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.:

US 7975658 B1

PDF
Full Text
Expired
Date of Patent:
Jul. 12, 2011

Filed:

May. 09, 2003
Applicants:

Kenneth a Pingel, Beaverton, OR (US);

Michael Desousa, Beaverton, OR (US);

Inventors:

Kenneth A Pingel, Beaverton, OR (US);

Michael deSousa, Beaverton, OR (US);

Assignee:

Clyde Bergemann, Inc., Beaverton, OR (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F23L 5/00 (2006.01); F22B 37/48 (2006.01);
U.S. Cl.
CPC ...
Abstract

An air port or smelt spout cleaning tip presents a wider cleaning area configuration on an insertion phase, and on retraction, the tip collapses to provide a smaller size to prevent against hanging up on adjacent structures.


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