Patent US3175544A successfully refreshed from Google Patents.
US3175544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal combustion engines
Assignee: Individual
•
Filing: 1964-05-08
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Granted: 1965-03-30
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Expires: 1984-05-08
Abstract
No abstract record available.
Inventors
- 👤 Hughes James Willis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:55
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/16; F02B75/18; F02B75/22; F02B75/222; F02B2075/1804; F02B2075/1816; F02B2275/00; F02B2275/34; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18208; Y10T74/18248; Y10T74/1836; Y10T74/18408
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
IN AN ENGINE, THE COMBINATION OF A CYLINDER BLOCK INCLUDING AT LEAST TWO CYLINDERS CROSSING EACH OTHER AT AN INTERSECTION POINT INTERMEDIATE THEIR ENDS, AT LEAST TWO PISTONS RECIPROCABLE IN THE RESPECTIVE CYLINDERS FROM ONE SIDE OF THE INTERSECTION POINT TO THE OTHER WHEREBY PATHS OF RECIPROCATION OF SAID PISTONS CROSS EACH OTHER AT THE INTERSECTION POINT, A PAIR OF COAXIAL CRANK SHAFTS DISPOSED EXTERIORLY AT OPPOSITE SIDES OF SAID BLOCK AND HAVING THEIR AXIS OF ROTATION NORMAL TO SAID CYLINDERS, SAID INTERSECTION POINT LYING ON THE AXIS OF ROTATION OF SAID CRANKSHAFTS, SAID CRANKSHAFTS INCLUDING A PAIR OF COAXIAL CRANK PINS DISPOSED AT OPPOSITE SIDES OF THE CYLINDER BLOCK, AT LEAST TWO WRISTS PINS PROVIDED ON THE RESPECTIVE PISTONS AND PROJECTING OUTWARDLY THROUGH LONGITUDINAL SLOTS IN SAID CYLINDERS TO THE OPPOSITE SIDES OF THE BLOCK, A PAIR OF ROTATABLE MOTION COORDINATING ELEMENTS CARRIED BY THE RESPECTIVE CRANK PINS AND HAVING SAID WRISTS PINS CONNECTED THERETO AT POINTS SPACED AND EQUIDISTANT FROM THE CRANK PINS, AND FLUID PRESSURE MENS
Claim 2
Dependent Claim
169 words
IN AN ENGINE, THE COMBINATION OF A CYLINDER BLOCK INCLUDING AT LEAST TWO CYLINDERS CROSSING EACH OTHER AT AN INTERSECTION POINT INTERMEDIATE THEIR ENDS, AT LEAST TWO PISTONS RECIPROCABLE IN THE RESPECTIVE CYLINDERS FROM ONE SIDE OF THE INTERSECTION POINT TO THE OTHER WHEREBY PATHS OF RECIPROCATION OF SAID PISTONS CROSS EACH OTHER AT THE INTERSECTION POINT, A PAIR OF COAXIAL CRANK SHAFTS DISPOSED EXTERIORLY AT OPPOSITE SIDES OF SAID BLOCK AND HAVING THEIR AXIS OF ROTATION NORMAL TO SAID CYLINDERS, SAID INTERSECTION POINT LYING ON THE AXIS OF ROTATION OF SAID CRANKSHAFTS, SAID CRANKSHAFTS INCLUDING A PAIR OF COAXIAL CRANK PINS DISPOSED AT OPPOSITE SIDES OF THE CYLINDER BLOCK, AT LEAST TWO WRISTS PINS PROVIDED ON THE RESPECTIVE PISTONS AND PROJECTING OUTWARDLY THROUGH LONGITUDINAL SLOTS IN SAID CYLINDERS TO THE OPPOSITE SIDES OF THE BLOCK, A PAIR OF ROTATABLE MOTION COORDINATING ELEMENTS CARRIED BY THE RESPECTIVE CRANK PINS AND HAVING SAID WRISTS PINS CONNECTED THERETO AT POINTS SPACED AND EQUIDISTANT FROM THE CRANK PINS, AND FLUID PRESSURE MENS
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |