Geometrical instruments – Gauge – Circular size
Patent
1992-10-29
1995-01-24
Wirthlin, Alvin
Geometrical instruments
Gauge
Circular size
33783, 33804, G01B 508
Patent
active
053832833
ABSTRACT:
A device for measuring the diameter and circumference of a flexible circular object which includes two movable gauge pieces. The flexible circular object to be measured is place between the two gauge pieces and compressed thus forcing the object to be measured to conform to the shape of the gauge. The distance separating the gauge pieces is measured and is compared to the gap produced by a reference. The length of separation is converted to diameter and circumference measurements by appropriate means.
REFERENCES:
patent: 2849797 (1958-09-01), Etchell
patent: 3303572 (1967-02-01), Vreeland, Jr.
patent: 4543725 (1985-10-01), Golinelli et al.
patent: 4549355 (1985-10-01), Sauer et al.
patent: 4593473 (1986-06-01), Shimomura
patent: 4805311 (1989-02-01), Fuchs
Olsen Steven L.
Riding Kim D.
LaMarre Mark F.
Lovell Charles N.
Morton International Inc.
White Gerald K.
Wirthlin Alvin
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