Abstract: A light activated back-up alarm is provided for use with a vehicle having at least one white back-up light. It includes an optical sensor for attachment to the outside lens of the vehicle back-up light and an alarm circuit and battery encased within an alarm housing. The optical sensor is adhesively attached to the light and the alarm housing adhesively attached to some other portion of the vehicle.

Abstract: A light activated back-up alarm is provided for use with a vehicle having at least one white back-up light. It includes an optical sensor for attachment to the outside lens of the vehicle back-up light and an alarm circuit and battery encased within an alarm housing. The optical sensor is adhesively attached to the light and the alarm housing adhesively attached to some other portion of the vehicle.

Abstract: The invention is a dual reel cord take-up device for flat wire cable which has a generally semi-cylindrical upper and lower case half which snap together over a dual-purpose shaft to make two compartments. The first compartment is a cord extension and take-up compartment which is divided in two by a slotted disk on the dual-purpose shaft in that compartment. Flat wire cable is wound on the dual-purpose shaft in both compartments, and extends through two apertures in the walls of the compartment. The cable in one aperture is fixed so it does not move in and out of the aperture. The wire cable in the second aperture is free to extend or retract through the aperture. A spring provides the power to retract cable into the take-up device.

Abstract: The invention is a dual reel cord take-up device for flat wire cable which has a generally semi-cylindrical upper and lower case half which snap together over a dual-purpose shaft to make two compartments. The first compartment is a cord take-up compartment which is divided in two by a slotted rib on the shaft in that compartment. Flat wire cable is received in both sides of the compartment through apertures in the walls of the compartment. In the second compartment is a flat coil spring fixed on its outside end to a generally cylindrical spring cup within said compartment, and fixed on its inside end to the dual-purpose shaft in that compartment. The spring cup is biased against rotation except to tighten the spring, so the shaft is continually under tension to rotate and retrieve the cable into the take-up compartment.