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.
Patent No.:
Date of Patent:
Apr. 15, 2003
Filed:
Nov. 03, 2000
Applicant:
Inventors:
Mervet S. Boulos, Troy, MI (US);
Craig S. Caldwell, Rochester Hills, MI (US);
Assignee:
Henkel Corporation, Gulph Mills, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C11D 1/68 ; C11D 3/02 ; C11D 3/06 ; C11D 3/08 ;
U.S. Cl.
CPC ...
C11D 1/68 ; C11D 3/02 ; C11D 3/06 ; C11D 3/08 ;
Abstract
An aqueous based cleaner containing at least inorganic alkalinizing agents and surfactants is capable of removing long dried paint and thick carbonaceous deposits from used aircraft engines, sometimes without using organic solvents at all and always without using more than a few % of such solvent, thereby greatly reducing pollution potential from this difficult cleaning operation. A preferred cleaner also includes a hydrotroping agent, and the cleaner may also contain corrosion inhibitor, sequestering agent for hard water cations, and other materials.