Abstract: A speed detection signal sensor system for use with a vehicle. The system includes a signal sensing device positioned in a housing assembly. The housing assembly includes a reflective portion such as a mirror. The sensing device is positioned between the reflective portion and the housing. A sensor is positioned relative to the housing assembly and the reflective portion for sensing a speed detection signal which is directed towards the vehicle either from a forward position or a rearward position relative to the vehicle. A signal sensing indicator may be positioned relative to the housing assembly and generally in the reflective portion. Alternatively, the signal sensing indicator may be positioned externally of the housing assembly for attachment in a convenient location. The signal sensing indicator provides indicia that a speed detecting signal has been sensed by the detecting device.

Abstract: A radar detector system and method. The system includes a front-facing antenna and receiver and a rear-facing antenna and receiver. The two receivers are electrically connected to a single control head that includes separate light and sound indicators for each of the front-facing and the rear-facing receivers. A tone generator is included in the module to identify audibly the front-facing receiver and the rear-facing receiver.

Abstract: An injection molded housing for thick film ignition circuitry used in conjunction with automobile or other vehicle engines includes an integral lead frame for providing electrical connections between the circuitry and engine sensors and ignition components. To provide protection against lead frame failure as a result of vibration and thermal stresses encountered in the engine environment, residual stress cracking caused by varying flexure of the lead frame during the manufacturing process is prevented by utilizing a pre-mold base in which the lead frame is placed prior to subsequent encapsulating of both the lead frame and the pre-molded base. The result is a lead-frame housing construction of greater reliability.

Abstract: A remote radar detector head has a front control unit portion and a rear mounting surface portion which is thinner than the front head portion. The mounting surface portion extends rearwardly of the front head portion and extends downwardly or upwardly at an angle relative to the front head portion depending upon whether the detector head is in a first or inverted second mounting position. At a front panel of the front head portion, first and second escutcheons are provided with indicia inscribed thereon. In the first mounting position the first escutcheon is utilized while in the second or inverse mounting position the second escutcheon is employed with the indicia in reverse location thereon. The radar detector control unit can be conveniently mounted in a variety of locations within an automobile to insure ease of monitoring and control by the driver of the automobile who desires to sense incoming radar pulses.

Abstract: A battery charger for supplying charging current to the rechargeable battery of a portable battery powered device includes a one-piece housing and removable bottom plate. A first portion of the housing includes a receptacle for receiving the device. Upon insertion of the device into the receptacle electric contacts projecting from the bottom wall of the receptacle are biased by a spring acting against the bottom plate into electrical contact with the device to establish electrical communication between the device and charging circuitry within the housing. A first portion of the circuitry is contained within the first portion of the housing to provide mode indications and switch means user-actuable through an aperture in the bottom wall of the receptacle. A second portion of the circuitry is contained within a second portion of the housing having integral ribs on its exterior surface for improved heat dissipation.

Abstract: A housing for an electronic circuit board includes a housing member and identical top and bottom cover members. Inwardly extending ribs located on the interior sidewalls of the housing member align and support the circuit board, and provide convection cooling channels which allow air to circulate freely over the circuit board. The housing member is preferably an integrally cast member formed with integral fin surfaces which dissipate heat for the protection of temperature sensitive electronic components within the housing.

Abstract: A swivel base assembly for mounting radio apparatus or the like on a supporting surface includes a first support element for engaging the apparatus housing and a second support element for engaging the supporting surface. A spacing element in the form of a sphere allows relative movement between the support elements while maintaining a fixed minimum spacing. Locking means in the form of interlocking hook members draw the mounting plates into engagement with the spacer element to fixedly position the first plate with respect to the second plate and the supporting surface.

Abstract: A battery charger system for supplying charging current to either a battery-powered transceiver or to the rechargeable battery pack of the transceiver includes a housing housing a receptacle for receiving the transceiver. Upon insertion of the transceiver into the receptacle an electric contact projecting from the bottom wall of the receptacle contacts the transceiver to establish electrical communication between the device and charging circuitry within the housing. When supplying charging current to the battery pack an adapter having a smaller receptacle is inserted into the receptacle to establish electrical communication between the contacts and the battery pack. A reciprocatively mounted actuator stem in the adapter housing enables actuation of a deep-discharge mode select switch through an aperture in the bottom wall of the receptacle.

Abstract: A housing for a battery operated portable transceiver includes an elongated generally rectangular housing. A battery pack received in a recess in the housing forms in part a surface for gripping the housing. A combined latch and contact arrangement retains the battery pack in position and establishes electrical contact between the battery pack and the transceiver. A protective boot fitted to the lower end of the housing protects the transceiver from physical shock.

Abstract: A belt holder for portable radio apparatus and the like includes a belt fastener and a receptacle housing. The receptacle housing is pivotally mounted to the belt fastener. A clamp mechanism includes a sliding clamp body having two projecting clamp arms which engage the radio apparatus to prevent the apparatus from falling from the receptacle housing. A cam mechanism, operated with rotation of the receptacle housing with respect to the belt fastener, actuates the clamp mechanism to disengage the radio apparatus from the belt holder.

Abstract: A method and apparatus for producing a honeycomb pattern of projecting frameworks from a drop ceiling utilizes cardboard rectangular frameworks having four side walls with respective hinged locking flaps along a top edge of the side walls. As the cardboard frameworks are inserted from below into rectangular support frames of the drop ceiling, the hinged locking flaps are pushed flush against outside surfaces of the framework side walls until they clear the support frames. After clearance is achieved, the locking flaps assume a locking position wherein they abut against a corner formed by T-section channels of the drop ceiling defining the support frames.

Abstract: A personal electronic listening system is disclosed wherein miniature moisture-protected speakers are electrically connected for operation to a personal electronic unit such as a stereo attached to the wearer by a belt, for example. The speaker units have pins projecting therefrom which serve to mount the speaker units in the vicinity of the wearer's ears by penetration of the pins through an article of clothing on the wearer in the vicinity of his ears. A corresponding clip engages the pin after penetration of the clothing. The pins are electrically connected to the speaker and a cable from the personal electronic unit connects to these pins via the engagement clips. The pins perform the dual function of mounting the speaker and also providing electrical connection thereto.

Abstract: A mobile microphone mounting system is disclosed for a mobile microphone having an encasement surrounding a microphone element. A rear wall of the encasement has a pocket with a thin wall at a base thereof. A ring-shaped magnet is positioned within the pocket with a flat major surface alongside the thin wall. A mounting member is mounted through a central aperture of the magnet to provide alternative mounting for the microphone. The magnet is positioned between a metal plate and the thin wall. A lip surrounding the pocket retains the plate and magnet therein. The microphone may be conveniently attached by magnetic attraction to any nearby surface or preferably to a cup-shaped metal mounting plate. A compatible clip assembly is also provided for alternative mounting.