JOSEPH LEE LEONARD
Pilots at Ammons St, Arvada, CO

License number
Colorado A5259969
Issued Date
Aug 2015
Expiration Date
Aug 2020
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
6822 Ammons St, Arvada, CO 80004

Professional information

Joseph Leonard Photo 1

Submersible Pumping Systems And Methods For Deep Well Applications

US Patent:
2010027, Oct 28, 2010
Filed:
May 6, 2010
Appl. No.:
12/775202
Inventors:
Joseph L. Leonard - Arvada CO, US
Assignee:
Geotech Environmental Equipment, Inc. - Denver CO
International Classification:
E21B 43/00, F04D 13/08
US Classification:
166369, 4174233
Abstract:
Submersible pumping systems, devices and methods for extracting liquids in deep well applications are disclosed. In the various embodiments, a submersible pumping system includes a power supply and a power converter coupled to the power supply. A subsurface unit may be coupled to the power converter and positioned in the well. The subsurface unit may include a subsurface controller, a motor and a pump portion operably coupled to the subsurface controller. The pump portion may further include a front shroud having an inlet, and a back shroud sealably coupled to the front shroud to define a volume. An orifice fluidly communicates with the volume and an annular fluid discharge space disposed about the subsurface unit. An impeller operably coupled to the motor and positioned within the volume may transport a liquid from the inlet to the annular fluid discharge space.


Joseph Leonard Photo 2

Submersible Pumping Systems And Methods For Deep Well Applications

US Patent:
2008028, Nov 20, 2008
Filed:
May 16, 2007
Appl. No.:
11/749600
Inventors:
Steven Regalado - Westminster CO, US
Joseph L. Leonard - Arvada CO, US
International Classification:
F04B 23/14
US Classification:
4174233, 166105, 417390, 417409
Abstract:
Submersible pumping systems, devices and methods for extracting liquids in deep well applications are disclosed. In the various embodiments, a submersible pumping system includes a power supply and a power converter coupled to the power supply. A subsurface unit may be coupled to the power converter and positioned in the well. The subsurface unit may include a subsurface controller, a motor and a pump portion operably coupled to the subsurface controller. The pump portion may further include a front shroud having an inlet, and a back shroud sealably coupled to the front shroud to define a volume. An orifice fluidly communicates with the volume and an annular fluid discharge space disposed about the subsurface unit. An impeller operably coupled to the motor and positioned within the volume may transport a liquid from the inlet to the annular fluid discharge space.