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. 07, 1985
Filed:
Oct. 15, 1984
Applicant:
Inventor:
Leonardo Cadeddu, Crema, IT;
Assignee:
Benditalia S.p.A., Crema, IT;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B60T / ;
U.S. Cl.
CPC ...
60589 ;
Abstract
The master cylinder (10) comprises a seal cup (24) made from an elastomeric material assembled with axial and radial play around the head (18) of the piston (16). A stop ring (40) slidably received in the bore (14) permits to unseat the seal cup (24) from the shoulder (30) of the piston in order to connect the supply chamber (28) and the pressure chamber (26). When the piston (18) is displaced towards the latter, it displaces the stop ring (40) by the cooperation of two conical surfaces (54 and 56), the seal cup (24) being supported on a flat surface, composed of the radial shoulder (30) of the piston and the radial face 42 of the stop ring (40) substantially continuous.