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:
Aug. 08, 1995
Filed:
Mar. 15, 1994
Frederick J Sweet, College Place, WA (US);
Nelson Irrigation Corporation, Walla Walla, WA (US);
Abstract
A sprinkler includes a body portion having a nozzle at one end and a cap assembly at an opposite end. The cap assembly is secured to the body portion supports a spray plate located downstream of the nozzle. The spray plate has a plurality of stream distributing grooves formed on one side thereof configured to cause the spray plate to rotate when struck by a stream emitted from the nozzle. A universal joint supports the spray plate in the cap assembly such that a center of the spray plate is caused to wobble in one direction of rotation when struck by a stream emitted from the nozzle. Respective sets of gear teeth on the cap assembly and the spray plate are arranged for progressive partial engagement in the one direction of rotation while the spray plate advances relative to the cap assembly in an opposite direction of rotation.