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. 01, 1977
Filed:
Jan. 24, 1975
Akiyoshi Hirai, Toyoda, JA;
Hiroshi Uemura, Toyoda, JA;
Abstract
An improved master cylinder for a hydraulic automotive brake system, comprising a metallic cylinder, a brake fluid reservoir made of plastic material, disposed in a perpendicular relation to the cylinder and having a circular opening at its bottom, a tubular extension formed on the cylinder at right angles thereto and extending between the cylinder and the brake fluid reservoir and having an axial bore which is coaxial with the bottom opening of the reservoir, a generally disc- or bowl-shaped connecting member made of metal, united with the reservoir in a one-step molding operation in such a manner as to substantially close the bottom opening of the reservoir and having a circular hole which is coaxial with the axial bore of the tubular extension, whereby the tubular extension of the cylinder is connected with the brake fluid reservoir in a fluid-tight manner, and a bolt associated with the connecting member in a fluid-tight manner, extending downwardly into the tubular extension of the cylinder and having an axial bore which permits the flow of brake fluid between the reservoir and the cylinder.