Patent ID: 9370788
Filing Date: 2016-06-21
CPC Classification: A01C,B05B

Claim Text:
1. A liquid chemical dispenser for an irrigation system comprising: a body having a passage for the flow of irrigation water; a water inlet port on a first side of the body in fluid communication with the water passage, the inlet port having a first diameter; a water discharge port on a second side of the body in fluid communication with the water passage, the discharge port having a diameter substantially equal to the first diameter; an aspirator passage substantially orthogonal to and in fluid communication with the passage for the flow of water; a removable chemical container for containing a liquid chemical for mixing with irrigation water flowing through the body connected to the body and in fluid communication with the aspirator passage, the container having an opening at a first end thereof; a membrane which, when intact, seals the opening in the chemical container; a dip tube in fluid communication with the aspirator passage for withdrawing liquid chemical from the chemical container, the dip tube consisting of a substantially cylindrical tube having a threaded connector and seal at a first end thereof, a sharpened tip configured for piercing the membrane at an opposing second end thereof, and a section of increased diameter proximate the sharpened tip thereof sized and configured such that when the tip pierces a membrane on the chemical container and the dip tube is inserted in the opening so made, a substantially annular opening in the membrane is produced around the dip tube.