Fire escape – ladder – or scaffold – Convertible
Patent
1982-08-23
1984-08-07
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Convertible
182129, 280491R, 108129, B60D 100
Patent
active
044638264
ABSTRACT:
Combination airplane tow bar, platform and step stool structure for use in attending to small aircraft. The platform includes an upper deck member having depending side flanges inset from each side edge thereof with each flange extending beyond the end edge of the deck member and terminating in a rounded apertured end. Leg assemblies are pivoted to the ends of the flanges for movement between a position perpendicular to the deck member for use of the device as a seat, step stool, elevated platform or the like and a position extending longitudinally outwardly of the deck member for use of the device as an airplane tow bar. One of the leg assemblies includes a latch structure for connection with an aircraft to enable the aircraft to be towed. The latch structure may include a spring latch depending on the aircraft attachment. Both leg assemblies can be pivoted into overlying relation to the deck member for compact storage and when folded, the device forms an effective wheel chock for the aircraft.
REFERENCES:
patent: 476897 (1892-06-01), Ripp
patent: 1912947 (1933-06-01), Martin
patent: 2829705 (1958-04-01), Godshalk
patent: 3554318 (1971-01-01), Knight
patent: 3581843 (1971-06-01), Hadley
patent: 3829131 (1974-08-01), Moore
patent: 3895828 (1975-07-01), Bitantis
patent: 3976163 (1976-08-01), Watkinson
patent: 4046221 (1977-09-01), Endfield
patent: 4121788 (1978-10-01), McMahon
patent: 4269429 (1981-05-01), Eichstadt
Chin-Shue Alvin
Jacobson Harvey B.
Machado Reinaldo P.
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