US4079310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine analyzing device
Assignee: Individual
•
Filing: 1976-09-07
•
Granted: 1978-03-14
•
Expires: 1996-09-07
Abstract
Abstract A device for analyzing spark ignition type engines is disclosed wherein the electrical output from the high voltage side of the engine may be directed in a variety of paths through the device so that the spark of each cylinder jumping a gap provided therein may be viewed singly or in comparison with that of the other cylinders both in running and nonrunning engine conditions. Furthermore individual cylinders may be shorted out to determine the effect of the cylinders performance to the entire engine.
Inventors
- 👤 James H. Ortmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:32
CPC Classifications
H; H01; H01T; H01T13/00; H01T13/58; H01T13/60; F; F02; F02P; F02P17/00; G; G01; G01R; G01R13/00; G01R13/42
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
220 words
An engine analyzing device for testing both ignition and combustion power of a multiple cylinder engine comprising: the combination of a housing including a plurality of directly observable adjustable spark gaps having electrical connections on opposite sides thereof and a ground connection spaced therefrom, means for electrically connecting the high tension ignition lead of each of said cylinders to one side of its respective gap and the spark plug of said cylinder to the other side thereof, and a plurality of switches for each such cylinders and movable to first, second and third positions wherein the first position connects the spark plug side of said gap with said ground whereby high tension voltage is directed through said gap and then to ground of each respective cylinder, said second position makes no connection between said gap sides and ground whereby high tension voltage is directed through said gap and then to the spark plug of said respective cylinder and said third position interconnects said opposite sides of said gap whereby high tension voltage bypasses said gap and is directed directly to said spark plug of said respective cylinder whereby each of said gaps may be adjusted while said engine is running and whereby each of said gaps may be simultaneously observed both when said engine is running and when not running.
Claim 2
Dependent Claim
220 words
An engine analyzing device for testing both ignition and combustion power of a multiple cylinder engine comprising: the combination of a housing including a plurality of directly observable adjustable spark gaps having electrical connections on opposite sides thereof and a ground connection spaced therefrom, means for electrically connecting the high tension ignition lead of each of said cylinders to one side of its respective gap and the spark plug of said cylinder to the other side thereof, and a plurality of switches for each such cylinders and movable to first, second and third positions wherein the first position connects the spark plug side of said gap with said ground whereby high tension voltage is directed through said gap and then to ground of each respective cylinder, said second position makes no connection between said gap sides and ground whereby high tension voltage is directed through said gap and then to the spark plug of said respective cylinder and said third position interconnects said opposite sides of said gap whereby high tension voltage bypasses said gap and is directed directly to said spark plug of said respective cylinder whereby each of said gaps may be adjusted while said engine is running and whereby each of said gaps may be simultaneously observed both when said engine is running and when not running.
Claim 3
Dependent Claim
16 words
The device of claim 1, each said spark gap comprising an opposed pair of needle points.
Claim 4
Dependent Claim
36 words
The device of claim 1 including supporting means for the electrical ground and spark gap connections, said switch spaced from said supporting means to provide an air gap therebetween to prevent carbon tracking between said connections.
Claim 5
Dependent Claim
54 words
The device of claim 3 including a common supporting surface disposed intermediate of said housing for supporting said respective connections of each of said cylinder in side-by-side spaced relationship, said connections outwardly projecting from said intermediate supporting surface for serial contact with said switch in turn spaced to one side of said supporting surface.
Claim 6
Dependent Claim
55 words
The device of claim 4, said connections for each respective cylinder arranged in line along a longitudinal plane projecting from the front to the rear of said housing, said switch being a slidable bar having a longitudinally orientated contact outwardly projecting therefrom, said bar slidable in a path parallel to said line within said plane.
Claim 7
Dependent Claim
94 words
The device of claim 5, each of said spark gaps comprising an opposed pair of needle points, one of each pair positioned on said intermediate support and means for simultaneously adjusting said spark gaps comprising a plate pivotally suspended at one end thereof within said housing on the other side of said intermediately disposed support, said plate positioning the other of each of said pairs of points above said one thereof at the other end thereof and actuation means for moving said other end of said plate towards and away from said intermediate support.
Claim 8
Dependent Claim
56 words
The device of claim 6 wherein the means for moving said plate away from said support comprises a leaf spring spanning and interconnected to both said plate and said intermediately disposed support and serving to electrically connect the other of said needle points of each said pair with its respective spark plug side of said gap.
Claim 9
Dependent Claim
111 words
The device of claim 2, said means for simultaneouly moving one of said points of each of said pairs comprising a pivotally movable plate, the other of each said pair positioned on said intermediate support, and means for separately adjusting said one points towards said other points, said adjusting means comprising a plurality of aligned threaded openings provided in said plate, said one needle points of said pairs thereof having external threads adapted for interengagement with the threads of said openings wherein said one needle points project through said plate and a jam nut engaged with said projecting portion of each said needle point on the opposite side of said plate.
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) | 1981-03-13 | 1981-09-12 | 1982-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-13 | 1985-09-12 | 1986-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-13 | 1989-09-12 | 1990-03-14 | $7700.00 | Window Closed / Lapsed |