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:
Jan. 14, 1986
Filed:
Dec. 29, 1983
Applicant:
Inventor:
Robert Spaargaren, Granger, IN (US);
Assignee:
Allied Corporation, Morristown, NJ (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
188331 ; 188 / ;
Abstract
A self-centering brake assembly in which the leading shoe 12 and the trailing shoe 14 are connected in a duo servo braking mode. The connected ends of the shoes have an automatic adjuster comprising an adjuster lever return spring 70, an adjuster lever 74, a wire form link 76 and a pretension caged spring 78. The force of the adjuster lever return spring 70 and the placement of the wire form link 76 together with its pretension cage spring 78 develop a balanced force so that the moments about each anchored end of the shoe is substantially equal to 0. Shoes 12, 14 thus maintain concentricity of the brake shoe ring in relation to the brake drum 28.