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:
Dec. 09, 1997
Filed:
Nov. 08, 1995
Daniel Messinger, Migdal Haemek, IL;
Plastro Gvat, Doar Gvat, IL;
Abstract
A rotary sprinkler has a step-down transmission between a turbine wheel drive and the sprinkler nozzle, which transmission includes a fixed ring gear having internal teeth coaxial with the drive rotary axis; a planet gear having external teeth engageable with, but fewer in number than, the internal teeth of the ring gear; and an eccentric pin secured to the rotary drive at its rotary axis and having a central axis laterally of the drive rotary axis. The eccentric pin is received within an opening centrally of the planet gear to cause the planet gear to planetate around the fixed ring gear and to rotate around the drive rotary axis at a step-down velocity determined by the difference in the number of teeth between the ring gear and the planet gear.