Land vehicles – Wheeled – Convertible
Patent
1992-12-08
1995-07-18
Culbreth, Eric D.
Land vehicles
Wheeled
Convertible
280648, 280651, 297118, 297129, B62B 302
Patent
active
054334594
ABSTRACT:
This invention relates to a multi-purpose carriage and in particular to one including an upper frame provided with two upper supports each having a toothed member at the lower end, two transverse rods mounted between the two upper supports, each of the upper supports having a fixing block, a slider and a guiding rack and being provided with a telescopic rod, each slider having a positioning device for mounting on the guiding rack, a head rest rod pivotally connected with the upper end of the upper supports and having an adjustable rest, a lower frame provided with two lower supports each having at the upper end a toothed member engaged with the toothed member of the upper frame, and a compound rack engaged with the lower supports of the lower frame and composed of two telescopic rods each connected with a L-shaped rod, the L-shaped rod being provided with a plurality of wheel assemblies, whereby the carriage may be used as a seat, a wheeled chair, a bed, and a baby carriage.
REFERENCES:
patent: 2957700 (1960-10-01), Beaurline
patent: 3137511 (1964-06-01), Weil et al.
patent: 4505495 (1985-03-01), Foss et al.
patent: 4997200 (1991-03-01), Earls
patent: 5050899 (1991-09-01), Stensby
patent: 5213360 (1993-05-01), Lin
Culbreth Eric D.
English Peter C.
Lei Alfred
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