Apparatus for measuring backlash in specimen gear

US9109975B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9109975-B2
Application numberUS-201313855042-A
CountryUS
Kind codeB2
Filing dateApr 2, 2013
Priority dateApr 2, 2013
Publication dateAug 18, 2015
Grant dateAug 18, 2015

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  1. Title

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  2. Abstract

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  5. First independent claim

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Abstract

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An apparatus for measuring a backlash in a specimen gear is provided. The apparatus includes a test gear mounted on a forward portion of a spindle, the test gear is configured to mesh with the specimen gear and form an electrical circuit upon contact with the specimen gear. An encoder is rotatably connected to the spindle and configured to output a rotation angle of the spindle. An interrupt unit is configured to detect an opening and closing of the electrical circuit and generate one or more interrupt signals based on the opening and the closing of the electrical circuit. A measuring unit is operatively coupled to the encoder and the interrupt unit, the measuring unit is configured to start measurement, and stop measurement of backlash based on the interrupt signal.

First claim

Opening claim text (preview).

I claim: 1. An apparatus for measuring backlash in a specimen gear, the apparatus including: a test gear mounted on a forward portion of a spindle, the test gear configured to mesh with the specimen gear and form an electrical circuit upon contact with the specimen gear; an encoder rotatably connected to the spindle and configured to output a rotation angle of the spindle; an interrupt unit configured to detect an opening and closing of the electrical circuit and generate one…

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What does patent US9109975B2 cover?
An apparatus for measuring a backlash in a specimen gear is provided. The apparatus includes a test gear mounted on a forward portion of a spindle, the test gear is configured to mesh with the specimen gear and form an electrical circuit upon contact with the specimen gear. An encoder is rotatably connected to the spindle and configured to output a rotation angle of the spindle. An interrupt un…
Who is the assignee on this patent?
Caterpillar Inc
What technology area does this patent fall under?
Primary CPC classification G01M13/021. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Aug 18 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).