Patent 9055718 was granted and assigned to Rain Bird (company) on June, 2015 by the United States Patent and Trademark Office.
A deep root watering unit is described herein that includes an elongated hollow sleeve member and a grate-retaining housing mounted at an upper end of the sleeve member. A cap configured as a grate can be attached to the top portion of the housing. The deep root watering unit is advantageously configured to facilitate insertion and removal of the cap, irrigation adjacent to the housing, and/or distribution of fluid to adjacent irrigation devices.