Resources Contact Us Home
Kopec; James W.
St. Charles, IL
No. of patents:

Patent Number Title Of Patent Date Issued
8013615 Diagnostic circuit and method of testing a circuit September 6, 2011
A diagnostic circuit is configured for connecting to a unit under test that has a load and a sinusoidal source. The diagnostic circuit includes a voltage sensing device that has an input for sensing a signal, a first terminal for connecting to the load, a second terminal for connecting t
5119683 Solenoid controller with flyback pulses useful for diagnostics and/or control June 9, 1992
Measurement of fluid flow (or other fluid parameter) through a solenoid-actuated valve (12), and/or measurement of nominal operation of the valve itself, is achieved in one embodiment by modifying the amplitude of flyback pulses (48) generated by the solenoid. The degree of modificat
5053911 Solenoid closure detection October 1, 1991
A method and apparatus for electronically detecting when a solenoid has closed, or nearly closed, indirectly senses changes in the inductance of the solenoid's coil as the solenoid closes. When the inductance has changed by a selected amount, the solenoid is assumed to have closed, or

  Recently Added Patents
Systems and methods for switching supply load current estimation
Method of transmitting and receiving a paging message in a mobile communication system
Systems and methods for facilitating communication with foundation fieldbus linking devices
System and method for providing dynamic navigation through a property to a selected destination
Macrocyclic cysteine protease inhibitors and compositions thereof
Color image display device, color filter substrate, color pixel array substrate, and electronic device
Metal-doped oxide, method of preparing the same, and solid oxide electrolyte using the metal-doped oxide
  Randomly Featured Patents
External bus interface printed circuit board routing for a ball grid array integrated circuit package
Phase-shift masks and methods of fabrication
Electric press machine
Apparatus for checking the quality of preforms each having a body made of plastics material
Ground fault circuit interrupter (GFCI)
Dual key hole actuator apparatus and method
Solar heaters
Process for preparing tin tetrachloride
Method and apparatus for use of an offset stem connection
Ink for thermal ink jet recording