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. 21, 2025
Filed:
Jun. 18, 2020
Prospira Corporation, Kawasaki, JP;
Hiroshi Kojima, Tokyo, JP;
Prospira Corporation, Kawasaki, JP;
Abstract
A vibration-damping device includes a first attachment member (), a second attachment member (), an elastic body (), and a partition member (), the partition member including a membrane () and an orifice (). The orifice () includes a first communication hole (), a second communication hole (), an intermediate chamber (), a restriction passage (), and a communication hole (), the restriction passage includes a main liquid chamber-side passage () and an auxiliary liquid chamber-side passage (), the main liquid chamber-side passage and the auxiliary liquid chamber-side passage extend in a circumferential direction and are disposed to be connected to each other in a radial direction, and when the liquid flows through the restriction passage from any one of the first communication hole and the second communication hole toward the other, the flow direction in the main liquid chamber-side passage and the flow direction in the auxiliary liquid chamber-side passage are opposite to each other.