Ball tester

Details Ball tester Ball tester

1995-05-19

1996-10-22

Chilcot, Richard

Measuring and testing

Hardness

By penetrator or indentor

73860, 73 85, G01N 348

Patent

active

055678700

ABSTRACT:
A pair of arms are pivotally connected with each arm including a hand grip portion and a ball clamping portion. The clamping portions carry ball support members which support and center a ball within the tester. A gauge is mounted on one of the clamping portions and has a plunger which extends through one of the ball support members for engaging the outer surface of a ball. Movement of the clamping portions is limited by engagement of the end surfaces of the clamping portions. A torsion spring normally urges the hand grip portions away from one another. In one embodiment, the spring urges the clamping portions toward one another, and in another embodiment, the spring urges the clamping portions away from one another.

REFERENCES:
patent: 3138951 (1964-06-01), Scott
patent: 3696662 (1972-10-01), Foltz et al.
patent: 4114350 (1978-09-01), Snyder
patent: 4116047 (1978-09-01), Hejkal
patent: 4136554 (1979-01-01), Larson
patent: 5222391 (1993-06-01), Reenstra
patent: 5291774 (1994-03-01), Putnam, Jr.

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