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. 03, 2002
Filed:
Nov. 17, 1999
Timothy M. Simon, San Francisco, CA (US);
Blaine M. Smith, Portland, OR (US);
Tim Simon, Inc., San Francisco, CA (US);
Abstract
An irrigation timer ( ) includes a controller ( ), including output signal terminals ( ) coupleable to irrigation valve actuators ( ) and an internal clock, and user inputs ( ). Each irrigation valve actuator is coupleable to an irrigation valve for a watering zone with a watering period setting for each of the watering zones during a watering cycle ( ). The controller divides the watering period for each watering zone by an integer n greater than 1 to obtain fractional watering periods ( ). This permits each zone to be watered for its fractional watering period during a first fractional watering cycle ( ) prior to beginning a second fractional watering cycle n of the fractional watering cycles constitute the watering cycle. The use of fractional watering periods help to spread out watering over a long period of time in each zone.