Apparatus for making samples for infrared analysis

Details Apparatus for making samples for infrared analysis Apparatus for making samples for infrared analysis

1997-08-27

1999-07-27

Theisen, Mary Lynn

Plastic article or earthenware shaping or treating: apparatus

Means to create a vacuum or apply fluid pressure within a...

425420, B29C 4356, B29C 4302

Patent

active

059286806

ABSTRACT:
An evacuable KBr die includes a base, a cylindrical barrel, a pellet arranged in a bore of the barrel, a piston which also fits within the bore, and an evacuable pad. O-rings are provided to create seals between the various components. Sample material for analysis is pressed between the piston and the pellet while a vacuum is created at the top and bottom of the sample to remove water vapor from the sample. For this purpose, passages are provided in both the base and barrel to transmit the vacuum from the pad to the upper and lower ends of the bore.

REFERENCES:
patent: 3794458 (1974-02-01), Iwasaki
patent: 4054405 (1977-10-01), Facey et al.
patent: 4534721 (1985-08-01), Iwasaki et al.
patent: 4732556 (1988-03-01), Chaing et al.

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