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:
Dec. 24, 2013
Filed:
Aug. 04, 2009
Wilbur Dean Hutchens, Marshalltown, IA (US);
Randall Scott Collison, Bondurant, IA (US);
Loren Lee Bovee, Marshalltown, IA (US);
David Charles Stanze, Marshalltown, IA (US);
Wilbur Dean Hutchens, Marshalltown, IA (US);
Randall Scott Collison, Bondurant, IA (US);
Loren Lee Bovee, Marshalltown, IA (US);
David Charles Stanze, Marshalltown, IA (US);
Fisher Controls International LLC, Marshalltown, IA (US);
Abstract
Methods and apparatus to load a valve packing are described. An example apparatus to load a valve packing includes a load assembly having a biasing element disposed between a valve packing flange and a stop flange to provide a load to a seal assembly. The packing flange is adjustable relative to the stop flange to adjust the load to be applied to the seal. A first guide member coupled to the packing flange or the stop flange provides a first predetermined distance between the packing flange and the stop flange. The first guide member provides an indication of a first predetermined load to be provided by the load assembly when the packing flange and the stop flange are spaced at the first predetermined distance provided by the first guide member.