Patent US3942488A successfully refreshed from Google Patents.
US3942488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cam transmission internal combustion engine
Assignee: Individual
•
Filing: 1974-04-08
•
Granted: 1976-03-09
•
Expires: 1994-04-08
Abstract
Abstract A power shaft is journalled within a stationary housing having a cylinder formed therein. The axis of the cylinder is radial to the axis of the power shaft. A lever arm pivotally carried by the housing is linked by a connecting rod to a piston slidably disposed within the cylinder. A crankplate rotatable with the power shaft supports a cam follower which intermittently interacts with the camming surface on the lever arm to urge the piston through the intake and compression cycles. During the power stroke of the piston, the lever arm pushes against the cam follower, causing rotation of the crankplate. In an alternate embodiment, a wrist pin having a radially extending rod is rotatably carried by the crankplate. Gear means provide timed rotation of the rod to periodically contact and interact with the piston. Either embodiment may include a plurality of radially spaced pistons and additional respective cam followers or wrist pins. Each cam follower or wrist pin may receive several power impulses per revolution.
Inventors
- 👤 Howard L. Phillips
- 👤 Maurice J. Moriarty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:54
CPC Classifications
F; F01; F01B; F01B13/00; F01B13/04; F01B13/06; F01B13/061; F02; F02B; F02B57/00; F02B57/08; F02B57/10; F02B75/00; F02B75/16; F02B75/18; F02B75/22; F02B1/00; F02B1/02; F02B1/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
145 words
An internal combustion engine comprising: a. a stationary housing; b. a power shaft journalled for rotation about the longitudinal axis thereof within said housing; c. a cylinder formed in said housing and having a longitudinal axis radially perpendicular to the axis of said power shaft, said cylinder having a closed inward end and an open outward end; d. a piston slidably disposed for reciprocal movement within said cylinder; e. a drive plate carried by said power shaft; f. a cam follower carried by said drive plate; g. a lever arm pivotally connected at one end thereof to said stationary housing and extending circumferentially therefrom across the open end of said cylinder; h. a cam profile carried by said lever arm for periodic interaction with said cam follower; and i. a connecting rod pivotally connected at respective ends to said piston and to said lever arm.
Claim 2
Dependent Claim
145 words
An internal combustion engine comprising: a. a stationary housing; b. a power shaft journalled for rotation about the longitudinal axis thereof within said housing; c. a cylinder formed in said housing and having a longitudinal axis radially perpendicular to the axis of said power shaft, said cylinder having a closed inward end and an open outward end; d. a piston slidably disposed for reciprocal movement within said cylinder; e. a drive plate carried by said power shaft; f. a cam follower carried by said drive plate; g. a lever arm pivotally connected at one end thereof to said stationary housing and extending circumferentially therefrom across the open end of said cylinder; h. a cam profile carried by said lever arm for periodic interaction with said cam follower; and i. a connecting rod pivotally connected at respective ends to said piston and to said lever arm.
Claim 3
Dependent Claim
144 words
An internal combustion engine comprising: a. a stationary housing; b. a power shaft journalled for rotation about the longitudinal axis thereof within said housing; c. a cylinder formed in said housing and having an axis radially perpendicular to said shaft; d. a piston slidably disposed for limited reciprocal movement within said cylinder; e. a drive plate carried by said power shaft and extending radially therefrom; f. a wrist pin journalled for rotation within said drive plate and having the axis thereof parallel to said power shaft; g. a rod extending radially from said wrist pin and rotatable therewith to periodically contact said piston and urge said piston toward said shaft; h. a circular gear fixed to said housing concentric with said shaft; and i. a pinion gear rotatable with said wrist pin and engaged with said circular gear for timed rotation of said rod.
Claim 4
Dependent Claim
144 words
An internal combustion engine comprising: a. a stationary housing; b. a power shaft journalled for rotation about the longitudinal axis thereof within said housing; c. a cylinder formed in said housing and having an axis radially perpendicular to said shaft; d. a piston slidably disposed for limited reciprocal movement within said cylinder; e. a drive plate carried by said power shaft and extending radially therefrom; f. a wrist pin journalled for rotation within said drive plate and having the axis thereof parallel to said power shaft; g. a rod extending radially from said wrist pin and rotatable therewith to periodically contact said piston and urge said piston toward said shaft; h. a circular gear fixed to said housing concentric with said shaft; and i. a pinion gear rotatable with said wrist pin and engaged with said circular gear for timed rotation of said rod.
References Cited (Backward Citations)
US717445A
Cited
US1095074A
Cited
US1544482A
Cited
US1853563A
Cited
US1827094A
Cited
US1817375A
Cited
CH239818A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-09 | 1979-09-08 | 1980-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-09 | 1983-09-08 | 1984-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-09 | 1987-09-08 | 1988-03-09 | $7700.00 | Window Closed / Lapsed |