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:
Apr. 06, 2021
Filed:
Nov. 28, 2017
Fisher Controls International Llc, Marshalltown, IA (US);
Trenton Frank Jackson, Marshalltown, IA (US);
Wade Jonathon Helfer, Ames, IA (US);
Fisher Controls International LLC, Marshalltown, IA (US);
Abstract
A bushing having a shaft seal is disclosed herein. An example apparatus includes a fluid valve body, a valve shaft disposed in the fluid valve body, and a bushing disposed on the valve shaft between the valve shaft and the fluid valve body. The bushing includes a first groove disposed on an inner surface of the bushing and a second groove disposed on an outer surface of the bushing. A first seal is disposed in the first groove to seal against the valve shaft and a second seal is disposed in the second groove to seal against the valve body.