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:
Jan. 05, 1993
Filed:
Sep. 21, 1990
Issei Kanari, Kanagawa, JP;
Yoshiaki Watanabe, Kanagawa, JP;
Atsugi Unisia Corporation, , JP;
Abstract
A hydraulic shock absorber is provided which includes generally a cylinder assembly to define working and reservoir chambers therewithin, a piston rod, a rod guide member which guides bounding and rebounding strokes of the piston rod, and an oil seal contacting with the piston rod to seal an opening of the cylinder assembly. The rod guide member includes outer and inner supporting sections. The inner supporting section also includes outer and inner wall sections which are coaxially arranged with a preselected interval therebetween. The outer wall section is spaced from an inner wall of the cylinder assembly to provide flexibility to the rod guide in cooperation with the inner wall section. The shock absorber further includes a reinforcement partly inserted into the oil seal to provide flexural rigidity to the outer supporting section of the rod guide and a communication path defined by a chambered surface formed on a peripheral surface of the reinforcement and a recessed portion formed in an edge portion of the first supporting section to fluidly connect the working and reservoir chambers.