Device to verify the identity of a fluid for proper selection of

Details Device to verify the identity of a fluid for proper selection of Device to verify the identity of a fluid for proper selection of

1995-05-10

1997-04-22

Mullen, Thomas

Communications: electrical

Condition responsive indicating system

Specific condition

340618, 340623, 340624, 340625, 73440, 73451, G08B 2100

Patent

active

056232519

ABSTRACT:
Disclosed is a device used to verify the identity of a selected fluid before permitting the selected fluid to be introduced into a storage vessel containing a liquid of known specific gravity. The device includes a container constructed from connecting walls to form a chamber having an opening through which a selected fluid may be introduced; a first float switch positioned in the container for generating a first signal when contacted by a fluid having a specific gravity greater than a first predetermined amount; a second float switch positioned in the container for generating a second signal in the presence of a fluid having a specific gravity greater than a second predetermined amount, where the first predetermined amount is less than the second predetermined amount, and the second float switch is responsive to the first signal from the first float switch.

REFERENCES:
patent: 3946625 (1976-03-01), Miyazaki et al.
patent: 4629398 (1986-12-01), Cahalan

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