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US3124364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston ring assembly
Assignee: —
•
Filing: —
•
Granted: 1964-03-10
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Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:51
CPC Classifications
F; F16; F16J; F16J9/00; F16J9/12; F16J9/20; F16J9/203; F16J9/06; F16J9/064; F16J9/066; F16J9/067
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
AN OIL RING ASSEMBLY FOR USE IN THE OIL GROOVE OF A PISTON IN AN INTERNAL COMBUSTION ENGINE INCLUDING IN COMBINATION, A ONE-PIECE EXPANDER-SPACER OF THE NONBOTTOMING SELF-EXPANDING TYPE HAVING OPENINGS THEREIN FOR PASSAGE OF OIL THERETHROUGH, SAID EXPANDER-SPACER BEING GENERALLY CIRCULAR WITH RADIAL CORRUGATIONS PROVIDING ALTERNATE INNER AND OUTER SERIES OF CROWNS AND GENERALLY RADIAL FLEXING PORTIONS INTERMEDIATE SAID CROWNS, SAID INTERMEDIATE RADIAL FLEXING PORTIONS INDIVIDUALLY COMPRISING A SINGLE LEG INTEGRAL WITH SAID CROWNS AND BEING AXIALLY OFFSET FROM THE CENTER LINE OF SAID EXPANDER-SPACER TOWARDS THE UPPER LONGITUDINAL EDGE THEREOF TO PROVIDE MAXIMUM CIRCUMFERENTIAL EXPANSION FORCES THEREALONG, SAID INNER CROWNS EACH HAVING A SUPPORTING PAD PORTION INTEGRAL WITH THE BOTTOM THEREOF AND EXTENDING RADIALLY OUTWARD AT A RIGHT ANGLE THEREFROM AND TERMINATING WITH AN OUTER PERIPHERAL EDGE CURVED TO FIT THE CYLINDER WALL OF THE ENGINE SO THAT SAID PADS TOGETHER FORM A CIRCUMFERENTIAL OIL SCRAPING STRUCTURE AT THE LOWER SIDE OF THE OIL GROOVE,
Claim 2
Dependent Claim
157 words
AN OIL RING ASSEMBLY FOR USE IN THE OIL GROOVE OF A PISTON IN AN INTERNAL COMBUSTION ENGINE INCLUDING IN COMBINATION, A ONE-PIECE EXPANDER-SPACER OF THE NONBOTTOMING SELF-EXPANDING TYPE HAVING OPENINGS THEREIN FOR PASSAGE OF OIL THERETHROUGH, SAID EXPANDER-SPACER BEING GENERALLY CIRCULAR WITH RADIAL CORRUGATIONS PROVIDING ALTERNATE INNER AND OUTER SERIES OF CROWNS AND GENERALLY RADIAL FLEXING PORTIONS INTERMEDIATE SAID CROWNS, SAID INTERMEDIATE RADIAL FLEXING PORTIONS INDIVIDUALLY COMPRISING A SINGLE LEG INTEGRAL WITH SAID CROWNS AND BEING AXIALLY OFFSET FROM THE CENTER LINE OF SAID EXPANDER-SPACER TOWARDS THE UPPER LONGITUDINAL EDGE THEREOF TO PROVIDE MAXIMUM CIRCUMFERENTIAL EXPANSION FORCES THEREALONG, SAID INNER CROWNS EACH HAVING A SUPPORTING PAD PORTION INTEGRAL WITH THE BOTTOM THEREOF AND EXTENDING RADIALLY OUTWARD AT A RIGHT ANGLE THEREFROM AND TERMINATING WITH AN OUTER PERIPHERAL EDGE CURVED TO FIT THE CYLINDER WALL OF THE ENGINE SO THAT SAID PADS TOGETHER FORM A CIRCUMFERENTIAL OIL SCRAPING STRUCTURE AT THE LOWER SIDE OF THE OIL GROOVE,
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) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |