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公开(公告)号：US11638940B2
公开(公告)日：2023-05-02
申请号：US17814734
申请日：2022-07-25
发明人： David Rose , Christopher J. Turner
摘要： A drain cleaning machine includes a brushless direct current (DC) motor configured to rotate a snake about the snake axis. An electronic processor is configured to control power switching elements to drive the brushless DC motor. In a first operating range when a load experienced by the brushless DC motor is less than or equal to a predetermined load, the electronic processor is configured to control the power switching elements to drive the brushless DC motor at an approximately constant speed regardless of the load experienced by the brushless DC motor. In a second operating range when the load experienced by the brushless DC motor is greater than the predetermined load, the electronic processor is configured to control the power switching elements to drive the brushless DC motor at a decreasing speed as the load experienced by the brushless DC motor increases.
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公开(公告)号：US11633843B2
公开(公告)日：2023-04-25
申请号：US17018117
申请日：2020-09-11
发明人： Alexander Krug , Zbyn{hacek over (e)}k Kadlec , Günter Karg , Andrew Delmar Van Hoorn , Kevin Gee
摘要： A percussion tool is used for performing a chiseling operation on a workpiece with a chisel. The percussion tool comprises a housing including a cylinder portion, a tool holder coupled to the cylinder portion for holding the chisel, and a percussion mechanism including a striker supported for reciprocation in the cylinder portion. The percussion mechanism is configured to impart repeated axial impacts to the chisel with the striker. The percussion tool further comprises a flange between the cylinder portion and the tool holder. Movement of the chisel within the tool holder toward the percussion mechanism is stopped by the flange.
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公开(公告)号：US11633842B2
公开(公告)日：2023-04-25
申请号：US17382965
申请日：2021-07-22
发明人： Andrew R. Wyler , Nathan T. Armstrong , Jason D. Thurner , Troy C. Thorson , John S. Scott , Jeremy R. Ebner , Daniel R. Garces , Ryan A. Dedrickson , Luke J. Skinner , Benjamin R. Suhr
摘要： A gas spring-powered fastener driver includes a cylinder, a moveable piston, a driver blade attached to the piston, the driver blade movable with the piston, a lifter including a rotary component operably coupled to the driver blade to move the driver blade from a driven position to a ready position, and a multi-stage planetary transmission. The transmission includes an output shaft operatively coupled to the lifter to provide torque thereto, a first bearing supporting a first portion of the output shaft for rotation, a second bearing supporting a second portion of the output shaft for rotation. The fastener driver also includes a housing having a cylinder support portion in which the cylinder is received and a transmission housing portion in which the first and second bearings are received to rotatably support the output shaft. The cylinder support portion and the transmission housing portion are integrally formed as a single piece.
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公开(公告)号：US11631926B2
公开(公告)日：2023-04-18
申请号：US16951516
申请日：2020-11-18
摘要： A power tool including a battery pack interface configured to receive a battery pack. The battery pack interface includes one or more power terminals and one or more communication terminals. The power tool further includes a controller having an electronic processor. The controller is configured to receive, via the one or more communication terminals, a plurality of signals indicating a plurality of temperatures of the battery pack. The controller is further configured to determine, based on the signals, a battery pack type. The controller is further configured to control discharge of the battery pack based on the battery pack type.
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公开(公告)号：US11629956B2
公开(公告)日：2023-04-18
申请号：US17397598
申请日：2021-08-09
发明人： Matthew Leidel , Eric Mackey
IPC分类号： G01C9/26
摘要： A level with a clip and removable end cap is provided. The end cap includes an outer member and locking member received within a clip that is affixed inside an end of the level. The locking member is inserted into the outer member pushing a moveable portion of the outer member into an engagement, such as a shearing engagement, that holds the end cap assembly in place relative to the level body. The clip includes a projection that interfaces with an aperture in the level frame.
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6.发明授权公开(公告)号：US11622392B2
公开(公告)日：2023-04-04
申请号：US17182358
申请日：2021-02-23
IPC分类号： H04W76/10 , H04B17/318 , H04W4/80
摘要： A method and system for connecting a power tool with a mobile device. The mobile device receives a user request to connect to a power tool and transmits a short-range advertisement. The power tool receives the short-range advertisement and transmits a signal. The mobile device receives the signal from the power tool and determines a signal strength. The mobile device compares the signal strength to a predetermined signal strength value. When the signal strength value exceeds the predetermined signal strength value, the mobile device connects with the power tool.
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公开(公告)号：US20230099675A1
公开(公告)日：2023-03-30
申请号：US18052446
申请日：2022-11-03
IPC分类号： G01B3/1046 , G01B3/1005 , G01B3/1056
摘要： A tape measure including an elongate tape blade is shown. The tape measure includes a protective bumper that extends below the tape opening. The bumper is shaped to allow the tape hook to pivot during drop or impact to reduce the impact force experienced by the tape hook.
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公开(公告)号：US20230097967A1
公开(公告)日：2023-03-30
申请号：US17957394
申请日：2022-09-30
发明人： Justin Saboury , Vivek S. Nagal
摘要： A battery pack charger includes a housing, a plurality of battery receptacles supported by the housing each configured to receive a battery pack, a plurality of output power supplies, a plurality of charging circuits configured to transmit power from one of the plurality of output power supplies to one or more of the plurality of battery receptacles, a plurality of switches included in the plurality of charging circuits, and a controller. The controller is operable to receive signals from charging circuits that are indicative of battery packs being received by each of the battery receptacles, control the plurality of switches to one of a first position or a second position based on the input, and provide one of a first output power and a second output power to each of the battery pack receptacles.
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公开(公告)号：US20230094058A1
公开(公告)日：2023-03-30
申请号：US18075206
申请日：2022-12-05
发明人： Hans T. Banholzer
IPC分类号： B25F5/02
摘要： A power tool includes an elongated shaft forming a handle constructed of a non-conductive material and a tool head located at one end of the handle. The tool head includes a working element and a driven shaft configured to drive the working element. A powerhead located at an opposite end of the handle and includes an input shaft. A driveshaft extends between the tool head and the powerhead. The driveshaft is rotatably coupled to the input shaft and the driven shaft to transfer torque from the powerhead to the working element of the tool head. At least a portion of the driveshaft extending between the powerhead and the working element is constructed of a non-conductive material to inhibit transmission of electricity from the working element to the powerhead.
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公开(公告)号：US20230090819A1
公开(公告)日：2023-03-23
申请号：US18051749
申请日：2022-11-01
摘要： The present disclosure concerns a coupling mechanism for detachably attaching two or more utility modules to one another, utility assembles, mobile carriers and other attachable modules and articles.
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