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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.:

US 10662645 B1

PDFFull Text
Date of Patent:
May. 26, 2020

Filed:

Jan. 25, 2017

Seismic isolation apparatus

Applicant:

Oiles Corporation, Tokyo, JP;

Inventors:

Osamu Kochiyama, Ashikaga, JP;

Kenta Nagahiro, Ashikaga, JP;

Yasunari Kimura, Ashikaga, JP;

Assignee:

OILES CORPORATION, Tokyo, JP;

Attorney:

Nixon & Vanderhye P.C.

Primary Examiner:

Nkeisha Smith

Int. Cl.
CPC ...
F16F 1/40 (2006.01); E04B 1/98 (2006.01); E04H 9/02 (2006.01); F16F 13/04 (2006.01); F16F 15/02 (2006.01); F16F 7/12 (2006.01);
U.S. Cl.
CPC ...
E04B 1/98 (2013.01); E04H 9/02 (2013.01); F16F 1/40 (2013.01); F16F 13/04 (2013.01); F16F 15/022 (2013.01); F16F 7/12 (2013.01); F16F 2224/025 (2013.01); F16F 2224/0208 (2013.01); F16F 2224/0233 (2013.01); F16F 2236/103 (2013.01);
Abstract

A seismic isolation apparatus includes a laminated body having alternately laminated rubber plates and steel plates; a hollow portion provided inside the laminated body in a hermetically closed manner and extending in a laminated direction; a lead plug filled densely in the hollow portion and adapted to damp the vibration in a shearing direction of the laminated body by absorbing vibrational energy in the shearing direction; and a lid member having a semispherical concave surface which comes into contact with one end portion in the laminated direction A of the lead plug in order to guide and assist the plastic flow of the lead plug at one end portion in the laminated direction of the hollow portion in the deformation in the shearing direction of the lead plug.

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