Abstract: A hole saw is disclosed herein. The hole saw can include a cylindrical body having inner and outer cylindrical surfaces concentric to each other about a first axis. The body can also extend along the first axis between first and second opposite ends. The hole saw can also include a plurality of teeth each including a tooth body and a carbide tip positioned on the tooth body and forming a tooth face. Each of the tooth faces can define one or more cutting edges. The teeth can be arranged in an alternating pattern including a first tooth in the form of a chisel tooth, a second tooth immediately behind the first tooth and in the form of an offset grind tooth, and a third tooth immediately behind the second tooth and in the form of a triple chip grind tooth.

Abstract: An AR headset is described to co-localize an image data set with a body of a person. One method can include identifying optical codes with a contrast medium in a tubing on the body of the person using the AR headset. The image data set can be aligned with the body of the person using the fixed position of the image visible marker with the contrast medium in the tubing with respect to the optical code referenced to a representation of the image visible marker. In one configuration, an image data set can be scaled by comparing a measured size of the image visible marker (e.g., gadolinium tubing) in the captured image data set to the known size of the image visible marker. In addition, a center of an optical code may be identified to more accurately align the image data set with a body of a person.

Abstract: As described above, one or more aspects of the present disclosure provide articles having structural color, and methods of making articles having structural color. The present disclosure provides for articles (e.g., structurally colored articles) that exhibit different structural colors in different regions of the article using an optical element, where the optical element has different structures (e.g., cross-sectional structures) in at least two of those regions.

Abstract: A semiconductor device includes a first switch and a first driver. The first switch selects and outputs one of a power supply potential and a generated potential as a first switch output potential based on a synchronization signal from a transmission circuit and a delayed signal delayed from the synchronization signal. The first driver charges a gate of a bipolar transistor element based on the synchronization signal of the transmission circuit and the first switch output potential.

Abstract: As described above, one or more aspects of the present disclosure provide articles having structural color, and methods of making articles having structural color. The article includes the optical element (e.g., a single layer reflector, a single layer filter, a multilayer reflector or a multilayer filter) including one or more layers (e.g., a reflective layer(s), a constituent layer(s), and the like). The surface of the article can include the optical element with regions that impart different structural colors. The different structural colors imparted are due at least in part to the different structure (e.g., cross-sectional structure) of the optical element in certain regions.

Abstract: An LED driver control circuit suitable for a LED driver operating under the Line Switch dimming protocol. The LED driver control circuit generates a control signal that can switch between a voltage level at a first node and a voltage level at a second node. The first node is connected to a three-phase input by a first voltage control circuit and the second node is connected to the three-phase input a second voltage control circuit. The first voltage control circuit controls the voltage level at the first node to be, in a first embodiment, greater than or, in a second embodiment, less than a voltage level of each phase of the 3-phase input for at least part of a cycle of the respective phase. The second voltage control circuit controls the voltage level at the second node to be, in the first embodiment, less than or equal to or, in the second embodiment, greater than or equal to a voltage level of each phase of the 3-phase input for the entirety of the cycle of the respective phase.

Abstract: A surgical clip applier and methods for applying surgical clips to a vessel, duct, shunt, etc., during a surgical procedure are provided. In one exemplary embodiment, a surgical clip applier is provided having a housing with a trigger movably coupled thereto and a shaft extending therefrom with opposed jaws formed on a distal end thereof. The trigger is adapted to advance a clip to position the clip between the jaws, and to move the jaws from an open position to a closed position to crimp the clip positioned therebetween. The surgical clip applier can include a variety of features to facilitate use of the device, including features to prevent misalignment of the jaws and clip therebetween, features to protect the jaws, and features to ensure proper closure of the jaws and clip therebetween.

Abstract: A method is described for forming a body having at least one through-going passage, said method has the steps of: a) providing a mixture comprising particles and at least one liquid pocket inside a curable matrix, b) subjecting said mixture to a first alternating voltage having a first frequency to form a body in which said at least one liquid pocket extends from a first surface of said body to a second surface of said body thereby forming at least one through-going passage lacking curable matrix, and c) curing said curable matrix into a cured matrix, wherein at least some of said particles are located at an interface between said at least one through-going passage comprising liquid and said cured matrix.

Abstract: An apparatus enables a commercial vehicle tire hub drum to be attached and detached. The apparatus includes a main body frame having traveling wheels mounted on a lower part thereof and holding means that face forward from the main body frame for holding upright a circular load mounted on a commercial vehicle. An attachment/detachment means executes an attachment/detachment operation of the load from above the holding means. A position adjustment device coupled to the main body frame adjusts the position of the holding means and the attachment/detachment means. Accordingly, the apparatus uses a hydraulic device providing a hydraulic driving force to conveniently attach or detach a load of various sizes to a vehicle from a fixed position while simultaneously adjusting the vertical position of a load-holding means.

Abstract: Crew egress pathways and crew egress pathway exits in aircraft, with the crew egress pathway exits comprising apparatuses, systems, and methods for reliable deployment and stowage of support straps within crew egress pathway exit hatches positioned, with crew egress pathway exit hatches configured to deploy within aircraft passenger compartments in aircraft.

Abstract: A press-fit window insert configured to provide secondary protection to an existing window, having a carrier, a fin, and a fastening clip. The carrier includes a substantially rigid framework having channels within the framework configured to securely accept one or more attachments. The fin extends from the carrier and includes a substantially flexible blade extending from a base portion of the fin. The base portion of the fin is configured to interlock the fin to the carrier. The fastening clip includes a substantially rigid brim extending from a base portion of the fastening clip. The base portion of the fastening clip is configured to interlock the fastening clip to the carrier.

Abstract: Ladders, ladder components and related methods are provided including embodiments of a hinge that may be used in a combination ladder. In one embodiment, a hinge mechanism includes a first hinge assembly and a second hinge assembly. The first and second hinge assemblies are coupled together for relative rotation about a defined axis. An adjustment mechanism enables the two hinge assemblies to be selectively locked or unlocked to prohibit or permit relative rotation, respectively. In one embodiment, the adjustment mechanism includes a lock plate displaceable along a first axis and a retainer displaceable along a second axis. The retainer is configured to hold the lock plate in a disengaged state until a release structure displaces the retainer away from the lock plate. The release structure may be configured to be actuated and displace the retainer upon relative rotation of the hinge assemblies to (or through) a predetermined angular configuration.

Abstract: A system configured to track the location of one or more peripherals operated by a user, the system comprising a tracking unit configured to determine a location of the one or more peripherals in dependence upon images captured by a camera associated with an HMD worn by the user, a generation unit configured to generate, in response to a determination by the tracking unit that one or more of the peripherals is not visible in the images, an array of home points behind the user, the home points being locations defined in dependence upon constraints upon the user's motion, an estimation unit configured to estimate the respective locations of non-visible peripherals in dependence upon the output of one or more inertial measurement units associated with each peripheral, and a selection unit configured to select a home point, from amongst the array of home points, for each of the non-visible peripherals, wherein the tracking unit is configured to generate a location for each non-visible peripheral such that the loc

Abstract: A drilling machine, in particular a magnetic core drilling machine. The drilling machine having a magnetic base to detachably secure the drilling machine to a surface. A drive motor is arranged in a housing and has a rotor shaft with a rotor shaft longitudinal axis that is connected in a power-transmitting manner via a gear mechanism to a tool spindle with a spindle longitudinal axis. A tool holder is connected to the tool spindle to receive a drilling tool. The spindle longitudinal axis is aligned substantially parallel to the longitudinal axis of the rotor shaft, and the tool spindle is axially adjusted along the longitudinal axis of the spindle relative to the drive motor and the magnetic base.

Abstract: A motorized accessory for a wheelchair includes a housing having a top end and a bottom end, a handlebar assembly secured to the top end of the housing, and a wheel assembly coupled to the lower end of the housing. The motorized accessory also includes an electric motor coupled to the wheel assembly that is configured to drive the wheel assembly. In addition, the motorized accessory includes a tow bar assembly having a proximal end coupled to the housing and extending outward to a free distal end, where the free distal end is configured to be removably coupled to the wheelchair. The motorized accessory is configured to latch to the manually driven wheelchair in order to convert the manually driven wheelchair into a motorized wheelchair.

Abstract: Retention clip assemblies, retention systems, and methods of using the same. The retention clip assemblies, retention systems and methods described herein may be used to retain glass lites and, potentially, other panels, in frame openings provided in fenestration unit frames.