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:
Nov. 24, 1992
Filed:
Nov. 19, 1991
Applicant:
Inventor:
William R McLennan, Easton, PA (US);
Assignee:
Victaulic Company of America, Easton, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
251229 ; 74 182 ; 74 23 ; 74 57 ; 251252 ; 2513353 ;
Abstract
A hermetically-sealed actuator for a rotary valve is provided in which a first camming member is operative to move a stem axially, axial movement of the stem, in turn, producing rotation of a second rotary cam mamber that is operatively connected to rotate a valve spindle, the axially movable stem being hermetically sealed by a bellows mechanism, thus hermetically isolating the second camming member from the first camming member.