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公开(公告)号：US11708821B2
公开(公告)日：2023-07-25
申请号：US17867207
申请日：2022-07-18
Applicant: Milwaukee Electric Tool Corporation
Inventor： James O. Myrhum, Jr.
IPC: F04B1/043 , F04B1/0413
CPC classification number: F04B1/043 , F04B1/0413
Abstract: Embodiments of the invention provide a pump assembly for a hydraulic tool. The pump assembly can include a reciprocating element that is configured to move between a retracted position and an extended position, a cam surface in the reciprocating element that can engage cam followers, a rotating element that can receive rotational input, and a base that can at least partially surrounds the rotating element. Movement of the cam followers along the cam surface can move the reciprocating element from the retracted position to the extended position.
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公开(公告)号：US11421665B2
公开(公告)日：2022-08-23
申请号：US16931637
申请日：2020-07-17
Applicant: Milwaukee Electric Tool Corporation
Inventor： James O. Myrhum, Jr.
IPC: F04B1/043 , F04B1/0413
Abstract: Embodiments of the invention provide a pump assembly for a hydraulic tool. The pump assembly can include a reciprocating element that is configured to move between a retracted position and an extended position, a cam surface in the reciprocating element that can engage cam followers, a rotating element that can receive rotational input, and a base that can at least partially surrounds the rotating element. Movement of the cam followers along the cam surface can move the reciprocating element from the retracted position to the extended position.
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公开(公告)号：US10940521B2
公开(公告)日：2021-03-09
申请号：US16004501
申请日：2018-06-11
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： James O. Myrhum, Jr. , Noah Z. Fang
Abstract: A swage mechanism operable to expand an inner diameter of tubing. The swage mechanism includes a housing defining a longitudinal axis, a plurality of jaws coupled to the housing and movable relative to the longitudinal axis for selectively gripping the tubing, and a ram including a cylindrical portion and a frusto-conical head portion. The frusto-conical head portion of the ram is insertable into the tubing to expand the inner diameter of the tubing.
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公开(公告)号：US11717876B2
公开(公告)日：2023-08-08
申请号：US17166001
申请日：2021-02-03
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： James O. Myrhum, Jr. , Noah Z. Fang
CPC classification number: B21D41/02 , B21D39/046 , B21D39/20 , B21D41/026 , B21D31/04 , B21D39/08 , B21D41/021 , B21D41/025 , B21D41/028 , B29C57/04
Abstract: A swage mechanism operable to expand an inner diameter of tubing including a housing defining a longitudinal axis, and a plurality of jaws coupled to the housing and movable radially outward relative to the longitudinal axis for selectively gripping an interior of the tubing. The jaws each include a first cam surface. The swage mechanism further includes a ram having a cylindrical portion and a frusto-conical head portion, and an arbor that is coupled to the housing and having a second cam surface. The frusto-conical head portion of the ram is insertable into the tubing to expand the inner diameter of the tubing. The second cam surface of the arbor is engageable with the first cam surface of each of the jaws to move the jaws toward or away from the longitudinal axis, wherein the second cam surface moves in a direction along the longitudinal axis.
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公开(公告)号：US11148312B2
公开(公告)日：2021-10-19
申请号：US16254169
申请日：2019-01-22
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： James O. Myrhum, Jr. , Troy C. Thorson , Jeremy R. Ebner , Sean T. Kehoe , Joseph H. Ellice , Jeffrey S. Holly
IPC: B26D5/12 , B26F1/34 , B25B27/14 , B21D28/34 , B21D28/00 , B25B27/10 , B25B21/00 , B21J15/20 , B25D16/00 , B25F5/00 , B21D28/24 , B25B7/12 , F15B15/18 , B25B23/00 , B26F1/38
Abstract: A hand-held knockout driver includes a main housing having a handle portion, a motor positioned within the main housing, a pump assembly driven by the motor, and a secondary housing coupled to the main housing and defining a bore therein. The hand-held knockout driver also includes a working piston moveable within the bore from a rest position to an actuated position to define a piston throw distance therebetween. The hand-held knockout driver also includes a draw stud coupled to the working piston, a die coupled to the secondary housing, and a punch coupled to the draw stud opposite the working piston for movement therewith relative to the die. The die has a depth greater than the piston throw distance.
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Patent Agency Ranking
公开(公告)号：US09016317B2
公开(公告)日：2015-04-28
申请号：US13955653
申请日：2013-07-31
Applicant: Milwaukee Electric Tool Corporation
Inventor： James O. Myrhum, Jr.
CPC classification number: B25F5/005 , F15B13/024 , F15B2211/31511 , F15B2211/324 , F15B2211/50518 , F16K15/18 , F16K17/048 , F16K17/168 , Y10T137/7876 , Y10T137/8593 , Y10T137/86928 , Y10T137/8704 , Y10T137/87394 , Y10T137/87555
Abstract: A valve for selectively fluidly communicating a first fluid volume and a second fluid volume includes a valve body, an inlet orifice in fluid communication with the first fluid volume, and an outlet aperture in fluid communication with the second fluid volume. The valve also includes an activation member axially movable relative to the valve body. The valve is operable in a first mode in which the valve opens in response to manual actuation of the activation member. The valve is operable in a second mode in which the valve opens when a pressure difference between the first and second fluid volumes reaches a predetermined value, and the valve closes when the pressure difference between the first and second fluid volumes is less than the predetermined value.
Abstract translation: 用于选择性地流体连通第一流体体积和第二流体体积的阀包括阀体，与第一流体体积流体连通的入口孔以及与第二流体体积流体连通的出口孔。 阀还包括相对于阀体可轴向移动的致动构件。 阀可在第一模式中操作，其中阀响应于致动构件的手动致动而打开。 阀可在第二模式中操作，其中当第一和第二流体体积之间的压差达到预定值时阀打开，并且当第一和第二流体体积之间的压力差小于预定值时阀关闭 。
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公开(公告)号：US11999042B2
公开(公告)日：2024-06-04
申请号：US17051396
申请日：2020-08-28
Applicant: Milwaukee Electric Tool Corporation
Inventor： James G. Ballard , James O. Myrhum, Jr.
CPC classification number: B25F5/005 , B25F5/00 , F15B15/1447 , F16K17/162 , B23D17/06 , B23D29/002 , F16K17/16 , F16K17/383
Abstract: Embodiments of the invention provide a ram assembly for a hydraulic tool. The ram assembly includes a ram piston having a ram cavity. The ram piston receives a hydraulic pressure reaction force. The ram assembly further includes an overload assembly disposed in the ram cavity or in a cavity defined by a manifold. The overload assembly includes a burst disc positioned at a first end of the ram cavity or manifold, a lock nut positioned at a second end of the ram cavity or manifold, and a spacer positioned between the burst disc and the lock nut. The spacer transfers a supporting force applied to the lock nut to the burst disc. The hydraulic pressure reaction force and the supporting force both act in the same direction, and thus, are additive forces acting on the burst disk.
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公开(公告)号：US11766800B2
公开(公告)日：2023-09-26
申请号：US16725009
申请日：2019-12-23
Applicant: Milwaukee Electric Tool Corporation
Inventor： James O. Myrhum, Jr. , Sean T. Kehoe
IPC: B26D7/26 , B26F1/44 , B21D28/34 , F16B37/08 , B26F1/38 , F16B21/09 , F16B37/14 , F16B39/28 , F16B35/04
CPC classification number: B26D7/26 , B21D28/343 , B26F1/386 , B26F1/44 , F16B37/085 , F16B21/09 , F16B35/045 , F16B37/14 , F16B39/28
Abstract: An apparatus for creating holes in a workpiece includes a knockout punch tool having a movable piston. The apparatus also includes a draw stud assembly having a connector attachable to the movable piston, a draw stud, and a quick connect mechanism including mating first and second thread segments on the connector and the draw stud, respectively. The connector and the draw stud are movable between a first relative orientation where the mating first and second thread segments are misaligned to permit axial movement between the connector and the draw stud, and a second relative orientation where the mating first and second thread segments are aligned and engaged to inhibit axial movement between the connector and the draw stud.
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公开(公告)号：US10195755B2
公开(公告)日：2019-02-05
申请号：US14921474
申请日：2015-10-23
Applicant: Milwaukee Electric Tool Corporation
Inventor： James O. Myrhum, Jr. , Troy C. Thorson , Jeremy R. Ebner , Sean T. Kehoe , Joseph H. Ellice , Jeffrey S. Holly
IPC: B26F1/34 , B26D5/12 , B25B27/14 , B21D28/34 , B21D28/00 , B25B27/10 , B25B21/00 , B21J15/20 , B25D16/00 , B25F5/00 , B21D28/24 , B25B7/12 , F15B15/18
Abstract: A hand-held knockout driver includes a main housing having a handle portion, a motor positioned within the main housing, a hydraulic assembly driven by the motor and including a reservoir containing hydraulic fluid, a secondary housing coupled to the main housing and defining a bore therein, a working piston moveable within the bore between a rest position and an actuated position, and a work zone defined between the secondary housing and the working piston into which pressurized hydraulic fluid discharged from the hydraulic assembly is received. One unit of fluid is added to the work zone to move the working piston from the rest position to the actuated position. The reservoir has a fill capacity no greater than about 1.5 units of fluid.
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公开(公告)号：US09782909B2
公开(公告)日：2017-10-10
申请号：US14755410
申请日：2015-06-30
Applicant: Milwaukee Electric Tool Corporation
Inventor： Sean T. Kehoe , James O. Myrhum, Jr.
CPC classification number: B26D7/26 , B21D28/34 , B21D28/343 , B26F1/40 , Y10T83/9476
Abstract: A draw stud connector, for use on a punch driver, includes a draw stud having a first end. The draw stud connector also includes a body defining an axis therethrough, the body forming a cavity having an open end, and a wedge at least partially positioned within the cavity and moveable with respect to the body both axially and radially. The wedge allows the first end of the draw stud to move axially into the cavity but does not permit axial removal of the first end of the draw stud from the cavity.
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