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. 09, 2015
Filed:
Oct. 19, 2010
Bill Bertakis, Keego Harbor, MI (US);
Jan Pitzer, Brighton, MI (US);
Mike Thomas, Dundas, CA;
Dale Wesener, Chesaning, MI (US);
Mike Wallace, Wayne, MI (US);
Bill Bertakis, Keego Harbor, MI (US);
Jan Pitzer, Brighton, MI (US);
Mike Thomas, Dundas, CA;
Dale Wesener, Chesaning, MI (US);
Mike Wallace, Wayne, MI (US);
FINISHING BRANDS HOLDINGS INC., Minneapolis, MN (US);
Abstract
A pressure relief system and a non-intrusive, low chatter pressure relief valve for use with such as system are disclosed. The pressure relief valve allows excess pressure in a pressurized fluid line to flow through a flow return line to a fluid reservoir when the fluid pressure exceeds the valve's pressure limit setting. The establishment of a uniform channel between the valve stem and the inner surface of a housing in which the valve stem is slidably located, as well as the use of a vent and sight tube to remove air from the top portion of the housing upon a spring being compressed during the opening of the valve, reduces the occurrence of pulsation and vibration when the valve is cycled between its open and closed positions. When the valve is in its closed position, the bottom end of the valve stem is in close proximity to the inner surface of the main fluid passageway in the pressurized fluid line, but does not intrusively interfere with the flow of fluid through the main fluid passageway.