Donald T Clark

US Patent:

7604126, Oct 20, 2009

Filed:

Sep 2, 2005

Appl. No.:

11/217446

Inventors:

Alexander Patist - Maple Grove MN, US
Darren Miles Bates - Tewantin, AU
Karen Ann Mikkola - Lakeland FL, US
John Llewellyn Yasalonis - Lakeland FL, US
Trent William Weatherwax - Lakewood IL, US
Donald Robert Clark - Tampa FL, US

Assignee:

Cargill, Incorporated - Wayzata MN

International Classification:

B03B 1/00
B03D 1/00
B03D 1/14

US Classification:

209164, 209 3, 241 1

Abstract:

In a process for beneficiating phosphate rock a slurry is provided having 30% to 70% by weight of a liquid phase and having a solid phase comprising clay, sand, and phosphate rock. In the process, the slurry is exposed to ultrasonic energy released from a sonotrode located within the slurry. The slurry may be exposed to the ultrasonic energy for less than 10 seconds. The ultrasonic energy may be produced by a piezoceramic transducer to have a resonance frequency within the range of from 16 kHz to 100 kHz. The ultrasonic energy may have an intensity within the range of from 0. 0001 W/cmto about 1000 W/cm. The ultrasonic energy may create cavitational forces within the slurry. After exposure to ultrasonic energy, clay and sand are separated from the phosphate rock, perhaps using an air flotation process and a cycloning process.

US Patent:

D624586, Sep 28, 2010

Filed:

Dec 24, 2009

Appl. No.:

29/352743

Inventors:

Ted C. Halbur - Lino Lakes MN, US
Donald C. Clark - Seattle WA, US
Roger Ricketts - Woodbury MN, US

Assignee:

Target Brands, Inc. - Minneapolis MN

International Classification:

1908

US Classification:

D19 9

US Patent:

D634779, Mar 22, 2011

Filed:

Oct 18, 2010

Appl. No.:

29/377182

Inventors:

Brigette Ann Lynch - St. Paul MN, US
Taydem Rae Wall - Andover MN, US
Donald C. Clark - Seattle WA, US

Assignee:

Target Brands, Inc. - Minneapolis MN

International Classification:

1908

US Classification:

D19 9

US Patent:

D685863, Jul 9, 2013

Filed:

Nov 2, 2012

Appl. No.:

29/436276

Inventors:

Stacy Abel - Maple Grove MN, US
Brian Robert Bennett - Minneapolis MN, US
Kelly M. Gray - Minneapolis MN, US
Brian R. Holt - Minneapolis MN, US
Donald C. Clark - Seattle WA, US

Assignee:

Target Brands, Inc. - Minneapolis MN

International Classification:

2101

US Classification:

D21533

US Patent:

20030110821, Jun 19, 2003

Filed:

Oct 10, 2002

Appl. No.:

10/268167

Inventors:

Lawrence Peacock - Minnetonka MN, US
Donald Clark - Tampa FL, US

International Classification:

C05B001/00

US Classification:

071/033000

Abstract:

A method for preparing a granular fertilizer composition that includes reacting a phosphoric acid stream with ammonia in a pipe cross reactor to form a molten slurry, and discharging the molten slurry into a granulator to form the granular fertilizer composition. The phosphoric acid stream includes greater than 0.6 wt. % magnesium oxide, based upon the total weight of the reactant stream.

US Patent:

20120323712, Dec 20, 2012

Filed:

Jul 11, 2011

Appl. No.:

13/180098

Inventors:

Brian R. HOLT - Minneapolis MN, US
Jesse GADOLA - Minneapolis MN, US
Rafael SORIANO - Eagan MN, US
Donald C. CLARK - Seattle WA, US

Assignee:

TARGET BRANDS, INC. - MINNEAPOLIS MN

International Classification:

G06K 19/077
F16K 37/00
G06K 19/04
G06Q 30/00
G06K 19/00
G06K 19/06

US Classification:

705 17, 235487, 235492, 235493, 235494, 137551

Abstract:

A transaction product includes a substantially rigid housing, a pump assembly, and an account identifier. The substantially rigid housing defines a substantially liquid-tight reservoir, an outflow aperture, and an external surface. The substantially liquid-tight reservoir is configured to maintain a liquid therein. The pump assembly is enclosed within the substantially rigid housing and is in communication with the substantially liquid-tight reservoir and the outflow aperture. The pump assembly is configured to move liquid from the substantially liquid-tight reservoir, through the pump assembly, and out the outflow aperture and into an external environment surrounding the substantially rigid housing. The account identifier is statically connected to the external surface of the substantially rigid housing and links the substantially rigid housing to at least one of an account and a record and is machine readable by a point-of-sale terminal.