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:
Sep. 19, 2000
Filed:
Oct. 15, 1998
Applicant:
Inventors:
Assignee:
Yamatake Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; F16J / ;
U.S. Cl.
CPC ...
251214 ; 277522 ; 277523 ;
Abstract
A valve device includes a valve stem 2 vertically movably inserted in a packing box 1a; a gland packing 6 interposed between the packing box 1a and the valve stem 2; a packing follower 15 disposed on the gland packing 6; and one or more arched plate springs 19 for pressing the gland packing 6 via the packing follower 15 or a packing flange 7 disposed on the packing follower 15.