Patent US4086887A successfully refreshed from Google Patents.
US4086887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rocker arm shaft support
Assignee: Individual
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Filing: 1977-02-09
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Granted: 1978-05-02
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Expires: 1997-02-09
Abstract
Abstract A support platform for mounting a rocker arm shaft in an internal combustion engine comprises an elongated base element which fits on the top surface of the cylinder head of the engine, support pads which are mounted to the base element intermediate its ends at spaced intervals, and end blocks which are attached to each longitudinal end of the base element. The rocker arm shaft is mounted in transverse bores which extend through the support pads and end blocks, and is attached to the support pads by bolts which pass through vertical bores in the support pads, the rocker arm shaft, and the base element into registry with threaded holes in the cylinder head. The end blocks engage the rocker arm shaft at each of its extremities, outwardly of the outward most rocker arm, for preventing deflection of the end portions of the rocker arm shaft upon loading of the rocker arms.
Inventors
- 👤 Alan G. Schoonover
- 👤 Gary E. Ericksen
- 👤 Kenneth E. Heard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:26
CPC Classifications
F; F01; F01L; F01L1/00; F01L1/12; F01L1/18; F01L1/181
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
120 words
A support platform for mounting internal combustion engine rocker arms of the type carried rotatably on a transverse shaft mounted outwardly of the cylinder head of the engine, the platform comprising; (a) a base element configured for being positioned on top of the cylinder head, (b) support pads mounted to the base element, the support pads having transverse bores extending therethrough, which are arranged for receiving the rocker arm shaft, and (c) end blocks attached to each end of the base element, the end blocks having transverse bores passing therethrough for engaging the rocker arm shaft, and the end blocks being located on the base element such that they engage the rocker arm shaft outwardly of the outermost rocker arm.
Claim 2
Dependent Claim
120 words
A support platform for mounting internal combustion engine rocker arms of the type carried rotatably on a transverse shaft mounted outwardly of the cylinder head of the engine, the platform comprising; (a) a base element configured for being positioned on top of the cylinder head, (b) support pads mounted to the base element, the support pads having transverse bores extending therethrough, which are arranged for receiving the rocker arm shaft, and (c) end blocks attached to each end of the base element, the end blocks having transverse bores passing therethrough for engaging the rocker arm shaft, and the end blocks being located on the base element such that they engage the rocker arm shaft outwardly of the outermost rocker arm.
Claim 3
Dependent Claim
264 words
A support platform for mounting internal combustion engine rocker arms of the type carried rotatably on a transverse rocker arm shaft mounted outwardly of the cylinder head of the engine, the platform comprising: (a) an elongated base element configured for being positioned on top of the cylinder head, the base having a plurality of openings passing therethrough at intervals spaced to coincide with the spacing of openings which are provided in the rocker shaft for mounting the rocker arm shaft to the engine, (b) support pads mounted to the base elements in alignment with each of the openings therein, the support pads having transverse bores passing therethrough which are arranged for receiving the rocker arm shaft, and the support pads having vertical bores passing therethrough which are coaxial with the openings in the base, (c) end blocks attached to each end of the base element, the end blocks having transverse bores extending therethrough which are configured for engaging the extremities of the rocker arm shaft outwardly of each outermost rocker arm, preventing deflection of the rocker arm shaft upon loading of the outermost rocker arms, and (d) threaded fasteners configured for passing through each of the aligned vertical openings in the support pads, the openings in the rocker arm shaft, and the openings in the base into registry with threaded openings which are provided in the cylinder head for the purpose of mounting the rocker arms, for attaching the support pads and the base element to the cylinder head and for fixing the rocker arm shaft irrotatably in the openings in the support pads.
Claim 4
Dependent Claim
264 words
A support platform for mounting internal combustion engine rocker arms of the type carried rotatably on a transverse rocker arm shaft mounted outwardly of the cylinder head of the engine, the platform comprising: (a) an elongated base element configured for being positioned on top of the cylinder head, the base having a plurality of openings passing therethrough at intervals spaced to coincide with the spacing of openings which are provided in the rocker shaft for mounting the rocker arm shaft to the engine, (b) support pads mounted to the base elements in alignment with each of the openings therein, the support pads having transverse bores passing therethrough which are arranged for receiving the rocker arm shaft, and the support pads having vertical bores passing therethrough which are coaxial with the openings in the base, (c) end blocks attached to each end of the base element, the end blocks having transverse bores extending therethrough which are configured for engaging the extremities of the rocker arm shaft outwardly of each outermost rocker arm, preventing deflection of the rocker arm shaft upon loading of the outermost rocker arms, and (d) threaded fasteners configured for passing through each of the aligned vertical openings in the support pads, the openings in the rocker arm shaft, and the openings in the base into registry with threaded openings which are provided in the cylinder head for the purpose of mounting the rocker arms, for attaching the support pads and the base element to the cylinder head and for fixing the rocker arm shaft irrotatably in the openings in the support pads.
Claim 5
Dependent Claim
32 words
The support platform of claim 2 wherein there are eight rocker arms and there are four support pads, one of the support pads being located between each alternate pair of rocker arms.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-05-01 | 1981-10-31 | 1982-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-01 | 1985-10-31 | 1986-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-01 | 1989-10-31 | 1990-05-02 | $7700.00 | Window Closed / Lapsed |