Patent JPS6059178A successfully refreshed from Google Patents.
US3148707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic hydraulic buffer
Assignee: Individual
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Filing: 1962-03-23
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Granted: 1964-09-15
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Expires: 1982-03-23
Abstract
No abstract record available.
Inventors
- 👤 Smyklo Alexander
- 👤 George B Schildroth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:10
CPC Classifications
F; F16; F16L; F16L55/00; F16L55/04; F16L55/045; F16L55/05; F16L55/052; F15; F15B; F15B1/00; F15B1/02; F15B1/04; F15B1/08; F15B1/24; F15B2201/00; F15B2201/20; F15B2201/205; F15B2201/21; F15B2201/30; F15B2201/31; F15B2201/312; F15B2201/40; F15B2201/41; F15B2201/411; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7927
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
220 words
A HYDRAULIC BUFFER COMPRISING: A BODY MEMBER, AN OPEN END CYLINDER WITHIN SAID BODY MEMBER, AN END MEMBER FOR OPENABLY CLOSING THE OPEN END OF SAID CYLINDER, A FLOATING PISTON WITHIN SAID CYLINDER, SAID PISTON BEING AXIALLY MOVABLE WITHIN SAID CYLINDER AND ADAPTED FOR DIVIDING SAID CYLINDER INTO OPPOSING END CHAMBERS, SEALING MEANS ON SAID PISTON, SAID SEALING MEANS COMPRISING A PLURALITY OF DUCTILE NON-METALLIC RINGS ADAPTED TO PREVENT LEAKAGE FROM ONE OF SAID CHAMBERS INTO THE OPPOSING CHAMBER, AN ORIFICE COMMUNICATING WITH EACH END OF SAID CYLINDER; AT LEAST ONE OF SAID ORIFICES BEING COAXIAL WITH SAID CYLINDER AND PASSING THROUGH SAID END MEMBER, A VALVE SEAT COMMUNICATING WITH SAID COAXIAL ORIFICE, AND A VALVE PLUG SUBASSEMBLY COAXIAL WITH SAID CYLINDER AND SAID VALVE SEAT, AND COMPRISING A RETAINER CUP HAVING EXTERNAL THREADS ENGAGING A THREADED COUNTERBORE IN THE END OF SAID PISTON WITH THE BOTTOM OF THE RETAINER CUP AGAINST THE BOTTOM OF THE COUNTERBORE, A BALL VALVE PLUG, A STEM JOINED TO SAID BALL VALVE PLUG AND SLIDABLY PASSING THROUGH THE BOTTOM OF SAID RETAINER CUP, MEANS JOINED TO SAID STEM FOR RETAINING SAID STEM IN SAID RETAINER CUP, AND A COMPRESSION SPRING DISPOSED OVER SAID STEM AND NESTING ON SAID BALL VALVE PLUG TO AXIALLY BIAS SAID BALL VALVE PLUG FROM THE FACE OF SAID PISTON.
Claim 2
Dependent Claim
220 words
A HYDRAULIC BUFFER COMPRISING: A BODY MEMBER, AN OPEN END CYLINDER WITHIN SAID BODY MEMBER, AN END MEMBER FOR OPENABLY CLOSING THE OPEN END OF SAID CYLINDER, A FLOATING PISTON WITHIN SAID CYLINDER, SAID PISTON BEING AXIALLY MOVABLE WITHIN SAID CYLINDER AND ADAPTED FOR DIVIDING SAID CYLINDER INTO OPPOSING END CHAMBERS, SEALING MEANS ON SAID PISTON, SAID SEALING MEANS COMPRISING A PLURALITY OF DUCTILE NON-METALLIC RINGS ADAPTED TO PREVENT LEAKAGE FROM ONE OF SAID CHAMBERS INTO THE OPPOSING CHAMBER, AN ORIFICE COMMUNICATING WITH EACH END OF SAID CYLINDER; AT LEAST ONE OF SAID ORIFICES BEING COAXIAL WITH SAID CYLINDER AND PASSING THROUGH SAID END MEMBER, A VALVE SEAT COMMUNICATING WITH SAID COAXIAL ORIFICE, AND A VALVE PLUG SUBASSEMBLY COAXIAL WITH SAID CYLINDER AND SAID VALVE SEAT, AND COMPRISING A RETAINER CUP HAVING EXTERNAL THREADS ENGAGING A THREADED COUNTERBORE IN THE END OF SAID PISTON WITH THE BOTTOM OF THE RETAINER CUP AGAINST THE BOTTOM OF THE COUNTERBORE, A BALL VALVE PLUG, A STEM JOINED TO SAID BALL VALVE PLUG AND SLIDABLY PASSING THROUGH THE BOTTOM OF SAID RETAINER CUP, MEANS JOINED TO SAID STEM FOR RETAINING SAID STEM IN SAID RETAINER CUP, AND A COMPRESSION SPRING DISPOSED OVER SAID STEM AND NESTING ON SAID BALL VALVE PLUG TO AXIALLY BIAS SAID BALL VALVE PLUG FROM THE FACE OF SAID PISTON.
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) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |