Patents by Inventor Michael R. Sande
Michael R. Sande 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: 11975435Abstract: A tool includes a housing, a drive assembly including an output shaft extending from the housing such that a tool element for performing work on a workpiece is attachable to the output shaft, and a bushing disposed within the housing. The bushing rotatably supports the output shaft. The bushing is impregnated with lubricant such that the bushing is self-lubricating, and the bushing has an impregnation ratio between about 5% and about 25%.Type: GrantFiled: June 7, 2021Date of Patent: May 7, 2024Assignee: MILWAUKEE ELECTRIC TOOL CORPORATIONInventors: Peter Malak, Michael R. Sande, Ryan Allen Dedrickson, Guang Hu, Fan Bin Zeng, Wei Chao Xu, Qiao Cai
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Patent number: 11897110Abstract: A rotary power tool includes a housing having a motor housing portion and a handle portion extending therefrom. An electric motor is positioned within the motor housing portion. The rotary power tool further includes a trigger switch configured to activate and deactivate the motor. The rotary power tool further includes a non-contact speed selector switch positioned in the housing. The non-contact speed selector switch is configured to adjust a rotational speed of the motor. The non-contact speed selector switch is separate from the trigger switch.Type: GrantFiled: November 1, 2018Date of Patent: February 13, 2024Assignee: MILWAUKEE ELECTRIC TOOL CORPORATIONInventors: Maxwell L. Merget, Jingyuan Liang, Michael R. Sande, Michael Halverson, Ian Duncan, Nicholas C. Mantych, Alex Huber
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Publication number: 20230405786Abstract: A rotary power tool includes a housing having a motor housing portion and a handle portion extending therefrom. An electric motor is positioned within the motor housing portion. The rotary power tool further includes a trigger switch configured to activate and deactivate the motor. The rotary power tool further includes a non-contact speed selector switch that is separate from the trigger switch and configured to adjust a rotational speed of the motor. The non-contact speed selector switch is positioned in a foot of the handle portion opposite the motor housing portion.Type: ApplicationFiled: September 5, 2023Publication date: December 21, 2023Inventors: Maxwell L. Merget, Jingyuan Liang, Michael R. Sande, Michael Halverson, Ian Duncan, Nicholas C. Mantych, Alex Huber
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Publication number: 20230405790Abstract: A power tool includes a housing with a motor housing portion and a handle portion extending from the motor housing portion, a motor supported within the motor housing portion, a drive assembly operatively coupled to the motor, the drive assembly producing vibrations during operation of the power tool, a battery receptacle located within the handle portion, a battery at least partially insertable into the battery receptacle along a battery axis, the battery configured to provide power to the motor, and a vibration mitigation system configured to reduce transmission of the vibrations produced by the drive assembly to the battery.Type: ApplicationFiled: June 16, 2023Publication date: December 21, 2023Inventors: Joseph T. Lottes, Michael R. Sande, Joseph J. Drees, Scott R. Fischer, Jacob P. Schneider
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Publication number: 20230249332Abstract: A telescoping tool includes a pole assembly, a driveshaft, a plurality of bearings, and at least one connection member. The pole assembly includes an outer pole and an inner pole. The inner pole is slidably received in the outer pole. The pole assembly is movable between a retracted configuration and an extended configuration. The driveshaft extends longitudinally in the outer pole and the inner pole. Each bearing of the plurality of bearings includes a driveshaft passage defined therein. The driveshaft passage receives the driveshaft therethrough. Each bearing further includes an end connection passage defined therein. The at least one connection member joins adjacent bearings of the plurality of bearings. The at least one connection member is disposed in the end connection passage of each of the adjacent bearings.Type: ApplicationFiled: April 3, 2023Publication date: August 10, 2023Inventors: Hans T. Banholzer, Troy C. Thorson, Michael R. Sande
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Patent number: 11618149Abstract: A telescoping tool includes a pole assembly, a driveshaft, a plurality of bearings, and at least one connection member. The pole assembly includes an outer pole and an inner pole. The inner pole is slidably received in the outer pole. The pole assembly is movable between a retracted configuration and an extended configuration. The driveshaft extends longitudinally in the outer pole and the inner pole. Each bearing of the plurality of bearings includes a driveshaft passage defined therein. The driveshaft passage receives the driveshaft therethrough. Each bearing further includes an end connection passage defined therein. The at least one connection member joins adjacent bearings of the plurality of bearings. The at least one connection member is disposed in the end connection passage of each of the adjacent bearings.Type: GrantFiled: April 24, 2020Date of Patent: April 4, 2023Assignee: Milwaukee Electric Tool CorporationInventors: Hans T. Banholzer, Troy C. Thorson, Michael R. Sande
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Patent number: 11554468Abstract: A rotary impact tool includes a housing, an electric motor, and a drive assembly for converting a continuous torque input from the motor to consecutive rotational impacts upon a workpiece of at least 900 ft-lbs of fastening torque. An anvil has a bore defining a hexagonal cross-sectional shape and having a nominal width of 7/16 inches. A hammer is rotationally and axially movable relative to the anvil for imparting the consecutive rotational impacts upon the anvil. A spring biases the hammer in an axial direction toward the anvil. A battery pack has a nominal voltage of at least 18 Volts and a nominal capacity of at least 5 Ah. The rotary impact tool has an overall weight including the battery pack that is less than or equal to 7.5 pounds. A ratio of the fastening torque to the overall weight is greater than or equal to 120 ft-lbs per pound.Type: GrantFiled: January 9, 2020Date of Patent: January 17, 2023Assignee: MILWAUKEE ELECTRIC TOOL CORPORATIONInventors: Ian A. Duncan, Jacob P. Schneider, Michael R. Sande
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Publication number: 20220274246Abstract: A power tool supportable by a lanyard. The power tool includes a motor housing, a motor arranged in the motor housing, a front housing, an output member extending from the front housing, a gear case, and a gear train arranged in the gear case. The gear train configured to transfer torque from the motor to the output member. The power tool further includes a first fastener securing the front housing to the motor housing and a bracket to which the lanyard is attachable. The bracket is fastened to one of the front housing, the motor housing, or the gear case by a second fastener that does not secure the front housing to the motor housing.Type: ApplicationFiled: May 18, 2022Publication date: September 1, 2022Inventors: Mackenzie J. Nick, Michael R. Sande, Ian A. Duncan, Jacob P. Schneider
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Patent number: 11426845Abstract: A rotary impact tool includes a housing, an electric motor, and a drive assembly for converting a continuous torque input from the motor to consecutive rotational impacts upon a workpiece of at least 900 ft-lbs of fastening torque. An anvil has a bore defining a hexagonal cross-sectional shape and having a nominal width of 7/16 inches. A hammer is rotationally and axially movable relative to the anvil for imparting the consecutive rotational impacts upon the anvil. A spring biases the hammer in an axial direction toward the anvil. A battery pack has a nominal voltage of at least 18 Volts and a nominal capacity of at least 5 Ah. The rotary impact tool has an overall weight including the battery pack that is less than or equal to 7.5 pounds. A ratio of the fastening torque to the overall weight is greater than or equal to 120 ft-lbs per pound.Type: GrantFiled: January 9, 2020Date of Patent: August 30, 2022Assignee: MILWAUKEE ELECTRIC TOOL CORPORATIONInventors: Ian A. Duncan, Jacob P. Schneider, Michael R. Sande, Mackenzie J. Nick
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Patent number: 11338427Abstract: A power tool is supportable by a lanyard. The power tool includes a motor housing, a motor arranged in the motor housing, front housing, an output member extending from the front housing, a gear case, and a gear train arranged in the gear case. The gear train is configured to transfer torque from the motor to the output member. The power tool also includes a first fastener securing the front housing to the motor housing, and a bracket fastened to one of the front housing, the motor housing, or the gear case by a second fastener that does not secure the front housing to the motor housing. The power tool also includes a support member secured to the one of the front housing, the motor housing, or the gear case by the bracket. The support member is attachable to the lanyard.Type: GrantFiled: January 10, 2020Date of Patent: May 24, 2022Assignee: MILWAUKEE ELECTRIC TOOL CORPORATIONInventors: Mackenzie J. Nick, Michael R. Sande, Ian A. Duncan, Jacob P. Schneider
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Publication number: 20210291339Abstract: A tool includes a housing, a drive assembly including an output shaft extending from the housing such that a tool element for performing work on a workpiece is attachable to the output shaft, and a bushing disposed within the housing. The bushing rotatably supports the output shaft. The bushing is impregnated with lubricant such that the bushing is self-lubricating, and the bushing has an impregnation ratio between about 5% and about 25%.Type: ApplicationFiled: June 7, 2021Publication date: September 23, 2021Inventors: Peter Malak, Michael R. Sande, Ryan Allen Dedrickson, Guang Hu, Fan Bin Zeng, Wei Chao Xu, Qiao Cai
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Publication number: 20210237249Abstract: An impact tool includes an electric motor and a housing containing the electric motor, the housing including a battery receptacle. The battery receptacle includes an isolation member configured to selectively and detachably couple to a battery pack to electrically connect the battery pack to the electric motor. The isolation member includes opposed rails configured to be received into sliding engagement with channels formed in the housing. The battery receptacle also includes an elastomeric damper supported within the housing. During operation of the impact tool, the isolation member is configured to translate relative to the housing and impact the elastomeric damper which, in turn, is configured to attenuate the transmission of vibration from the housing to the battery pack.Type: ApplicationFiled: February 4, 2021Publication date: August 5, 2021Inventors: Scott R. Fischer, Evan Brown, Michael R. Sande
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Patent number: 11027404Abstract: A power tool includes a housing having a motor housing portion and a front casing coupled to the motor housing portion. The power tool also includes an electric motor positioned within the motor housing portion, a drive assembly having an output shaft to which a tool element for performing work on a workpiece is attachable, and a powdered metal bushing disposed within the front casing that rotatably supports the output shaft.Type: GrantFiled: June 28, 2019Date of Patent: June 8, 2021Assignee: Milwaukee Electric Tool CorporationInventors: Peter Malak, Michael R. Sande, Ryan Allen Dedrickson, Guang Hu, Fan Bin Zeng, Wei Chao Xu, Qiao Cai
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Patent number: 10960530Abstract: System for cooling a power tool. One exemplary power tool includes a housing including an air intake and an air exhaust. The power tool further includes a motor and a fan configured to pull cooling air into the housing through the air intake, and exhaust the cooling air out of the housing through the air exhaust. The power tool further includes a plurality of field-effect transistors (FETs). The FETs couple the stator coils to a power source. The power tool further includes a FET board within the housing. The power tool further includes a heat sink within the housing. The heat sink includes a first mounting portion and a second mounting portion. Each of the mounting portions includes a horizontal fin extending toward a respective side of the housing. A plurality of vertical fins extends from a top surface of each of the horizontal fins.Type: GrantFiled: March 29, 2017Date of Patent: March 30, 2021Assignee: Milwaukee Electric Tool CorporationInventors: Nikos A. Gainacopulos, Michael R. Sande, Michael A. Matthews, Derek J. Schwab, Steve Cunningham
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Publication number: 20200338711Abstract: A telescoping tool includes a pole assembly, a driveshaft, a plurality of bearings, and at least one connection member. The pole assembly includes an outer pole and an inner pole. The inner pole is slidably received in the outer pole. The pole assembly is movable between a retracted configuration and an extended configuration. The driveshaft extends longitudinally in the outer pole and the inner pole. Each bearing of the plurality of bearings includes a driveshaft passage defined therein. The driveshaft passage receives the driveshaft therethrough. Each bearing further includes an end connection passage defined therein. The at least one connection member joins adjacent bearings of the plurality of bearings. The at least one connection member is disposed in the end connection passage of each of the adjacent bearings.Type: ApplicationFiled: April 24, 2020Publication date: October 29, 2020Inventors: Hans T. Banholzer, Troy C. Thorson, Michael R. Sande
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Publication number: 20200223053Abstract: A power tool is supportable by a lanyard. The power tool includes a motor housing, a motor arranged in the motor housing, front housing, an output member extending from the front housing, a gear case, and a gear train arranged in the gear case. The gear train is configured to transfer torque from the motor to the output member. The power tool also includes a first fastener securing the front housing to the motor housing, and a bracket fastened to one of the front housing, the motor housing, or the gear case by a second fastener that does not secure the front housing to the motor housing. The power tool also includes a support member secured to the one of the front housing, the motor housing, or the gear case by the bracket. The support member is attachable to the lanyard.Type: ApplicationFiled: January 10, 2020Publication date: July 16, 2020Inventors: Mackenzie J. Nick, Michael R. Sande, Ian A. Duncan, Jacob P. Schneider
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Publication number: 20200215668Abstract: A rotary impact tool includes a housing, an electric motor, and a drive assembly for converting a continuous torque input from the motor to consecutive rotational impacts upon a workpiece of at least 900 ft-lbs of fastening torque. An anvil has a bore defining a hexagonal cross-sectional shape and having a nominal width of 7/16 inches. A hammer is rotationally and axially movable relative to the anvil for imparting the consecutive rotational impacts upon the anvil. A spring biases the hammer in an axial direction toward the anvil. A battery pack has a nominal voltage of at least 18 Volts and a nominal capacity of at least 5 Ah. The rotary impact tool has an overall weight including the battery pack that is less than or equal to 7.5 pounds. A ratio of the fastening torque to the overall weight is greater than or equal to 120 ft-lbs per pound.Type: ApplicationFiled: January 9, 2020Publication date: July 9, 2020Inventors: Ian A. Duncan, Jacob P. Schneider, Michael R. Sande, Mackenzie J. Nick
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Publication number: 20200023503Abstract: A power tool includes a housing having a motor housing portion and a front casing coupled to the motor housing portion. The power tool also includes an electric motor positioned within the motor housing portion, a drive assembly having an output shaft to which a tool element for performing work on a workpiece is attachable, and a powdered metal bushing disposed within the front casing that rotatably supports the output shaft.Type: ApplicationFiled: June 28, 2019Publication date: January 23, 2020Inventors: Peter Malak, Michael R. Sande, Ryan Allen Dedrickson, Guang Hu, Fan Bin Zeng, Wei Chao Xu, Qiao Cai
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Publication number: 20190291260Abstract: System for cooling a power tool. One exemplary power tool includes a housing including an air intake and an air exhaust. The power tool further includes a motor and a fan configured to pull cooling air into the housing through the air intake, and exhaust the cooling air out of the housing through the air exhaust. The power tool further includes a plurality of field-effect transistors (FETs). The FETs couple the stator coils to a power source. The power tool further includes a FET board within the housing. The power tool further includes a heat sink within the housing. The heat sink includes a first mounting portion and a second mounting portion. Each of the mounting portions includes a horizontal fin extending toward a respective side of the housing. A plurality of vertical fins extends from a top surface of each of the horizontal fins.Type: ApplicationFiled: March 29, 2017Publication date: September 26, 2019Inventors: Nikos A. Gainacopulos, Michael R. Sande, Michael A. Matthews, Derek J. Schwab, Steve Cunningham
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Publication number: 20190134801Abstract: A rotary power tool includes a housing having a motor housing portion and a handle portion extending therefrom. An electric motor is positioned within the motor housing portion. The rotary power tool further includes a trigger switch configured to activate and deactivate the motor. The rotary power tool further includes a non-contact speed selector switch positioned in the housing. The non-contact speed selector switch is configured to adjust a rotational speed of the motor. The non-contact speed selector switch is separate from the trigger switch.Type: ApplicationFiled: November 1, 2018Publication date: May 9, 2019Inventors: Maxwell L. Merget, Jingyuan Liang, Michael R. Sande, Michael Halverson, Ian Duncan, Nicholas C. Mantych, Alex Huber