Patents by Inventor Beth E. Cholst
Beth E. Cholst 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: 20240130307Abstract: A handheld blower including a housing, an air duct defining a duct axis, the air duct including an air inlet and an air outlet opposite the air inlet, and a handle. The handle at least partially defining a battery receiving cavity configured to receive at least a portion of a battery pack therein, where the handle defines a grip axis, and where the grip axis is parallel to the duct axis.Type: ApplicationFiled: December 29, 2023Publication date: April 25, 2024Inventors: Beth E. Cholst, Bennett W. Westling, Atul Anand, Gregory A. Mutchler
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Patent number: 11951601Abstract: A powered fastener driver includes a driver blade movable from a top-dead-center (TDC) position to a bottom-dead-center (BDC) position for driving a fastener into a workpiece and a drive unit for providing torque to move the driver blade from the BDC position toward the TDC position. A rotary lifter is engageable with the driver blade and configured to receive torque from the drive unit for returning the driver blade from the BDC position toward the TDC position. The lifter has a body, a drive pin coupled to the body, and a roller positioned on the drive pin. The roller includes an engagement section configured to receive an end portion of a tooth of the driver blade. The lifter includes a means for aligning the engagement section with the end portion of the tooth on the driver blade to facilitate meshing between the end portion and the roller.Type: GrantFiled: January 25, 2022Date of Patent: April 9, 2024Assignee: Milwaukee Electric Tool CorporationInventors: Beth E. Cholst, Troy C. Thorson, Jacob P. Schneider, Mackenzie J. Nick, Nathan Bandy, David A Bierdeman, Travis W. Leathrum, Mitchell T. Neuhoff, Mark C. Hughes, David C. Graf, Marcus Wechselberger
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Patent number: 11951602Abstract: A rotary hammer adapted to impart axial impacts to a tool bit. The rotary hammer includes a housing, a motor supported by the housing, a spindle coupled to the motor for receiving torque from the motor, causing the spindle to rotate, a reciprocation mechanism operable to create a variable pressure air spring within the spindle, an anvil received within the spindle for reciprocation in response to the pressure of the air spring, the anvil imparting axial impacts to the tool bit, a bit retention assembly for securing the tool bit to the spindle, and an electromagnetic clutch mechanism switchable between a first state, in which the reciprocation mechanism is enabled, such that the anvil imparts axial impacts to the tool bit, and a second state, in which the reciprocation mechanism is disabled, such that the anvil ceases to impart axial impacts to the tool bit.Type: GrantFiled: April 2, 2021Date of Patent: April 9, 2024Assignee: Milwaukee Electric Tool CorporationInventors: Jeremy R. Ebner, Beth E. Cholst, Troy C. Thorson
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Publication number: 20240113562Abstract: Inductively powered power tool systems are provided. An inductively powered power tool system includes an inductive power supply backpack comprising a power source; a power transmitter system configured to inductively transfer power from the power source via a transmittal coil; and a wearable transmitter, wherein the wearable transmitter comprises the transmittal coil. The inductively powered power tool system further includes an inductively powered power tool comprising a power receiver system configured to inductively receive power from the power transmitter system; a working implement; and a drive unit, configured to drive the working implement using power inductively received by the power receiver system from the power transmitter system.Type: ApplicationFiled: September 22, 2023Publication date: April 4, 2024Inventors: Beth E. Cholst, Dominick Ropella
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Patent number: 11936197Abstract: A power distribution device that couples to storage units is provided. The power distribution device a battery charger that indirectly charges batteries, such as for personal electronic devices. The device includes a top panel with a recess that receives the personal electronic devices. The device also includes interface components to couple the device to a modular tool storage unit.Type: GrantFiled: December 16, 2020Date of Patent: March 19, 2024Assignee: Milwaukee Electric Tool CorporationInventor: Beth E. Cholst
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Patent number: 11889794Abstract: A handheld blower including a housing, an air duct defining a duct axis, the air duct including an air inlet and an air outlet opposite the air inlet, and a handle. The handle at least partially defining a battery receiving cavity configured to receive at least a portion of a battery pack therein, where the handle defines a grip axis, and where the grip axis is parallel to the duct axis.Type: GrantFiled: December 30, 2021Date of Patent: February 6, 2024Assignee: Milwaukee Electric Tool CorporationInventors: Beth E. Cholst, Bennett W. Westling, Atul Anand, Gregory A. Mutchler
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Publication number: 20240033871Abstract: A rotary hammer includes a motor and a spindle coupled to the motor for receiving torque from the motor. The spindle has an adjustable rotation speed. A reciprocation mechanism is operable to create a variable pressure air spring within the spindle and includes a piston configured to reciprocate within the spindle in response to receiving torque from the motor. The piston has an adjustable reciprocation frequency. A striker is selectively reciprocable within the spindle in response to reciprocation of the piston. A first transmission is transfers torque from the motor to the spindle and a second transmission is transfers torque from the motor to the reciprocation mechanism. The reciprocation frequency of the piston is adjustable independent of the rotation speed of the spindle. The rotation speed of the spindle is adjustable independent of the reciprocation frequency of the piston. At least one of the transmissions is a multi-speed transmission.Type: ApplicationFiled: October 9, 2023Publication date: February 1, 2024Inventors: Kyle Greunke, Andrew D. Van Hoorn, Kevin A. McLachlan, Julia C. Marsh, Mauricio Builes Zapata, Daryl S. Richards, Beth E. Cholst, Jeffery D. Spraggon
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Publication number: 20230413736Abstract: Power tools are provided. A power tool, such as a hedge trimmer, can include a housing; a blade assembly extending from the housing, wherein the blade assembly defines a blade assembly plane; a level configured to detect an orientation of the blade assembly plane compared to a reference plane; and an indicator configured to generate feedback to a user about the orientation of the blade assembly plane compared to the reference plane.Type: ApplicationFiled: June 26, 2023Publication date: December 28, 2023Inventors: Luke Corsiglia, Don Vollmar, Beth E. Cholst
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Publication number: 20230413737Abstract: Crankshafts for handheld power tools are provided. A crankshaft includes an input section configured to be coupled to a motive device and an output section comprising first and second engagement members. The first and second engagement members are configured to drive a first and second cutting implement, wherein the first and second engaging members are spaced apart from each other in a direction along a rotational axis of the crankshaft and in a direction transverse to the rotational axis of the crankshaft, and wherein the first and second cutting implements are each coupled to the crankshaft by translating relative to the crankshaft in a direction along the rotational axis.Type: ApplicationFiled: June 26, 2023Publication date: December 28, 2023Inventors: Luke Corsiglia, Beth E. Cholst
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Publication number: 20230415180Abstract: A machine drive system is provided including a wall forming a first side fluidly separated from a second side and a machine drive device disposed at the second side. The machine drive device includes a receiver device in which a second gap is formed between the receiver device and the wall at the second side. A drive device is positioned at the first side in electromagnetically proximate arrangement to the machine drive device. A first gap is formed between at least a portion of the drive device and the wall.Type: ApplicationFiled: June 15, 2023Publication date: December 28, 2023Inventors: Beth E. Cholst, Jonathan S. Keller, Luis F. Gonzalez Jauregui, Jeffrey C. Hessenberger
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Publication number: 20230390838Abstract: A reciprocating saw includes a blade assembly having a spindle and a blade clamp. The blade clamp includes a cover rotatably coupled to the spindle, and a detent movable in a radial direction to adjust the blade clamp between a locked configuration and an unlocked configuration. The cover is rotatable between a first rotational position relative to the spindle coinciding with the locked configuration, and a second rotational position relative to the spindle coinciding with the unlocked configuration. The reciprocating saw further includes a barrel surrounding at least a portion of the blade clamp. The barrel includes a plurality of projections extending from the barrel toward the blade clamp. At least one of the projections is engageable with the cover to rotate the cover from the second rotational position to the first rotational position, thereby adjusting the blade clamp from the unlocked configuration toward the locked configuration.Type: ApplicationFiled: August 18, 2023Publication date: December 7, 2023Inventors: Beth E. Cholst, Troy C. Thorson, Hans T. Banholzer
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Publication number: 20230375049Abstract: A clutch can include an input; an output; a centrifugal clutch mechanism that transfers energy from the input to the output, the centrifugal clutch mechanism including: a disk; centrifugal weights movably coupled to the disk; and a central shaft rotatable relative to the disk and extending through the disk, the central shaft comprising drive surfaces, wherein the disk is rotatably coupled to the input, wherein the output is rotatably coupled to the central shaft, wherein the centrifugal weights rotate between a disengaged position in which the centrifugal weights do not interface with drive surfaces and an engaged position in which the centrifugal weights interface with the drive surfaces, and wherein the centrifugal weights are disposed inside the perimeter of the disk when the centrifugal weights are in the engaged position.Type: ApplicationFiled: May 12, 2023Publication date: November 23, 2023Inventors: Kevin S. Puls, Beth E. Cholst, Casey D. Garces, Tyler J. Reaker, Brian J. Yue, Kang Lin Chen, Jie WANG
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Patent number: 11819968Abstract: A rotary hammer includes a housing, a first motor supported by the housing and defining a first motor axis, a second motor supported by the housing and defining a second motor axis that is coaxial with the first motor axis, and a spindle coupled to the first motor for receiving torque from the first motor, causing the spindle to rotate. The rotary hammer further includes a reciprocation mechanism operable to create a variable pressure air spring within the spindle. The reciprocation mechanism includes a piston configured to reciprocate within the spindle in response to receiving torque from the second motor, a striker that is selectively reciprocable within the spindle in response to reciprocation of the piston, and an anvil that is impacted by the striker when the striker reciprocates towards the tool bit. The anvil imparts axial impacts to the tool bit.Type: GrantFiled: January 19, 2022Date of Patent: November 21, 2023Assignee: MILWAUKEE ELECTRIC TOOL CORPORATIONInventors: Kyle Greunke, Andrew D. Van Hoorn, Kevin A. McLachlan, Julia C. Marsh, Mauricio Builes Zapata, Daryl S. Richards, Beth E. Cholst, Jeffery D. Spraggon
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Patent number: 11786984Abstract: A blade clamp, for use with a power tool having a reciprocating spindle, includes a cover rotatably coupled to the spindle and a detent received within a bore of the spindle. The detent is movable in a radial direction relative to a longitudinal axis of the spindle to adjust the blade clamp between a locked configuration and an unlocked configuration. The cover is rotatable between a first rotational position relative to the spindle coinciding with the locked configuration, and a second rotational position relative to the spindle coinciding with the unlocked configuration. The blade clamp further includes a sleeve in which the detent is slidably received. The sleeve includes a non-corrosive material for inhibiting corrosion of the detent.Type: GrantFiled: June 15, 2021Date of Patent: October 17, 2023Assignee: MILWAUKEE ELECTRIC TOOL CORPORATIONInventors: Beth E. Cholst, Troy C. Thorson, Hans T. Banholzer
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Publication number: 20230191575Abstract: A powered fastener driver includes a driver blade and a drive unit having an output shaft for providing torque to move the driver blade from the bottom-dead-center position toward the top-dead-center position. A rotary lifter is engageable with the driver blade and configured to receive torque from the output shaft of the drive unit in a first rotational direction for returning the driver blade from the bottom-dead-center position toward the top-dead-center position. A kickout arrangement is defined between the lifter and the output shaft and configured to permit limited movement of the lifter relative to the output shaft between a first position and a second position. The kickout arrangement having a curvilinear slot defined in the rotary lifter in which a portion of the output shaft is received. Movement of the rotary lifter from the first position toward the second position causes the slot to move relative to the output shaft, while the output shaft remains within the slot.Type: ApplicationFiled: February 13, 2023Publication date: June 22, 2023Inventors: David A. Bierdeman, Troy C. Thorson, Jacob P. Schneider, Mackenzie J. Nick, Nathan Bandy, Travis W. Leathrum, Mitchell T. Neuhoff, Mark C. Hughes, David C. Graf, Marcus Wechselberger, Leonard F. Mikat-Stevens, Jacob N. Zimmerman, Jason M. Julius, Rosalie C. Phillips, Beth E. Cholst
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Publication number: 20230138234Abstract: A powered fastener driver includes a driver blade movable from a top-dead-center position to a bottom-dead-center position for driving a fastener into a workpiece, a drive unit for providing torque to move the driver blade toward the top-dead-center position, and a rotary lifter engageable with the driver blade. The lifter having a body and a drive pin coupled to the body. A roller is positioned on the drive pin and engages with a tooth of the driver blade when moving the driver blade from the bottom-dead-center position toward the top-dead-center position. The roller includes a first engagement section that receives an end portion of the tooth and a second engagement section. An engagement member engages the second engagement section for aligning the first engagement section of the roller with the end portion of the tooth to facilitate meshing between the end portion of the tooth and the roller.Type: ApplicationFiled: December 27, 2022Publication date: May 4, 2023Inventors: David A. Bierdeman, Troy C. Thorson, Jacob P. Schneider, Mackenzie J. Nick, Nathan Bandy, Travis W. Leathrum, Mitchell T. Neuhoff, Mark C. Hughes, David C. Graf, Marcus Wechselberger, Leonard F. Mikat-Stevens, Jacob N. Zimmerman, Jason M. Julius, Rosalie C. Phillips, Beth E. Cholst
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Publication number: 20230107079Abstract: A stud punch includes a housing, a motor positioned within the housing, and a planetary gear train that receives torque from the motor. The stud punch also includes a punch movable between a retracted position and an extended position, and a scotch-yoke mechanism coupled between the planetary gear train and the punch. The scotch-yoke mechanism is configured to convert torque received from the planetary gear train to a reciprocating linear force, causing the punch to move between the retracted position and the extended position.Type: ApplicationFiled: July 17, 2020Publication date: April 6, 2023Inventors: Mackenzie NICK, Beth E. CHOLST, Troy C. THORSON
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Patent number: 11618145Abstract: A powered fastener driver includes a driver blade movable from a top-dead-center (TDC) position to a driven or bottom-dead-center (BDC) position for driving a fastener into a workpiece and a drive unit for providing torque to move the driver blade from the BDC position toward the TDC position. The drive unit includes an output shaft. The powered fastener driver also includes a rotary lifter engageable with the driver blade. The lifter is configured to receive torque from the drive unit in a first rotational direction for returning the driver blade from the BDC position toward the TDC position. The powered fastener driver further includes a kickout arrangement located between the lifter and the output shaft. The kickout arrangement is configured to permit limited rotation of the lifter relative to the output shaft between a first position and a second position.Type: GrantFiled: January 21, 2021Date of Patent: April 4, 2023Assignee: MILWAUKEE ELECTRIC TOOL CORPORATIONInventors: David A. Bierdeman, Mackenzie J. Nick, Beth E. Cholst, Troy C. Thorson, Nathan Bandy, Jacob P. Schneider
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Patent number: 11577372Abstract: A powered fastener driver includes a driver blade movable from a top-dead-center position to a bottom-dead-center position for driving a fastener into a workpiece, a drive unit for providing torque to move the driver blade toward the top-dead-center position, and a rotary lifter engageable with the driver blade. The rotary lifter having a body and a drive pin coupled to the body. A roller is rotatably coupled to the drive pin and includes a non-cylindrical outer peripheral surface defining a plurality of engagement sections. A tooth of the driver blade is configured to engage one of the engagement sections when moving the driver blade from the bottom-dead-center position toward the top-dead-center position.Type: GrantFiled: April 13, 2022Date of Patent: February 14, 2023Assignee: MILWAUKEE ELECTRIC TOOL CORPORATIONInventors: David A. Bierdeman, Troy C. Thorson, Jacob P. Schneider, Mackenzie J. Nick, Nathan Bandy, Travis W. Leathrum, Mitchell T. Neuhoff, Mark C. Hughes, David C. Graf, Marcus Wechselberger, Leonard F. Mikat-Stevens, Jacob N. Zimmerman, Jason M. Julius, Rosalie C. Phillips, Beth E. Cholst
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Patent number: 11571794Abstract: A powered fastener driver includes a driver blade movable from a top-dead-center position to a bottom-dead-center position for driving a fastener into a workpiece, a drive unit for providing torque to move the driver blade toward the top-dead-center position, and a rotary lifter engageable with the driver blade. The lifter having a body and a drive pin coupled to the body. A roller is positioned on the drive pin and engages with a tooth of the driver blade when moving the driver blade from the bottom-dead-center position toward the top-dead-center position. The roller includes a first engagement section that receives an end portion of the tooth and a second engagement section. An engagement member engages the second engagement section for aligning the first engagement section of the roller with the end portion of the tooth to facilitate meshing between the end portion of the tooth and the roller.Type: GrantFiled: April 13, 2022Date of Patent: February 7, 2023Assignee: MILWAUKEE ELECTRIC TOOL CORPORATIONInventors: David A. Bierdeman, Troy C. Thorson, Jacob P. Schneider, Mackenzie J. Nick, Nathan Bandy, Travis W. Leathrum, Mitchell T. Neuhoff, Mark C. Hughes, David C. Graf, Marcus Wechselberger, Leonard F. Mikat-Stevens, Jacob N. Zimmerman, Jason M. Julius, Rosalie C. Phillips, Beth E. Cholst