US3268235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston accumulator seal
Assignee: Shared Technologies Fairchild Telecom Inc
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Filing: 1965-03-29
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Granted: 1966-08-23
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Expires: 1985-03-29
Abstract
No abstract record available.
Inventors
- 👤 Alphonse A Jacobellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:37
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3204; F16J15/3208; Y; Y10; Y10S; Y10S277/00; Y10S277/91
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
A SEALING ASSEMBLY COMPRISING: A CYLINDER HAVING AN INNER SURFACE THEREIN, A PISTON HAVING A SIDE WALL DISPOSED WITHIN SAID CYLINDER TO RECIPROCATE LONGITUDINALLY THEREIN, SIDE PISTON HAVING AN ANNULAR RECESS IN SAID SIDE WALL FACING SAID INNER SURFACE OF SAID CYLINDER, AN O-RING DISPOSED IN SAID RECESS AND A TEFLON SEALING RING PARTIALLY DISPOSED IN SAID RECESS BETWEEN SAID O-RING AND SAID INNER SURFACE OF SAID CYLINDER, SAID SEALING RING HAVING A SHALLOW V-SHAPED INNER SURFACE IN PRESSURE CONTACT WITH SAID O-RING AND AN OUTER RIDING SURFACE IN SEALING CONTACT WITH SAID INNER WALL OF SAID CYLINDER, SAID RIDING SURFACE HAVING A PAIR OF ANNULAR GROOVES DISPOSED THEREIN, SAID GROOVES BEING SPACED ON EITHER SIDE OF THE PLANE OF SYMMETRY OF SAID SEALING RING, SAID O-RING BEING SQUEEZED BETWEEN SAID V-SHAPED SURFACE OF SAID SEALING RING AND THE INNER WALL OF SAID RECESS IN SAID PISTON CAUSING SAID SEALING RING TO BOW SOLELY AROUND SAID O-RING WHEREBY THE OUTER CORNER OF SAID OF SAID GROOVES IN SAID RIDING SURFACE IS FORCED INTO INTIMATE CONTACT WITH SAID INNER SURFACE OF SAID CYLINDER.
Claim 2
Dependent Claim
182 words
A SEALING ASSEMBLY COMPRISING: A CYLINDER HAVING AN INNER SURFACE THEREIN, A PISTON HAVING A SIDE WALL DISPOSED WITHIN SAID CYLINDER TO RECIPROCATE LONGITUDINALLY THEREIN, SIDE PISTON HAVING AN ANNULAR RECESS IN SAID SIDE WALL FACING SAID INNER SURFACE OF SAID CYLINDER, AN O-RING DISPOSED IN SAID RECESS AND A TEFLON SEALING RING PARTIALLY DISPOSED IN SAID RECESS BETWEEN SAID O-RING AND SAID INNER SURFACE OF SAID CYLINDER, SAID SEALING RING HAVING A SHALLOW V-SHAPED INNER SURFACE IN PRESSURE CONTACT WITH SAID O-RING AND AN OUTER RIDING SURFACE IN SEALING CONTACT WITH SAID INNER WALL OF SAID CYLINDER, SAID RIDING SURFACE HAVING A PAIR OF ANNULAR GROOVES DISPOSED THEREIN, SAID GROOVES BEING SPACED ON EITHER SIDE OF THE PLANE OF SYMMETRY OF SAID SEALING RING, SAID O-RING BEING SQUEEZED BETWEEN SAID V-SHAPED SURFACE OF SAID SEALING RING AND THE INNER WALL OF SAID RECESS IN SAID PISTON CAUSING SAID SEALING RING TO BOW SOLELY AROUND SAID O-RING WHEREBY THE OUTER CORNER OF SAID OF SAID GROOVES IN SAID RIDING SURFACE IS FORCED INTO INTIMATE CONTACT WITH SAID INNER SURFACE OF SAID CYLINDER.
References Cited (Backward Citations)
FR1214899A
Cited
US3033578A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |