Hardness tester

Details Hardness tester Hardness tester

1974-12-30

1976-05-18

Gill, James J.

Measuring and testing

Hardness

By penetrator or indentor

G01N 342

Patent

active

039569250

ABSTRACT:
This invention relates to a method and a portable apparatus for testing the hardness of thin film plastics. The basic apparatus comprises a base stand including a platform for the sample to be tested, an indenter consisting of a pointed shaft in conjunction with a weight, and a dial gauge.

REFERENCES:
patent: 1870415 (1932-08-01), Lewis
patent: 2422634 (1947-06-01), Riepert et al.
patent: 2643545 (1953-06-01), More
patent: 2914937 (1959-12-01), More
patent: 3524343 (1970-08-01), Sear
patent: 3877297 (1975-04-01), Oesterle

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