| Patent Number |
Title Of Patent |
Date Issued |
| RE40128 |
Stabilization in a radar level gauge |
March 4, 2008 |
| A radar gauge adapted to sense fluid level in a tank and including a radar gauge circuit in which radar transmission and level sampling are controlled by a transmit frequency and a sample frequency respectively. A first frequency separation between first and second frequencies is con |
| RE30603 |
Two wire current transmitter responsive to a resistance sensor input signal |
May 5, 1981 |
| Circuitry including a resistance sensor is excited by an external power source. A reference voltage is established, the voltage developed across the sensor resistance is compared at an amplifier input with a reference voltage signal and the voltage across a feedback resistor, and the tot |
| RE30597 |
Two wire current transmitter responsive to a resistive temperature sensor input signal |
May 5, 1981 |
| Circuitry including a resistance sensor is excited by an external power source. A reference voltage is established, the voltage developed across the sensor resistance is compared at an amplifier input with a reference voltage signal and the voltage across a feedback resistor, and the tot |
| D528020 |
Process device |
September 12, 2006 |
|
| D479474 |
Process device |
September 9, 2003 |
|
| D472831 |
Single inlet base pressure instrument |
April 8, 2003 |
|
| D471829 |
Dual inlet base pressure instrument |
March 18, 2003 |
|
| D441672 |
Pressure transmitter with dual inlet base and economy housing |
May 8, 2001 |
|
| D439181 |
Pressure transmitter with dual inlet base and dual compartment housing |
March 20, 2001 |
|
| D439180 |
Pressure transmitter with single inlet base and single compartment housing |
March 20, 2001 |
|
| D439179 |
Pressure transmitter with single inlet base and dual compartment housing |
March 20, 2001 |
|
| D439178 |
Pressure transmitter with dual inlet base and single compartment housing |
March 20, 2001 |
|
| D439177 |
Pressure transmitter with single inlet base and economy housing |
March 20, 2001 |
|
| D415138 |
Window icon for a computer display |
October 12, 1999 |
|
| D401921 |
Computer display with a computer generated icon |
December 1, 1998 |
|
| D401232 |
Computer display with a computer generated icon |
November 17, 1998 |
|
| D400870 |
Computer display with a computer generated icon |
November 10, 1998 |
|
| D366218 |
Temperature transmitter housing |
January 16, 1996 |
|
| D358784 |
Flowmeter instrument |
May 30, 1995 |
|
| D358782 |
Housing for a multivariable transmitter |
May 30, 1995 |
|
| D350491 |
Large line size winged flowmeter design |
September 13, 1994 |
|
| D349862 |
Large line size flowmeter design |
August 23, 1994 |
|
| D349274 |
Clip for mounting electrical equipment on a rail |
August 2, 1994 |
|
| D346980 |
Pitot air data sensor |
May 17, 1994 |
|
| D345710 |
Aerodynamically shaped probe and strut |
April 5, 1994 |
|
| D345709 |
Aerodynamically shaped short probe |
April 5, 1994 |
|
| D345708 |
Aerodynamically shaped probe |
April 5, 1994 |
|
| D345109 |
Temperature transmitter housing |
March 15, 1994 |
|
| D343365 |
Small line size flowmeter |
January 18, 1994 |
|
| D343364 |
Small line size winged flowmeter |
January 18, 1994 |
|
| D342456 |
Decorative cap for a process transmitter |
December 21, 1993 |
|
| D318432 |
Pressure transmitter housing |
July 23, 1991 |
|
| D317269 |
Temperature transmitter housing |
June 4, 1991 |
|
| D317266 |
Pressure transmitter housing |
June 4, 1991 |
|
| D316975 |
Housing for a current to pressure transmitter |
May 21, 1991 |
|
| D297315 |
Compact differential pressure transmitter |
August 23, 1988 |
|
| D297314 |
Pressure transmitter housing |
August 23, 1988 |
|
| D296995 |
Pressure transmitter housing |
August 2, 1988 |
|
| D292401 |
Hand held digital communicator housing |
October 20, 1987 |
|
| D287827 |
Head for a differential pressure measuring and transmitting housing |
January 20, 1987 |
|
| D278316 |
Flowmeter flow tube |
April 9, 1985 |
|
| D278133 |
Flowmeter transmitter circuitry housing |
March 26, 1985 |
|
| D268173 |
Calibrator for two wire transmitters |
March 8, 1983 |
|
| 7415886 |
Pressure sensor with deflectable diaphragm |
August 26, 2008 |
| A pressure sensor for sensing a pressure of a process fluid includes a sensor body having a cavity formed therein. A deflectable diaphragm is positioned in the cavity and deflects in response to a pressure applied to the cavity. An electrode on the diaphragm forms a variable capacitor |
| 7412893 |
Redundant mechanical and electronic remote seal system |
August 19, 2008 |
| A redundant pressure transmitter for redundantly measuring pressure of a process fluid comprises a transmitter housing, transmitter circuitry, a remote seal assembly including a first pressure sensor, and a second pressure sensor positioned in the transmitter housing. The remote seal |
| 7409867 |
Pressure sensor using light source |
August 12, 2008 |
| A pressure sensor includes a structure that deforms in response to an applied pressure. A light source is directed at the structure. This provides a reflection from the structure. A sensor is arranged to sense the reflection and provide an output related to the applied pressure. |
| 7401522 |
Pressure sensor using compressible sensor body |
July 22, 2008 |
| A pressure sensor including a deformable sensor body formed of a compressible material. A deformation sensor is embedded in the deformable sensor body and has an electrical property which changes in response to deformation of the deformable sensor body. Electrical connections which e |
| 7385503 |
Self powered son device network |
June 10, 2008 |
| A network includes a plurality of wirelessly interconnected self-organizing network (SON) devices for relaying signals in a self-organizing network and a field device for originating output signals. The sensor is configured to transmit the output signals to at least one of the SON de |
| 7379792 |
Pressure transmitter with acoustic pressure sensor |
May 27, 2008 |
| A transmitter configured to measure a process variable of an industrial process, includes a pressure sensor configured to couple to a pressure of a fluid. An acoustic detector receives an acoustic signal from the fluid. Measurement circuitry coupled to the pressure sensor and the acousti |
| 7377176 |
Nano-particle modified fill fluid for pressure transmitters |
May 27, 2008 |
| A pressure transmitter for measuring a pressure of a process fluid includes a pressure sensor, a hydraulic relay system and a pressure sensor fill fluid. The pressure sensor senses the pressure of the process fluid, and the hydraulic relay system provides a communication channel betw |
