Land vehicles – Wheeled – Tiltable vehicles – stabilized by attendant or article
Patent
1987-09-24
1988-12-27
Mitchell, David M.
Land vehicles
Wheeled
Tiltable vehicles, stabilized by attendant or article
280472, 280 4734, 280 791A, D34 12, B62B 302
Patent
active
047936240
ABSTRACT:
The cart of the present invention is used to transport planar materials such as plywood and drywall through a person size doorway. The transported material is in an upright position supported by a removable vertical side support on a planar elongated frame. The planar elongated frame is larger in the center and tapers inwardly at each end to about half its central width. The central portion of the cart has two large wheels on a transverse axle while the tapered ends each have central casters. The removable vertical side support has three receivers in the upper surface of the planar elongated frame. One of each of the three members of the vertical side support is received in each of the middle and tapered end sections, respectively. The three members meet and form an arched shape with an off-set central member.
REFERENCES:
patent: 2070095 (1937-02-01), Shepard, Jr. et al.
patent: 3003788 (1961-10-01), Grymer
patent: 3137250 (1969-12-01), Hutchison
patent: 3841651 (1974-10-01), Bigney
patent: 4398768 (1983-08-01), Parks et al.
patent: 4488733 (1984-12-01), Hellsten
Camby Richard
Mattern Jr. Roy E.
Mitchell David M.
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