Patent ID: 6945158
Filing Date: 2005-09-20
Classification: C12G

Abstract:
1. A rotary joint for an irrigation system comprising: a) a first section having a first raceway extending around a periphery thereof; b) a second section having a second raceway extending around a periphery thereof; c) an third section having a cylindrical shape for receiving said second section therein, a third raceway extending around the inner periphery thereof; d) a first set of ball bearings positioned in said second raceway and between a bottom side of said first raceway and said second raceway; e) a second set of ball bearings positioned on said third raceway and between a bottom side of said second raceway and said third raceway, wherein said first and third sections are secured together with said second section positioned therebetween and said rotary joint is able to maintain a single cantilevered arm connected to said second section in a balanced state, wherein said first section further includes a first recess extending through a first side thereof, said third section further includes a second recess extending through a side thereof and aligned with said first recess and said rotary joint further includes a connection device for extending through said first and second recesses and thereby securing said first and third sections together.