Instrument for measuring the softening temperature of glass

Details Instrument for measuring the softening temperature of glass Instrument for measuring the softening temperature of glass

1979-04-16

1981-04-07

Goldstein, Herbert

Measuring and testing

Gas content of a liquid or a solid

By vibration

G01N 2504

Patent

active

042598605

ABSTRACT:
Apparatus and a method are disclosed for measuring the softening temperature of a specimen of a thermoplastic material such as glass. Pressure is applied through a rod to the specimen as the specimen is heated to at least its softening temperature. When the rod penetrates a predetermined distance into the softened specimen, the temperature of the specimen is measured.

REFERENCES:
patent: 3187556 (1965-06-01), Ehlers
patent: 3289460 (1966-12-01), Anderson
patent: 3580047 (1971-05-01), Simpson
patent: 3630073 (1971-12-01), Michel
patent: 3646802 (1972-03-01), Nolting et al.
patent: 4116048 (1978-09-01), Appleford

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