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:
Jun. 19, 2001

Filed:

Jul. 22, 1999
Applicant:
Inventor:

Jan M. Huml, Medford, WI (US);

Assignee:

G-U Hardware, Inc., Newport News, VA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E05F 1/124 ;
U.S. Cl.
CPC ...
E05F 1/124 ;
Abstract

A window operator, particularly, operators for venting casement windows is provided. The base housing of the operator is of a plastic polymer, which is a non-corrosive and non-thermal conducting material. The top and bottom base components are then sonic welded with a heat-treated steel worm gear welded inside of the plastic base of the window operator creating a one-piece assembly. The worm gear and pinion gear with attached operator arm are placed within the base body before fusion welding the top body. The use of the plastic polymer for the base housing eliminates the possibility of corrosion of the base material. Also, the polymer does not require finishing or painting to protect it from corrosion.


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