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. 25, 1982
Filed:
Dec. 12, 1980
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A master cylinder apparatus of a type of wherein a master cylinder which is in communication through a connecting port with an oil reservoir on its upper side. A piston is provided having at its front and rear surfaces respective elastic cups, whereby the piston may be pushed to advance against the action of a spring on its front side by a push rod. The piston comprises a front main piston and a rear subsidiary piston connected thereto, and is further defined by an axially extending return port communicating between front and rear oil chambers and with a check valve interposed in the return port arranged to be closed by the action of a releasable spring supported by a stopper at the rear surface, during advance motion of the piston.