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公开(公告)号：US10759021B2
公开(公告)日：2020-09-01
申请号：US15645356
申请日：2017-07-10
申请人： JPW Industries Inc.
发明人： Steven Myers
摘要： A drum sander having a fin for deflecting airflow around the drum and directing dust and debris to a dust collecting outlet. The fin includes a first section at a first angle and a second section at a second angle that directs air movement generated by the operating drum toward the dust collecting outlet. The free edge of the fin is shaped to wrap partially around the drum in two helical inclined planes. A tool free adjustment of parallelism may be provided. The workpieces are pulled through the sander rather than being pushed through. Lightweight materials reduce stress on the assembly. Heat is dissipated by the configuration and material of the drum.
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公开(公告)号：US10189136B2
公开(公告)日：2019-01-29
申请号：US15251051
申请日：2016-08-30
申请人： JPW Industries Inc.
发明人： Micah A. Coleman
摘要： A power tool includes a control for the motor of the power tool that senses an operating characteristic of the motor and controls the operation of the power tool based on the sensed characteristic. The sensed characteristic includes variations in reluctance of the motor. A controller may sense changes on load on the motor as a result of interaction between a working element such as a saw blade or drill bit and the work piece. The controlled operation may include variation in speed or torque or both, or may include stopping the motor. Emergency conditions may be sensed by changes in reluctance.
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公开(公告)号：US20170304915A1
公开(公告)日：2017-10-26
申请号：US15472472
申请日：2017-03-29
申请人： Steven Myers , Charles Weber
发明人： Steven Myers , Charles Weber
CPC分类号： B23D51/125 , B23D49/007 , B23D51/14 , B23D59/006
摘要： A blade clamp with first and second gripping members configured to hold a cutting blade, a lever connected to the clamp by a connection member, and a head that receives the connection member that extends through an aperture of the head. The connection member can move along a first axis through the aperture of the head and move the clamp along the first axis based on a position of the lever. The first and the second gripping members of the clamp can clamp the cutting blade along a second axis orthogonal to the first axis based on a position of the clamp along the first axis. The lever can include an eccentric cam surface that engages a cam follower. The eccentric cam surface can cause the clamp to provide a clamping force and tension to the cutting blade.
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公开(公告)号：US09791357B2
公开(公告)日：2017-10-17
申请号：US14811155
申请日：2015-07-28
申请人： Steven Myers , Charles Weber
发明人： Steven Myers , Charles Weber
摘要： An overload indicator for a hoist includes first and second blocks that connect to the lifting medium (a chain for a chain hoist) at spaced locations. The first and second blocks are held at a spacing by indicator bands so that the lifting medium is slack between the blocks. The indicator bands have weakened portions to deform, stretch or break when subject to a load over a threshold, such as over a lifting capacity of the hoist. Covers are provided over the indicator bands that are closely spaced to define an indicator gap. If the indicator bands stretch, the indicator gap increases to indicate an overload condition.
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公开(公告)号：US20170136595A1
公开(公告)日：2017-05-18
申请号：US14951757
申请日：2015-11-25
申请人： Martin Gardner , Charles Weber , Benjamin Carlson
发明人： Martin Gardner , Charles Weber , Benjamin Carlson
CPC分类号： B23Q17/2404 , B23B25/04 , B23Q11/0891
摘要： A lathe or other rotating machine includes a tool rest on a carriage that is movable along the work piece. The carriage includes a post that is movable with the tool rest. The post supports a guard that is disposed between the user and the work piece. The guard may include a frame surrounding a transparent portion. The frame may support a plurality of light emitting elements directed onto the work piece. An extendable/retractable transparent portion may be extended from the guard between the user and the work piece. The extendable/retractable portion and/or the transparent portion may be a magnifier.
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公开(公告)号：US20170057038A1
公开(公告)日：2017-03-02
申请号：US15251051
申请日：2016-08-30
申请人： Micah A. Coleman
发明人： Micah A. Coleman
CPC分类号： B23Q17/0957 , B23Q11/0085 , B23Q11/0092 , B23Q15/08 , B23Q17/0952 , B23Q17/0961 , B23Q17/098 , B23Q17/0985 , B23Q17/099 , Y10T408/165 , Y10T408/172 , Y10T408/173
摘要： A power tool includes a control for the motor of the power tool that senses an operating characteristic of the motor and controls the operation of the power tool based on the sensed characteristic. The sensed characteristic includes variations in reluctance of the motor. A controller may sense changes on load on the motor as a result of interaction between a working element such as a saw blade or drill bit and the work piece. The controlled operation may include variation in speed or torque or both, or may include stopping the motor. Emergency conditions may be sensed by changes in reluctance.
摘要翻译： 电动工具包括用于感测电动机的工作特性的电动工具的电动机的控制，并且基于感测到的特性来控制电动工具的操作。 感测特性包括电机磁阻的变化。 控制器可以感测由于诸如锯片或钻头的工作元件与工件之间的相互作用而导致的电动机上的负载变化。 受控操作可以包括速度或扭矩的变化或两者，或者可以包括停止电动机。 紧急情况可能是由磁阻的变化感觉到的。
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公开(公告)号：US20230398615A1
公开(公告)日：2023-12-14
申请号：US18209029
申请日：2023-06-13
申请人： JPW INDUSTRIES INC.
CPC分类号： B23D55/10 , B23D55/02 , B23D55/082 , B23D59/001
摘要： A band saw is disclosed that includes a frame, a guide wheel, and a blade disposed around the guide wheel. A guide wheel chassis can be movably disposed on the frame, the guide wheel rotatably disposed on the guide wheel chassis. The band saw can include a blade tension adjustment assembly including a tensioning motor, wherein operation of the tensioning motor produces movement of the guide wheel chassis and the guide wheel relative to the frame to adjust the tension of the blade. A tension gauge can be positioned to determine a tension in the blade, and a controller can be communicated with the tensioning motor and the tension gauge, the controller operable to receive tension data from the tension gauge and control operation of the tensioning motor based on the tension data to control the tension of the blade.
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公开(公告)号：US20210060719A1
公开(公告)日：2021-03-04
申请号：US17017603
申请日：2020-09-10
申请人： JPW Industries Inc.
发明人： Micah A. Coleman
摘要： A power tool includes a control for the motor of the power tool that senses an operating characteristic of the motor and controls the operation of the power tool based on the sensed characteristic. The sensed characteristic includes variations in reluctance of the motor. A controller may sense changes on load on the motor as a result of interaction between a working element such as a saw blade or drill bit and the work piece. The controlled operation may include variation in speed or torque or both, or may include stopping the motor. Emergency conditions may be sensed by changes in reluctance.
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公开(公告)号：US10377019B2
公开(公告)日：2019-08-13
申请号：US16022333
申请日：2018-06-28
申请人： JPW Industries Inc.
摘要： A work holding device includes a first jaw piece having an elongated first connection member for connecting the work holding device to a support. The first connection member defines a first passage. A second jaw piece has an elongated second connection member positionable within the first passage. The second connection member defines a second passage in communication with the first passage. A spindle assembly movably couples the second jaw piece to the first jaw piece. The spindle assembly is configured to move the second jaw piece with respect to the first jaw piece to create a clamping pressure when an object is placed between the first jaw piece and the second jaw piece.
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公开(公告)号：US10207348B2
公开(公告)日：2019-02-19
申请号：US15176736
申请日：2016-06-08
申请人： JPW Industries Inc.
发明人： Steven Myers , Charles Weber
摘要： A blade guide for a band saw tool includes an adjustment channel mounted to a blade housing. The adjustment channel has a bracket plate with two recesses at an angle to one another. A roller bracket has a ridge that fits into one or the other recess, the roller bracket including rollers to guide the band saw blade. A single screw holds the roller bracket to the bracket plate. The roller bracket may be moved to the other recess to impart a twist to the blade. The blade is used without a twist when the band saw tool is configured for vertical cutting and is used with a twist when the band saw tool is configured for horizontal cutting.
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