Timothy A Parkinson

Address:

3401 Eldorado Trl, Austin, TX 78739

Phone:

512 282-3042

VIN:

5GZCZ33Z57S852260

Make:

SATURN

Model:

VUE

Year:

2007

US Patent:

7319387, Jan 15, 2008

Filed:

Mar 17, 2004

Appl. No.:

10/802345

Inventors:

Corey M. Willson - Dripping Springs TX, US
Ziyad Hanna Doany - Austin TX, US
Timothy A. Parkinson - Austin TX, US

Assignee:

3M Innovaative Properties Company - St. Paul MN

International Classification:

G08B 1/08

US Classification:

34053913, 3405391, 34053911, 3405392, 34082536, 34082549, 342385, 342459

Abstract:

A system for locating a position marker includes a locating device for locating the position marker, and a GPS device communicatively coupled to the locating device that provides GPS coordinate data when the position marker is located by the locating device. Electronic memory is provided in at least one of the locating device and the GPS device for storing a data record associating the GPS coordinate data with the located position marker.

US Patent:

20130099790, Apr 25, 2013

Filed:

Oct 21, 2011

Appl. No.:

13/278991

Inventors:

Ziyad H. Doany - Austin TX, US
Timothy A. Parkinson - Austin TX, US

International Classification:

G01V 3/12
H01Q 21/28

US Classification:

324326, 343728

Abstract:

A portable locator for locating an obscured marker. The locator includes a portable locator housing, a first antenna disposed within the housing, a second antenna disposed orthogonally to the antenna within the housing; and a processor. The processor is configured to interact with each of the first and second antennas, such that each of the first and second antennas is configured to transmit and receive signals. The locator may include more than two antennas, and may include multiple sets of antennas.

US Patent:

54303796, Jul 4, 1995

Filed:

Aug 27, 1993

Appl. No.:

8/113220

Inventors:

Timothy A. Parkinson - Austin TX
Ziyad H. Doany - Austin TX

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

G01V 308
G01V 312
G01V 315

US Classification:

324329

Abstract:

An adapter for a conventional conductor locator allows the locator to additionally detect the presence of passive, electronic markers. The adapter includes an electronic marker locator and a wireless interface housed in a common body which may be releasably attached to the conductor locator. The electronic marker locator, which may comprise conventional circuitry, outputs a marker detection signal to the wireless interface, which conditions the signal so that it is compatible with the input sensor of the conductor locator. The wireless interface includes an output antenna which is positioned adjacent the input sensor of the conductor locator when the adapter is attached thereto. If the conductor locator is of the type which may receive test signals at different operating frequencies, then the wireless interface also includes a modulator to selectively convert the marker detection signal to one of these operating frequencies. The electronic marker locator portion of the adapter may also be selectively adjusted to detect different discrete marker frequencies. The adapter may operate in a sleep mode, wherein the output signal of the wireless interface is disabled, but the wireless interface may still alert the user to the presence of an electronic marker by an audible alarm.