Michael G Skinner

US Patent:

20020020164, Feb 21, 2002

Filed:

Jul 26, 2001

Appl. No.:

09/915758

Inventors:

Bradley Cleveland - Plymouth MN, US
Frank Arcella - Eden Prairie MN, US
Michael Skinner - Eden Prairie MN, US

International Classification:

B23P011/00
B23B011/00
B23P017/00

US Classification:

060/039010, 029/505000, 029/527200, 029/412000, 029/03400R, 029/03300T

Abstract:

A metal article of manufacture including a tubular body portion and free-formed metal features on the tubular body portion. The free-formed metal features are formed of a layerwise deposition of a molten metal material in a predefined pattern to form the desired free-formed feature or construction.

US Patent:

61997455, Mar 13, 2001

Filed:

Jul 8, 1999

Appl. No.:

9/349628

Inventors:

Craig L. Campbell - Maple Grove MN
Mark S. Fullen - St. Paul MN
Michael J. Skinner - Eden Prairie MN

Assignee:

MTS Systems Corporation - Eden Prairie MN

International Classification:

B23K 2012
B23K 3102
B23K 3700

US Classification:

2281121

Abstract:

A welding head including upper and lower probe members and probe pin. The upper and lower probe members are independently actuatable and biased to follow the profile of a workpiece and supply a balance load to opposed surfaces of a workpiece during welding operation.

US Patent:

46014306, Jul 22, 1986

Filed:

May 10, 1984

Appl. No.:

6/608779

Inventors:

Michael F. Skinner - Blaine MN

Assignee:

Northern States Power Company - Minneapolis MN

International Classification:

B02C 1808

US Classification:

2411012

Abstract:

An ash grinder (30) which is particularly adapted for reducing chunks of fly ash from a flue gas scrubber system to facilitate further handling, includes a rectangular throat section (32) of uniform cross-section with a shaft (52) extending therethrough. The shaft (52) is supported by bearings (54) on pedestals (56) located external to the throat section (32). Sets of perpendicular blades (66, 68) are secured to shaft (52) for rotation between opposite sets of fixed blades (48) located inside the throat section (32). The shaft (52) is driven by a reversible motor (76) through a chain and sprocket arrangement (70, 72 and 74) at a relatively slow speed on a continuous basis so that any large chunks of fly ash formed within the scrubber chamber, such as during a system upset for example, will be reduced to an acceptably smaller size to facilitate further handling without manual intervention or interruption of system operation.