Surface and abrasive testing device

Details Surface and abrasive testing device Surface and abrasive testing device

2005-09-20

2005-09-20

Nguyen, Vincent Q. (Department: 2858)

Electricity: measuring and testing

Electrolyte properties

Using a conductivity determining device

C436S174000, C073S049300

Reexamination Certificate

active

06946844

ABSTRACT:
A conductivity testing device includes a body containing a magnet positioned to magnetically attach a mounting surface of the body to a surface to be tested. A testing chamber has an opening substantially in a plane with the mounting surface and valves positioned to allow the introducion of a fixed volume of liquid into the chamber. The chamber is sealed to the surface by a tubular resilint seal. An agitating device is mounted in the chamber for agitating liquid introduced into the chamber to wash the enclosed surface area. A testing circuit includes probes positioned in the chamber and a meter for indicating conductivity of a solution contained within the chamber. The testing circuit is electrically coupled to the agitating device in a first mode and connected to the probes in a second mode for testing conductivity of a solution in the chamber.

REFERENCES:
patent: 4282744 (1981-08-01), Dick
patent: 6159743 (2000-12-01), Johnson et al.

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