 | Window Closed / Lapsed |