Patents by Inventor Donald G. Clark
Donald G. Clark has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9550256Abstract: Processing used pistons includes receiving defective and non-defective pistons removed from service, sorting the used pistons into standard and expanded processing categories, and repairing a defect in pistons in the expanded processing category via welding. An inventory of interchangeable replacement pistons is populated with remanufactured pistons from both the standard and expanded processing categories.Type: GrantFiled: December 6, 2013Date of Patent: January 24, 2017Assignee: Caterpiller Inc.Inventor: Donald G. Clark
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Patent number: 9488076Abstract: A method of remanufacturing a rocker arm having a body defining a socket portion is disclosed. The method includes machining the socket portion to remove a worn surface and form a seat configured to receive an insert member therein. The method further includes disposing the insert member within the seat and coupling the insert member to the seat.Type: GrantFiled: September 9, 2014Date of Patent: November 8, 2016Assignee: Caterpillar Inc.Inventors: Taylor Young, Jonathan R. Eggemeyer, Donald G. Clark, Curtis J. Graham
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Publication number: 20160069222Abstract: A method of remanufacturing a rocker arm having a body defining a socket portion is disclosed. The method includes machining the socket portion to remove a worn surface and form a seat configured to receive an insert member therein. The method further includes disposing the insert member within the seat and coupling the insert member to the seat.Type: ApplicationFiled: September 9, 2014Publication date: March 10, 2016Applicant: Caterpillar Inc.Inventors: Taylor Young, Jonathan R. Eggemeyer, Donald G. Clark, Curtis J. Graham
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Publication number: 20150108828Abstract: A method of remanufacturing a wheel housing flange is provided. The wheel housing flange includes a hole configured to receive a fastener, the hole extending from a first face of the wheel housing flange to a second face of the wheel housing flange. The method includes machining the hole to a machined diameter larger than an original diameter. The method further includes securing a first insert in the hole adjacent to the first face. The method further includes securing a second insert in the hole adjacent to the second face.Type: ApplicationFiled: October 21, 2013Publication date: April 23, 2015Applicant: Caterpillar Inc.Inventors: Donald G. Clark, Kristin A. Schipull, Deven J. Efta, Sheldon Lee David Zick, Jamie Krank
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Publication number: 20150107545Abstract: A method of remanufacturing an engine is provided. The method includes drilling a cylinder block to form at least one opening. The method further includes tapping the at least one opening to form screw threads. The method further includes securing a mounting boss to the cylinder block using the screw threads.Type: ApplicationFiled: October 21, 2013Publication date: April 23, 2015Applicant: Caterpillar Inc.Inventors: Curtis J. Graham, Adam W. Ostein, Jonathan R. Eggemeyer, Donald G. Clark
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Publication number: 20150105212Abstract: A method for salvaging a surface of a pin-bore assembly associated with a carrier is provided. The method includes inserting a sleeve within a bore of the carrier. The method also includes installing a retention mechanism that secures the sleeve within the bore of the carrier.Type: ApplicationFiled: October 14, 2013Publication date: April 16, 2015Applicant: Caterpillar Inc.Inventors: Curtis J. Graham, Donald G. Clark, Deven J. Efta, Charles G. Leeper, Jamie L. Krank, Kristin A. Schipull
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Publication number: 20140166513Abstract: Processing used pistons includes receiving defective and non-defective pistons removed from service, sorting the used pistons into standard and expanded processing categories, and repairing a defect in pistons in the expanded processing category via welding. An inventory of interchangeable replacement pistons is populated with remanufactured pistons from both the standard and expanded processing categories.Type: ApplicationFiled: December 6, 2013Publication date: June 19, 2014Applicant: Caterpillar, Inc.Inventor: Donald G. Clark
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Patent number: 4516309Abstract: Apparatus for assembling electrical connectors onto multiconductor electrical cable, the cable being a jacketed cable, comprises a table movable in opposite directions along two mutually perpendicular paths relative to a cable gripper mechanism, the table carrying a cable stripper mechanism and a press with a device for feeding a strip of connectors to the press. The table is arranged to move cyclically in such a way that, first, a cable held by the gripper mechanism has the jacket stripped from an end portion thereof by the stripper mechanism, whereafter the leading connector of the strip is held in the press and moved onto the end of the cable and is connected thereto by the press.Type: GrantFiled: April 13, 1984Date of Patent: May 14, 1985Assignee: AMP IncorporatedInventor: Donald G. Clark
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Patent number: 4182575Abstract: The invention provides novel apparatus for detecting and marking defects in flat glass advancing on a conveyor, for example a ribbon of float glass. There are two viewing stations on opposite sides of the center of the conveyor and spaced longitudinally so that there is staggered viewing of the two halves of the width of the advancing glass. Light reflected obliquely through each half is received on a viewing screen mounted above the respective side of the conveyor. Images of defects are recognized by examiners or cameras viewing the screens and the defects are marked by operation of appropriate marker guns positioned above the conveyor.Type: GrantFiled: May 17, 1978Date of Patent: January 8, 1980Assignee: Pilkington Glass Industries LimitedInventors: Donald G. Clark, Anthony Preston
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Patent number: 4123932Abstract: An improved dosimeter for monitoring working areas in which air, preferably in a relatively large volume, is pumped through the dosimeter at a controlled constant flow and any particles or vapors in the air are collected on a filter, the improvement is the use ofA variable drive pump connected to the filter and driven by an electric motor and controlled by a feed back circuit of an integrator and an amplifier and the pump maintains a constant flow of air through the dosimeter;In the operation of the dosimeter the integrator receives a signal from a pressure switch that detects changes in the flow of the air stream through the dosimeter by a change in a pressure drop of the air which is being pumped through an orifice;The dosimeter is placed in a work area and at the termination of a period of time, such as a work day, the filter is removed and the contents collected are analyzed by conventional techniques such as gas chromatography to determine a level of exposure of individuals working in that area.Type: GrantFiled: May 25, 1977Date of Patent: November 7, 1978Assignee: E. I. Du Pont de Nemours and CompanyInventors: William B. Baker, Donald G. Clark
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Patent number: 4063824Abstract: An improved chemical dosimeter for individual use which collects on a filter particles or vapors present in an air stream which is being pumped through the dosimeter at a constant rate, the improvement is the use ofA variable drive pump that is connected to the filter and that is driven by an electric motor and is controlled by a feed back circuit of an integrator and an amplifier and maintains a constant flow of air through the dosimeter;The integrator receives a signal from a pressure switch that detects changes in the flow of the air stream through the dosimeter by a change in a pressure drop of the air which is being pumped through an orifice;The dosimeter is worn by an individual and at the termination of a period of time, such as a work day, the filter is removed and the collected contents are analyzed by conventional techniques such as gas chromatography to determine a level of exposure of the individual using the dosimeter.Type: GrantFiled: August 5, 1975Date of Patent: December 20, 1977Assignee: E. I. Du Pont de Nemours and CompanyInventors: W. Barry Baker, Donald G. Clark