Donald G Risko

US Patent:

44828608, Nov 13, 1984

Filed:

Apr 19, 1983

Appl. No.:

6/486807

Inventors:

Donald G. Risko - Monroeville PA

Assignee:

Extrude Hone Corporation - Irwin PA

International Classification:

G01R 2726

US Classification:

324 61P

Abstract:

An improved probe is provided for surface texture capacitive gauging. One embodiment of the probe comprises a sensor assembly with a thin, flexible dielectric having a conductive coating to provide an active sensor area and integral lead-in which is durable, flexible, and constant. In another embodiment, a bladder-like flexible dielectric contains a conductive media and the bladder is appropriately confined to define the active sensor area. The probe includes a mask to further define the active sensor area and to sense proper seating of the probe on the work surface to be gauged.

US Patent:

49085743, Mar 13, 1990

Filed:

Jul 29, 1988

Appl. No.:

7/225820

Inventors:

Lawrence J. Rhoades - Pittsburg PA
Donald Risko - Monroeville PA
Ralph L. Resnick - Slickville PA

Assignee:

Extrude Hone Corporation - Irwin PA

International Classification:

G01B
G01B 734

US Classification:

324675

Abstract:

A sensor for sensing and quantifying the conformity of a workpiece surface contour to a predetermined design contour. The sensor consists of an array of capacitor elements on a surface having the negative image of the predetermined design contour, against which the workpiece is mated. In operation, each of the capacitor elements and the workpiece are connected to a corresponding oscillator circuit so that the frequency of each circuit is a function of the capacitance between the individual plate element and the workpiece, while the capacitance is a function of the distance between the individual plate element and the workpiece. Hence the overall output of the circuits is a function of the conformity of the workpiece surface contour to the contour or topology of the sensor surface.

US Patent:

44220359, Dec 20, 1983

Filed:

Dec 11, 1981

Appl. No.:

6/329943

Inventors:

Donald G. Risko - Monroeville PA

Assignee:

Extrude Hone Corporation - Irwin PA

International Classification:

G01R 2726

US Classification:

324 61P

Abstract:

An improved probe is provided for surface texture capacitive gauging. One embodiment of the probe comprises a sensor assembly with a thin, flexible dielectric having a conductive coating to provide an active sensor area and integral lead-in which is durable, flexible, and constant. In another embodiment, a bladder-like flexible dielectric contains a conductive media and the bladder is appropriately confined to define the active sensor area. The probe may include a grounded mask to further define the active sensor area.

US Patent:

47663898, Aug 23, 1988

Filed:

Sep 3, 1986

Appl. No.:

6/903178

Inventors:

Lawrence J. Rhoades - Pittsburgh PA
Donald Risko - Monroeville PA
Ralph L. Resnick - Slickville PA

Assignee:

Extrude Hone Corporation - Irwin PA

International Classification:

G01B 728
G01B 734

US Classification:

324 61QS

Abstract:

An arrangement for a tactile sensing system involved in the determination of object shape, contour, orientation and detection of slip finding one use in real time control of robotically manipulated tools. The sensor uses contact between the object and a gripper upon which the sensor is disposed wherein the object surface forms one plate of the sensing electrode.