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公开(公告)号：US20220219301A1
公开(公告)日：2022-07-14
申请号：US17665150
申请日：2022-02-04
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： 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
Abstract: 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 kickout arrangement is at least partially defined by an outer surface on one of a torque output member and a torque input member and an aperture formed in the other of the torque output member and the torque input member in which the outer surface is received. The kickout arrangement configured to permit limited rotation of the torque output member relative to the torque input member between a first position and a second position.
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公开(公告)号：US11065698B2
公开(公告)日：2021-07-20
申请号：US16433059
申请日：2019-06-06
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Beth E. Cholst , Troy C. Thorson , Hans T. Banholzer
Abstract: 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.
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公开(公告)号：US20250048961A1
公开(公告)日：2025-02-13
申请号：US18794251
申请日：2024-08-05
Applicant: Milwaukee Electric Tool Corporation
Inventor： Nicholas Dobernig , Beth E. Cholst
IPC: A01D34/685 , A01D34/73 , A01D34/84 , A01D101/00
Abstract: A reciprocating power tool comprising a first blade and a second blade, wherein the first blade is driven by a first shaft assembly, wherein the second blade is driven by a second shaft assembly, wherein the first and second blade assemblies are reciprocally driven by a cam shaft, wherein the first shaft assembly defines a first moment of inertia, wherein the second shaft assembly defines a second moment of inertia, and wherein the first and second moments of inertia are within 5% of one another.
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公开(公告)号：US20240408710A1
公开(公告)日：2024-12-12
申请号：US18812505
申请日：2024-08-22
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 tool can include a housing, a first motor supported by the housing, a spindle rotated by the first motor, a second motor supported by the housing, and a reciprocation mechanism reciprocated by the second motor. The reciprocation mechanism can include a piston driven to reciprocate within the spindle and a striker to reciprocate within the spindle in response to reciprocation of the piston. The rotational speed of the spindle and a reciprocation frequency of the reciprocation mechanism may be independently controllable.
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公开(公告)号：US20230413737A1
公开(公告)日：2023-12-28
申请号：US18341062
申请日：2023-06-26
Applicant: Milwaukee Electric Tool Corporation
Inventor： Luke Corsiglia , Beth E. Cholst
IPC: A01G3/053
CPC classification number: A01G3/053 , A01G2003/0461
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US20230375049A1
公开(公告)日：2023-11-23
申请号：US18196839
申请日：2023-05-12
Applicant: Milwaukee Electric Tool Corporation
Inventor： Kevin S. Puls , Beth E. Cholst , Casey D. Garces , Tyler J. Reaker , Brian J. Yue , Kang Lin Chen , Jie WANG
IPC: F16D43/14 , F16D41/069 , A01D34/68
CPC classification number: F16D43/14 , F16D41/069 , A01D34/6812 , F16D2043/145
Abstract: 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.
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公开(公告)号：US11819968B2
公开(公告)日：2023-11-21
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
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 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：US20230191575A1
公开(公告)日：2023-06-22
申请号：US18108917
申请日：2023-02-13
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： 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
Abstract: 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.
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公开(公告)号：US20230000011A1
公开(公告)日：2023-01-05
申请号：US17855217
申请日：2022-06-30
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Beth E. Cholst , Mackenzie J. Nick
IPC: A01D34/416
Abstract: A string trimmer assembly includes a trimmer head rotatably driven by a drive shaft and defining a cavity, a spool supported in the cavity of the trimmer head and operable to support line to be dispensed, and a flange formed on the spool. The spool includes a through hole for receiving the line, which is dispensable though an opening in the trimmer head. The flange is formed on the spool in a common plane with the opening and with the through hole. The flange separates the line into a first line portion and a second line portion. The first line portion is positioned on a first side of the flange, and the second line portion is positioned on a second side of the flange.
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公开(公告)号：US20230000010A1
公开(公告)日：2023-01-05
申请号：US17855113
申请日：2022-06-30
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Beth E. Cholst , Troy C. Thorson
IPC: A01D34/416
Abstract: A trimmer head for use with a string trimmer including a drive shaft includes a housing rotatable about a rotational axis. The housing includes a main body defining a cavity, and a cap removably coupled to the main body. The trimmer head further includes a spool supported in the cavity and operable to support line to be dispensed, a retainer positioned between the housing and the spool, and a nut positioned within the spool and configured to drivingly couple to the drive shaft.
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