Abstract: A power tool is provided including a tool housing; a rear tool cap separately formed from the tool housing and mounted on a rear end of the tool housing; and a motor. The motor includes a stator, a rotor shaft; a rear bearing mounted on the rotor shaft and supported by a central bearing pocket of the rear tool cap, and a rotor. The rear tool cap further comprises a constraining member extending from the radial body, where the constraining member is configured to engage a portion of the stator to securely locate the stator within the tool housing and pilot the rear bearing relative to the stator independently of the tool housing.

Abstract: Embodiments described herein relate to lubricating liquids and the application thereof to ostomy pouches. In some embodiments, an apparatus can include a container having an inner surface, and a lubricating liquid coated on the inner surface, between about 50 wt % and about 80 wt % of a primary lubricating oil, between about 0.01 wt % and about 2 wt % of an antioxidant, between about 0.1 wt % and about 10 wt % of a polymer, and between about 1 wt % and about 50 wt % of a secondary liquid, the secondary liquid configured to improve the solubility of the polymer in the primary lubricating oil. In some embodiments, the container includes an ostomy pouch. In some embodiments, the apparatus further includes a contact product disposed in the container and in contact with the lubricating liquid. In some embodiments, the contact product includes stool.

Abstract: An electric brushless DC motor is provided including a stator assembly, a rotor assembly having a rotor body and at least one rotor magnet, and a molded structure including a first mold member extending within the rotor body in contact with the at least one rotor magnet, a second mold member extending integrally from the first mold member beyond a first axial end of the rotor body to engage a first axial end surface of the at least one magnet, and a third mold member extending integrally from the first mold member beyond a second axial end of the rotor body to form a fan at or adjacent the second axial end of the rotor body. The fan generates airflow through the stator assembly with a rotation of the rotor body.

Abstract: A power tool includes a housing and a brushless motor with a rotor and a stator assembly. The motor defines a motor envelope bounded by a rear plane at a rearmost point of the stator assembly and rotor, a front plane at a frontmost point of the stator assembly and rotor, and a generally cylindrical boundary surrounding a radially outermost portion of the stator assembly and rotor. A rotor shaft is rotatably driven by the rotor. A transmission includes an input member rotatably driven by the rotor shaft and an output member. A first bearing supporting the rotor shaft is at least partially received within the motor envelope. A second bearing supporting the rotor shaft or a component of the transmission is at least partially received within the motor envelope. A support plate supporting a component of the transmission may be at least partially received within the motor envelope.

Abstract: A tool is provided including a motor, a power switch circuit disposed between a power source and the motor, and a control unit that controls the power switch circuit to drive the motor. The control unit is configured to apply a current clip threshold to a current passing through a bus line located between the power source and the power switch circuit to maintain a peak current of the bus line at approximately the current clip threshold. The control unit is further configured to variably control the current clip threshold based on the current passing through the bus line.

Abstract: Charging circuitry for charging a bootstrap capacitor that provides a gate drive voltage to a high-side switch of switching circuitry, wherein a first terminal of the bootstrap capacitor receives a variable voltage, the charging circuitry comprising: current source circuitry configured to supply a charging current to the bootstrap capacitor; a charging switch for selectively coupling the current generator circuitry to the bootstrap capacitor to permit charging of the bootstrap capacitor by the current generator circuitry; and control circuitry configured to control operation of the charging switch to charge the bootstrap capacitor to at least a predefined target voltage, wherein the predefined target voltage is referenced to the variable voltage.

Abstract: Circuitry for supplying a bias voltage to a replica sense device of current sensing circuitry for a switch of a switching circuit, the circuitry comprising: multiplexer circuitry configured to receive a first voltage and a second voltage, wherein the first voltage is a floating voltage and the second voltage is a fixed voltage, wherein the multiplexer circuitry is configured to select and output one of the first voltage and the second voltage, such that the first voltage is output by the multiplexer circuitry when the switch is switched on and the second voltage is output by the multiplexer circuitry when the switch is switched off.

Abstract: An electric brushless DC motor is provided including a rotor assembly having a substantially-cylindrical metallic rotor body and at least one rotor magnet mounted on a surface of the rotor body, a stator assembly rotatably disposed relative to the rotor assembly, and a molded structure formed in contact with the rotor body. The molded structure includes a first mold portion in engagement with the rotor body that integrally forms a fan at or adjacent an axial end of the rotor body, and a second mold portion extending integrally from the first mold portion at least partially in engagement with an inner surface of the rotor body. The second mold portion engages two axial ends of the at least one magnet to axially support and retain the at least one magnet relative to the rotor body.

Abstract: A power tool is provided including a housing including a first housing half and a second housing half mating together along a mating plane, and an electric motor disposed within the housing. The electric motor includes a stator having a plurality of stator windings, a rotor shaft extending within the stator along a longitudinal axis, a rotor having a plurality of magnets and mounted on the rotor shaft within the stator, and a bearing support structure located adjacent the stator to support a bearing mounted on the rotor shaft. At least one retention clip is radially mounted on the electric motor to retain the stator relative to the bearing support structure.

Abstract: Polymers having an acrylic-olefin backbone prepared from a monomer composition comprising at least one C1-30 (meth)acrylic compound and at least on alpha-olefin having a chain length of at least 20 carbon atoms (a “C20+ ?-olefin”). The resulting polymer has at least 30 wt % of the alpha-olefin incorporated therein. The polymers may be used in rust preventative compositions to reduce rust formation on items having metal components.

Abstract: A power tool is provided including a tool housing, a motor housing, and a brushless DC motor including a stator and a rotor received within the motor housing. The stator includes a stator lamination stack, an end insulator, and stator terminals supported by the end insulator. A power circuit board including power switching elements is mounted adjacent the motor housing, and tab portion of the stator terminals extend through openings of the motor housing and are physically and electrically coupled with the circuit board.

Abstract: A disposable kit for a bioprocessing system includes a tray having a spine having a first window and a second window, at least one bioprocessing vessel received within the tray, a pinch valve manifold removably received by the spine within the first window, a first tubing segment removably received by the spine within the second window, and a second tubing segment removably received by the spine within the second window.

Abstract: A brushless direct-current (BLDC) motor for a power tool outputs a maximum power output in the range of approximately 450 to 950 watts and a continuous power output in the range of approximately 400 to 730 watts over a discharge cycle of the battery pack when the battery pack has a maximum voltage of approximately 20 volts and a capacity of approximately 5 amp·hours. The motor includes a rotor with an outer diameter that is less than or equal to approximately 16 mm. A ratio of the maximum power output of the motor to a length of the motor is in the range of approximately 8.5 to 17.5 W/mm.

Abstract: An electric motor is provided including a motor housing having a substantially cylindrical body; a stator disposed within the motor housing, the stator including a stator core, a first end insulator mounted to one end of the stator core, a second end insulator mounted to another end of the stator core, and stator windings wound around the stator core and the first and second end insulators; and a rotor rotatably received within the stator and including a rotor shaft extending along a longitudinal axis and a plurality of permanent magnets. The motor housing is fastened to the first end insulator via at least one fastener received into a threaded opening of the first end insulator. The second end insulator is not fastened directly to the motor housing so as to be axially unconstrained relative to the motor housing to accommodate for axial tolerances associated with the stator.

Abstract: A power tool is provided including a tool housing including a motor housing and a handle portion; a battery receptacle disposed at an end of the handle portion opposite the motor housing, the battery receptacle being configured to receive a battery pack; and a brushless DC motor including a stator and a rotor. The stator includes a stator lamination stack, an end insulator, and input terminals supported by the end insulator. A power circuit board is coupled to the input terminals to supply power to the motor. The motor produces a maximum power output of at least 1600 watts for driving an output shaft at a maximum torque of at least 30 inch-pounds and a maximum speed of at least 8000 rotations-per-minute.

Abstract: A power tool is provided including a housing having a grip portion with a grip circumference of smaller than or equal to approximately 120 mm; and a brushless direct-current (BLDC) motor at least partially disposed within the grip portion of the housing and configured to output a maximum power output of at least 450 watts. The motor includes a stator including a stator core and stator windings; and a rotor rotatably received within the stator and including a rotor shaft extending along a longitudinal axis and a series of permanent magnet rings mounted sequentially along the longitudinal axis and surrounding the rotor shaft, each permanent magnet including a plurality of magnetic poles.

Abstract: A stator assembly for a BLDC motor includes a stator core, at least one magnet wire wound on poles of the stator core, an end insulator mounted on an end surface of the stator core, a non-conductive mount member mounted on the outer circumferential surface of the stator core, and conductive terminals mounted on the non-conductive mount member. Each conductive terminal includes: a main portion mounted on the non-conductive mount, a tang portion extending from a first longitudinal end adjacent the end insulator and folded over the main portion, and a connection tab extending angularly from a second longitudinal end. A contact portion of the magnet wire is wrapped around the tang portion and fused to make an electric connection to the conductive terminal.

Abstract: An electric brushless DC motor is provided including a rotor assembly having a substantially-cylindrical metallic rotor body and at least one rotor magnet mounted on a surface of the rotor body, a stator assembly rotatably disposed relative to the rotor assembly, and a molded structure formed in contact with the rotor body. The molded structure includes a first mold portion in engagement with the rotor body that integrally forms a fan at or adjacent an axial end of the rotor body, and a second mold portion extending integrally from the first mold portion at least partially in engagement with an inner surface of the rotor body. The second mold portion engages two axial ends of the at least one magnet to axially support and retain the at least one magnet relative to the rotor body.

Abstract: A brushless direct-current (BLDC) motor is provided. The motor includes a stator including a stator core, stator teeth, and windings; a rotor shaft disposed within the stator and extending along a longitudinal axis; and a rotor. The rotor includes a rotor core including a body extending around the longitudinal axis, a permanent magnet mounted on the body of the rotor core, and a mold structure formed at least partially through the rotor core. In an embodiment, the mold structure engages two axial ends of the permanent magnet to axially retain the permanent magnet relative to the rotor core and integrally forms a fan adjacent the rotor core. In an embodiment, the permanent magnet includes at least one tooth extending from an axial end thereof and having angled side edges, and the mold structure engages the at least one tooth to fixedly secure the permanent magnet to the rotor core.

Abstract: A stator assembly for a BLDC motor includes a stator core, at least one magnet wire wound on poles of the stator core, an end insulator mounted on an end surface of the stator core, a non-conductive mount member mounted on the outer circumferential surface of the stator core, and conductive terminals mounted on the non-conductive mount member. Each conductive terminal includes: a main portion mounted on the non-conductive mount, a tang portion extending from a first longitudinal end adjacent the end insulator and folded over the main portion, and a connection tab extending angularly from a second longitudinal end. A contact portion of the magnet wire is wrapped around the tang portion and fused to make an electric connection to the conductive terminal.