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Primary Examiner: Aegerter, Richard E.
Assistant Examiner: Stearns, Richard R.
Attorney: Brisebois & Kruger

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Title: Device for preventing error in slide calipers

Abstract: Slide calipers having gear-driven digital counter are provided with spring for applying torsional bias to the gearing so as to eliminate backlash, and consequent error in measurement.


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Inventors: Uchino, Kenju (Utsunomiya, JA)

Application Number: 244459
Filing Date: 1972-04-17
Publication_date: 1976-03-23
Assignee: Uchino; Yehan (Yokohama, JA)
Primary Class(es): 33/784 33/810, 33/DIG12
Other Classes:
US Patent Ref:
2846769Aug, 1958Colont33/147.
3397590Aug, 1968Prentice74/409.
3477304Nov, 1969Young74/409.

Other Refs: 489,774371,239
Jun, 1970CH
May, 1939IT
Other References: "Antibacklash Devices and Backlash Calculation," Michalec, Machine Design, pp. 200-205, Feb., 1955.