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公开(公告)号：US12005555B2
公开(公告)日：2024-06-11
申请号：US17195855
申请日：2021-03-09
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Julia C. Marsh , Kyle Greunke , Kevin A. McLachlan
CPC classification number: B25D11/066 , B25D11/04 , B25D2211/003 , B25D2211/006 , B25D2216/0069 , B25D2250/321 , B25D2250/365 , B25D2250/371
Abstract: A rotary hammer includes a motor, a spindle coupled to the motor for receiving torque from the motor, a piston at least partially received within the spindle for reciprocation therein, a striker received within the spindle for reciprocation in response to reciprocation of the piston, and an anvil received within the spindle and positioned between the striker and the tool bit. The anvil is configured to impart axial impacts to the tool bit in response to reciprocation of the striker. The rotary hammer also includes a retainer received within the spindle for selectively securing the striker in an idle position in which it is inhibited from reciprocating within the spindle. The retainer includes a detent member configured to engage the striker to secure the striker in the idle position, and a tensing element configured to bias the detent member radially inward toward engagement with the striker.
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公开(公告)号：US20220226951A1
公开(公告)日：2022-07-21
申请号：US17579140
申请日：2022-01-19
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Kyle Greunke , Andrew D. Van Hoorn , Kevin A. McLachlan , Julia C. Marsh , Mauricio Builes Zapata , Daryl S. Richards , Beth E. Cholst , Jeffery D. Spraggon
Abstract: 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.
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公开(公告)号：US12296456B2
公开(公告)日：2025-05-13
申请号：US18341572
申请日：2023-06-26
Applicant: Milwaukee Electric Tool Corporation
Inventor： Julia C. Marsh , Jeffery D. Spraggon , Joy A. Sodon , Adam N. Carter , Brittany A. Sellnow , Olivia M. Duero , Allison J. Widzinski
Abstract: A handheld power tool including a housing, a tool receptacle disposed on a first end of the housing and configured to receive a tool accessory, and a motor positioned within the housing and operatively coupled to the tool receptacle to drive the tool accessory. A dust container is selectively coupled to the housing. A dust tube is coupled to the first end of the housing and in fluid communication with the dust container, wherein the dust tube is movable between an extended position and a retracted position. A fan is positioned within the housing and is operable to generate a suction air flow path through the dust tube and into the dust container, wherein the fan rotatably driven by the motor.
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公开(公告)号：US20250135561A1
公开(公告)日：2025-05-01
申请号：US18835965
申请日：2023-02-06
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Carmen J. Castanos , Kallol Barai , Hans T. Banholzer , Evan Brown , Julia C. Marsh , Coby A. Nettleton , Dominick S. Ropella , Troy C. Thorson , Terry L. Timmons , Kailie M. Romanski , Justin T. Bickman , Jacob R. McDonald
IPC: B23D29/00
Abstract: A power tool is disclosed and includes a housing and a motor disposed within the housing. The power tool further includes a first blade and a second blade movable relative to the first blade by the motor. During operation, a cutting stroke length of the first blade relative to the second blade is selectively adjustable based on a direction of rotation of the motor.
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公开(公告)号：US12083642B2
公开(公告)日：2024-09-10
申请号：US18482967
申请日：2023-10-09
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Kyle Greunke , Andrew D. Van Hoorn , Kevin A. McLachlan , Julia C. Marsh , Mauricio Builes Zapata , Daryl S. Richards , Beth E. Cholst , Jeffery D. Spraggon
CPC classification number: B23Q11/0046 , B23Q11/0071 , B25D17/043 , B25D17/20 , B25F5/003 , B25F5/026 , B28D7/02 , B25D2211/061 , B25D2217/0057 , B25D2250/121
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US20230415327A1
公开(公告)日：2023-12-28
申请号：US18341572
申请日：2023-06-26
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Julia C. Marsh , John Bloom-Edmonds , Jeffery D. Spraggon , Andrew Delmar Van Hoorn , Allen H. Johnson, III , Amedee Brennan O’Gorman
CPC classification number: B25F5/026 , B23Q11/0046
Abstract: A handheld power tool including a housing, a tool receptacle disposed on a first end of the housing and configured to receive a tool accessory, and a motor positioned within the housing and operatively coupled to the tool receptacle to drive the tool accessory. A dust container is selectively coupled to the housing. A dust tube is coupled to the first end of the housing and in fluid communication with the dust container, wherein the dust tube is movable between an extended position and a retracted position. A fan is positioned within the housing and is operable to generate a suction air flow path through the dust tube and into the dust container, wherein the fan rotatably driven by the motor.
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公开(公告)号：US20240033871A1
公开(公告)日：2024-02-01
申请号：US18482967
申请日：2023-10-09
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Kyle Greunke , Andrew D. Van Hoorn , Kevin A. McLachlan , Julia C. Marsh , Mauricio Builes Zapata , Daryl S. Richards , Beth E. Cholst , Jeffery D. Spraggon
CPC classification number: B23Q11/0046 , B23Q11/0071 , B25D17/043 , B25D17/20 , B25F5/026 , B28D7/02 , B25F5/003 , B25D2250/121 , B25D2211/061 , B25D2217/0057
Abstract: 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.
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公开(公告)号：US11872665B2
公开(公告)日：2024-01-16
申请号：US17711834
申请日：2022-04-01
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Julia C. Marsh , John Bloom-Edmonds , Jeffery D. Spraggon , Andrew Delmar Van Hoorn , Allen H. Johnson, III , Amedee Brennan O'Gorman
CPC classification number: B23Q11/0046 , B01D46/0043 , B01D46/46 , B01D46/68 , B23Q11/0071 , B25F5/008 , H02K7/145 , H02K9/10 , B01D2273/30 , B25D17/20
Abstract: A handheld power tool including a housing, a tool receptacle disposed on a first end of the housing and configured to receive a tool accessory, and a motor positioned within the housing and operatively coupled to the tool receptacle to drive the tool accessory. A dust container is selectively coupled to the housing. A dust tube is coupled to the first end of the housing and in fluid communication with the dust container, wherein the dust tube is movable between an extended position and a retracted position. A fan is positioned within the housing and is operable to generate a suction air flow path through the dust tube and into the dust container, wherein the fan rotatably driven by the motor.
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公开(公告)号：US20220314384A1
公开(公告)日：2022-10-06
申请号：US17711834
申请日：2022-04-01
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Julia C. Marsh , John Bloom-Edmonds , Jeffery D. Spraggon , Andrew Delmar Van Hoorn , Allen H. Johnson, III , Amedee Brennan O'Gorman
Abstract: A handheld power tool including a housing, a tool receptacle disposed on a first end of the housing and configured to receive a tool accessory, and a motor positioned within the housing and operatively coupled to the tool receptacle to drive the tool accessory. A dust container is selectively coupled to the housing. A dust tube is coupled to the first end of the housing and in fluid communication with the dust container, wherein the dust tube is movable between an extended position and a retracted position. A fan is positioned within the housing and is operable to generate a suction air flow path through the dust tube and into the dust container, wherein the fan rotatably driven by the motor.
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公开(公告)号：US20210291338A1
公开(公告)日：2021-09-23
申请号：US17195855
申请日：2021-03-09
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Julia C. Marsh , Kyle Greunke , Kevin A. McLachlan
Abstract: A rotary hammer includes a motor, a spindle coupled to the motor for receiving torque from the motor, a piston at least partially received within the spindle for reciprocation therein, a striker received within the spindle for reciprocation in response to reciprocation of the piston, and an anvil received within the spindle and positioned between the striker and the tool bit. The anvil is configured to impart axial impacts to the tool bit in response to reciprocation of the striker. The rotary hammer also includes a retainer received within the spindle for selectively securing the striker in an idle position in which it is inhibited from reciprocating within the spindle. The retainer includes a detent member configured to engage the striker to secure the striker in the idle position, and a tensing element configured to bias the detent member radially inward toward engagement with the striker.
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