Patents by Inventor Randy Keller
Randy Keller 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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Publication number: 20240109222Abstract: Adjustable concrete forms, typically fabricated from steel, allowing variation in the height, tilt, and shape of the form of gravity wall sections. The adjustable concrete form includes adjustable height vertical and sloped walls to change the height of the form through the operation of built-in mechanical jacks, such as ball screw assemblies. The separation distances at top and bottom of the walls can be adjusted by upper connectors (e.g., tie bars) and lower connectors (e.g., base straps). The same adjustable concrete form is assembled, used to pour a gravity wall section, disassembled, repositioned, and reassembled a virtually unlimited number of times to create varying height, tilt, and shape gravity wall sections for mile after of roadway construction.Type: ApplicationFiled: September 29, 2022Publication date: April 4, 2024Applicant: RWH CONSTRUCTIONS SERVICES CO.Inventors: Randy HART, Joan LASTRA, Lance KELLER, Robert PORTUGUES, Torey KELLER
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Publication number: 20230256521Abstract: An example method includes performing a machining operation by providing linear movement of a tool along a feed axis relative to a workpiece while superimposing oscillation of the tool onto the feed axis and providing rotation of the tool relative to the workpiece. During an optimization mode, the machining operation is performed on a first workpiece portion while providing the linear movement at an initial feed velocity, and sequentially superimposing the oscillating at a plurality of different frequencies. An optimal oscillation frequency is determined from the plurality of different frequencies which causes the tool to apply less force to the first workpiece portion at the initial feed velocity than others of the frequencies. During a run mode, the machining operation is performed on a second workpiece portion having a same composition as the first workpiece portion while superimposing the oscillation at the optimal oscillation frequency.Type: ApplicationFiled: April 21, 2023Publication date: August 17, 2023Inventors: Randy Keller, J. Scott Myles, Colin Kelly Myles
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Patent number: 11660684Abstract: An example method includes performing a machining operation by providing linear movement of a tool along a feed axis relative to a workpiece while superimposing oscillation of the tool onto the feed axis and providing rotation of the tool relative to the workpiece. During an optimization mode, the machining operation is performed on a first workpiece portion while providing the linear movement at an initial feed velocity, and sequentially superimposing the oscillating at a plurality of different frequencies. An optimal oscillation frequency is determined from the plurality of different frequencies which causes the tool to apply less force to the first workpiece portion at the initial feed velocity than others of the frequencies. During a run mode, the machining operation is performed on a second workpiece portion having a same composition as the first workpiece portion while superimposing the oscillation at the optimal oscillation frequency.Type: GrantFiled: November 16, 2020Date of Patent: May 30, 2023Assignee: Quantum Impact, LLCInventors: Randy Keller, J. Scott Myles, Colin Kelly Myles
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Publication number: 20210060660Abstract: An example method includes performing a machining operation by providing linear movement of a tool along a feed axis relative to a workpiece while superimposing oscillation of the tool onto the feed axis and providing rotation of the tool relative to the workpiece. During an optimization mode, the machining operation is performed on a first workpiece portion while providing the linear movement at an initial feed velocity, and sequentially superimposing the oscillating at a plurality of different frequencies. An optimal oscillation frequency is determined from the plurality of different frequencies which causes the tool to apply less force to the first workpiece portion at the initial feed velocity than others of the frequencies. During a run mode, the machining operation is performed on a second workpiece portion having a same composition as the first workpiece portion while superimposing the oscillation at the optimal oscillation frequency.Type: ApplicationFiled: November 16, 2020Publication date: March 4, 2021Inventors: Randy Keller, J. Scott Myles, Colin Kelly Myles
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Patent number: 10864580Abstract: An example method includes performing a machining operation by providing linear movement of a tool along a feed axis relative to a workpiece while superimposing oscillation of the tool onto the feed axis and providing rotation of the tool relative to the workpiece. During an optimization mode, the machining operation is performed on a first workpiece portion while providing the linear movement at an initial feed velocity, and sequentially superimposing the oscillating at a plurality of different frequencies. An optimal oscillation frequency is determined from the plurality of different frequencies which causes the tool to apply less force to the first workpiece portion at the initial feed velocity than others of the frequencies. During a run mode, the machining operation is performed on a second workpiece portion having a same composition as the first workpiece portion while superimposing the oscillation at the optimal oscillation frequency.Type: GrantFiled: January 22, 2019Date of Patent: December 15, 2020Assignee: QUANTUM IMPACT, LLCInventors: Randy Keller, J. Scott Myles, Colin Kelly Myles
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Publication number: 20200256441Abstract: A blade assembly is disclosed herein that avoids the issues associated with aligning mating parts formed on blades with the shell during assembly. The blade assembly disclosed herein eliminates the need for embossments or pierced slots on the shell, and the need for mating tabs on the blades. In one embodiment, the blade assembly includes a shell defining an inner surface, and a plurality of blades arranged around the inner surface of the shell. The plurality of blades each include at least one axially extending leg adapted to contact the inner surface of the shell, and the plurality of blades are attached to the shell via brazing.Type: ApplicationFiled: February 11, 2019Publication date: August 13, 2020Applicant: Schaeffler Technologies AG & Co. KGInventors: Randy Keller, Rolf Mueller, Alexander Walton, Brian Riley
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Publication number: 20190224799Abstract: An example method includes performing a machining operation by providing linear movement of a tool along a feed axis relative to a workpiece while superimposing oscillation of the tool onto the feed axis and providing rotation of the tool relative to the workpiece. During an optimization mode, the machining operation is performed on a first workpiece portion while providing the linear movement at an initial feed velocity, and sequentially superimposing the oscillating at a plurality of different frequencies. An optimal oscillation frequency is determined from the plurality of different frequencies which causes the tool to apply less force to the first workpiece portion at the initial feed velocity than others of the frequencies. During a run mode, the machining operation is performed on a second workpiece portion having a same composition as the first workpiece portion while superimposing the oscillation at the optimal oscillation frequency.Type: ApplicationFiled: January 22, 2019Publication date: July 25, 2019Inventors: Randy Keller, J. Scott Myles, Colin Kelly Myles
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Patent number: 8882468Abstract: A blade family for torque converters with a first blade having a first shape and flow guiding surface and a second blade having a second shape and flow guiding surface. The first surface is different from the second surface and the first shape is the same as a portion of the second shape, or the second shape is the same as a portion of the second shape. In an example embodiment of the invention, at least one of the first or second blades includes holes or slots. In an example embodiment of the invention, the first blade includes more material than the second blade. The first and second blades may have respective mounting tabs, with the second blade having fewer mounting tabs than the first blade. Other example aspects of the present invention broadly comprise a torque converter with a plurality of first and/or second blades from the blade family.Type: GrantFiled: December 20, 2010Date of Patent: November 11, 2014Assignee: Schaeffler Technologies GmbH & Co. KGInventors: Michael Resh, Bhaskar Marathe, Cem Ersahin, Randy Keller
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Publication number: 20110150662Abstract: A blade family for torque converters with a first blade having a first shape and flow guiding surface and a second blade having a second shape and flow guiding surface. The first surface is different from the second surface and the first shape is the same as a portion of the second shape, or the second shape is the same as a portion of the second shape. In an example embodiment of the invention, at least one of the first or second blades includes holes or slots. In an example embodiment of the invention, the first blade includes more material than the second blade. The first and second blades may have respective mounting tabs, with the second blade having fewer mounting tabs than the first blade. Other example aspects of the present invention broadly comprise a torque converter with a plurality of first and/or second blades from the blade family.Type: ApplicationFiled: December 20, 2010Publication date: June 23, 2011Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KGInventors: Michael Resh, Bhaskar Marathe, Cem Ersahin, Randy Keller