Patent US3379186A successfully refreshed from Google Patents.
US3379186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine with polyhedral pistons and renewable straight seals
Assignee: Individual
•
Filing: 1966-09-08
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Granted: 1968-04-23
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Expires: 1986-09-08
Abstract
No abstract record available.
Inventors
- 👤 Oscar A Yost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:18
CPC Classifications
F; F16; F16J; F16J10/00; F16J10/02; F02; F02F; F02F1/00; F02F1/18; F02F1/183; F02F11/00; F16J9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
AN ENGINE COMPRISING A RIGID BODY HAVING A PLURALITY OF INTEGRALLY JOINED FLAT EXTERIOR WALLS AND FLAT INTERIOR PARTITIONS DEFINING A PLURALITY OF FLAT SIDED COMPARTMENTS, EACH OF SAID COMPARTMENTS BEING POLYGONAL IN CROSS SECTION FOR MOVABLY SUPPORTING CORRESPONDINGLY SHAPED PISTONS, AT LEAST ONE OF SAID FLAT EXTERIOR WALLS HAS AT LEAST ONE LONGITUDINALLY EXTENDING RECESS ON ITS INNER SIDE, AND A LEAST ONE STRAIGHT SEALING BAR FOR SEALING A SIDE OF EACH PISTON DISPOSED IN SAID RECESS, SAID BAR EXTENDING LONGITUDINALLY OF SAID BODY AND CROSSING ALL OF SAID COMPARTMENTS, SO THAT THE SEALING BAR CAN BE MOVED LONGITUDINALLY INTO AND OUT OF SAID BODY WITHOUT DISTURBING ANY PISTON.
Claim 2
Dependent Claim
110 words
AN ENGINE COMPRISING A RIGID BODY HAVING A PLURALITY OF INTEGRALLY JOINED FLAT EXTERIOR WALLS AND FLAT INTERIOR PARTITIONS DEFINING A PLURALITY OF FLAT SIDED COMPARTMENTS, EACH OF SAID COMPARTMENTS BEING POLYGONAL IN CROSS SECTION FOR MOVABLY SUPPORTING CORRESPONDINGLY SHAPED PISTONS, AT LEAST ONE OF SAID FLAT EXTERIOR WALLS HAS AT LEAST ONE LONGITUDINALLY EXTENDING RECESS ON ITS INNER SIDE, AND A LEAST ONE STRAIGHT SEALING BAR FOR SEALING A SIDE OF EACH PISTON DISPOSED IN SAID RECESS, SAID BAR EXTENDING LONGITUDINALLY OF SAID BODY AND CROSSING ALL OF SAID COMPARTMENTS, SO THAT THE SEALING BAR CAN BE MOVED LONGITUDINALLY INTO AND OUT OF SAID BODY WITHOUT DISTURBING ANY PISTON.
References Cited (Backward Citations)
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US1728514A
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US1761123A
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US1998441A
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US2064756A
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US2224475A
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US2884290A
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US3068850A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |