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:
Jul. 24, 2012
Filed:
Nov. 16, 2005
Mauro Piccoli, Brembate di Sopra, IT;
Luca Gelfi, Casirate D'Adda, IT;
Mauro Piccoli, Brembate di Sopra, IT;
Luca Gelfi, Casirate D'Adda, IT;
Freni Brembo S.p.A., Curno (Bergamo), IT;
Abstract
A device for controlling roll-back of a piston in a brake caliper includes a bush coaxial with and external to the piston. The bush has an outer sealing surface, and a scraper element seated in the caliper body acts against the sealing surface of the bush. An elastic element between the bush and the piston has a elastic constant selected so as to provide an elastic force on the piston substantially weaker that the axial friction force exerted by the scraper element. When the piston is pushed out of its piston seat, the piston packs the elastic means or abuts against the bush before relative sliding occurs between the scraper element and the outer sealing surface of the bush.