Thomas D Rasmussen

US Patent:

6483300, Nov 19, 2002

Filed:

Dec 5, 2000

Appl. No.:

09/730182

Inventors:

Gregg J. Severson - Prior Lake MN
James H. McGlennen - Eden Prairie MN
Daniel J. Brown - St. Anthony MN
Thomas S. Rasmussen - Kasson MN

Assignee:

Seagate Technology LLC - Scotts Valley CA

International Classification:

G01R 3312

US Classification:

324212, 360 9703

Abstract:

The present invention is directed to a disc heater for use with a spin-stand. The disc heater is adapted to heat a disc that is mounted to a spindle of the spin-stand. The disc heater includes a heater support, a heater, and a controller. The heater support is couplable adjacent the spindle and the disc and is adapted to support the heater near a surface of the disc. The heater produces heat that raises at least a surface of the disc to a temperature that simulates an operating temperature of a disc drive. The controller is electrically coupled to the heater and controls the heat produced by the heater. The spin-stand is adapted to perform various tests on the transducing head. Additional tests, such as accelerated aging studies, can also be performed on the disc.

US Patent:

46594850, Apr 21, 1987

Filed:

Jan 31, 1986

Appl. No.:

6/824776

Inventors:

Dominic S. Arbisi - Minnetonka MN
Thomas A. Rasmussen - Moundsview MN

Assignee:

Aeras Water Resources, Inc. - Eden Praire MN

International Classification:

C02F 700

US Classification:

210758

Abstract:

Method and apparatus for aerating flowing water which includes a plurality of successive aerating chambers having divider baffles therein to direct the flowing water downwardly while introducing a flow of oxygen and water thereto and permit the oxygen level in the flowing water to be maximized.

US Patent:

43175350, Mar 2, 1982

Filed:

May 15, 1980

Appl. No.:

6/149901

Inventors:

Terrance D. Huftel - Hudson Township, St. Croix County WI
Lester B. Odegaard - Afton MN
Thomas K. Rasmussen - Roberts WI

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

B25C 504

US Classification:

227 19

Abstract:

An anvil in a stapler around which generally U shaped staples are bent into a generally rectangular shape, which anvil has edge surfaces outwardly tapered from a guide surface from which the anvil projects, which tapered edge surfaces help maintain the staples adjacent and in alignment with the guide surface as they are bent closed.