Abstract: An improved IC chip actuator cover assembly for an IC socket includes a pedestal assembly spring-mounted to the bottom of a carrier housing and side leaf springs or other similar force transferring means on the pedestal assembly which transmit a z-axis force to the corner regions of the pedestal assembly for advancing the pedestal assembly in the z-axis direction against an IC chip in the IC socket. The compliance of the leaf springs maintains a constant and precise actuating force on the IC chip when the IC chip is contacted by the pusher end portion or portions of the pedestal assembly. In a preferred aspect of the invention, the front, back, and sides of the carrier housing define a central cavity region above the pedestal assembly for permitting air flow through the carrier housing to improve the heat dissipation capability of the cover assembly.

Abstract: A side frame for a loudspeaker rigging system has a frame structure mountable to the side of a loudspeaker, and links associated with the frame structure for linking together the corners of the frame structures of vertically adjacent side frames. The links associated with each side frame structure include a pivot link and splay adjustment link, each of which has a top extended end and a base end with a seating edge. Guide channels, which are located in the top corner regions of the frame structure to receive the base ends of a pivot link and splay adjustment link associated with a vertically adjacent side frame, have seating surfaces that conform to the seating edges at the base ends of the pivot and splay adjustment link. When base ends of these links seat in the guide channels, pin holes in the base end of the links self-align with pin holes in the corners of the frame structure for easy insertion locking pins.

Abstract: An umbrella base is comprised of a body portion containing a power source for powering umbrella lights or electrical devices or appliances used around the umbrella or other furniture accessory held by the base. A power console is provided for use on or above the base to provide connectivity to the power supply.

Abstract: A wear tip for a rotor of a centrifugal mineral breaker, comprises a carrier 80 having at least two wear edges 82, 84 each disposed transversely to the path of mineral material being ejected from the rotor. A longitudinally extending groove 122 between the first 82 and second 84 wear edges forms a rock retaining recession. Each wear edge 82, 84 has a wear face 108 with a recess 106 therein. An insert 112 of abrasion resistant material is disposed in each recess 106. Each insert 112 has an outer wear surface and an arcuate inner surface 114 conforming to the profile of the recess 106. The outer wear surface of each insert 112 is generally in planar alignment with the wear face 108 of one of the wear edges 82, 84.

Abstract: An improved contactor nest for receiving and holding IC devices against a pin board interposer during the test or burn-in of the devices includes a frame having an IC pocket with a top opening, which is oversized in relation to the footprint of the IC device for which the contactor is designed, and centering guide walls for guiding an IC device to be tested into the pocket from the oversized top opening to the IC device seating plane. The centering guide walls have a gradual angle relative to the insertion axis of the IC pocket, and extend down to a bottom perimeter portion of the IC pocket immediately adjacent the IC seating plane for gradually centering the IC device in the pocket as the IC device approaches the seating plane. Preferably, the angled guide walls extend far enough into the IC pocket to allow the spring pins of the pin board interposer to scrub the contact pads of the IC devices as the IC device is being centered.