DOUGLAS WILLIAM MARSHALL
Pilots at 700, Thomas, ID
License number
Idaho A5268849
Issued Date
Sep 2015
Expiration Date
Sep 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
265 N 700 W, Thomas, ID 83221
Professional information
Solution Dewatering With Concomitant Ion Removal
US Patent:
6602418, Aug 5, 2003
Filed:
Jan 22, 2001
Appl. No.:
09/766985
Inventors:
Eric S. Peterson - Idaho Falls ID
Douglas W. Marshall - Blackfoot ID
Mark L. Stone - Idaho Falls ID
Douglas W. Marshall - Blackfoot ID
Mark L. Stone - Idaho Falls ID
Assignee:
Bechtel BWXT Idaho, LLC - Idaho Falls ID
International Classification:
B01D 6100
US Classification:
210640, 210651, 210652, 21050027, 210490, 210653
Abstract:
One of the biggest needs in the separations and waste handling and reduction area is a method for dewatering ion-containing solutions. Unexpectedly, it has been found that phosphazene polymers can discriminate between water and metal ions, allowing water to pass through the membrane while retaining the ions. This unexpected result, along with the inherent chemical and thermal stability of the phosphazene polymers, yields a powerful tool for separating and dewatering metal-ion-containing solutions.
Methods Of Forming A Fluidized Bed Of Circulating Particles
US Patent:
7947326, May 24, 2011
Filed:
Sep 28, 2006
Appl. No.:
11/536361
Inventors:
Douglas W. Marshall - Blackfoot ID, US
Assignee:
Battelle Energy Alliance, LLC - Idaho Falls ID
International Classification:
C23C 16/00
US Classification:
427213, 427182, 4272481, 4272555
Abstract:
There is disclosed an apparatus for forming a fluidized bed of circulating particles. In an embodiment, the apparatus includes a bottom portion having a sidewall, the sidewall defining a curvilinear profile, and the bottom portion configured to contain a bed of particles; and a gas inlet configured to produce a column of gas to carry entrained particles therein. There is disclosed a method of forming a fluidized bed of circulating particles. In an embodiment, the method includes positioning particles within a bottom portion having a sidewall, the sidewall defining a curvilinear profile; producing a column of gas directed upwardly through a gas inlet; carrying entrained particles in the column of gas to produce a fountain of particles over the fluidized bed of circulating particles and subside in the particle bed until being directed inwardly into the column of gas within the curvilinear profile.
Electromagnetically Driven Peristaltic Pump
US Patent:
6109888, Aug 29, 2000
Filed:
Sep 9, 1998
Appl. No.:
9/150506
Inventors:
Douglas W. Marshall - Blackfoot ID
Assignee:
Bechtel BWXT Idaho, LLC - Idaho Falls ID
International Classification:
F04B 1700
US Classification:
4174131
Abstract:
An electromagnetic peristaltic pump apparatus may comprise a main body section having an inlet end and an outlet end and a flexible membrane which divides the main body section into a first cavity and a second cavity. The first cavity is in fluid communication with the inlet and outlet ends of the main body section. The second cavity is not in fluid communication with the first cavity and contains an electrically conductive fluid. The second cavity includes a plurality of electrodes which are positioned within the second cavity generally adjacent the flexible membrane. A magnetic field generator produces a magnetic field having a plurality of flux lines at least some of which are contained within the second cavity of the main body section and which are oriented generally parallel to a flow direction in which a material flows between the inlet and outlet ends of the main body section. A control system selectively places a voltage potential across selected ones of the plurality of electrodes to deflect the flexible membrane in a wave-like manner to move material contained in the first cavity between the inlet and outlet ends of the main body section.