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:
Apr. 13, 1993
Filed:
Nov. 07, 1991
Alistair G Taig, Edwardsburg, MI (US);
Allied-Signal Inc., Morristown, NJ (US);
Abstract
The disc brake with variable width caliper and powered actuation comprises first and second bridge members (14, 15) connected to two movable members (20, 30) extending over the periphery of the rotor (51). An inboard end of each movable member includes threads having threadably mounted thereon a nut (28, 29). The nut has ratchet teeth on one axial end which engage ratchet teeth (10A, 11A) of an associated actuator sleeve (10, 11) disposed slidably about the movable member. Each sleeve includes gear teeth (10C, 11C) about its circumference. The second bridge member is mounted slidably upon the movable members. The teeth of the sleeves are engaged by a rack member (110). A piston (117) includes an arm (125) connecting the piston with a rack (130) of the rack member so that hydraulic pressure effect displacement of the piston and a lateral displacement of the rack. The lateral movement of the rack thereby effects rotation of the sleeves which, through the engaged ratchet teeth (10A, 11A) causes the nuts to rotate and effect translational movement of the movable members. The nuts (28, 29) translate along the movable members, displace the second bridge member and a friction lining mechanism (16) against the rotor, and by reaction, the movable members bring a friction lining of the first bridge member into engagement with the other face of the rotor.