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. 03, 1989
Filed:
Dec. 30, 1986
Michihiro Orikawa, Yokohama, JP;
Tatsuro Ishiyama, Yokohama, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
A vibration isolating apparatus is provided with a liquid chamber which is capable of being expanded and contracted for the purpose of absorbing vibrations. The liquid chamber is partitioned into small liquid chambers by a resilient membrane, the chambers being communicated with each other through an orifice. Vibrations are transmitted to the small liquid chambers through a transmission shaft which extends through the resilient membrane and which is slidable relative to the membrane. Accordingly, even when the direction in which vibrations act changes, vibrations applied to one small liquid chamber are reliably transmitted to the other small liquid chamber. Thus, contraction of one small liquid chamber causes the other small liquid chamber to expand, and a liquid is forced to pass through the orifice while generating fluid resistance whereby the vibrations are absorbed.