Abstract: Various embodiments are shown for sensing when an exterior vehicle light is turned on and for displaying the condition that the exterior vehicle light is on or operating. Solar cells are used to sense that the exterior vehicle light is on and to provide an electrical current to a display unit that indicates that the exterior vehicle light is on. A wireless arrangement is also disclosed as well as an all-in-one unit is disclosed for sensing when a exterior vehicle light is on and for displaying by a visual and/or audio indication that the exterior vehicle light is on.

Abstract: A compact lighted mirror-type inspection tool which can be held in the hand of the tool operator and manipulated at arms-length for the illumination and viewing of equipment components which are out of the line-of-sight vision of the tool operator. The tool is comprised of a two-part housing that may be hand gripped by the operator with the housing including a lower section consisting of an electrical component compartment having a removable bottom access cover and an upper mirror support bracket. A mirror assembly, including an upper mirror and an underlying protective mirror frame, is removably gripped within the upper mirror support bracket by its end walls. A mirror light mount is affixed to the mirror support bracket at one of its end walls and bears a mirror light for illuminating the reflecting surface of the mirror and projecting light onto the equipment components which are to be reflectively viewed by the operator.

Abstract: An acoustic signal and sound diagnostic instrument, for use by a professional automotive engine or industrial machinery maintenance operator, which is capable of locating and discriminating automotive engine and industrial machinery abnormalities. The instrument includes an acoustic transducer microphone, located at the forward end of an elongated deformable, semi-rigid probe arm, for detecting and converting acoustic signals and sounds into electromagnetic signals and an electronics housing conformed to be held in the hand of the maintenance operator with the housing mechanically supporting the probe arm at its rearward end. Pre-amplifier circuitry within the housing is electrically coupled to the transducer microphone and to range selector circuitry for selecting sound level ranges respecting the electromagnetic signals.

Abstract: A vibration and acoustic sound diagnostic instrument for use by a professional automotive maintenance mechanic which is capable of discriminating audible vibration sound and noise generated by under-chassis and under-hood parts and devices having mechanical faults. The instrument includes at least one acoustic vibration pick-up device adapted for mounting in contact with an automotive part or device for detecting and converting vibratory acoustic signals and sounds into electromagnetic signals and an electronics housing conformed to be held in the hand of the maintenance mechanic. Pre-amplifier circuitry within the housing is electrically coupled to the acoustic vibration pick-up device and to range selector circuitry for selecting sound level ranges respecting the electromagnetic signals. A decibel meter, mounted to the exterior of the housing, is electrically interconnected to the pre-amplifier for visually indicating changes and peaks in the sound levels detected by the transducer microphone.

Abstract: An improved brake system for wheeled baby carriers, including baby strollers and baby carriages, whereby when the carrier is at rest and not being pushed by an attendant person, the wheels of the carrier are automatically locked so that accidental rolling movement thereof is inhibited. In accordance with the invention the push handle of the carrier has associated therewith a brake release handle or bar which is interconnected by a brake release cable to a brake shift bar mechanically connected to the brake levers associated with the rear wheels of the carrier. The brake shift bar is resiliently biased by one or more biasing elastic bands or springs to a position which causes the brake levers to normally lock the rear wheels against rotation.

Abstract: An electronic musical adaptor for removable attachment to a baby nursing bottle to produce a musical tune to soothe and amuse the baby upon movement of the bottle during the feeding process. The adaptor comprising a cup-shaped housing, a melody producing circuit including an integrated circuit microchip within which is stored musical tune information, a battery power source, a buzzer-type speaker and a motion-activated microswitch for activating the microchip, and a wafer-like container encapsulating the melody producing circuit removably situated within the cup-shaped housing proximate the bottom thereof.

Abstract: A baby entertainment and learning apparatus for highchairs including a removable tray having in its top surface a series of pressure sensitive microswitches. A series of interchangeable tray top panels, each presenting a series of depressible picture blocks, may be selectively placed on the highchair tray for overlaying and activating the microswitches of the tray. Each tray top panel has a panel identity device. Circuitry components are mounted to the underside of the tray and include: an integrated circuit microchip within which is stored voice, sound and musical information; a low voltage battery power source; an audio speaker; and panel switches corresponding in number to the series of tray top panels and each positioned to interact with a single panel identity device.