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. 12, 2002
Filed:
Dec. 23, 1999
Thomas Lee Runels, Battle Creek, MI (US);
Dana Corporation, Toledo, OH (US);
Abstract
A brake actuator having a switch device mounted to an actuator housing with a C-shaped molded body and a C-shaped spring member partially surrounding an actuator rod and adapted to contact a large diameter section of the actuator rod when brake wear causes the actuator rod to travel to a service limit position. In normal operation the spring member is separated from a small diameter section of the actuator rod. The switch device is mounted at an open end of the molded body and spring member and comprises first and second electrical contacts which extend and electrically contact each other as long as the brake actuator rod has not traveled to the service limit. When the push rod ahs traveled to its service limit, a large diameter portion of the push rod forces the contacts apart thus opening the electric circuit.