Daniel J Schaefer

US Patent:

6882153, Apr 19, 2005

Filed:

Apr 7, 2004

Appl. No.:

10/709016

Inventors:

Robert Michael Vavrek - Waukesha WI, US
Graeme Colin McKinnon - Hartland WI, US
Daniel Joseph Schaefer - Waukesha WI, US

Assignee:

GE Medical Systems Global Technology Company, LLC - Waukesha WI

International Classification:

G01V003/00

US Classification:

324322, 600410

Abstract:

A method for decreasing gradient field pulse sequence duration for a magnetic resonance imaging system, the method comprising: establishing an allowable gradient field strength for an axis of a plurality of axes for a field of view; applying a weighting factor associated with each axis of the plurality of axes; establishing a slew rate responsive to a selected axis of the plurality of axes that exhibits a largest gradient field strength in light of the weighting factor and the field of view; and operating the plurality of axes at the largest gradient field strength.

US Patent:

7081752, Jul 25, 2006

Filed:

Apr 4, 2003

Appl. No.:

10/249390

Inventors:

Timothy W. Skloss - Waukesha WI, US
Dewain A. Purgill - Waukesha WI, US
Roman I. Dachniwskyj - Pewaukee WI, US
Daniel J. Schaefer - Waukesha WI, US
Steven C. Davis - Oconomowoc WI, US
Daniel J. Weyers - Wauwatosa WI, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

G01V 3/00

US Classification:

324318

Abstract:

A system and method including an apparatus for use in electrically loading RF coils of an MRI system is disclosed. The apparatus includes a polymer interdispersed with an electrically conductive additive such that the apparatus provides the necessary electrical loading of the RF coils for testing and calibration of the MRI system but is free of liquid. Furthermore, the apparatus is capable of providing the requisite electrical load in high magnet magnetic fields without introducing image distortion as a result of standing waves within the apparatus.

US Patent:

20040075434, Apr 22, 2004

Filed:

Oct 16, 2002

Appl. No.:

10/065422

Inventors:

Robert Vavrek - Waukesha WI, US
Graeme McKinnon - Hartland WI, US
Daniel Schaefer - Waukesha WI, US

International Classification:

G01V003/00

US Classification:

324/318000, 324/309000

Abstract:

A gradient coil assembly for a magnetic resonance imaging system comprising: a first gradient coil configured to generate a first gradient field in a first field of view; a second gradient coil configured to generate a second gradient field orthogonal to the first gradient field in a second field of view; and a third gradient coil configured to generate a third gradient field orthogonal to the first gradient field and the second gradient field in a plurality of fields of view.

US Patent:

20050262819, Dec 1, 2005

Filed:

Sep 29, 2004

Appl. No.:

10/953875

Inventors:

Steve Weber - Germantown WI, US
Daniel Schaefer - Port Washington WI, US

International Classification:

A01D069/00

US Classification:

056010800

Abstract:

A control assembly for use with a vehicle having a power take off and a gear shift device. The assembly can include a modular housing and a control that can be movable between a default position and an override position. The assembly can include a terminal block and a control circuit electrically connected to the terminal block and coupled to the modular housing. The assembly can further include an indicator electrically connected to the control circuit and coupled to the modular housing to indicate whether the control circuit is operating according to a default condition or an override condition.

US Patent:

20050274098, Dec 15, 2005

Filed:

Jun 1, 2004

Appl. No.:

10/858569

Inventors:

Steve Weber - Germantown WI, US
Daniel Schaefer - Port Washington WI, US

International Classification:

A01D075/28

US Classification:

05601020R

Abstract:

Override assembly apparatus and method for use with a lawnmower including a control circuit coupled to a first housing. The control circuit can prevent the lawnmower from cutting while the lawnmower is moving in a reverse direction. The override assembly can include a second housing separate from the first housing, a user-manipulatable control, and a terminal block. The override assembly can include an override circuit that can operate in a first state in which the control circuit is enabled and a second state in which the control circuit is disabled in response to the user-manipulatable control.

US Patent:

55705707, Nov 5, 1996

Filed:

Jun 7, 1995

Appl. No.:

8/437156

Inventors:

Kenneth H. Klas - Port Washington WI
Edward Freier - Port Washington WI
Michael P. Schemelin - West Bend WI
Daniel W. Schaefer - Port Washington WI
Gary A. Hays - Cedarburg WI

Assignee:

Simplicity Manufacturing, Inc. - Port Washington WI

International Classification:

A01D 3474

US Classification:

56 171

Abstract:

A steering and suspension system for a ride-on mower. A wheel is connected to a spindle and rotates about a first axis of rotation. The spindle is coupled to a frame and rotates about a second axis of rotation that is inclined from vertical backward substantially along a longitudinal axis of the ride-on mower. A level adjusting device is coupled to a steering component of the ride-on mower and is also coupled to a lawn mower accessory. The level adjusting device offsets vertical displacements caused by the inclined spindles, thereby allowing the accessory to stay level when turning the ride-on mower.

US Patent:

50943260, Mar 10, 1992

Filed:

Sep 24, 1990

Appl. No.:

7/587321

Inventors:

Michael P. Schemelin - West Bend WI
Kenneth H. Klas - Port Washington WI
Daniel W. Schaefer - Port Washington WI

Assignee:

Simplicity Manufacturing, Inc. - Port Washington WI

International Classification:

B60K 4122
B60K 2000

US Classification:

192363

Abstract:

A control linkage for controlling the speed and direction of a hydrostatic transmission in a lawn and garden tractor. A directional control arm, coupled to a dash mounted direction and speed control lever, pivots relative to the hydrostatic transmission in response to movement of the direction and speed control lever. A cam roller on the directional control arm engages a cam plate mounted on the control input shaft of the hydrostatic transmission so as to rotate the control input shaft in response to movement of the direction and speed control lever. A detent adjacent the transmission and engaging the cam plate fixes the position of the cam plate to eliminate backlash and avoid vehicle "creep" when the direction and speed control lever is placed in "neutral. " An additional cam, responsive to engagement of a vehicle clutch/brake system automatically places the transmission in "neutral" when the clutch/brake system is engaged.

US Patent:

40684520, Jan 17, 1978

Filed:

Mar 11, 1976

Appl. No.:

5/666046

Inventors:

Daniel W. Schaefer - Port Washington WI
Kenneth H. Klas - Port Washington WI

Assignee:

Allis-Chalmers Corporation - Milwaukee WI

International Classification:

A01D 6908
A01D 6910

US Classification:

56 116

Abstract:

A braking arrangement for use with rotary mowers of the type comprising a pair of spaced apart arbors, each supporting for rotation a spindle having a mower blade mounted on the lower end thereof. A driven pulley is secured to the upper end of each spindle. The two driven pulleys are driven by a common drive belt. An idle pulley is movable either into tensioning or nontensioning relation to the drive belt to cause said belt to be in either driving or nondriving relation to the driven pulleys. To prevent coasting of the two mower blades and of the drive belt upon movement of the idler pulley to a nontensioning position, a rod-like pivoted brake member is provided which has a common braking cooperation with both driven pulleys. A biasing spring constantly urges the brake member toward braking position. A nonadjustable disabling link moves with movement of the idler pulley support arm so that when the idler pulley is moved to belt tensioning position the disabling link pivotally moves the brake member against the force of its biasing spring to a nonbraking position.