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:
Feb. 11, 1997
Filed:
Dec. 13, 1994
Robert L Heimann, Moberly, MO (US);
Orscheln Co., Moberly, MO (US);
Abstract
A spring applied parking brake system for a vehicle including a housing connected with the vehicle chassis, a pivot arm assembly for connection with the parking brake cable of the vehicle, a main spring biasing the pivot arm assembly toward a brake-applied position relative to the housing, a spring compression assembly operable to displace the pivot arm assembly toward a brake-released position relative to the housing, a retaining device normally retaining the pivot arm assembly in the brake-released position, and a release device for releasing the retaining assembly, whereby the pivot arm assembly is released for displacement by the main spring toward the brake-applied position. Preferably, the retaining device includes a helical clutch spring mounted concentrically on a rotatable hub portion of the pivot arm assembly and the compression assembly includes a hydraulic or pneumatic pump and piston.