Abstract: A device for retaining an electronically readable card in an electronic device includes a substantially V-shaped resilient retainer dimensioned to engage a portion of the card while the rest of the card remains exposed for electronic reading purposes. The resilient retainer is held in the electronic device by a clip having a first detent member. The retainer includes a second detent member which engages the first detent member as the retainer enters the slit during insertion of the card into the electronic device. The thicknesses of the retainer and the card and the width of the slit are selected so that the resilient retainer is firmly held in the electronic device.

Abstract: A mechanism for mounting a receiving/transmitting horn in a satellite dish includes a casing for supporting the horn and for shielding the coaxial cable connectors and a low noise block from rain, snow, wind and the sun. The casing includes a recessed portion arranged at an angle with respect to the longitudinal axis of the casing. The recessed portion slides into a feed-arm in a weatherproof manner. The longitudinal axis of the feed-arm is offset from the axis of the satellite dish. The casing, feed-arm, angle and horn support are dimensioned to optimally position the horn at the focal point of the parabolic dish.

Abstract: Integrally-molded with a plastic TV cabinet is a collapsible holding member. When a PCB is mounted on the TV cabinet at an assembly station, the collapsible holding member squeezes through an aperture in the PCB to temporarily secure the PCB to the TV cabinet. The partially-installed product is then moved to a screw driving station, where the PCB is permanently screwed to the TV cabinet.

Abstract: The back cover of a TV cabinet is provided with a J-shaped latch member for releasable reception in a slot disposed in the cabinet front during cabinet assembly. The back cover is equipped with a window for providing access to the latch member, so that a tool can be inserted into the cabinet enclosure through the slot to release the latch member. The cabinet front is provided with a partition surrounding the latch member to prevent inadvertent insertion of a tool into the cabinet enclosure beyond the partition.

Abstract: A relatively brittle sheet material, for example, a printed circuit board substrate, is subdivided into sections the boundaries of which are defined by apertures which permit the substrate to be fractured at the boundaries. Each aperture has side walls which intersect at points aligned along a separation line. Bending stresses are concentrated at the intersecting side walls to provide a clean straight fracture along the boundary.

Abstract: A heat sink for a transistor is provided which comprises a long and a short vertical portion joining a sloped upper surface. The transistor is bolted to the sloped surface with its leads extending below the bottom of the vertical portions. The transistor leads are inserted into a large slot in a printed circuit board, and the assembly is rotated to engage tabs on the short vertical portion and then the long vertical portion in mating holes in the printed circuit board. The assembly will then snap into place, with the transistor oriented at an oblique angle with respect to the plane of the board. There is no need to bend or preform the leads, and the oblique orientation of the transistor reduces the horizontal and vertical forces of vibration and thermal expansion and contraction by a factor of two.