Patents by Inventor James C. Sitter
James C. Sitter 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: 20250100123Abstract: An oscillating power tool includes an outer housing having a head portion and a handle portion extending therefrom, an inner housing within the outer housing, a first annular gap between the inner housing and the head portion of the outer housing, and a motor and a drive mechanism having an output shaft that oscillates and defines an output axis. The output shaft extends through an opening in the head portion and defines a second annular gap between the output shaft and the outer housing. The oscillating power tool also includes an over-travel limit member in the first annular gap. In response to relative movement between the inner housing and the outer housing, the over-travel limit member prevents contact between them. The over-travel limit member limits lateral movement of the inner housing relative to the outer housing in a direction transverse to the output axis.Type: ApplicationFiled: December 10, 2024Publication date: March 27, 2025Inventors: Jeffrey S. HOLLY, Jacob N. ZIMMERMAN, James C. SITTER, David A. BIERDEMAN, Andrew R. SCHAUER, You Gen LIU
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Patent number: 12186880Abstract: An oscillating power tool includes an outer housing, and an inner housing positioned within the outer housing. A motor and a drive mechanism are supported by the inner housing. The drive mechanism includes an output shaft that is rotational in an oscillating manner and that defines an output axis. A damping element is positioned between the inner housing and the outer housing through which the inner housing is mounted to the outer housing, thereby attenuating vibration transmitted to the outer housing from the inner housing. An over-travel limit member is positioned between the inner housing and the outer housing. In response to relative movement between the inner housing and the outer housing while the power tool is in use, the limit member is configured to prevent direct contact between the inner housing and the outer housing, inhibiting vibration produced by the motor and/or drive mechanism from bypassing the damping element.Type: GrantFiled: June 10, 2021Date of Patent: January 7, 2025Assignee: MILWAUKEE ELECTRIC TOOL CORPORATIONInventors: Jeffrey S. Holly, Jacob N. Zimmerman, James C. Sitter, David A Bierdeman, Andrew R. Schauer, You Gen Liu
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Publication number: 20240375260Abstract: An oscillating power tool has a housing including a handle portion defining a handle axis and a head portion defining an output axis that is perpendicular to the handle axis. The head portion includes a front face intersected by the handle axis. A drive mechanism includes an output shaft configured to oscillate about the output axis in a rotational manner in response receiving torque from a motor. A lighting assembly is configured to illuminate a workpiece in front of the head portion of the housing. The lighting assembly includes a lens arranged on the front face of the housing, a holder coupled to the lens, a plurality of printed circuit boards supported by the holder, and an LED arranged on each of the printed circuit boards. In response to being activated, the LEDs are configured to project a wide-angle beam of light through the lens.Type: ApplicationFiled: July 22, 2024Publication date: November 14, 2024Inventors: Jeffrey S. Holly, Jacob N. Zimmerman, James C. Sitter, David A. Bierdeman, Andrew R. Schauer, Michael J. Panetta, You Gen Liu
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Publication number: 20240367245Abstract: A handheld band saw includes a housing, a handle supported by the housing and configured to be grasped by a user during a cutting operation, and a motor supported by the housing. The band saw further includes a drive wheel assembly that is at least partially disposed within the housing and a saw blade driven by the drive wheel assembly. The band saw further includes a drive assembly positioned between the motor and the drive wheel assembly. The drive assembly is configured to transfer torque from the motor to the drive wheel assembly, causing the drive wheel assembly and the saw blade to rotate. The drive wheel assembly includes a wheel having a recess in which a portion of the drive assembly is received to shorten an overall length of the motor, drive assembly, and drive wheel assembly.Type: ApplicationFiled: July 18, 2024Publication date: November 7, 2024Inventors: James C. Sitter, Kevin Staszak, David A. Bierdeman, Kevin R. Gee
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Patent number: 12097603Abstract: An oscillating power tool has a housing including a handle portion defining a handle axis and a head portion defining an output axis that is perpendicular to the handle axis. The head portion includes a front face intersected by the handle axis. A drive mechanism includes an output shaft configured to oscillate about the output axis in a rotational manner in response receiving torque from a motor. A lighting assembly is configured to illuminate a workpiece in front of the head portion of the housing. The lighting assembly includes a lens arranged on the front face of the housing, a holder coupled to the lens, a plurality of printed circuit boards supported by the holder, and an LED arranged on each of the printed circuit boards. In response to being activated, the LEDs are configured to project a wide-angle beam of light through the lens.Type: GrantFiled: June 10, 2021Date of Patent: September 24, 2024Assignee: MILWAUKEE ELECTRIC TOOL CORPORATIONInventors: Jeffrey S. Holly, Jacob N. Zimmerman, James C. Sitter, David A. Bierdeman, Andrew R. Schauer, Michael J. Panetta, You Gen Liu
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Publication number: 20240286264Abstract: An oscillating power tool includes a housing, a motor disposed generally within the housing and including a drive shaft, an output spindle configured to be driven by the motor and journaled for oscillating rotation about an oscillation axis, a drive mechanism configured to convert rotation of the drive shaft into oscillating rotation of the output spindle about the oscillation axis, the drive mechanism including an eccentric member configured to rotate off center about the motor axis, and a forked member operatively coupled to the eccentric member and configured for oscillating rotation about the oscillation axis in response to rotation of the eccentric member, and an amplitude adjustment actuator configured to move the eccentric member in the direction generally parallel to the motor axis to change an angular amplitude of oscillating rotation of the forked member.Type: ApplicationFiled: May 9, 2024Publication date: August 29, 2024Inventors: James C. Sitter, David A. Bierdeman
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Patent number: 12070809Abstract: A handheld band saw includes a housing, a handle coupled to the housing and configured to be grasped by a user during a cutting operation, a motor supported by the housing, and a drive wheel assembly rotationally driven by the motor. The drive wheel assembly at least partially disposed within the housing. The band saw further includes a saw blade driven by the drive wheel assembly. The saw blade is configured to cut a workpiece during the cutting operation. The band saw further includes a pipe reamer attachment coupled to the drive wheel assembly. The pipe reamer attachment is configured to deburr the workpiece after completion of the cutting operation.Type: GrantFiled: February 26, 2020Date of Patent: August 27, 2024Assignee: MILWAUKEE ELECTRIC TOOL CORPORATIONInventors: James C. Sitter, Kevin Staszak, David A. Bierdeman, Kevin R. Gee
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Patent number: 12005560Abstract: An oscillating power tool including a housing, a motor including a drive shaft rotatable about a motor axis, an output spindle configured to be driven by the motor and journaled for oscillating rotation about an oscillation axis, and a drive mechanism. The drive mechanism is configured to convert rotation of the drive shaft into oscillating rotation of the output spindle about the oscillation axis and includes an eccentric member and a forked member. Oscillating rotation of the forked member has an angular amplitude about the oscillation axis. The eccentric member is movable with respect to the forked member to change the angular amplitude of oscillating rotation of the forked member. An amplitude adjustment actuator is configured to move the eccentric member to change the angular amplitude of oscillating rotation of the forked member. The amplitude adjustment actuator defines a receptacle. At least a portion of the forked member is disposed in the receptacle.Type: GrantFiled: September 4, 2020Date of Patent: June 11, 2024Assignee: Milwaukee Electric Tool CorporationInventors: James C. Sitter, David A. Bierdeman
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Publication number: 20240100732Abstract: The present disclosure is directed to a power tool including a motor housing and an electric motor situated within the motor housing. The electric motor is configured to provide rotational energy to rotate an output device of the power tool about an output axis. The power tool also includes a cover configured to cover at least a portion of a surface of the motor housing that faces the output device. The power tool further includes a first lighting device located within the cover and a second lighting device located within the cover. The first lighting device and the second lighting device are located around the output axis and are separated from each other by at least 130 degrees about the output axis. The power tool also includes first power wires configured to provide power to the first lighting device from a power source of the power tool.Type: ApplicationFiled: September 26, 2023Publication date: March 28, 2024Inventors: Peter Roloff, James C. Sitter, Leonard F. Mikat-Stevens, Eric K. Farrington, Jack Glennon, Daniel J. Tomcheck, Caleb M. Schober, David Hoffman
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Publication number: 20230211490Abstract: An oscillating power tool includes an outer housing, and an inner housing positioned within the outer housing. A motor and a drive mechanism are supported by the inner housing. The drive mechanism includes an output shaft that is rotational in an oscillating manner and that defines an output axis. A damping element is positioned between the inner housing and the outer housing through which the inner housing is mounted to the outer housing, thereby attenuating vibration transmitted to the outer housing from the inner housing. An over-travel limit member is positioned between the inner housing and the outer housing. In response to relative movement between the inner housing and the outer housing while the power tool is in use, the limit member is configured to prevent direct contact between the inner housing and the outer housing, inhibiting vibration produced by the motor and/or drive mechanism from bypassing the damping element.Type: ApplicationFiled: June 10, 2021Publication date: July 6, 2023Inventors: Jeffrey S. HOLLY, Jacob N. ZIMMERMAN, James C. SITTER, David A. BIERDEMAN, Andrew R. SCHAUER, You Gen LIU
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Publication number: 20230201936Abstract: A handheld band saw includes a housing, a motor supported by the housing, a handle coupled to the housing, and a saw blade substantially covered by the housing except a portion of the saw blade extending through a cut zone. The handheld band saw further includes a drive wheel assembly and a shoe coupled to the housing. The shoe extends into the cut zone and is configured to support a workpiece during the cutting operation. The shoe includes an actuator that is coupled for movement with the shoe. The actuator is configured to adjust the shoe to one of a plurality of predefined positions relative to the housing.Type: ApplicationFiled: February 17, 2023Publication date: June 29, 2023Inventors: James C. Sitter, Kevin Staszak, David A. Bierdeman, Kevin R. Gee
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Publication number: 20220347829Abstract: An oscillating power tool has a housing including a handle portion defining a handle axis and a head portion defining an output axis that is perpendicular to the handle axis. The head portion includes a front face intersected by the handle axis. A drive mechanism includes an output shaft configured to oscillate about the output axis in a rotational manner in response receiving torque from a motor. A lighting assembly is configured to illuminate a workpiece in front of the head portion of the housing. The lighting assembly includes a lens arranged on the front face of the housing, a holder coupled to the lens, a plurality of printed circuit boards supported by the holder, and an LED arranged on each of the printed circuit boards. In response to being activated, the LEDs are configured to project a wide-angle beam of light through the lens.Type: ApplicationFiled: June 10, 2021Publication date: November 3, 2022Inventors: Jeffrey S. Holly, Jacob N. Zimmerman, James C. Sitter, David A. Bierdeman, Andrew R. Schauer, Michael J. Panetta, You Gen Liu
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Publication number: 20220324079Abstract: A belt sander for sanding a workpiece and defining a center of gravity within a first plane. The belt sander includes a housing, a handle defining a second plane, and a drive unit disposed within the housing. The drive unit includes a motor disposed adjacent a first sidewall of the housing, a pulley system disposed adjacent a second sidewall of the housing opposite the first sidewall, and a transmission disposed between the motor and the pulley system. The belt sander further includes a belt drive system driven by the drive unit and including a drive wheel, a driven wheel, and a platen. The platen defines a third plane extending perpendicular therefrom. The transmission and pulley system are disposed on one side of the first plane and the motor is disposed on an opposite side of the first plane. The motor is intersected by the second and third planes.Type: ApplicationFiled: April 11, 2022Publication date: October 13, 2022Inventors: James C. Sitter, Jeffrey S. Holly, Joseph G. Bloomfield, David A. Bierdeman, Logan M. Hietpas, Adam N. Carter, Nikos A. Gainacopulos, Eric K. Farrington, Christopher M. Didier, Benjamin J. Ludy
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Publication number: 20220297280Abstract: An oscillating power tool including a housing, a motor including a drive shaft rotatable about a motor axis, an output spindle configured to be driven by the motor and journaled for oscillating rotation about an oscillation axis, and a drive mechanism. The drive mechanism is configured to convert rotation of the drive shaft into oscillating rotation of the output spindle about the oscillation axis and includes an eccentric member and a forked member. Oscillating rotation of the forked member has an angular amplitude about the oscillation axis. The eccentric member is movable with respect to the forked member to change the angular amplitude of oscillating rotation of the forked member. An amplitude adjustment actuator is configured to move the eccentric member to change the angular amplitude of oscillating rotation of the forked member. The amplitude adjustment actuator defines a receptacle. At least a portion of the forked member is disposed in the receptacle.Type: ApplicationFiled: September 4, 2020Publication date: September 22, 2022Inventors: James C. Sitter, David A. Bierdeman
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Publication number: 20200276660Abstract: A handheld band saw includes a housing, a handle coupled to the housing and configured to be grasped by a user during a cutting operation, a motor supported by the housing, and a drive wheel assembly rotationally driven by the motor. The drive wheel assembly at least partially disposed within the housing. The band saw further includes a saw blade driven by the drive wheel assembly. The saw blade is configured to cut a workpiece during the cutting operation. The band saw further includes a pipe reamer attachment coupled to the drive wheel assembly. The pipe reamer attachment is configured to deburr the workpiece after completion of the cutting operation.Type: ApplicationFiled: February 26, 2020Publication date: September 3, 2020Inventors: James C. Sitter, Kevin Staszak, David A. Bierdeman, Kevin R. Gee