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:
Jul. 15, 1997
Filed:
Apr. 28, 1995
Michael C Nelson, Torrance, CA (US);
Other;
Abstract
A fluid flow regulator readily attachable between a rotary sprinkler and a fluid conduit for regulating the water flow and pressure to the sprinkler to irrigate an irregular pattern such as a square. The regulator icludes a body having a streamlined channel leading to a straight through flow variable orifice and being connectable with a respective fluid port member of the sprinkler and the conduit. A rotatable port piece mounted in the body has a straight through flow port, centered on the axis of rotation and communicating with the straight through flow orifice of the body. This port leads to a streamlined channel which exits into the sprinkler shaft. The port piece has a means for coupling rotational energy from the sprinkler. The port and orifice have an identical design such as a four point star or equilateral concaved octagon adapted for watering in a square pattern. The rotational position of the port piece in relation to the body regulates the flow of water. A retaining sleeve, mounted in the body, accomodates a washer and the port piece holding them in place and allowing them to rotate.