Pivoted-arm caliper

Details Pivoted-arm caliper Pivoted-arm caliper

1991-09-18

1992-10-13

Cuchlinski, Jr., William A.

Geometrical instruments

Gauge

Pivoted probes

33783, 335551, 33709, 33798, G01B 508

Patent

active

051540037

ABSTRACT:
A caliper has a pair of arms which are connected for rotation about a pivot point. Each arm has a tip and a contact surface is connected to one of the arms. The caliper includes a mechanical or electronic indicator which is responsive to the relative position of the arms for providing an indication of a dimension, such as the diameter, radius, circumference, or cross-sectional area, of an object. The caliper has an extended range and can provide an indication of the dimension when the tips of the arms and the contact surface simultaneously contact nondiametrically opposed points on the surface of the object.

REFERENCES:
patent: 454516 (1891-06-01), Brown
patent: 677574 (1901-07-01), Huestis
patent: 979248 (1910-12-01), Ayers, Jr.
patent: 1156694 (1915-10-01), Kopiwski
patent: 1196789 (1916-09-01), Koelpin
patent: 1269336 (1918-06-01), Taylor
patent: 1659939 (1928-02-01), Avery
patent: 2362907 (1944-11-01), Levin
patent: 2855687 (1958-10-01), Price
patent: 3333343 (1967-08-01), Elfast, Jr.
patent: 4468860 (1984-09-01), Rodengen
patent: 4845646 (1989-07-01), Marquis et al.

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