US3861225A
Expired / Lapsed
US
⏱️ 0.0 years remaining
External fine timing adjustment
Assignee: Prestolite Electric Inc
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Filing: 1973-12-19
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Granted: 1975-01-21
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Expires: 1993-12-19
Abstract
Abstract An ignition tuning adjustment means is disclosed which rotates the distributor housing and assembly by means of a bifurcated arm affixed to the distributor housing, whereby an adjustable cam is enabled to move the arm by small angular increments by the use of simple hand tools, after which, the angular adjustment is made permanent by a locking means. A limiting means for angular rotation is provided for the cam to prevent more than a predetermined angular movement.
Inventors
- 👤 Richard W Mattson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:16
CPC Classifications
F; F02; F02P; F02P5/00; F02P5/02; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18288; Y10T74/21; Y10T74/2101; Y10T74/2102; Y10T74/2104; Y10T74/2107
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
93 words
In an ignition distributor rotatably mounted in the block of an engine whose timing is to be adjusted, a bifurcated arm affixed to the distributor adjacent the engine block, a stud rotatably mounted on the engine block including a cam affixed thereto to cooperate with the bifurcated portion of the arm to move the arm angularly through a predetermined angular movement, means on the stud to cooperate with a hand tool to control the angular movement of the arm, and means cooperating with the stud to lock the parts in a fixed position.
Claim 2
Dependent Claim
93 words
In an ignition distributor rotatably mounted in the block of an engine whose timing is to be adjusted, a bifurcated arm affixed to the distributor adjacent the engine block, a stud rotatably mounted on the engine block including a cam affixed thereto to cooperate with the bifurcated portion of the arm to move the arm angularly through a predetermined angular movement, means on the stud to cooperate with a hand tool to control the angular movement of the arm, and means cooperating with the stud to lock the parts in a fixed position.
Claim 3
Dependent Claim
22 words
The device defined in claim 1, further characterized by a means limiting the rotation of the cam with reference to the arm.
Claim 4
Dependent Claim
20 words
The device defined in claim 1 further characterized by providing a resilient means for locking the parts in fixed position.
Claim 5
Dependent Claim
20 words
The device defined in claim 1 further characterized by providing an adjustable means for affixing the arm to the distributor.
References Cited (Backward Citations)
US2018893A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |