Hardness testing device for pipes

Details Hardness testing device for pipes Hardness testing device for pipes

1986-01-16

1987-01-13

Birmiel, Howard A.

Measuring and testing

Hardness

By penetrator or indentor

73 78, 409133, G01N 342

Patent

active

046354719

ABSTRACT:
A hardness tester for pipes comprising a positioning mechanism that presents the pipe to a multiple purpose testing head having a pre-programmed proportional control configuration that independently engages the pipe and determines the pipes relative position to that of the program controlled testing head which contains independent pre-programmed testing heads. The pipe is prepared for testing by cleaning a small test portion of the pipe, engagement of a load cell assembly to the clean pipe portion determining material hardness.

REFERENCES:
patent: 2126175 (1938-08-01), Dalcher
patent: 2252993 (1941-08-01), Stewart
patent: 2259840 (1941-10-01), Smith
patent: 2690702 (1954-10-01), Romans et al.
patent: 2839917 (1958-06-01), Webster
patent: 3123997 (1964-03-01), Cosner
patent: 3236124 (1966-02-01), Rhoades
patent: 3295363 (1967-01-01), Delporte
patent: 3802316 (1974-04-01), Bohm et al.
patent: 4061020 (1977-12-01), Fridley et al.
patent: 4435975 (1984-03-01), Edward, Jr.

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