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US 4,395,696 AGranted
Plastic emergency power pack for vehicle trailer
OwnerRoger O. Menardinventor
Life of this patent
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OwnerRoger O. Menardinventor
Estimating the term…
A portable, lightweight and inexpensive emergency power pack to be hooked up to the lighting system of a vehicle trailer, such as a semi-trailer, camper, mobile home or the like, for the purpose of flashing all or some trailer lights on and off while the trailer is unhitched on the side of a road so as to warn passing motorists of its presence. The device includes a battery, an on-off switch, a flasher and an illuminating light. The case for supporting the battery and other components is made of a unitary, molded plastic piece, and includes a cylindrical housing on one side thereof that contains an adapter plug for connecting to a mating plug in the vehicle trailer. Auxiliary warning lights may also be strung from a special connector on the unit, while an alternate embodiment may be utilized in the shop to test the various electrical systems on the trailers.
An emergency power pack adapted to be connected to an unhitched trailer of a tractor-trailer of the type which has a plug on said tractor and a mating socket on said trailer to provide an electrical connection therebetween when hitched for controlling the lights on said trailer from a first source of power on said tractor, which comprises:
Dependencies are inferred from the claim text.