Donald E Schuele, 894892 Countryside Rd, Cleveland, OH 44124

4562722, Jan 7, 1986

Aug 10, 1984

6/639576

Donald E. Schuele - Lyndhurst OH
John W. Wilhelm - Moreland Hills OH

Skidmore-Wilhelm Manufacturing Co. - Cleveland OH

G01L 524
G01L 2500

73 11

A torque calibrator allowing the accurate calibration of impact type wrenches. The calibrator measures the displacement of a heavy fixed beam in its natural oscillation mode. The beam has a long period of natural oscillation and an elastically soft segment preventing generation of rebound signals sometimes seen in stiff systems.

6255954, Jul 3, 2001

May 24, 1999

9/317506

Robert W. Brown - Solon OH
Yu-Chung Norman Cheng - Richmond Heights OH
William C. Condit - Strongsville OH
Donald E. Schuele - Lyndhurst OH

Reid Asset Management Company - Willoughby OH

G08B 2100

340603

The present invention includes a method of detecting contamination in a fluid sample includes bringing a fluid sample into contact with a pair of spaced apart electrodes and applying a plurality of voltages across the electrodes, wherein the plurality of voltages vary in magnitude between a first and second voltage level. The current is then measured between the electrodes at the plurality of voltages and a contamination level is determined using the measured currents. The present invention also includes a system for determining a particulate contamination level in a fluid sample. The system includes a sensor including a pair of spaced apart electrodes, wherein the fluid sample is brought into contact with the electrodes for detection of the level of particulate contamination therein, and a voltage application means for applying a voltage across the spaced apart electrodes. The system also further includes a current sensor coupled to one of the electrodes. The current sensor measures a current magnitude between the electrodes and the current magnitude is associated with the particulate contamination level in the fluid sample.