Patrick J Griesemer

US Patent:

6522094, Feb 18, 2003

Filed:

Nov 21, 2000

Appl. No.:

09/718015

Inventors:

Patrick J. Griesemer - Franklin WI
Christopher J. Wieloch - Brookfield WI
Kurt von Eckroth - Oconomowoc WI

Assignee:

Eaton Corporation - Cleveland OH

International Classification:

H02P 730

US Classification:

318430, 318471, 318434, 3889075

Abstract:

A motor overload coil control is disclosed for use in a motor starter/relay contactor. The control includes an 8-bit, 8-pin microcontroller that together with an I/O reduction circuit, is capable of functioning 13 I/Os with only 5 I/O pins on the microcontroller. Three remote signals are prioritized and reduced on one input line to the microcontroller. The control includes three-phase current measurement from three Hall effect current sensors positioned one on each leg. The system includes current integration to provide a single current input to the microcontroller. A full load amperage (FLA) adjustment allows use on a wide range of motors. The microcontroller uses the FLA adjustment and the current signal to find an appropriate I t value for real-time monitoring of the operating temperature of the motor. A status indicator is provided having an LED output to show the status of the system and indicate the motor temperature, when appropriate. After the coil is initially pulled in, the microcontroller generates a PWM signal to keep the appropriate coil pulled in with reduced power.

US Patent:

6806669, Oct 19, 2004

Filed:

Feb 5, 2003

Appl. No.:

10/358667

Inventors:

Patrick J. Griesemer - Franklin WI
Christopher J. Wieloch - Brookfield WI
Kurt von Eckroth - Oconomowoc WI

Assignee:

Eaton Corporation - Cleveland OH

International Classification:

H02P 730

US Classification:

318434, 388903, 388910

Abstract:

A motor overload coil control is disclosed for use in a motor starter/relay contactor. The control includes an 8-bit, 8-pin microcontroller that together with an I/O reduction circuit, is capable of functioning 13 I/Os with only 5 I/O pins on the microcontroller. Three remote signals are prioritized and reduced on one input line to the microcontroller. The control includes three-phase current measurement from three Hall effect current sensors positioned one on each leg. The system includes current integration to provide a single current input to the microcontroller. A full load amperage (FLA) adjustment allows use on a wide range of motors. The microcontroller uses the FLA adjustment and the current signal to find an appropriate I t value for real-time monitoring of the operating temperature of the motor. A status indicator is provided having an LED output to show the status of the system and indicate the motor temperature, when appropriate. After the coil is initially pulled in, the microcontroller generates a PWM signal to keep the appropriate coil pulled in with reduced power.

US Patent:

53591917, Oct 25, 1994

Filed:

Apr 16, 1993

Appl. No.:

8/048619

Inventors:

Patrick J. Griesemer - Greenfield WI
William B. McHenry - Sun Prairie WI

Assignee:

Spacesaver Corporation - Fort Atkinson WI

International Classification:

G01V 904

US Classification:

250221

Abstract:

A presence detector for use with a mobile storage system including at least a first movable storage unit with a prime mover adapted to move the shelving unit along a path of movement, and at least one blocking object, such as a second movable storage unit, a stationary storage unit or a wall, positioned on the path. The presence detector detects the presence of an obstacle in the path of movement and discontinues movement of the first unit while the obstacle is in the path of movement. The presence detector includes at least one light source mounted to either the first unit or the blocking object so as to provide light into the path of movement. At least one light detector is mounted to the blocking object or first unit, respectively, opposite the light source. A control unit is connected to the light detector and receives a signal from the light detector, that signal indicating whether or not the light detector is receiving light from the light source. The control unit disables the prime mover from moving the first storage unit along the path when the signal is received from the light detector indicating that light is not being received from the light source.

US Patent:

54274443, Jun 27, 1995

Filed:

Jun 9, 1993

Appl. No.:

8/074437

Inventors:

Patrick J. Griesemer - Greenfield WI

Assignee:

Spacesaver Corporation - Fort Atkinson WI

International Classification:

A47B 5300

US Classification:

312201

Abstract:

A directional detector for use with a mobile storage system including at least a first movable storage unit with a prime mover adapted to move the shelving unit along a path of movement, and at least one blocking object, such as a second movable storage unit, a stationary storage unit or a wall, positioned on the path, there being an aisle formed therebetween. The directional detector detects the entry of an obstacle into the aisle and prevents movement of the first unit until the obstacle is detected to have left the aisle. The detector includes two light source-detector pairs, the source and detector of each pair mounted to each of the first unit and the blocking object on opposite sides of the aisle, and facing each other. A control unit is connected to the light detectors of the pairs and receives signals therefrom, indicating whether or not the detectors are receiving light from the sources. The control unit uses this information to determine the direction the obstacle moved, either into or out of the aisle.

US Patent:

55699103, Oct 29, 1996

Filed:

Nov 10, 1994

Appl. No.:

8/338006

Inventors:

Patrick J. Griesemer - Franklin WI

Assignee:

Spacesaver Corporation - Fort Atkinson WI

International Classification:

G01V 904

US Classification:

250221

Abstract:

Obstacles are protected against collision in aisles adjacent mobile storage units with an IR transmitter mounted in spaced apart relation to an IR receiver on a unit. For initializing and calibrating the system a microcomputer controls the transmitter to emit IR pulses of increasing width at a uniform repetition rate. If there is no defect in the system the receiver responds with output electric pulses after the IR pulse width is reached that has the minimum integrated energy to exceed the input signal threshold of the receiver. The minimum energy pulse width is stored in the microcomputer and the system switches to a run mode allowing storage units to move when commanded. The computer responds to the absence of returned pulses from the receiver by inhibiting the system so the mobile unit will not run. If returned pulses are not in the proper phase relationship the system goes into a diagnostic mode wherein the interval between transmitted IR pulses is reduced in increments for reasons including determining if there may only be temporary ambient IR interference. If the problem does not clear up by the time the interval is reduced to one-half normal interval the system locks out.

US Patent:

62081004, Mar 27, 2001

Filed:

Mar 12, 1999

Appl. No.:

9/267980

Inventors:

Patrick J. Griesemer - Franklin WI
Christopher J. Wieloch - Brookfield WI
Kurt von Eckroth - Oconomowoc WI

Assignee:

Eaton Corporation - Cleveland OH

International Classification:

H02P7/30

US Classification:

318434

Abstract:

A motor overload coil control is disclosed for use in a motor starter/relay contactor. The control includes an 8-bit, 8-pin microcontroller that together with an I/O reduction circuit, is capable of functioning 13 I/O's with only 5 I/O pins on the microcontroller. Three remote signals are prioritized and reduced on one input line to the microcontroller. The control includes three-phase current measurement from three Hall effect current sensors positioned one on each leg. The system includes current integration to provide a single current input to the microcontroller. A full load amperage (FLA) adjustment allows use on a wide range of motors. The microcontroller uses the FLA adjustment and the current signal to find an appropriate I. sup. 2 t value for real-time monitoring of the operating temperature of the motor. A status indicator is provided having an LED output to show the status of the system and indicate the motor temperature, when appropriate.

Address:

7151 S 35 St, Franklin, WI 53132

VIN:

1HD1HFZ1X7K801611

Make:

Cadillac

Model:

Escalade ESV AWD 4dr

Year:

2007