Patent US4696266A successfully refreshed from Google Patents.
US4696266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Decompression apparatus for engines
Assignee: Subaru Corp
•
Filing: 1986-06-27
•
Granted: 1987-09-29
•
Expires: 2006-06-27
Abstract
Abstract A decompression apparatus for an engine has a valve releasing lever comprising a shaft and a weight secured to the shaft. The shaft forms a semicircular cam at its one end. Recesses are provided on a camshaft and a bore of a cam gear, and a key is engaged in both recesses to secure the camshaft and the cam gear. The semicircular cam is rotatively supported on a flat bottom notch provided on the camshaft close to an actuating cam, and the shaft is rotatively inserted in a hole provided in the key.
Inventors
- 👤 Mitsuyoshi Harada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:59
CPC Classifications
F; F01; F01L; F01L13/00; F01L13/08; F01L13/085
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
78 words
In a decompression apparatus for an engine having a camshaft, a cam gear having a longitudinal bore along a central axis thereof, and a tappet engaging with an actuating cam on the camshaft, the improvement comprising: a releasing lever comprising a shaft and a weight secured to the shaft; the shaft forming a semicircular cam at one end; the camshaft having a first recess in a longitudinal direction; the cam gear having a second recess adjacent the bore;
Claim 2
Dependent Claim
78 words
In a decompression apparatus for an engine having a camshaft, a cam gear having a longitudinal bore along a central axis thereof, and a tappet engaging with an actuating cam on the camshaft, the improvement comprising: a releasing lever comprising a shaft and a weight secured to the shaft; the shaft forming a semicircular cam at one end; the camshaft having a first recess in a longitudinal direction; the cam gear having a second recess adjacent the bore;
Claim 3
Dependent Claim
57 words
a bearing member for engaging with the first and second recesses and for rotatably supporting the shaft; a flat bottom notch for supporting said semicircular cam and being provided on the camshaft close to the actuating cam; and the semicircular cam being arranged to project beyond a periphery of the actuating cam when engine operation is stopped.
Claim 4
Dependent Claim
57 words
a bearing member for engaging with the first and second recesses and for rotatably supporting the shaft; a flat bottom notch for supporting said semicircular cam and being provided on the camshaft close to the actuating cam; and the semicircular cam being arranged to project beyond a periphery of the actuating cam when engine operation is stopped.
Claim 5
Dependent Claim
23 words
The apparatus according to claim 1 wherein the weight is provided within a hollow formed on a side surface of the cam gear.
Claim 6
Dependent Claim
21 words
The apparatus according to claim 2 wherein the weight is secured to the shaft approximately at center in the longitudinal direction.
Claim 7
Dependent Claim
21 words
The apparatus according to claim 1 wherein one end of the camshaft is employed for an output shaft of the engine.
References Cited (Backward Citations)
US3362390A
Cited
US3381676A
Cited
US3496922A
Cited
US3511219A
Cited
US3620203A
Cited
JPS507381A
Cited
US3901199A
Cited
GB1445780A
Cited
US3981289A
Cited
US4440126A
Cited
US4615312A
Cited
US4610227A
Cited
EP0167691A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-09-28 | 1991-03-30 | 1991-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-09-28 | 1995-03-30 | 1995-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-09-28 | 1999-03-30 | 1999-09-29 | $7700.00 | Window Closed / Lapsed |