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:
Oct. 25, 2016
Filed:
Jan. 18, 2013
Marshall Excelsior Company, Marshall, MI (US);
Frederick W. Blanchard, Battle Creek, MI (US);
Nathan H. Coy, Mason, MI (US);
MARSHALL EXCELSIOR CO., Marshall, MI (US);
Abstract
A valve assembly includes a housing defining a cavity and a bore which opens into the cavity. A valve member is disposed in the cavity. The valve member moves between an open position for allowing fluid flow through the housing and a closed position for preventing fluid flow through the housing. An actuator extends through the bore for moving the valve member between the open and closed positions. A packing is positionable in the bore to provide a seal about the actuator for preventing fluid from exiting the housing through the bore. The packing is ejectable from the bore. The valve assembly includes a first and second biasing member. The first biasing member is configured to apply a first force to the packing to provide the seal. The second biasing member is configured to apply a second force to the packing for ejecting the packing from the bore.