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:
Sep. 04, 2001
Filed:
Sep. 25, 1998
Takao Nakadate, Yamato, JP;
Tokico Ltd., Kanagawa-ken, JP;
Abstract
A hydraulic shock absorber includes an inner cylinder filled with a working oil, an outer cylinder, and a reservoir defined between the inner and outer cylinders. A piston is slidably disposed within the inner cylinder so as to divide the interior of the inner cylinder into an upper cylinder chamber and a lower cylinder chamber. A piston rod is connected to the piston. A tubular member is disposed between the inner and outer cylinders and has a radial port. A damper mechanism is attached to the outer cylinder so as to control the flow of the working oil to produce a damping resistance. The outer cylinder includes a mounting projection with a substantially flat top surface on which the damper mechanism is secured. A sleeve has one end inserted into the port of the tubular member and the other, flanged end terminating at the top surface of the mounting projection. A first sealing element is secured between the sleeve and the port to provide a seal between the sleeve and the tubular member. A second sealing element is secured between the flanged end of the sleeve and the top surface of the mounting projection. A third sealing element is secured between the flanged end of the sleeve and the casing of the damper mechanism.