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公开(公告)号：US11007631B2
公开(公告)日：2021-05-18
申请号：US14155767
申请日：2014-01-15
Applicant: Milwaukee Electric Tool Corporation
Inventor： Will Didier , Benjamin J. Ludy
Abstract: A bit retention assembly, for securing a tool bit to a spindle of a rotary hammer, includes a plurality of detent members movable in unison from a locking position to an insertion position in response to insertion of the tool bit within the spindle, a biasing member configured to bias the detent members toward the locking position, and a collar movable along the spindle between a first axial position and a second axial position. The collar has an annular wall at least partially defining a pocket. A first end of the biasing member is received within the pocket when the detent members are in the locking position such that the first end of the biasing member is radially constrained by the annular wall.
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公开(公告)号：US10946576B2
公开(公告)日：2021-03-16
申请号：US16000958
申请日：2018-06-06
Applicant: Milwaukee Electric Tool Corporation
Inventor： Corey Dickert , Alex Huber , Jarrod Kotes , Will Didier , Ian Zimmermann
Abstract: An expanding tool comprising: an actuator comprising a cylindrical housing that defines an actuator housing cavity; a primary ram disposed within the actuator housing cavity, the primary ram defining an internal primary ram cavity; a secondary ram disposed within the internal primary ram cavity; a cam roller carrier coupled to a distal end of the secondary ram; a drive collar positioned within a distal end of the actuator housing cavity; a roller clutch disposed within an internal cavity defined by an inner surface of the drive collar; a shuttle cam positioned between the roller clutch and a distal end of the primary ram; an expander cone coupled to the primary ram; and an expander head operably coupled to the drive collar.
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公开(公告)号：US20150197002A1
公开(公告)日：2015-07-16
申请号：US14155767
申请日：2014-01-15
Applicant: Milwaukee Electric Tool Corporation
Inventor： Will Didier , Benjamin J. Ludy
CPC classification number: B25D17/088 , B25D16/00 , B25D2217/0042 , Y10T279/17521
Abstract: A bit retention assembly, for securing a tool bit to a spindle of a rotary hammer, includes a plurality of detent members movable in unison from a locking position to an insertion position in response to insertion of the tool bit within the spindle, a biasing member configured to bias the detent members toward the locking position, and a collar movable along the spindle between a first axial position and a second axial position. The collar has an annular wall at least partially defining a pocket. A first end of the biasing member is received within the pocket when the detent members are in the locking position such that the first end of the biasing member is radially constrained by the annular wall.
Abstract translation: 用于将工具头固定到旋转锤的主轴的位保持组件包括多个棘爪构件，其响应于工具头在主轴内的插入而能够一致地从锁定位置移动到插入位置;偏置构件 被构造成将制动构件偏压到锁定位置，以及在第一轴向位置和第二轴向位置之间可沿主轴移动的凸缘。 衣领具有至少部分地限定口袋的环形壁。 当止动构件处于锁定位置时，偏压构件的第一端被容纳在口袋内，使得偏置构件的第一端由环形壁径向约束。
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公开(公告)号：US20250091184A1
公开(公告)日：2025-03-20
申请号：US18966818
申请日：2024-12-03
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Matthew R. Bailey , Will Didier , Jeffrey C. Hessenberger
IPC: B25C1/06
Abstract: A power tool includes an electric motor having a motor shaft and a fan assembly attachable to the motor shaft for rotation in a first rotational direction to generate an airflow for cooling the electric motor. The fan assembly includes a fan body, a bearing that rotates with the fan body, and a flywheel having a central portion that defines a central bore configured to receive the bearing so that the bearing is rotatably affixed to the flywheel. The power tool further includes a spring configured to receive torque from the electric motor such that the torque winds the spring to store energy when the electric motor is activated and release the energy to supply torque to the fan assembly so that the fan assembly continues to rotate and generate the airflow for cooling the electric motor when the electric motor is deactivated.
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公开(公告)号：US12162124B2
公开(公告)日：2024-12-10
申请号：US18138435
申请日：2023-04-24
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Matthew R. Bailey , Will Didier , Jeffrey C. Hessenberger
Abstract: A method of cooling an electric motor configured for use in a power tool. The electric motor has a motor shaft rotatable about a motor axis. The power tool further includes a fan assembly attachable to the motor shaft and an energy storage device coupled to the motor shaft and to the fan assembly. The method includes activating the electric motor to supply torque to the motor shaft. The method further includes rotating the motor shaft and the fan assembly about the motor axis. The fan assembly generates an airflow to cool the electric motor. Moreover, the method includes supplying torque from the electric motor to the energy storage device and deactivating the electric motor to stall rotation of the motor shaft. The fan assembly continues to rotate about the motor axis to generate the airflow after rotation of the motor shaft has ceased.
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Patent Agency Ranking
公开(公告)号：US20210178657A1
公开(公告)日：2021-06-17
申请号：US17182849
申请日：2021-02-23
Applicant: Milwaukee Electric Tool Corporation
Inventor： Corey Dickert , Alex Huber , Jarrod Kotes , Will Didier , Ian Zimmermann
IPC: B29C57/04
Abstract: An expanding tool comprising: an actuator comprising a cylindrical housing that defines an actuator housing cavity; a primary ram disposed within the actuator housing cavity, the primary ram defining an internal primary ram cavity; a secondary ram disposed within the internal primary ram cavity; a cam roller carrier coupled to a distal end of the secondary ram; a drive collar positioned within a distal end of the actuator housing cavity; a roller clutch disposed within an internal cavity defined by an inner surface of the drive collar; a shuttle cam positioned between the roller clutch and a distal end of the primary ram; an expander cone coupled to the primary ram; and an expander head operably coupled to the drive collar. When triggered, the actuator first rotates the expander head and then the actuator expands the expander head.
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公开(公告)号：US09862137B2
公开(公告)日：2018-01-09
申请号：US15133029
申请日：2016-04-19
Applicant: Milwaukee Electric Tool Corporation
Inventor： Corey Dickert , Alex Huber , Jarrod Kotes , Will Didier , Ian Zimmermann
IPC: B29C57/04 , B29K105/00 , B29K23/00 , B29L23/00
CPC classification number: B29C57/045 , B29K2023/0691 , B29K2105/258 , B29L2023/22
Abstract: An expanding tool comprising: an actuator comprising a cylindrical housing that defines an actuator housing cavity; a primary ram disposed within the actuator housing cavity, the primary ram defining an internal primary ram cavity; a secondary ram disposed within the internal primary ram cavity; a cam roller carrier coupled to a distal end of the secondary ram; a drive collar positioned within a distal end of the actuator housing cavity; a roller clutch disposed within an internal cavity defined by an inner surface of the drive collar; a shuttle cam positioned between the roller clutch and a distal end of the primary ram; an expander cone coupled to the primary ram; and an expander head operably coupled to the drive collar. When triggered, the actuator first rotates the expander head and then the actuator expands the expander head.
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公开(公告)号：US20240246800A1
公开(公告)日：2024-07-25
申请号：US18421507
申请日：2024-01-24
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Garrett P. Mitchell , Evan M. Glanzer , Joseph W. Miller , Allison M. Neuser , Will Didier , Alicia G. Rothenberg , Beau A. Harrier , Daryl S. Richards
Abstract: A lifting device includes a base, a mast coupled to the base, a carriage coupled to the mast, and a lifting assembly configured to move the mast and carriage in a first direction to a desired elevation relative to the base. The lifting device also includes an electric motor, a battery pack for providing electrical power to the electric motor and a first spool with a first cable to alternately raise and lower the carriage in the first direction. The lifting device further includes an auxiliary drive unit including a second spool with a second cable to raise and lower the lifting device in a second direction different than the first direction.
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公开(公告)号：US12023849B2
公开(公告)日：2024-07-02
申请号：US17182849
申请日：2021-02-23
Applicant: Milwaukee Electric Tool Corporation
Inventor： Corey Dickert , Alex Huber , Jarrod Kotes , Will Didier , Ian Zimmermann
IPC: B29C57/04 , B29K23/00 , B29K105/00 , B29L23/00
CPC classification number: B29C57/045 , B29K2023/0691 , B29K2105/258 , B29L2023/22
Abstract: An expanding tool comprising: an actuator comprising a cylindrical housing that defines an actuator housing cavity; a primary ram disposed within the actuator housing cavity, the primary ram defining an internal primary ram cavity; a secondary ram disposed within the internal primary ram cavity; a cam roller carrier coupled to a distal end of the secondary ram; a drive collar positioned within a distal end of the actuator housing cavity; a roller clutch disposed within an internal cavity defined by an inner surface of the drive collar; a shuttle cam positioned between the roller clutch and a distal end of the primary ram; an expander cone coupled to the primary ram; and an expander head operably coupled to the drive collar. When triggered, the actuator first rotates the expander head and then the actuator expands the expander head.
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公开(公告)号：US20190134884A1
公开(公告)日：2019-05-09
申请号：US16241783
申请日：2019-01-07
Applicant: Milwaukee Electric Tool Corporation
Inventor： Corey Dickert , Alex Huber , Jarrod Kotes , Will Didier , Ian Zimmermann
IPC: B29C57/04
Abstract: An expanding tool comprising: an actuator comprising a cylindrical housing that defines an actuator housing cavity; a primary ram disposed within the actuator housing cavity, the primary ram defining an internal primary ram cavity; a secondary ram disposed within the internal primary ram cavity; a cam roller carrier coupled to a distal end of the secondary ram; a drive collar positioned within a distal end of the actuator housing cavity; a roller clutch disposed within an internal cavity defined by an inner surface of the drive collar; a shuttle cam positioned between the roller clutch and a distal end of the primary ram; an expander cone coupled to the primary ram; and an expander head operably coupled to the drive collar. When triggered, the actuator first rotates the expander head and then the actuator expands the expander head.
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