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:
Jan. 30, 2001
Filed:
Sep. 14, 1999
Allan M. Goldberg, Laguna Nigel, CA (US);
James W. Zimmerman, Walnut, CA (US);
Joseph Daniel Mason, Big Bear City, CA (US);
The Torro Company, Minneapolis, MN (US);
Abstract
A sprinkler for watering a fixed spray pattern includes a flow conduit having a nozzle coupled thereto. A filter screen is held in place beneath the nozzle. The filter screen engages against a poppet type valve member of a flow shut off valve to space the valve member away from a valve seat to permit water flow through the flow conduit when the filter screen and nozzle are in place. If the nozzle is removed, the filter screen can move far enough upwardly, or can itself also be removed, that the valve member closes to shut off flow through the flow conduit. The flow shut off valve is located at a fixed distance from a reference point in the top of the flow conduit to permit the same sized screen to open the valve regardless of the overall length of the flow conduit. A flush cap used initially on top of the flow conduit in place of the nozzle, i.e. during shipment and initial pressurization and flushing of the flow conduit, has a downwardly extending extender finger which interacts with the shut off valve in the same manner as the filter screen to open the shut off valve whenever the flush cap is in place.