The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 16, 2002

Filed:

Apr. 02, 2001
Applicant:
Inventors:

Anthony M. Rossi, Tabernacle, NJ (US);

Kenneth C. Barrett, Bensalem, PA (US);

Assignee:

BetzDearborn, Inc., Trevose, PA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D 1/113 ;
U.S. Cl.
CPC ...
G05D 1/113 ;
Abstract

A solid chemical feed system, preferably including two feed bowls, comprises a quantity of solid chemicals that dissolve upon immersion in water to form a liquid solution. A sump is provided to receive liquid solution from the feed bowls, the liquid solution with additive chemicals being used as a treatment for cooling towers, boilers, or other industrial processes to inhibit corrosion and rust. The feed system comprises a valve system that is controlled by a sensor that detects the conductivity of the liquid solution to alternatingly switch the introduction of liquid solution from one feed bowl to the other feed bowl. As such, upon depletion of chemical feed in one bowl, desired treatment will continue and the empty bowl may be replaced without disruption of liquid solution supply.


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