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. 21, 2021
Filed:
Apr. 17, 2019
Nelson Irrigation Corporation, Walla Walla, WA (US);
Craig Nelson, Walla Walla, WA (US);
Riley D. Greenwood, Walla Walla, WA (US);
Nelson Irrigation Corporation, Walla Walla, WA (US);
Abstract
A pressure regulator () including: a housing () including a flow passage (); a plunger () configured to move within the housing, wherein the plunger is hollow and has a plunger passage () included in the flow passage; a valve seat () in the housing and disposed in the flow passage immediately upstream of an inlet () to the plunger passage; a shuttle () within the housing configured to move between an upstream-most position at which the shuttle abuts the valve seat to close the flow passage and a downstream position displaced from the valve seat which opens the flow passage; a sealed chamber () within the housing and between the plunger and the shuttle, wherein the sealed chamber is configured to be operated at pressures other than at atmospheric pressure; and a port () in the housing and open to the sealed chamber, wherein the port is configured to be connected to a source () of a pressurized fluid.