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. 03, 1986
Filed:
Mar. 20, 1985
Toyoda Koki Kabushiki Kaisha, Kariya, JP;
Abstract
A rotary valve which includes a valve sleeve having a cylindrical internal cavity and a plurality of axial grooves formed on the wall surface of the internal cavity; a valve spool fitted in the internal cavity of the valve sleeve and rotatable relative to the valve sleeve for controlling flow of a pressurized fluid through the valve; an annular groove formed at least at one end of the valve sleeve and having a diameter larger than that of the internal cavity; a bush fitted in the annular groove and having a hole of the same diameter as the internal cavity of the valve sleeve; a seal material interposed between engaging surfaces of the bush and annular groove; chamfered surface formed at the outer corner edge of the bush; and an annular thin-wall portion formed at the end of the valve sleeve and bent radially inward to retain the bush in the annular groove.