Patents by Inventor Ernest R. Siler
Ernest R. Siler 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: 7267616Abstract: A method for making a ball-nut includes cutting a 360-degree closed-loop surface groove in the inner-circumferential wall portion of a ball-nut body using a whirling-type internal-diameter cutting machine. The closed-loop surface groove surrounds the longitudinal axis of the wall portion, is adapted for receiving a plurality of ball bearings, includes a helical-grooved portion substantially coaxially aligned with the longitudinal axis, and includes a crossover-grooved portion. A method for making a ball-screw includes cutting at least one 360-degree closed-loop surface groove in the outer-circumferential wall portion of a ball-screw body using a whirling-type external-diameter cutting machine. The closed-loop surface groove surrounds the longitudinal axis of the wall portion, is adapted for receiving a plurality of ball bearings, includes a helical-grooved portion substantially coaxially aligned with the longitudinal axis, and includes a cross-under-grooved portion.Type: GrantFiled: June 20, 2005Date of Patent: September 11, 2007Assignee: Delphi Technologies, Inc.Inventors: Ernest R. Siler, Ronald G. Smith, Kathleen Murphy, David B. Drennen, Patrick A. Mescher, Thomas J. Bucholz
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Patent number: 6813970Abstract: A ball-nut assembly includes a ball nut and a crossover member. The ball nut incudes a radial through slot and an outer surface. The outer surface has a first portion, has a ledge radially recessed from the first portion and at least partially bounding the through slot, and has an undercut wall connecting the ledge and the first portion. The crossover member has a flange and a crossover-grooved portion. A method for making a ball-nut assembly positions the crossover member from outside the ball nut to have the flange supported by the ledge and the crossover-grooved portion located in the through slot. The method also deforms the flange creating a staked portion of the flange which contacts the undercut wall of the outer surface of the ball nut.Type: GrantFiled: November 15, 2001Date of Patent: November 9, 2004Assignee: Delphi Technologies, Inc.Inventors: Ernest R. Siler, David B. Drennen
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Publication number: 20040016607Abstract: An electric mechanical brake assembly includes a brake caliper housing, a ballscrew subassembly at least partially located within the housing, first and second electric motors, and at least one timing belt. A linearly-movable member of the ballscrew subassembly is attachable to a brake pad and is driven by a rotatable actuation shaft of the ballscrew subassembly. The timing belt operatively connects the drive shafts of the electric motors to the actuation shaft of the ballscrew subassembly. An electric-mechanical-brake motor subassembly includes first and second electric motors, a motor plate, and at least one timing belt. The electric motors are attached to the motor plate, and the motor plate is attachable to a brake caliper housing. The timing belt is operatively connectable to the motor drive shafts and to a rotatable actuation shaft, of a ballscrew subassembly at least partially located within the housing, for the drive shafts to rotate the actuation shaft.Type: ApplicationFiled: July 25, 2002Publication date: January 29, 2004Inventors: David B. Drennen, Gary C. Fulks, Ernest R. Siler, Bryan P. Riddiford
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Patent number: 6668551Abstract: An actuator assembly for a vehicle brake system or clutch pack comprises a motor shaft having a first tapered cutout, and a ballscrew shaft having a second tapered cutout. The first and second tapered cutouts being adapted to mate.Type: GrantFiled: October 3, 2001Date of Patent: December 30, 2003Assignee: Delphi Technologies, Inc.Inventors: John B. Hageman, Ernest R. Siler, Paul Rymoff, Ernst S. Baumgartner, Harald Klode
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Publication number: 20030205437Abstract: An electric mechanical brake assembly includes a brake caliper housing, a ballscrew subassembly at least partially located within the housing, first and second electric motors, and at least three gears. A linearly-movable member of the ballscrew subassembly is attachable to a brake pad and is driven by a rotatable actuation shaft of the ballscrew subassembly. The gears operatively connect the drive shafts of the electric motors to the actuation shaft of the ballscrew subassembly. An electric-mechanical-brake motor subassembly includes first and second electric motors, a motor plate, and at least three gears. The electric motors are attached to the motor plate, and the motor plate is attachable to a brake caliper housing. The gears are operatively connectable to the motor drive shafts and to a rotatable actuation shaft, of a ballscrew subassembly at least partially located within the housing, for the drive shafts to rotate the actuation shaft.Type: ApplicationFiled: May 2, 2002Publication date: November 6, 2003Inventors: David B. Drennen, Ernest R. Siler
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Patent number: 6626270Abstract: A brake caliper comprises a motor having a shaft, at least one first planetary gear, and at least one second planetary gear. The at least one first planetary gear is rotatably engaged with the shaft and with a piston, and is operatively engaged with a first carrier. The at least one second planetary gear is operatively engaged with the first stage carrier and with a second carrier. A ball screw is engaged with the second stage carrier for rotation therewith, and a ball screw nut is operatively engaged with the ball screw. A parking brake for the caliper is also provided.Type: GrantFiled: December 21, 2001Date of Patent: September 30, 2003Assignee: Delphi Technologies, Inc.Inventors: David B. Drennen, Ernest R. Siler, Gary C. Fulks, Douglas E. Poole
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Publication number: 20030116388Abstract: A brake caliper comprises a motor having a shaft, at least one first planetary gear, and at least one second planetary gear. The at least one first planetary gear is rotatably engaged with the shaft and with a piston, and is operatively engaged with a first carrier. The at least one second planetary gear is operatively engaged with the first stage carrier and with a second carrier. A ball screw is engaged with the second stage carrier for rotation therewith, and a ball screw nut is operatively engaged with the ball screw. A parking brake for the caliper is also provided.Type: ApplicationFiled: December 21, 2001Publication date: June 26, 2003Applicant: DELPHI TECHNOLOGIES INC.Inventors: David B. Drennen, Ernest R. Siler, Gary C. Fulks, Douglas E. Poole
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Publication number: 20030089188Abstract: A ball-nut assembly includes a ball nut and a crossover member. The ball nut incudes a radial through slot and an outer surface. The outer surface has a first portion, has a ledge radially recessed from the first portion and at least partially bounding the through slot, and has an undercut wall connecting the ledge and the first portion. The crossover member has a flange and a crossover-grooved portion. A method for making a ball-nut assembly positions the crossover member from outside the ball nut to have the flange supported by the ledge and the crossover-grooved portion located in the through slot. The method also deforms the flange creating a staked portion of the flange which contacts the undercut wall of the outer surface of the ball nut.Type: ApplicationFiled: November 15, 2001Publication date: May 15, 2003Inventors: Ernest R. Siler, David B. Drennen
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Publication number: 20030061933Abstract: An actuator assembly for a vehicle brake system or clutch pack comprises a motor shaft having a first tapered cutout, and a ballscrew shaft having a second tapered cutout. The first and second tapered cutouts being adapted to mate.Type: ApplicationFiled: October 3, 2001Publication date: April 3, 2003Applicant: DELPHI TECHNOLOGIES INC.Inventors: John B. Hageman, Ernest R. Siler, Paul Rymoff, Ernst S. Baumgartner, Harald Klode
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Patent number: 6367593Abstract: A ball screw assembly for a motor vehicle electric caliper comprises a ball screw, a carrier, and a ball screw nut. The ball screw has at least one internal groove, and the carrier has at least one projection engaging the at least one groove. The ball screw nut operatively engages the ball screw.Type: GrantFiled: August 22, 2001Date of Patent: April 9, 2002Assignee: Delphi Technologies, Inc.Inventors: Ernest R. Siler, David B. Drennen