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:
Oct. 15, 1991
Filed:
Sep. 12, 1990
Applicant:
Inventor:
Ronald D Schlesch, Three Rivers, MI (US);
Assignee:
Armstrong International, Inc., Three Rivers, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ; F16K / ; F16K / ;
U.S. Cl.
CPC ...
251330 ; 251267 ; 2513353 ; 277200 ;
Abstract
A valve apparatus comprises a valve body having a fluid passage therein including a valve seat. A valve member, having a head and stem, is movable in the body between valve open and valve closed positions determined by the proximity of its head to the valve seat. The valve member is engageable in sealing relation with a portion of the valve body between the valve seat and a valve stem packing to block fluid in the passage from contacting and leaking between the valve stem and packing. This sealing relation also serves to protect a bellows, connected between the valve member and valve body, from contact with fluid in the fluid passage.