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:
Jun. 30, 2015
Filed:
Oct. 31, 2011
Jason Gene Olberding, Marshalltown, IA (US);
Bryan Quinn Leger, Marshalltown, IA (US);
Paul Russell Dalluge, Marshalltown, IA (US);
Jason Gene Olberding, Marshalltown, IA (US);
Bryan Quinn Leger, Marshalltown, IA (US);
Paul Russell Dalluge, Marshalltown, IA (US);
FISHER CONTROLS INTERNATIONAL LLC, St. Louis, MO (US);
Abstract
Apparatus to bias valve closure members are described. An example valve includes a valve body having an opening defining a passageway. The opening has an axis that is substantially coaxially aligned with a flow path axis defined by the passageway. A first shaft supports a closure member within the passageway of the valve body and relative to the opening and an end cap removably coupled to the valve body retains the shaft within a bore of the valve body. A spring is disposed between the first seating surface and a second seating surface opposite the first seating surface to provide a force to oppose the weight of the closure member and facilitate alignment of the closure member relative to the opening of the passageway.