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:
Feb. 16, 1999
Filed:
May. 02, 1997
Applicant:
Inventor:
Kenneth L Lawson, Rancho Cucamonga, CA (US);
Assignee:
Anthony Manufacturing, Co., Azusa, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01G / ;
U.S. Cl.
CPC ...
239201 ; 239205 ; 239206 ; 251 46 ; 251363 ; 137327 ;
Abstract
An irrigation sprinkler of the type having an inlet control valve is provided with a removable valve seat formed integrally with an inlet filter screen. The valve seat is positioned to engage a valve head to normally prevent water inflow to a sprinkler case, whereas the filter screen prevents entry of small rocks and other particulate debris into the sprinkler case when the inlet control valve is open. The valve seat is removable from the top of the sprinkler case, without requiring disconnection of the case from a water supply line, to permit flushing of collected debris or to permit replacement of a damaged valve seat.