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:
Nov. 23, 1993

Filed:

Jul. 06, 1992
Applicant:
Inventor:

Timothy W Tobiason, Silver Creek, NE (US);

Assignee:

Toby's Chemical Co., Silver Creek, NE (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C11D / ; C11D / ;
U.S. Cl.
CPC ...
252157 ; 252156 ; 252158 ; 252142 ; 252143 ; 25217412 ; 25217414 ; 252545 ; 252D / ;
Abstract

The present invention includes a drain cleaning agent and a foaming agent. The foaming agent consists of a gas releasing compound and a surfactant or detergent. This mixture may be flushed into a drain or sewer line where it reacts with water to produce a large volume of foam which then will react with sewage deposits cause their breakdown and removal.


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