US3230977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston accumulator
Assignee: MERCIER ACCUMULATOR Corp A CORP OF
•
Filing: 1964-07-14
•
Granted: 1966-01-25
•
Expires: 1984-07-14
Abstract
No abstract record available.
Inventors
- 👤 Mercier Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:37
CPC Classifications
F; F15; F15B; F15B1/00; F15B1/02; F15B1/04; F15B1/08; F15B1/24; F15B2201/00; F15B2201/20; F15B2201/205; F15B2201/30; F15B2201/31; F15B2201/312; F15B2201/40; F15B2201/41; F15B2201/415; F15B2201/4155
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
213 words
A PRESSURE VESSEL COMPRISING A CYLINDER HAVING A GAS INLET PORT AND A FLUID PORT, SAID CYLINDER HAVING A TRANSVERSE OPENING THERETHROUGH SUBSTANTIALLY MIDWAY BETWEEN ITS ENDS, A PISTON SLIDABLY MOUNTED IN SAID CYLINDER INTERVENING BETWEEN SAID PORTS AND DEFINING A GAS CHAMBER AND A FLUID CHAMBER, SAID PISTON HAVING A PAIR OF SPACED ANNULAR GROOVES IN ITS PERIPHERY AND A THIRD ELONGATED GROOVE INTERPOSED BETWEEN SAID PAIR OF SAID ANNULAR GROOVES, SAID PISTON BEING OF LENGTH SUCH THAT IN ALL POSITIONS THEREOF IN SAID CYLINDER SAID TRANSVERSE OPENING WILL LEAD INTO SAID ELONGATED ANNULAR GROOVE, SAID PISTON COMPRISING AN ELONGATED SLEEVE HAVING A WALL THEREIN EXTENDING THEREACROSS DEFINING TWO CHAMBERS, ONE BEING IN COMMUNICATION WITH THE GAS CHAMBER, A COMPRESSIBLE MEMBER POSITIONED IN THE OTHER CHAMBER IN SAID PISTON, MEANS SEALING THE OPEN END OF SAID OTHER CHAMBER, SAID SECOND CHAMBER BEING IN COMMUNICATION WITH THE ELONGATED ANNULAR GROOVE, A RESILIENT DEFORMABLE ANNULAR SEAL IN EACH OF SAID PAIR OF SAID SPACED ANNULAR GROOVES, SAID SEALS ENGAGING THE INNER WALL OF SAID CYLINDER, AND VALVE MEANS CONNECTED TO SAID TRANSVERSE OPENING TO CONTROL FLOW THROUGH THE LATTER THEREBY CONTROLLING THE PRESSURE IN SAID ELONGATED ANNULAR GROOVE, SAID VALVE MEANS BEING ADAPTED TO RELIEVE SAID PRESSURE WHEN IT HAS ATTAINED A PREDETERMINED VALUE.
Claim 2
Dependent Claim
213 words
A PRESSURE VESSEL COMPRISING A CYLINDER HAVING A GAS INLET PORT AND A FLUID PORT, SAID CYLINDER HAVING A TRANSVERSE OPENING THERETHROUGH SUBSTANTIALLY MIDWAY BETWEEN ITS ENDS, A PISTON SLIDABLY MOUNTED IN SAID CYLINDER INTERVENING BETWEEN SAID PORTS AND DEFINING A GAS CHAMBER AND A FLUID CHAMBER, SAID PISTON HAVING A PAIR OF SPACED ANNULAR GROOVES IN ITS PERIPHERY AND A THIRD ELONGATED GROOVE INTERPOSED BETWEEN SAID PAIR OF SAID ANNULAR GROOVES, SAID PISTON BEING OF LENGTH SUCH THAT IN ALL POSITIONS THEREOF IN SAID CYLINDER SAID TRANSVERSE OPENING WILL LEAD INTO SAID ELONGATED ANNULAR GROOVE, SAID PISTON COMPRISING AN ELONGATED SLEEVE HAVING A WALL THEREIN EXTENDING THEREACROSS DEFINING TWO CHAMBERS, ONE BEING IN COMMUNICATION WITH THE GAS CHAMBER, A COMPRESSIBLE MEMBER POSITIONED IN THE OTHER CHAMBER IN SAID PISTON, MEANS SEALING THE OPEN END OF SAID OTHER CHAMBER, SAID SECOND CHAMBER BEING IN COMMUNICATION WITH THE ELONGATED ANNULAR GROOVE, A RESILIENT DEFORMABLE ANNULAR SEAL IN EACH OF SAID PAIR OF SAID SPACED ANNULAR GROOVES, SAID SEALS ENGAGING THE INNER WALL OF SAID CYLINDER, AND VALVE MEANS CONNECTED TO SAID TRANSVERSE OPENING TO CONTROL FLOW THROUGH THE LATTER THEREBY CONTROLLING THE PRESSURE IN SAID ELONGATED ANNULAR GROOVE, SAID VALVE MEANS BEING ADAPTED TO RELIEVE SAID PRESSURE WHEN IT HAS ATTAINED A PREDETERMINED VALUE.
References Cited (Backward Citations)
US2440065A
Cited
US2683467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |