Automatic system for monitoring and replenishing hazardous liqui

Details Automatic system for monitoring and replenishing hazardous liqui Automatic system for monitoring and replenishing hazardous liqui

1994-02-07

1996-05-21

Voeltz, Emanuel T.

Boots, shoes, and leggings

364510, 364550, 364500, 340612, 340614, 340616, 340618, 73290R, 73301, 73302, 137386, 137391, 137393, 137395, G01F 2300

Patent

active

055196381

ABSTRACT:
An automatic system is disclosed which monitors and replenishes hazardous liquids in their holding tanks, as such liquids are typically used in manufacturing processes. The inventive system and method obviate the need for manual surveillance and handling of the hazardous liquids during the detection and replenishment maintenance tasks. In prior practice, maintenance personnel were subjected to dangers from the hazardous liquids and their noxious gases, while the work area (e.g., clean room) in the vicinity of the liquid tanks was also subjected to contamination.

REFERENCES:
patent: 4788648 (1988-11-01), Ferretti et al.
patent: 4790349 (1988-12-01), Harris
patent: 4901245 (1990-02-01), Olson et al.
patent: 5015995 (1991-05-01), Holroyd
patent: 5264831 (1993-11-01), Pfeiffer
patent: 5339854 (1994-08-01), Leith
patent: 5349994 (1994-09-01), Koeninger

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