Abstract: Techniques for facilitating communication between an implantable medical device and an external device are provided. In one example, a method comprises broadcasting, via communication circuitry of an implantable device, a first set of advertisements at a first advertising rate according to a communication protocol. The method further comprises determining that detection circuitry of the implantable device detected voltage induced by an electromagnetic field at an interface between tissue of a patient and electrodes of the implantable device and in response to the detection of voltage induced by the electromagnetic field, broadcasting, via the communication circuitry, a second set of advertisements at a second advertising rate according to the communication protocol. The second advertising rate is greater than the first advertising rate.

Abstract: A device for storing and carrying hole saws comprises a stack pin and a retaining handle removably attachable to the stack pin. The stack pin has a widened “bun” or head at one end and a lateral keyhole slot near its other end. One end of the handle has a key-like element, by which the handle can only be detached from the stack pin when the key is properly aligned with the stack pin's keyhole slot. For use, the handle is detached from the stack pin by first orienting the handle to align the key with the keyhole slot and by then sliding the handle through the keyhole slot. Subsequently, hole saws are nested and stacked onto the stack pin, and the handle is re-attached to the stack pin, preventing the hole saws from being removed from the stack pin.

Abstract: A rotary, tubular hole cutter for quickly cutting holes through materials such as wood, fiberboard, and drywall. The device includes a tubular member with a backing plate attached to one end, with holes in the backing plate that enable the attachment of a conventional heavy-duty hole saw arbor. The device includes three equally spaced gullets, each of which has a cutting bit mounted adjacent to the trailing edge of the gullet, with the cutting face lying in the direction of rotation. The combination of three gullets and cutting bits, along with the cutting bit geometry, enable fast extraction of the “puck” or core from the tubular member after the cut is completed, by hand or other suitable device. The nature and aggressiveness of the cutting action is limited by the geometry of the cutting bits and their relationship to the top surface of the tubular member.

Abstract: An improved double-locking mechanism for handcuffs is disclosed. In the preferred embodiments, a standard pawl and multi-piece slide-bolt assembly have been modified to prevent premature sliding of the bolt into its "double-locking" position, and to prevent dislodging of the bolt back into its "non-locking" position. The unique slide bolt, or the nearby lock casing, is angularly offset to create a fulcrum. The bolt also has an underlying tab that is designed to rest in either of two side-by-side locator notches atop a cuff's pawl. One notch firmly locates the bolt in a double-locking position, while the other notch normally keeps it in a non-locking position. To shift the bolt into its double-locking position, an authorized user presses any suitable actuator (e.g., the tiny end of a handcuff key or a ball-point pen end) against an exposed inclined end of the bolt. This pivots the bolt about the fulcrum and against the casing, so that it lifts the tab out of the non-locking locator notch.

Abstract: An improved hinge assembly is disclosed for interconnecting a pair of handcuffs. In the preferred embodiment, the hinge assembly comprises two parallel single-link hinges that are pivotally attached to the cuffs by trunnion pins. Each link has unique oversized slots, through which the pins extend. This permits the cuffs, when side-by-side, to collapse against one another; and it enables the cuffs to move away from each other for compact wearing over a user's belt. In addition, the trunnion pins are captured within the cuff frames. This avoids tampering found with exposed pivot pins in prior multi-link hinges.

Abstract: Quick-release arbor for hole saws has a generally cylindrical shaft with a threaded end portion for a screw-fitted connection to the threaded bore of a hole saw. A collar is disposed about the shaft, includes a shank, at one end, adapted for connection to a power driven chuck and, at its other end, a pair of diametrically spaced-apart drive-pins. The collar and shaft are characterized, respectively, by inner and outer diameters which provide a clearance therebetween so that the collar and the shaft are both axially movable and rotatable relative to each other. A retainer carried by the collar and another retainer carrier by the shaft for interengagement with the one retainer.

Abstract: A sealed, quick-disconnect, hole-saw arbor is disclosed for affixing a hole saw to a drill. The arbor enables a standard hole saw to be firmly "snugged up" to a shoulder on the arbor, and then rotated without being "backed off" the shoulder, in order to align drive holes in the hole saw with adjustable drive bosses on the arbor. In the preferred embodiments, the sealed hole-saw arbor produces a gravity-responsive, reversible, one-way lock effect on a threaded mounting sleeve. Letter indicators "T" and "L" on the arbor help the user position the arbor in a tighten or loosen position. Holding the arbor so that the "T" is upright, positions the arbor in the tighten position. The mounting sleeve is thereby secured against movement in a tighten direction and the hole saw is then threaded onto the sleeve and "snugged up" to the shoulder on the sleeve.