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. 06, 2011
Filed:
Oct. 28, 2009
James Leroy Gossett, Marshalltown, IA (US);
William V. Fitzgerald, Marshalltown, IA (US);
Raymond W. Micheel, Gilman, IA (US);
Donald Sanders, Atlanta, GA (US);
Donald Ray Bush, Marshalltown, IA (US);
Wade Jonathon Helfer, Ames, IA (US);
James Leroy Gossett, Marshalltown, IA (US);
William V. Fitzgerald, Marshalltown, IA (US);
Raymond W. Micheel, Gilman, IA (US);
Donald Sanders, Atlanta, GA (US);
Donald Ray Bush, Marshalltown, IA (US);
Wade Jonathon Helfer, Ames, IA (US);
Fisher Controls International LLC, Marshalltown, IA (US);
Abstract
A control valve having a shiftable valve plug includes a valve body having an inlet, an outlet, a flow passage extending between the inlet and the outlet, and defining a longitudinal axis, a generally cylindrical valve cage disposed within the valve body and sized to receive the valve plug, with the valve cage including at least one aperture comprising at least a portion of the flow passage, a portion of the valve cage disposed adjacent a portion of the valve body at an interface. A seal having a C-shaped cross section is provided and is disposed at the interface between the valve cage and the valve body, and a retainer is disposed adjacent the interface and positioned to secure the seal against movement along the longitudinal axis.