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Fuel injector circuit tester with rotatable magnifying lens for viewing indicating LEDs

  • US 5,168,238 A
  • Filed: 08/19/1991
  • Issued: 12/01/1992
  • Est. Priority Date: 08/19/1991
  • Status: Expired due to Fees
First Claim
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1. A fuel injector circuit tester comprising:

  • housing means having a top surface;

    selectively operable illumination means retained in said housing means, visible from said top surface and being individually illuminable in response to a sensed electric pulse being delivered to a selected fuel injector associated with an internal combustion engine, said illumination means comprising a plurality of light emitting diodes;

    switch means for facilitating a selective closing of electric circuits associated with said illumination means, said switch means including a plurality of individually operable push button switches associated with respective ones of said plurality of light emitting diodes, thereby to permit a delivery of said electric pulse to a selected one of said plurality of light emitting diodes;

    a T-shaped slot formed in said top surface along an axial length of said housing means, said T-shaped slot operably retaining a slidably moveable magnet to which an upstanding support pole is attached, said slidably moveable magnet being selectively positionable within said T-shaped slot so as to selectively vary a positioning of said upstanding support pole, said movable magnet comprising a base member for said upstanding support pole and being further retained within said T-shaped slot by side edge portions of said T-shaped slot;

    a magnifying lens rotatably attached to said upstanding support pole, said magnifying lens being retained within an arm structure rotatably mounted on said upstanding support pole, whereby said magnifying lens may be selectively positioned over one of said plurality of light emitting diodes;

    light filtering means rotatably attached to said pole, said light filtering means being selectively positionable over said magnifying lens to facilitate an enhanced viewing of one of said light emitting diodes; and

    electrical harness means for interconnection between a vehicle'"'"'s fuel control computer and a plurality of fuel injectors, said illumination means being serially connected to individual electrical leads within said harness means.

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