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:
Sep. 25, 2018
Filed:
May. 31, 2017
Jl Industries, Inc., Portland, OR (US);
Jack S Vilendre, West Linn, OR (US);
M Kevin Hardwick, North Plains, OR (US);
JL Industries, Inc., Portland, OR (US);
Abstract
An improved trap primer valve may include a valve body having a central tube having a proximal end coupled to an outlet orifice and an open distal end extending into a longitudinal bore of the valve, such that fluid exiting the outlet orifice passes through the central tube. A plug, including a head portion and a rod extending from the head portion into the central tube, may be configured to selectively seat against the distal end of the central tube. An annular cartridge surrounding the central tube may have one or more apertures leading to a partially water-filled inner chamber, and may be configured to unseat the plug in automatic response to a fluctuation in system water pressure, thereby opening the valve and charging a downstream trap.