Trailerable structure with retractable towing hardware

Details Trailerable structure with retractable towing hardware Trailerable structure with retractable towing hardware

1990-08-09

1992-08-11

Marmor, Charles A.

Land vehicles

Wheeled

Articulated vehicle

280 612, 280475, 280656, 2807631, B60G 902, B60D 0000

Patent

active

051372975

ABSTRACT:
A large flat exhibition platform of stair-step height (71/2 inches) and convertible to a highway trailer has jacking apparatus, wheels, wheel suspension apparatus and a trailer towing member retractably concealed therein and includes an energy source, hydraulic or pneumatic motor devices and motor controls, also concealed within the platform, to provide jacking to raise and lower the platform relative to a ground surface and to move the wheel suspension apparatus between roadable and retracted wheel positions without the need for any extra tools or equipment. Safety interlocks warn the operator or prevent trailering operation when the wheels are not fully extended to their roadable positions or when the towing member is not fully extended to its towing position. A fully sealed deep-cycle battery provides power for motor-driven hydraulic pumps for hydraulic motors. The platform frame has primary structural components made from large steel tubing which has sealed portions thereof forming reservoirs for compressed gas for operating the pneumatic motors.

REFERENCES:
patent: 2110944 (1938-03-01), Schultz
patent: 3669409 (1972-06-01), Eranosian
patent: 4230340 (1980-10-01), Wasservogel
patent: 4239258 (1980-12-01), Burris
patent: 4253677 (1981-03-01), Wissler
patent: 4595210 (1986-06-01), Groeing
patent: 4746142 (1988-05-01), Davis
patent: 4807894 (1989-02-01), Walker

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