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:
Dec. 24, 1996
Filed:
May. 15, 1995
Gregory J Orzal, Hartford, WI (US);
Wacker Corporation, Menomonee Falls, WI (US);
Abstract
A parking brake assembly positively engages the drive gear or another component of a wheel drive train and thus cannot slip. Accordingly, the brake assembly can be smaller in size, is less expensive to construct and install, and requires lower release pressures than are required for friction brake assemblies of comparable capacity. When used with industrial vehicles powered via an axle-mounted drive gear, the brake assembly preferably includes a pinion which meshes with the drive gear and a piston on which the pinion is supported. The piston (1) is spring applied towards a first position in which the piston and thus the shaft and the drive gear are mechanically locked from rotation and (2) can be pressure-driven to a second position permitting free rotation of the piston, pinion, and drive gear.