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. 28, 2003
Filed:
Nov. 07, 2000
Applicant:
Inventors:
Hidekazu Michioka, Tokyo, JP;
Masashi Konomoto, Tokyo, JP;
Masahiro Yoshihashi, Yamanashi, JP;
Yoshihito Watanabe, Tokyo, JP;
Assignee:
THK Co., Ltd., , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E04H 9/02 ;
U.S. Cl.
CPC ...
E04H 9/02 ;
Abstract
A damping device receiving viscous fluid in an annular gap between a housing and a rotary member within the housing and converting a dynamic energy of the rotary member into a thermal energy is provided. The damping device is constructed to make it possible to move a sealing unit for sealing the annular gap in response to a pressure of the viscous fluid, to change the volume of the annular gap to suppress an adverse affect concomitant with the pressure increase of the viscous fluid to the sealing unit and to enhance reliability and durability of the damping device.