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Timothy R Pryor: Method and apparatus for detecting wear or breakage of tools and other objects. Diffracto, Larson and Taylor, December 13, 1983: US04420253 (16 worldwide citation)

To determine whether an object, such as a tool, is worn or broken, there is embedded in the object an elongate fiber optic. One end of the fiber optic is at a surface of the object and such that a second, light emitting end of said fiber optic is located within the body of said object and spaced a d ...


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Timothy R Pryor: Electro-optical and robotic casting quality assurance. Diffracto, Larson & Taylor, October 4, 1988: US04774751 (14 worldwide citation)

This invention relates to improvements in foundry procedures, particularly in-process and post process inspection with electro-optical sensor units. Principally addressed are: inspection of molds and cores to assure correctness and control procedures to abort pouring if the molds are not correct, in ...


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Rodger Reynolds, Donald A Clarke, Timothy R Pryor: Methods and apparatus for retroreflective surface inspection and distortion measurement. Diffracto, Larson and Taylor, April 27, 1993: US05206700 (12 worldwide citation)

A method for creating a retroreflective image of a surface (or transparent medium) is provided where the retroreflective image is produced by illuminating an area of the surface with light which is reflected therefrom to a retroreflector which returns this light to the surface area. At the surface a ...


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Timothy R Pryor, Omer L Hageniers, Walter J Pastorius, Nicholas Liptay Wagner, Donald A Clarke: Method and apparatus for determining physical characteristics of objects and object surfaces. Diffracto, Larson and Taylor, January 15, 1985: US04493554 (12 worldwide citation)

A method of determining physical characteristics of a surface. Light or other electromagnetic radiation is directed onto a first portion of a surface and the reflected radiation is received such as by a photodiode. The radiation is also directed onto at least two further portions of the surface and ...


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Timothy R Pryor: Coordinate measuring method and device using a contact member. Diffracto, Larson and Taylor, September 15, 1987: US04694184 (12 worldwide citation)

A method and device for sensing the presence and location of an object in a reference plane by directing light along a line perpendicular to the plane, defining a ring in that plane encircling said line of light, and sensing, by a change in the condition of the light, the presence of an object on th ...


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Electro-optical inspection of workpieces. Diffracto, April 8, 1981: GB2058344-A (12 worldwide citation)

Apparatus for inspecting an elongate workpiece such as a camshaft having cam lobes 140 and 141, comprises a pair of centres 5, 6 for supporting the camshaft, the centre 5 being driven by a motor 7 having a shaft encoder 170. A sensor head comprises a light source 130, a lens 145 for forming an image ...


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Timothy R Pryor: Coordinate measuring method and device. Diffracto, Larson and Taylor, June 5, 1984: US04453082 (11 worldwide citation)

A method and device for sensing the presence and location of an object in a reference plane by directing light along a line perpendicular to the plane, defining a ring in that plane encircling said line of light, and sensing, by a change in the condition of the light, the presence of an object on th ...


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Timothy R Pryor: Controlled machining of combustion chambers gears and other surfaces. Diffracto, Larson and Taylor, May 7, 1991: US05012574 (9 worldwide citation)

Methods and apparatus are provided for measuring cylinder head combustion chambers and for providing inputs to machines which can perform operations to assure that all combustion chambers are of a correct volume. Apparatus is provided for matching volumes in gear assemblies as well as for providing ...