US 4,047,798 AGranted

Emergency signalling device

OwnerJames M. Bennettinventor

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Abstract

This disclosure pertains to a signalling device which is magnetically temporarily secured to an exterior surface of a motor vehicle. When in use, two end elements are disposed in parallel spaced apart relationship by a plurality of interconnected linkage arms forming a series of parallelograms. When expanded, the apparatus forms a display area having a substantially rectangular shape bounded on two sides by the end elements. The display surfaces of the end elements and the linkage arms are adapted with a reflective material permitting the operator of an oncoming vehicle to readily discern the presence of a disabled vehicle. The linkage arms are collapsible, thereby permitting easy storage within the motor vehicle when not in use. Carrying and size adjusting handles and a locking mechanism for locking the device in a collapsed position are provided.

Claims1

Dependent claims

A compact emergency signalling device comprising a pair of parallelally disposed longitudinal end elements, magnetic securing mens for magnetically fastening said pair of said end elements to a magnetically susceptible surface, linkage means enabling said pair of said end elements to be spacedly maintained a variable distance apart from each other, handle means for manually positioning said pair of said end elements said variable distance apart from each other, light reflection means located on said linkage means for heightening the visibility of said pair of said end elements and said linkage means, wherein each of said pair of said end elements has an L-shaped cross-section, a pair of U-shaped longitudinal tracks, one of said pair of said tracks fixedly secured to one leg of said L-shaped cross-section of said each of said pair of said end elements, the other legs of said L-shaped cross-section of said each of said pair of said end elements directed inwardly towards each other, said one leg of said each of said pair of said end elements disposed in juxtaposed parallel relationship.

Dependencies are inferred from the claim text.