Abstract: An improved portable two-way radio comprises a systems module and a removably connected, shielded RF module. Split universal device connector apparatus is provided having an RF connector portion associated entirely with the shielded RF module and a control connector portion associated entirely with the control module, the RF and control connector portions being located physically proximate to each other so that a single multi-pronged universal device connector can be electrically and mechanically connected to both the RF connector circuitry through the control systems module.

Abstract: An improved arrangement for powering a two-way portable radio or the like comprises rechargable battery cells and sets of power input and output contacts interconnected to each other and the battery cells in such a way that the output contacts may be electrically connected to the battery cells for powering the radio, or to the input contacts for receiving power directly from a battery charger for dead battery operation while simultaneously recharging the battery cells, all battery pack contacts being electrically isolated from the battery cells in the latter mode of operation.

Abstract: An externally connectable control unit for a portable radio includes an array of contacts matching a similar array of contacts on a portable radio. At lest one control switch is electrically connected with such connector contacts and disposed internally of a switch housing structure. The internal switch is located in association with a recess formed in the housing and a removable plug is friction-fitted within the recess so as to establish a first electrical condition of the control switch--but which is also capable of being manually pulled out of the recess to establish a second electrical condition of the control switch. The meaning to be associated with the switch is determined by a programming device in the control unit which interfaces with the portable radio circuits and is utilized to perform predetermined radio functions. One or more additional switches may also be located on the switch housing (e.g.

Abstract: Precise capacitive coupling to a coil is provided by a coil form having a central winding portion for a coil and having transverse flanges at the ends of the winding portion. The flanges are shaped and dimensioned to fit in a structure or resonant cavity, and have facing grooves for receiving and holding a sheet of insulating material in a plane substantially parallel to the coil winding portion. A metallic plate of predetermined size and location is positioned on the insulating sheet, and provided with a connection to an external circuit. The metallic plate provides capacitive coupling to a coil wound on the winding portion. This coupling is of predetermined magnitude and repeatable consistency, since identical coil forms can be made to hold their respective insulating sheets and metallic plates in the same location.

Abstract: An easily assembled battery contact arrangement for a radio is formed of mating parts which can be assembled without tools and fitted into a mating receptacle in the radio. This arrangement includes an opening which accepts the terminal of a chargeable battery, and provides electrical connection to an external projection which permits the battery to be charged while the battery is in the radio.

Abstract: A housing for a two-way radio is formed of front and rear covers, left and right sides, a base plate, and a top control panel and cover. Certain pieces are provided with corresponding mating surfaces to aid in assembly, and the pieces are held together by screws and nuts. Selected pieces may be substituted to permit variations in internal structure and to provide different configurations without the need to change all of the other pieces.

Abstract: A battery is held in and connected to a radio receiver by an arrangement having a hollow cylinder that fits in the receiver, and that holds the battery. The cylinder is held in the receiver by first metallic clips. An associated first spring forms the negative connector to the receiver circuit. A closure cover having a metallic portion fits on one end of the cylinder. When a battery is positioned in the cylinder, the cover connects the negative terminal of the battery through the cylinder to the first metallic clips. A metallic contact is held by second metallic clips in the vicinity of the other end of the cylinder. When a battery is positioned in the cylinder, its positive terminal engages the metallic contact and is connected to the receiver circuit through an associated second spring.

Abstract: A multi-purpose kitchen appliance for performing the functions of food mixing, blending, and the grinding or chopping of food. A power unit includes a low speed and a high speed power delivery shaft at the upper end thereon which are connectable alternatively to a blender vessel or a transversely extending head including gearing to drive a pair of food mixing elements. The head for driving the mixing elements is provided with means for detachably supporting and driving other attachments such as a food grinder. The power unit rests on a base having a laterally extending portion which has a turntable supporting a bowl into which the food mixing elements extend when the transversely extending head is positioned for food mixing. The transverse head is mountable on the power unit in alternate positions so that by connecting the food grinder to the gear train in the head, the chopped food or meat may be delivered to the bowl position on the turntable.

Abstract: A grill for a loudspeaker has a relatively thick metallic plate with a loudspeaker opening and a plurality of T-shaped bars across the opening, and a relatively thin metallic plate with a loudspeaker opening and a plurality of U-shaped bars across the opening. The plates are mounted together so that the U-shaped bars are located between but spaced from the T-shaped bars to provide physical protection to and good acoustic qualities for the loudspeaker. The relatively thick metallic plate provides a good heat sink for electronic equipment.

Abstract: A multi-purpose kitchen appliance for performing the functions of food mixing, blending, and the grinding or chopping of food. A power unit includes a low speed and a high speed power delivery shaft at the upper end thereon which are connectable alternatively to a blender vessel or a transversely extending head including gearing to drive a pair of food mixing elements. The head for driving the mixing elements is provided with means for detachably supporting and driving other attachments such as a food grinder. The power unit rests on a base having a laterally extending portion which has a turntable supporting a bowl into which the food mixing elements extend when the transversely extending head is positioned for food mixing. The transverse head is mountable on the power unit in alternate positions so that by connecting the food grinder to the gear train in the head, the chopped food or meat may be delivered to the bowl position on the turntable.