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:
Dec. 09, 1986
Filed:
Nov. 12, 1985
Applicant:
Inventors:
Seiji Usui, Kyoto, JP;
Kunio Terada, Kyoto, JP;
Assignee:
Horiba, Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J / ; F16K / ;
U.S. Cl.
CPC ...
277 12 ; 277215 ; 13762546 ; 251314 ;
Abstract
A packing which includes a plurality of seal portions integrally formed on an annular elastic sheet. The seal portions are spaced about the circumference of the sheet and project from one side surface of the sheet. Each seal portion has a through hole extending entirely through the sheet parallel to the center axis of the sheet. In the preferred embodiment, the packing is used in a rotary change-over valve and each seal portion has an annular rib at its free end which is adapted to fit in a corresponding hole in a rotary valve inlet element with the packing held in a recess in the inlet element between the inlet element and a rotary valve outlet element.