David G Erickson

Address:

2918 Wellington Dr E, Eau Claire, WI 54703

Phone:

(715)8342115

VIN:

2CNDL63F576240038

Make:

CHEVROLET

Model:

EQUINOX

Year:

2007

US Patent:

7256692, Aug 14, 2007

Filed:

Dec 23, 2004

Appl. No.:

11/021646

Inventors:

Richard D. Vatsaas - Eagan MN, US
David B. Erickson - Farmington MN, US

Assignee:

Lockheed Martin Corporation - Bethesda MD

International Classification:

G08B 13/00

US Classification:

340550, 340540, 307116, 307147

Abstract:

One apparatus embodiment includes a patterned electrically conductive layer, a power source, and an actuator. The power source provides an electrical signal to the electrically conductive layer. The monitoring unit monitors the electrical signal and initiates an action based upon a change in the electrical signal.

US Patent:

8289163, Oct 16, 2012

Filed:

Sep 27, 2007

Appl. No.:

11/904616

Inventors:

David P. Erickson - Stillwater MN, US
Michele A. Waldner - Minneapolis MN, US
James P. McGee - Cedar MN, US
Swagata R. Banerjee - North Oaks MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

G08B 13/14

US Classification:

3405721, 3405727, 705 22, 705 28, 343795

Abstract:

The invention provides one or more signal line structures that produce an electromagnetic field having a magnitude of at least an interrogation threshold of a radio frequency identification (RFID) tag for a substantial portion of an interrogation region. The signal lines may be made from copper and laid across a shelf in a storage area. The electromagnetic field may cause the tag to backscatter radio frequency (RF) signals to an RFID reader via the signal line.

US Patent:

20020180588, Dec 5, 2002

Filed:

Jun 5, 2001

Appl. No.:

09/874749

Inventors:

David Erickson - Stillwater MN, US
William Kelliher - Lino Lakes MN, US
Robert Sainati - Bloomington MN, US
Michele Waldner - Minneapolis MN, US

International Classification:

H04Q005/22

US Classification:

340/010200

Abstract:

Various systems and methods of handling items such as files are disclosed, including systems and methods for polling RFID-tagged items while they are stored in storage areas.

US Patent:

20050190072, Sep 1, 2005

Filed:

Feb 26, 2004

Appl. No.:

10/788061

Inventors:

Katherine Brown - Lake Elmo MN, US
Catherine Behun - White Bear Lake MN, US
Kaileen Chen - White Bear Lake MN, US
David Erickson - Stillwater MN, US
Ronald Jesme - Plymouth MN, US
Orlin Knudson - Vadnais Heights MN, US
Robert Lorentz - North Oaks MN, US
James McGee - Cedar MN, US
Robert Sainati - Bloomington MN, US
Lucien Solefack - Inver Grove Heights MN, US
Justin Tungjunyatham - Falcon Heights MN, US
Christopher Yungers - St. Paul MN, US

International Classification:

G08B005/22

US Classification:

340825360

Abstract:

An item monitoring system and method of using an item monitoring system. The present invention relates more particularly to an item monitoring system including a sensor, that senses a plurality of items in a first amount of space associated with the sensor and that senses both items containing metal and items containing no metal, a communications network, and a computer that receives information from the sensor through the communications network. The present invention also relates more particularly to a method of monitoring items to determine the number of items within a first amount of space associated with the sensor.

US Patent:

20060071774, Apr 6, 2006

Filed:

Aug 22, 2005

Appl. No.:

11/209118

Inventors:

Katherine Brown - Lake Elmo MN, US
Catherine Behun - White Bear Lake MN, US
Kaileen Chen - White Bear Lake MN, US
David Erickson - Stillwater MN, US
Ronald Jesme - Plymouth MN, US
Orlin Knudson - Vadnais Heights MN, US
Robert Lorentz - North Oaks MN, US
James McGee - Cedar MN, US
Robert Sainati - Bloomington MN, US
Lucien Solefack - Inver Grove Heights MN, US
Justin Tungjunyatham - Falcon Heights MN, US
Christopher Yungers - St.Paul MN, US
Michael Hamerly - Vadnais Heights MN, US
Scott Pearson - Woodbury MN, US

International Classification:

G08B 19/00
G08B 1/00
G08B 21/00

US Classification:

340522000, 340531000, 340686600

Abstract:

An item monitoring system and method of using an item monitoring system. The present invention relates more particularly to an item monitoring system including a sensor, that senses a plurality of items in a first amount of space associated with the sensor and that senses both items containing metal and items containing no metal, a communications network, and a computer that receives information from the sensor through the communications network. The present invention also relates more particularly to a method of monitoring items to determine the number of items within a first amount of space associated with the sensor.

US Patent:

20090167502, Jul 2, 2009

Filed:

Dec 31, 2007

Appl. No.:

12/006284

Inventors:

David P. Erickson - Stillwater MN, US
James P. McGee - Cedar MN, US
Michele A. Waldner - Minneapolis MN, US
Ronald D. Jesme - Plymouth MN, US

International Classification:

G08B 13/14
G06K 7/00
H04Q 5/22

US Classification:

340 103, 340 101, 3405721, 340 1051

Abstract:

A Radio-Frequency Identification (RFID) system verifies proper placement and functionality of RFID tags with respect to particular end-use RFID systems at the time the RFID tag is applied to an item but before the item is deployed. A device for verifying a location and functionality of an RFID tag on an item includes an item holder, a power coupling mechanism attached to the item holder, and an RFID reader electrically connected to the power coupling mechanism. The power coupling mechanism creates a near field for transmission of read or write commands from the RFID reader to an RFID tag on an item placed on the item holder to verify the location and functionality of the RFID tag as applied to the item with respect to a near-field coupling mechanism of a particular end-use RFID system. The device may include additional power coupling mechanisms for testing the functionality of the tag.

US Patent:

56645805, Sep 9, 1997

Filed:

Jan 31, 1995

Appl. No.:

8/381517

Inventors:

David S. Erickson - Stillwater MN
Rudy Mazzocchi - Dellwood MN

Assignee:

Microvena Corporation - White Bear Lake MN

International Classification:

A61B 500

US Classification:

128772

Abstract:

The present invention provides a coil having at least distal and proximal coil segments, one of the segments being more radiopaque than at least one of the other segments. The guidewire includes an elongate wire which desirably extends along substantially the entire length of the coil and continues proximally of the coil. In a 2-segment coil, the distal end of the distal coil segment is attached to the wire, the proximal end of the distal segment is attached to the distal end of the proximal coil, and the proximal end of the proximal coil segment is attached to the wire. Otherwise, the coil floats freely with respect to the wire between the coil's distal and proximal ends. A method of making such a guidewire is also disclosed.

US Patent:

57556954, May 26, 1998

Filed:

May 11, 1995

Appl. No.:

8/439408

Inventors:

David S. Erickson - Stillwater MN
Andrew Feiring - Milwaukee WI

Assignee:

Microvena Corporation - White Bear Lake MN

International Classification:

A61M 5178

US Classification:

604164

Abstract:

A steering handle for guiding a medical guidewire and a catheter through a patient's vessels to a treatment site and a method of using the steering handle. The steering handle may be selectively converted to guide the guidewire and catheter either independently or together as a fixed unit. Additionally, a shaping device may be provided on the steering handle which a physician may use to shape a distal segment of the guidewire into a desired shape with ease and accuracy.