Autoclave for the pressure digestion of sample materials in anal

Details Autoclave for the pressure digestion of sample materials in anal Autoclave for the pressure digestion of sample materials in anal

1987-06-17

1990-07-31

Richman, Barry S.

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

422104, 422113, 422295, 422297, 422299, 215243, 215260, 215270, 215283, 215321, 220208, 220316, 220325, 220327, 220356, 220366, B01L 300

Patent

active

049449230

ABSTRACT:
An autoclave useful for pressure digestion of samples for chemical analysis, consisting of a closeable vessel containing the sample, which during operation sustains elevated temperatures and pressures. The autoclave has a PTFE (Teflon) beaker and lid, in direct contact with each other thus forming a tight seal with an excess-pressure release mechanism. The assembled vessel is held in a device that presses the sealing surfaces of the beaker and lid together, through pressure on a metallic lid support disc. The sealing surfaces of the beaker and lid are free-standing, which permits a direct release of excess-pressure and necessitates an extended clamping device for the lid support disc, which is fixed at a single point.

REFERENCES:
patent: 3483089 (1969-12-01), Brewer
patent: 3933440 (1976-01-01), Woolley
patent: 4228134 (1980-10-01), Alfio
patent: 4303615 (1981-12-01), Jarmell et al.
patent: 4335074 (1982-06-01), Bernas
patent: 4406861 (1983-09-01), Beauvais et al.
patent: 4750610 (1988-06-01), Ryder

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