US3563222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perfectly balanced vibrationless rotation-reciprocation devices of crankshaft rotary motion system
Assignee: Individual
•
Filing: 1969-07-08
•
Granted: 1971-02-16
•
Expires: 1989-07-08
Abstract
Abstract A perfectly balanced rotation-reciprocation device providing a rod rotatably supported by a crank pin of a crankshaft through an eccentric collar and cooperating means to produce linear reciprocating motion of the rod, the device further providing balance weight means to theoretically balance the caused unbalance forces irrespective to the fact that the balance weights are secured asymmetrically to the longitudinal axis of the rod.
Inventors
- 👤 Kenjiro Ishida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:38
CPC Classifications
F; F16; F16F; F16F15/00; F16F15/22; F16F15/26; F16F15/264; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18248; Y10T74/21; Y10T74/2173; Y10T74/2183
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
129 words
A rotation-reciprocation device claimed in claim 1, wherein said means to cooperate the eccentric collar and the crankshaft comprising a first gear secured to the eccentric collar, a first and a second shafts rotatably supported by the casing and being parallel to the axis of the crankshaft, an eccentric gear having the same number of teeth with that in the first gear and the amount of eccentricity -l and being secured to the first shaft and meshing with the first gear, a second gear secured to the first shaft, a third gear supported by the second shaft and meshing with the second gear, a fourth gear secured to the crankshaft and meshing with the third gear and having the same number of teeth with that in the second gear.
Claim 2
Dependent Claim
67 words
A rotation-reciprocation device claimed in claim 1, wherein said means to cooperate the eccentric collar and the crankshaft comprising planet gear means having pitch circle diameter 2l and being secured to the eccentric collar to rotate on the crankpin, and internal gear means secured to the casing to be concentric to the crankshaft axis and meshing with the planet gear means and having pitch circle diameter 4l.
Claim 3
Dependent Claim
133 words
A rotation-reciprocation device claimed in any of preceding claims in which said working means connected to one end of the rod being piston means, and the device further comprising cylinder means accommodating said piston means and defining combustion chamber between the piston means, said piston means having inlet, outlet and scavenging passage means and being connected to the casing, spark plug means mounted to the cylinder means, seal means secured to the casing and slidably engaging said rod to define a further space in the cylinder means between said piston and said casing, and said inlet means and one end of the scavenging passage means being communicated to said further space whereby the device is formed as two-cycle internal combustion engine and the further space is formed as precompression chamber of the engine.
References Cited (Backward Citations)
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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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |