Gert H Burkhardt

US Patent:

6666701, Dec 23, 2003

Filed:

Jul 22, 2002

Appl. No.:

10/201414

Inventors:

Gert Burkhardt - Pasadena CA
Mona-Lisa Alexander - San Marino CA

Assignee:

Signet Scientific Company - El Monte CA

International Classification:

H01R 1362

US Classification:

439314, 439321

Abstract:

A bayonet-type connector assembly for releasably securing a first connector half to a second connector half along a connection axis by simple rotation of a bayonet nut. Each connector half includes a plurality of electrical contacts. The bayonet nut encircles the second connector half. Rotation of the nut to a closed position causes a thread segment on the nut to engage corresponding grooved segments formed in the first connector half, to mate the connector halves, enabling electrical contact between the connector halves. Rotation of the bayonet nut also slides a slidable portion, i. e. , a nut cam, beneath a cam of the second connector half to prevent axial separation of the two connector halves. The connector assembly further includes a detent positioned to engage a securement on one of the cams to releasably lock the nut in the closed position.

US Patent:

6854053, Feb 8, 2005

Filed:

May 2, 2001

Appl. No.:

09/848011

Inventors:

Gert H. Burkhardt - Pasadena CA, US
Craig Stephen Trommler - Romoland CA, US
Ronald John Yates - Long Beach CA, US
Albert Hai Zhou - La Puente CA, US

Assignee:

Signet Scientific Company - ElMonte CA

International Classification:

G06F013/10
G06F013/20
G06F012/00

US Classification:

713 2, 709208, 709239, 370457, 370465, 370475, 34082552

Abstract:

A method of identifying a plurality of slave processors using a master processor is provided which includes assigning a unique identification code to each of the plurality of slave processors, and transmitting an attention command from the master processor to the plurality of slave processors. The master processor then transmits a request for the slaves' unique identification code to the plurality of slave processors. The master processor then determines whether one of the plurality of slave processors unique identification code matches the classification characters. If there are no matches, a last added classification character is incremented by 1. If only one matches, the master processor identifies the one of the plurality of slave processors, and removes a last added classification character. Otherwise, if more than one matches, the master processor adds a new classification character, and sets a last added classification character to a minimum identification code character value.

US Patent:

7055396, Jun 6, 2006

Filed:

Mar 28, 2005

Appl. No.:

11/092460

Inventors:

Anthony Thai - Orange CA, US
Gert Burkhardt - Pasadena CA, US

Assignee:

George Fischer Signet, Inc. - El Monte CA

International Classification:

G01F 1/58

US Classification:

7386112

Abstract:

A sensor assembly for a magnetic flowmeter is provided that is cost-effective to manufacture, while incorporating an effective seal against leakage and enabling precise positioning of electrodes. The sensor assembly includes an electrode assembly and a plastic housing molded about the electrode assembly. The electrode assembly includes an electrode and a plastic base disposed about the lower end of electrode. The housing includes a wall in direct contact with the plastic base such that the tip of the electrode projects from the wall, facilitating a secure seal about the electrode. The sensor assembly further includes a magnetic assembly configured to provide a magnetic field extending beyond the wall of the housing.

US Patent:

7251877, Aug 7, 2007

Filed:

May 24, 2006

Appl. No.:

11/439770

Inventors:

Anthony Thai - Orange CA, US
Gert Burkhardt - Pasadena CA, US

Assignee:

George Fischer Signet, Inc. - El Monte CA

International Classification:

H01F 7/06

US Classification:

296021, 29858, 29856

Abstract:

A sensor assembly for a magnetic flowmeter is provided that is cost-effective to manufacture, while incorporating an effective seal against leakage and enabling precise positioning of electrodes. The sensor assembly includes an electrode assembly and a plastic housing molded about the electrode assembly. The electrode assembly includes an electrode and a plastic base disposed about the lower end of electrode. The housing includes a wall in direct contact with the plastic base such that the tip of the electrode projects from the wall, facilitating a secure seal about the electrode. The sensor assembly further includes a magnetic assembly configured to provide a magnetic field extending beyond the wall of the housing.

US Patent:

7550979, Jun 23, 2009

Filed:

May 29, 2007

Appl. No.:

11/754969

Inventors:

Qinming Zhou - Arcadia CA, US
Gert Burkhardt - Pasadena CA, US

Assignee:

Georg Fischer Signet LLC - El Monte CA

International Classification:

G01R 27/08

US Classification:

324693, 324439, 324442, 73 2503, 7333505, 702 45, 702 57

Abstract:

A system and related method are provided to calibrate for wire capacitance during use to minimize error in conductivity measurement of the target fluid. The system includes a signal generator configured to drive the conductivity cell and the temperature element, with an alternating current (AC) drive signal having variable parameter. The system further includes a processor assembly electrically coupled to the conductivity cell and the temperature element to calculate a conductivity value of the fluid. The conductivity value is a function of the values of the temperature measurement, the compensation measurement, and the raw conductivity measurement, thereby compensating the conductivity value for capacitance effects. In this manner, the system effectively compensates for capacitance attributable to wiring extending between the electrode and other electronics of the sensor, usable with wiring of varied and unknown lengths.

US Patent:

7799193, Sep 21, 2010

Filed:

Mar 5, 2007

Appl. No.:

11/681787

Inventors:

Steven Wells - Huntington Beach CA, US
Gert Burkhardt - Pasadena CA, US
Anthony Thai - Orange CA, US

Assignee:

Georg Fischer Signet LLC - El Monte CA

International Classification:

C25B 9/00
G01N 27/26
B23H 3/02

US Classification:

204433, 204400, 2042286, 204435

Abstract:

An electrochemical sensor is provided that includes a housing having an outer wall, a plurality of longitudinal walls disposed within the outer wall, and a reference chamber housing a reference electrode. The longitudinal walls define a plurality of longitudinal chambers. Ionic communication between the target fluid and the reference electrode passes sequentially through each of longitudinal chambers from a first longitudinal chamber to the reference chamber. In this manner, the sensor provides generally a long, tortuous flow path, or salt bridge, between the target fluid and the reference electrode, resulting in a high resistance factor for the sensor.

US Patent:

7867371, Jan 11, 2011

Filed:

Sep 21, 2006

Appl. No.:

11/533989

Inventors:

Steven Wells - Huntington Beach CA, US
Gert Burkhardt - Pasadena CA, US
Anthony Thai - Orange CA, US

Assignee:

Georg Fischer Signet, LLC - El Monte CA

International Classification:

G01N 27/30

US Classification:

204435, 204433, 204409, 2057875, 324438

Abstract:

An electrochemical sensor is provided that includes a housing defining a cavity for a reference electrolyte and defining an opening to the cavity configured to be proximate to a target fluid. The sensor further includes a junction plug comprising a porous material and a cross member impermeable to a target fluid positioned between the junction plug and the cavity. The cross member includes a planar portion disposed against the junction plug that defines an aperture to enable electrochemical communication between the target fluid and the reference electrolyte.

US Patent:

7909972, Mar 22, 2011

Filed:

Nov 28, 2006

Appl. No.:

11/564015

Inventors:

Steven Wells - Huntington Beach CA, US
Gert Burkhardt - Pasadena CA, US
Anthony Thai - Orange CA, US

Assignee:

Georg Fischer Signet LLC - El Monte CA

International Classification:

G01N 27/30

US Classification:

204433, 204435, 204409

Abstract:

An electrochemical sensor is provided that includes a housing having an outer wall, an axial bore circumscribed by the outer wall, and a barrier wall that aids in defining a reference cavity. The housing further including a plurality of cross members in spaced relation to one another disposed between the axial bore and the outer wall, each cross member defining an aperture. A junction plug is disposed at the distal end of the housing. The junction plug comprises a porous material that enables ionic flow through the junction plug. The sensor enables ionic communication between the target fluid and the reference electrode within the reference cavity through the apertures of the plurality of cross members. In this manner, the sensor provides generally a long, tortuous flow path, or salt bridge, between the target fluid and the reference electrode, resulting in a high resistance factor for the sensor.