Fire escape – ladder – or scaffold – Having transpositioning base and erecting means
Patent
1992-06-01
1994-03-22
Chotkowski, Karen J.
Fire escape, ladder, or scaffold
Having transpositioning base and erecting means
182127, 182116, E06C 500
Patent
active
052955559
ABSTRACT:
A wheeled trailer chassis is provided including a flat load bed and a rear end pivotally mounted loading ramp swingable between an operative rearwardly downwardly inclined position and an upright position closing the rear of the load bed. An ATV also is provided behind which the trailer maybe trailed and the ATV is loadable over the loading ramp onto the rear portion of the load bed of the trailer. The forward portion of the trailer load bed stationarily supports a slightly rearwardly inclined upright from whose upper end the lower end of a lift boom is pivotally supported, the upper end of the lift boom having an occupant receiving receptacle pivotally supported therefrom. A parallelogram link is connected between the upright and the receptacle and hydraulic cylinders are operatively connected between the lift boom and the upright for raising and lowering the lift boom. The occupant receiving receptacle carried by the free end of the lift boom is swingable rearwardly and downwardly behind the ramp when the latter is in its upright position closing the rear of the load bed.
REFERENCES:
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patent: 4169511 (1979-10-01), Brown
patent: 4614252 (1986-09-01), Tarner
patent: 4787477 (1988-11-01), Dolan
patent: 4800986 (1989-01-01), Hayes
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