Patent US3258992A successfully refreshed from Google Patents.
US3258992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reciprocating piston engines
Assignee: Individual
•
Filing: 1963-02-15
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Granted: 1966-07-05
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Expires: 1983-02-15
Abstract
No abstract record available.
Inventors
- 👤 John L Hittell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:57
CPC Classifications
F; F01; F01B; F01B1/00; F01B1/06; F01B1/062; F02; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/22; F02B75/222; F01B9/00; F01B9/04; F01B9/06; F01B2009/061; F01B2009/063; F02B2075/1804; F02B2075/1816; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18248; Y10T74/21; Y10T74/2173; Y10T74/2183
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
IN A MECHANISM FOR CONVERTING RECIPROCAL PISTON MOTION TO ROTARY SHAFT MOTION AND VICE VERSA, A CRANKPIN CARRIED IN PARALLED OFFSET RELATION TO THE SHAFT, ECCENTRIC MEANS ROTATABLY JOURNALED ON THE CRANKPIN AND INCLUDING A FIRST ECCENTRIC ANNULAR SURFACE ROTATABLY JOURNALING A FIRST PISTON ASSEMBLY HAVING A COMBINED MASS ACTING AT ONE POINT AND A SECOND ECCENTRIC ANNULAR SURFACE AXIALLY OFFSET WITH RESPECT TO THE FIRST ECCENTRIC ANNULAR SURFACE ROTATABLY JOURNALING A SECOND PISTON ASSEMBLY HAVING A COMBINED MASS ACTING AT ANOTHER POINT AND COUNTERWEIGHT MEANS FIXEDLY CARRIED BY SAID ECCENTRIC MEANS POSITIONED AXIALLY ADJACENT AND DIAMETRICALLY OPPOSITE SAID POINT HAVING AT LEAST ONE MASS ACTING AT AT LEAST A THIRD POINT SUCH THAT SAID MASSES HAVE A COMBINED EFFECTIVE MASS ACTING AT THE CENTER OF GRAVITY OF THE CRANKPIN DURING ALL PHASES OF OPERATION.
Claim 2
Dependent Claim
135 words
IN A MECHANISM FOR CONVERTING RECIPROCAL PISTON MOTION TO ROTARY SHAFT MOTION AND VICE VERSA, A CRANKPIN CARRIED IN PARALLED OFFSET RELATION TO THE SHAFT, ECCENTRIC MEANS ROTATABLY JOURNALED ON THE CRANKPIN AND INCLUDING A FIRST ECCENTRIC ANNULAR SURFACE ROTATABLY JOURNALING A FIRST PISTON ASSEMBLY HAVING A COMBINED MASS ACTING AT ONE POINT AND A SECOND ECCENTRIC ANNULAR SURFACE AXIALLY OFFSET WITH RESPECT TO THE FIRST ECCENTRIC ANNULAR SURFACE ROTATABLY JOURNALING A SECOND PISTON ASSEMBLY HAVING A COMBINED MASS ACTING AT ANOTHER POINT AND COUNTERWEIGHT MEANS FIXEDLY CARRIED BY SAID ECCENTRIC MEANS POSITIONED AXIALLY ADJACENT AND DIAMETRICALLY OPPOSITE SAID POINT HAVING AT LEAST ONE MASS ACTING AT AT LEAST A THIRD POINT SUCH THAT SAID MASSES HAVE A COMBINED EFFECTIVE MASS ACTING AT THE CENTER OF GRAVITY OF THE CRANKPIN DURING ALL PHASES OF OPERATION.
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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) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |