Geometrical instruments – Area integrators – Electrical
Patent
1986-01-31
1986-12-30
Martin, Jr., William D.
Geometrical instruments
Area integrators
Electrical
33172E, 33558, G01B 328
Patent
active
046318313
ABSTRACT:
A tread depth probe for measuring the depth of a tread groove in a tire comprising a retaining and release mechanism to retain the probe pin in a retracted position when not in use and a release mechanism to release the probe pin when in use and having a measuring system permitting multiple tire groove depth readings while permitting the tread depth probe to be in the released position.
REFERENCES:
patent: 2190899 (1940-02-01), Vierling
patent: 2324998 (1943-07-01), Dague
patent: 2654156 (1953-10-01), Boyer
patent: 3936945 (1976-02-01), Jevremov
patent: 4195413 (1980-01-01), Haraguchi et al.
patent: 4227308 (1980-10-01), Talansky et al.
Bacher William J.
Corpstein Jeffrey J.
Bandag Licensing Corporation
Hill Frank B.
Martin, Jr. William D.
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