David Joseph Strain
Engineering at Roland Ln, Saint Peters, MO

License number
Louisiana PE.0035233
Issued Date
Jan 18, 2010
Expiration Date
Mar 31, 2018
Category
Civil Engineer
Type
Civil Engineer
Address
Address
42 Roland Ln, Saint Peters, MO 63376

Professional information

David Strain Photo 1

Hydroelectric Device

US Patent:
7854119, Dec 21, 2010
Filed:
Jul 7, 2007
Appl. No.:
11/774597
Inventors:
David Joseph Strain - Saint Peters MO, US
International Classification:
F03G 6/00, F03G 7/00, F03D 9/00, H02P 9/04
US Classification:
6064111, 6064115, 290 44, 290 55
Abstract:
The present invention provides a hydroelectric device having a closed conduit portion extending along an elevational drop, with a turbine positioned at a lower elevation and in fluid communication with the closed conduit portion. The closed conduit portion contains a volume of fluid forming a pressure head therein, the fluid impacting the turbine in such a manner as to operate the turbine and produce electricity therefrom.


David Strain Photo 2

Device For Pumping And Desalination Of Water At A Depth

US Patent:
2009009, Apr 9, 2009
Filed:
Oct 3, 2007
Appl. No.:
11/866988
Inventors:
David Joseph Strain - Saint Peters MO, US
International Classification:
F24J 2/24
US Classification:
126634
Abstract:
The present invention provides a device for pumping water from a depth. The device includes a pressure-containing conduit with a first end located at a depth within a body of water, an inlet portion in fluid communication with the pressure-containing conduit to allow water to enter therethrough, a float portion for maintaining the device at a desired depth, a boiler mirror for reflecting light at the pressure-containing conduit, thereby heating water contained therein, and an outlet portion for water to exit the device, preferably in the form of water vapor.


David Strain Photo 3

Device For Desalination Of Water And Increasing Humidity

US Patent:
2009012, May 14, 2009
Filed:
Nov 13, 2007
Appl. No.:
11/939547
Inventors:
David Joseph Strain - Saint Peters MO, US
International Classification:
B01D 3/02
US Classification:
202234
Abstract:
The present invention is directed to a device for producing potable water and increasing the humidity of ambient air. The device includes a housing with an interior space and having an upper surface and an outlet. At least the upper surface of the housing is constructed from a material adapted to admit electromagnetic radiation into the interior of the housing for the purpose of heating the interior of the housing. Water within the interior of the housing is vaporized and exits the housing through the outlet.