Ronald D Schaefer

US Patent:

55158765, May 14, 1996

Filed:

Apr 21, 1994

Appl. No.:

8/230853

Inventors:

Charles E. Warner - Troy OH
Ronald D. Schaefer - West Milton OH
Donald H. Blackburn - Brookville OH
Darryl W. Bernard - Dayton OH
Charles L. Logan - Fairfield OH

Assignee:

Premark FEG Corporation - Wilmington DE

International Classification:

B08B 1500

US Classification:

134 57D

Abstract:

A torsion bar assembly for a dishwasher door having a stainless steel torsion bar enclosed in an elongated stainless steel tube such that the bar rotates within the tube as the door is moved between an open and a closed position. One end of the bar and tube are fixedly disposed in a rectangular boss which is fixedly attached to the dishwasher door; and a second end of the tube and bar are releasably disposed in a cylindrical boss which is welded to a door hinge. The bosses are attached on opposite sides of the interior door panel, so that the torsion bar extends substantially the width of the door. The torsion bar is protected from water by the corrosion-resistant tube, and by a pair of quad-rings which are disposed in recesses in the cylindrical boss. The quad-rings prevent water from seeping through the boss and reaching the torsion bar. When the ends of the torsion bar are disposed in the bosses, the bar is spaced within the tube to permit the bar to rotate independently of the tube.