US4655176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable ratio roller rocker for internal combustion engines
Assignee: Individual
•
Filing: 1985-12-05
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Granted: 1987-04-07
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Expires: 2005-12-05
Abstract
Abstract This roller rocker is designed to change the valve lifter rocker arm leverage of an engine to increase the engine's performance. Primarily, it consists of a sliding pushrod seat, and a threaded Allen bolt is threaded into an opening in the sliding pushrod seat for traversing the seat in an opening in the body of the rocker arm. The design also includes a locking ring to retain the bolt, and an Allen set screw is received in the arm to lock the Allen bolt in its setting.
Inventors
- 👤 Kevin A. Sheehan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:46
CPC Classifications
F; F01; F01L; F01L13/00; F01L13/0015; F01L13/0021; F01L1/00; F01L1/12; F01L1/18; F01L1/181
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
68 words
An adjustable ratio roller rocker for internal combustion engines, comprising, a body, a sliding pushrod seat received in said body, a bolt received in said sliding pushrod seat, a pushrod received in said sliding pushrod seat and said sliding pushrod seat includes a threaded opening that receives said bolt, and the rotation of said bolt causes said sliding pushrod seat to traverse a recessed opening in said body.
Claim 2
Dependent Claim
68 words
An adjustable ratio roller rocker for internal combustion engines, comprising, a body, a sliding pushrod seat received in said body, a bolt received in said sliding pushrod seat, a pushrod received in said sliding pushrod seat and said sliding pushrod seat includes a threaded opening that receives said bolt, and the rotation of said bolt causes said sliding pushrod seat to traverse a recessed opening in said body.
Claim 3
Dependent Claim
65 words
An adjustable ratio roller rocker for internal combustion engines, comprising, a body, a sliding pushrod seat received in said body, a bolt received in said sliding pushrod seat, a pushrod received in said sliding pushrod seat and an annular groove is provided in the outer periphery of said bolt and removably receives a C-clip that retains said bolt in the recessed opening in said body.
Claim 4
Dependent Claim
65 words
An adjustable ratio roller rocker for internal combustion engines, comprising, a body, a sliding pushrod seat received in said body, a bolt received in said sliding pushrod seat, a pushrod received in said sliding pushrod seat and an annular groove is provided in the outer periphery of said bolt and removably receives a C-clip that retains said bolt in the recessed opening in said body.
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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) | 1990-04-06 | 1990-10-06 | 1991-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-06 | 1994-10-06 | 1995-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-06 | 1998-10-06 | 1999-04-07 | $7700.00 | Window Closed / Lapsed |