Land vehicles – Wheeled – Nesting vehicles
Patent
1987-10-22
1989-05-02
Marmor, Charles A.
Land vehicles
Wheeled
Nesting vehicles
280 4716, 280 33996, B62B 300, B62D 3900
Patent
active
048261866
ABSTRACT:
The hand trolley has a bottom frame equipped with a front pair of swiveling wheels, a rear pair of swiveling wheels and one or two non-swiveling central wheels located at a lower level than the plane defined by the front and rear pairs of wheels. The bottom frame of the trolley is constituted by two lateral bars and two central bars placed respectively on opposite sides of the longitudinal plane of symmetry of the trolley, the rear ends of the central bars being closer to the plane of symmetry than the front ends and the bottom frame being thus M-shaped when viewed from the rear. The central wheels are placed beneath the central bars while the front wheels are placed at the same location as the common front ends of the lateral bars and of the central bars, the rear wheels being placed at the same location as the rear ends of the lateral bars.
REFERENCES:
patent: 2216972 (1940-10-01), Gibson et al.
patent: 2590285 (1952-03-01), Wiltshire
patent: 2903269 (1959-09-01), Hennion
patent: 2992010 (1961-07-01), Sides
patent: 3337227 (1967-08-01), Castaldo
patent: 4039224 (1977-08-01), Bauer et al.
patent: 4281853 (1981-08-01), LeVeux
patent: 4394036 (1983-07-01), Hildebrandt
patent: 4456283 (1984-06-01), Michael et al.
patent: 4580800 (1986-04-01), Upton et al.
patent: 4597588 (1986-07-01), Kawai
Johnson Brian L.
Marmor Charles A.
Ostosvaunuhuolto Oy
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