Brian C Pope

US Patent:

20210037728, Feb 11, 2021

Filed:

Oct 22, 2020

Appl. No.:

17/077244

Inventors:

- Azusa CA, US
Brian Pope - Boulder CO, US
Samir Shah - Chino Hills CA, US
Christopher Leland O'Neal - Kingman AZ, US
David R. Laybourn - Claremont CA, US

International Classification:

A01G 25/06
A01G 25/02

Abstract:

A drip emitter is provided for delivering irrigation water from a supply tube to an emitter outlet at a reduced and relatively constant flow rate. Water enters the emitter through a first inlet and proceeds into a first chamber. When the water pressure is above a predetermined level, a one-directional valve opens to allow fluid flow past the first chamber, through a tortuous path flow channel, and through an emitter outlet. A second inlet is used to compensate for water pressure fluctuations in the supply tube to maintain output flow at a relatively constant rate. Water enters the second inlet and presses a flexible diaphragm toward a water metering surface to provide pressure-dependent control of the output flow. A copper member is mounted to the emitter over the emitter outlet to prevent plant root intrusion into the emitter outlet.

US Patent:

20170325417, Nov 16, 2017

Filed:

Aug 1, 2017

Appl. No.:

15/665848

Inventors:

- Azusa CA, US
Brian Pope - Boulder CO, US
Samir Shah - Chino Hills CA, US
Christopher Leland O'Neal - Vista CA, US
David Leybourn - Claremont CA, US

International Classification:

A01G 25/06
A01G 25/02

Abstract:

A drip emitter is provided for delivering irrigation water from a supply tube to an emitter outlet at a reduced and relatively constant flow rate. Water enters the emitter through a first inlet and proceeds into a first chamber. When the water pressure is above a predetermined level, a one-directional valve opens to allow fluid flow past the first chamber, through a tortuous path flow channel, and through an emitter outlet. A second inlet is used to compensate for water pressure fluctuations in the supply tube to maintain output flow at a relatively constant rate. Water enters the second inlet and presses a flexible diaphragm toward a water metering surface to provide pressure-dependent control of the output flow. A copper member is mounted to the emitter over the emitter outlet to prevent plant root intrusion into the emitter outlet.