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:
May. 22, 2001
Filed:
Aug. 24, 1999
Richard B. Jankowski, South Bend, IN (US);
Chad N. Zigler, Mishawaka, IN (US);
AlliedSignal Inc., Morristown, NJ (US);
Abstract
An adjustment arrangement for a hydraulic brake actuator (,) of the type having a piston (,) which moves a preferred distance within a cylindrical bushing (,) portion of a housing between a quiescent retracted position with a preferred clearance space between one piston end and a brake mechanism, and an extended position with the piston end engaging and actuating the brake mechanism in response to the application of hydraulic fluid pressure includes a return spring (,) which, upon relief of the hydraulic pressure, urges the piston (,) back from the brake mechanism engaging position to the retracted position. There is an internally disposed mechanical piston clearance space adjustment feature including an expandable sleeve (,) which surrounds a cantilevered pin (,) having a split expander ring (,) near a free end thereof. Upon excessive piston (,) travel, the sleeve moves along the expander ring (,) to establish a new retracted piston position. Depression of the piston (,) to its initial position allows removal of the split ring (,) and expandable sleeve (,) allowing ready substitution of a new sleeve during brake maintenance.