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:
Dec. 24, 1991
Filed:
Feb. 09, 1990
Kohei Mori, Higashimatsuyama, JP;
Kimio Ishihara, Higashimatsuyama, JP;
Jidosha Kiki Co., Ltd., Tokyo, JP;
Abstract
In a master cylinder for use in various braking devices of an automatic vehicle and the like, a cylinder housing is constituted by a body having an opening at one end thereof and by a cap which is coupled with the body to close the opening. A piston is inserted through the cap and is freely slidably arranged inside the cylinder housing and is guided by a piston guide or a sleeve having a path which is in communication with an external fluid path. The master cylinder has a single groove or a plurality of grooves with a micro-sized depth defined in the surface of the piston guide where it engages the cylinder housing between the external fluid path and a pressure chamber defined by the master cylinder and piston. The master cylinder also has a tapered portion provided on the inner surface of the cylinder housing, and another tapered portion is provided on the end of the sleeve. The sleeve is assembled to the cylinder housing by bringing the tapered portion into abutment with the tapered portion on the cylinder housing.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile