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:
Jun. 23, 1992
Filed:
Feb. 22, 1991
Ryouji Kanda, Komaki, JP;
Abstract
A fluid-filled elastic rotational coupling including an inner and an outer sleeve fixed to one and other of a driving and a driven rotary member, an intermediate sleeve disposed in concentric and radially outwardly spaced relation with the inner sleeve, a pair of wings extending diametrically opposite parts of the inner sleeve toward the intermediate sleeve, an elastic body interposed between the inner and intermediate sleeves and having two pairs of pockets each pair being formed on opposite sides of each wing as viewed in the circumferential direction of the coupling, and a sealing rubber layer between the intermediate and outer sleeves. The outer sleeve closes the pockets to thereby provide two pairs of fluid chambers. An orifice passage is provided between the intermediate and outer sleeves, for fluid communication between each pair of fluid chambers whose fluid pressures change in opposite direction upon relative rotation of the inner and outer sleeves.