Douglas Paul Hanson

US Patent:

7721537, May 25, 2010

Filed:

Jan 27, 2004

Appl. No.:

10/765708

Inventors:

Deborah A. Klinkert - Plymouth MN, US
Douglas L. Hanson - Blaine MN, US

Assignee:

Cummins Power Generation Inc. - Minneapolis MN

International Classification:

F02B 27/02

US Classification:

60312, 60310

Abstract:

A system includes a combustion engine for a genset. The engine having an exhaust to emit water and exhaust gases from the exhaust and a sound-dampening device coupled between the exhaust and a muffler, the sound-dampening device including a tubular member having internal rings.

US Patent:

46709363, Jun 9, 1987

Filed:

Feb 25, 1986

Appl. No.:

6/833087

Inventors:

Douglas R. Hanson - Coon Rapids MN

International Classification:

A21C 900

US Classification:

15306B

Abstract:

A vacuum hood for removing flour, dust, and other small particles from bakery products (dough pieces), including baffling which provides desired airflow paths adjacent leading and trailing edges of the hood. The hood overlies bakery products as the products are carried in pans on a conveyor belt moving in a path prior to baking. The hood has conduits for directing jets of air under pressure through orifices against the bakery products tending to lift the products at the same time that a vacuum is drawing particles of material inwardly under the edges of the hood to insure that excess flour, and other light particulate materials are drawn up into the hood efficiently without creating regions where the flour and particles may fall back onto the pans that are holding the bakery products. The air jets from above tends to circulate around the pockets in the bakery pans for the product causing currents that tend to lift the bakery products, so that crumbs, baking residues, and flour and any other dust particles are removed.

US Patent:

39992381, Dec 28, 1976

Filed:

Aug 9, 1974

Appl. No.:

5/496105

Inventors:

Douglas R. Hanson - Minneapolis MN

International Classification:

A47L 1538

US Classification:

15 56

Abstract:

A pan cleaning apparatus for use with bun and roll pans in bakeries which will provide a brushing and scrubbing action for loosening seeds, crumbs or the like as well as other foreign material which may be lodged in the pan after use. The device includes brushes arranged to brush all of the corners and recesses of the pan adequately. The unit includes multiple brush construction and a vacuum hood which removes debris from the pan as it passes through the apparatus.

US Patent:

40444201, Aug 30, 1977

Filed:

Jun 26, 1975

Appl. No.:

5/590404

Inventors:

Douglas R. Hanson - Minneapolis MN

International Classification:

B08B 908

US Classification:

15304

Abstract:

A pan cleaning apparatus for use with bun and roll pans in bakeries which will use a combined air blast and vacuum action to loosen seeds, crumbs or the like as well as other foreign material which may be lodged in a bun pan after use. The device may include brushes arranged to brush all of the corners and recesses of the pan adequately for loosening material with the air blast-vacuum hood which removes debris from the pan used as a final cleaning stage.