Wheel vehicle measuring apparatus

Geometrical instruments – Distance measuring – Of length by rolling contact

Reexamination Certificate

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Details

C033S779000

Reexamination Certificate

active

07111412

ABSTRACT:
Disclosed is a vehicle wheel measuring apparatus, comprising a push rod, a counter, a wheel, and a gear coupled mechanism, wherein the counter is disposed on top of the push rod. Through the gear coupled mechanism, the axle center of said counter and the wheel axle form a joint relationship having the same rotational cycles. A front yoke is attached to the wheel axle in the end of said push rod, and a set of magnetic element is disposed between the wheel axle and the interior side of the front yoke. This prevents the wheel from rotating by itself that affects actual measured distance.

REFERENCES:
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patent: 2129979 (1938-09-01), Westervelt et al.
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patent: 2716819 (1955-09-01), Staples
patent: 2741031 (1956-04-01), Martin, Jr. et al.
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patent: 3616541 (1971-11-01), Crayton
patent: 4308665 (1982-01-01), Losch
patent: 4667413 (1987-05-01), Pitts
patent: 5067249 (1991-11-01), Terrigno
patent: 2004/0016141 (2004-01-01), Hofstee

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