US3185137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve mounting and sealing structure
Assignee: Continental Aviation and Engineering Corp
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Filing: 1963-06-26
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Granted: 1965-05-25
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Expires: 1983-06-26
Abstract
No abstract record available.
Inventors
- 👤 Herman T Dreyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:02
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/04; F02B75/044; Y; Y10; Y10T; Y10T137/00; Y10T137/7504; Y10T137/7613
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN AN INTERNAL COMBUSTION ENGINE PISTON HAVING FIRST AND SECOND COAXIAL PARTS MOVABLE AXIALLY RELATIVE TO ONE ANOTHER IN THE DIRECTION OF RECIPROCATION OF THE PISTON AND HAVING A PRESSURE FLUID CHAMBER BETWEEN SAID PARTS WHICH VARIES IN INTERNAL VOLUME AS A RESULT OF SAID RELATIVE MOVEMENT, THAT IMPROVEMENT WHICH COMPRISES ONE OF SAID PARTS HAVING A FIRST PASSAGE THEREIN ADAPTED TO COMMUNICATE WITH THE CHAMBER AND A BORE EXTENDING INTO SAID ONE PART FROM AN EXTERIOR SURFACE THEREOF AND INTERSECTING SAID FIRST PASSAGE, A VALVE CASING FITTED IN SAID BORE AND HAVING A PASSAGE THEREIN REGISTERING WITH SAID FIRST PASSAGE, A TUBULAR MEMBER HAVING ONE PORTION THEREOF SECURED IN SAID FIRST PASSAGE AND ANOTHER PORTION THEREOF SECURED IN SAID CASING PASSAGE FOR ANCHORING SAID VALVE CASING IN SAID BORE AND FOR SEALING FLUID TIGHT THE SPACE BETWEEN SAID MEMBER AND SAID PASSAGES, SAID TUBULAR MEM-
Claim 2
Dependent Claim
146 words
IN AN INTERNAL COMBUSTION ENGINE PISTON HAVING FIRST AND SECOND COAXIAL PARTS MOVABLE AXIALLY RELATIVE TO ONE ANOTHER IN THE DIRECTION OF RECIPROCATION OF THE PISTON AND HAVING A PRESSURE FLUID CHAMBER BETWEEN SAID PARTS WHICH VARIES IN INTERNAL VOLUME AS A RESULT OF SAID RELATIVE MOVEMENT, THAT IMPROVEMENT WHICH COMPRISES ONE OF SAID PARTS HAVING A FIRST PASSAGE THEREIN ADAPTED TO COMMUNICATE WITH THE CHAMBER AND A BORE EXTENDING INTO SAID ONE PART FROM AN EXTERIOR SURFACE THEREOF AND INTERSECTING SAID FIRST PASSAGE, A VALVE CASING FITTED IN SAID BORE AND HAVING A PASSAGE THEREIN REGISTERING WITH SAID FIRST PASSAGE, A TUBULAR MEMBER HAVING ONE PORTION THEREOF SECURED IN SAID FIRST PASSAGE AND ANOTHER PORTION THEREOF SECURED IN SAID CASING PASSAGE FOR ANCHORING SAID VALVE CASING IN SAID BORE AND FOR SEALING FLUID TIGHT THE SPACE BETWEEN SAID MEMBER AND SAID PASSAGES, SAID TUBULAR MEM-
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) | 1968-05-24 | 1968-11-23 | 1969-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-24 | 1972-11-23 | 1973-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-24 | 1976-11-23 | 1977-05-25 | $7700.00 | Window Closed / Lapsed |