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:
Nov. 25, 1980
Filed:
Dec. 28, 1978
Hiroshi Hirashita, Hanyu, JP;
Akebono Brake Industry Co. Ltd., Tokyo, JP;
Abstract
Construction of a seal arrangement for a sliding part of a pin slide type disc brake having a boot attached to the edge of an open end of a cylindrical portion of a caliper to slidably engage the outer circumferential face of a slide pin in an airtight manner. The boot is arranged to have the inner circumference of one end part thereof elastically expandable. The slide pin is provided with a tapered flange part at one end thereof in such a way as to expand and enlarge the end part of the boot. When the slide pin is inserted to a full extent into the cylindrical portion of the caliper, the tapered flange part causes the end of the boot to enlarge to allow an increased portion of air pressure which is increased within the cylindrical portion of the caliper by the insertion of the slide pin to escape to the inside of the boot through an air flow passage provided in the tapered flange part of the slide pin.