Patent US1601168A successfully refreshed from Google Patents.
US4098233A
Expired / Lapsed
US
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Timing gauge for diesel engines
Assignee: Individual
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Filing: 1977-05-02
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Granted: 1978-07-04
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Expires: 1997-05-02
Abstract
Abstract A gauge for use in connection with the timing of a diesel engine and adapted to measure the spacing between an injector body surface and a surface of the plunger of the injector, the surfaces being parallel, the gauge consisting of a gauge body restable on the plunger surface and a gauge stem restable on the body surface and extending slidably through the gauge body parallel to the direction of plunger movement, the stem having a planar surface normal to its axis which will be moved into coplanar relation to a corresponding planar surface of the gauge body when the spacing being measured is correctly adjusted, the coplanar relation of these surfaces, or any lack thereof, being readily detectable by touch when passing a fingertip thereover.
Inventors
- 👤 Darrell B. Boyd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:50
CPC Classifications
F; F02; F02M; F02M65/00; F02M39/00; F02M57/00; F02M57/02; F02M57/022; F02M57/023; F02M59/00; F02M59/44; F02M59/48; F02B; F02B3/00; F02B3/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
284 words
A timing gauge for an injector of a diesel engine, said injector including a body having an outwardly facing external surface and an operating plunger projecting outwardly from said body and being movable normally to said body surface in the operation of said injector, the projecting portion of said plunger having an outwardly facing surface parallel to said body surface, the correct timing of said injector being indicated when the spacing between said body and plunger surfaces equals a specified distance, denoted the "timer spacing" of said injector, when the piston operable in the engine cylinder associated with that injector is disposed at a specified point in its stroke, said gauge being usuable when said piston is at said specified point in its stroke, and comprising: a. a stem restable at one end on said body surface to extend outwardly therefrom parallel to and adjacent said plunger, and having an outer end surface at right angles to the axis thereof, and b. a gauge body provided with an axial bore slidably mounted on said stem for movement therealong and having end surfaces at right angles to said stem, the inner end surface of said body being restable on said plunger surface, and the projection of said stem from said injector body surface being equal to the sum of said specified timer spacing and the axial length of said gauge body, whereby when the timer spacing of said injector is properly set, the outer end surfaces of said gauge stem and body will be disposed accurately in coplanar relation, the existence of this coplanar relation, or any lack of it, being detected by passing a fingertip over said outer end surfaces of said gauge members.
Claim 2
Dependent Claim
284 words
A timing gauge for an injector of a diesel engine, said injector including a body having an outwardly facing external surface and an operating plunger projecting outwardly from said body and being movable normally to said body surface in the operation of said injector, the projecting portion of said plunger having an outwardly facing surface parallel to said body surface, the correct timing of said injector being indicated when the spacing between said body and plunger surfaces equals a specified distance, denoted the "timer spacing" of said injector, when the piston operable in the engine cylinder associated with that injector is disposed at a specified point in its stroke, said gauge being usuable when said piston is at said specified point in its stroke, and comprising: a. a stem restable at one end on said body surface to extend outwardly therefrom parallel to and adjacent said plunger, and having an outer end surface at right angles to the axis thereof, and b. a gauge body provided with an axial bore slidably mounted on said stem for movement therealong and having end surfaces at right angles to said stem, the inner end surface of said body being restable on said plunger surface, and the projection of said stem from said injector body surface being equal to the sum of said specified timer spacing and the axial length of said gauge body, whereby when the timer spacing of said injector is properly set, the outer end surfaces of said gauge stem and body will be disposed accurately in coplanar relation, the existence of this coplanar relation, or any lack of it, being detected by passing a fingertip over said outer end surfaces of said gauge members.
Claim 3
Dependent Claim
36 words
A timing gauge as recited in claim 1 wherein the outer end surfaces of said gauge stem and body are smoothly polished, whereby to assist in the fingertip detection of any deviation thereof from coplanar relation.
Claim 4
Dependent Claim
49 words
A timing gauge as recited in claim 1 wherein said gauge stem is provided at its outer end with an enlarged head slidably movable in an enlargement of the stem bore of said gauge body, the projection of said stem being measured to the outer surface of said head.
Claim 5
Dependent Claim
65 words
A timing gauge as recited in claim 3 wherein said gauge stem and body are fitted together as finely and accurately as possible while still maintaining a freely slidable "no-drag" relation of said stem in the bore of said gauge body and of said stem head in the enlargement of said bore, whereby to limit any relative movement of these elements to axial sliding movement.
Claim 6
Dependent Claim
68 words
A timing gauge as recited in claim 1 wherein said stem is provided at the end thereof restable on said injector body with an axially projecting reduced spindle insertable into a socket provided therefor in said injector body, the axis of said socket being parallel to the direction of operating movement of said injector plunger, whereby said gauge stem is maintained parallel to said direction of plunger movement.
Claim 7
Dependent Claim
60 words
A timing gauge as recited in claim 5 wherein the reduction of said stem to produce said spindle provides a shoulder at right angles to said stem, said shoulder being restable on said injector body surface, whereby the projection of said stem from said injector surface equals the length of said stem from said shoulder to the outer end thereof.
Claim 8
Dependent Claim
49 words
A timing gauge as recited in claim 6 wherein the depth of said injector body socket is greater than the axial length of the spindle of said stem, whereby to preclude any possibility that said stem spindle could prevent contact between said stem shoulder and said injector body surface.
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) | 1981-07-03 | 1982-01-02 | 1982-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-03 | 1986-01-02 | 1986-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-03 | 1990-01-02 | 1990-07-04 | $7700.00 | Window Closed / Lapsed |