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:
Nov. 24, 2009
Filed:
Dec. 14, 2006
Flynt Leroy Smith, Saint David, AZ (US);
Bandar Hussain Alumran, Clifton Park, NY (US);
Mary Margaret Boice, Tucson, AZ (US);
Marianne Goble, Tucson, AZ (US);
Daniel S. Gabrys, Flagstaff, AZ (US);
Suzanne Lee Singer, Berkeley, CA (US);
Flynt Leroy Smith, Saint David, AZ (US);
Bandar Hussain Alumran, Clifton Park, NY (US);
Mary Margaret Boice, Tucson, AZ (US);
Marianne Goble, Tucson, AZ (US);
Daniel S. Gabrys, Flagstaff, AZ (US);
Suzanne Lee Singer, Berkeley, CA (US);
Rain Bird Corporation, Azusa, CA (US);
Abstract
A sprinkler having a water-driven drive mechanism or motor for rotating a sprinkler head is disclosed where the drive mechanism converts a constant input rate into a variable rate to reduce tailing from overly-rapid rotation and to promote full develop of water stream discharge profile. The drive mechanism includes continuously engaged members including one or more planet gears each having an offset or eccentrically positioned engagement portion for driving a second gear member. As the planet gear rotates, the movement of the engagement portion has a radial component relative to the second gear, and the rotational velocity of the second gear is related to the radial position of the engagement portion.