Land vehicles – Wheeled – Extensible
Patent
1994-08-01
1995-11-21
Butler, Douglas C.
Land vehicles
Wheeled
Extensible
280 4727, 414490, B62B 102
Patent
active
054680107
ABSTRACT:
A hand truck apparatus includes a frame assembly, and a wheel assembly is carried by the frame assembly at the first end of the frame assembly. A platform assembly is connected to the first end of the frame assembly. A handle assembly is connected to the frame assembly at the second end of the frame assembly, and a plurality of roller assemblies are connected transversely between the lateral frame members. An extension assembly has a first end adapted to be connected to the second end of the frame assembly. The extension assembly includes a pair of lateral extension frame members spaced apart from each other by and connected to a pair of transverse extension frame members located at respective ends of the extension assembly. The extension assembly also includes a plurality of roller assemblies connected transversely between the lateral extension frame members. The platform assembly includes a first platform portion which extends forward of the frame assembly and includes a second platform portion which extends rearward of the frame assembly. The second platform portion includes receivers adapted for receiving a portion of the extension assembly for supporting the extension assembly. The frame assembly includes a retainer bar extending rearward from the lateral frame members. The retainer bar is adapted to retain the extension assembly adjacent to the lateral frame members when a bottom portion of the extension assembly is received in the receivers.
REFERENCES:
patent: 783241 (1905-02-01), Bisset
patent: 1374379 (1921-04-01), Klein
patent: 1425727 (1922-08-01), Wallstrom
patent: 2360799 (1944-10-01), Slingsby
patent: 2534868 (1950-12-01), Johnston
patent: 2707585 (1955-05-01), Hoey
patent: 2806708 (1957-09-01), Finstad
patent: 2820643 (1958-01-01), Cohn
patent: 3022090 (1962-02-01), Olney
patent: 3092200 (1963-06-01), Chambers
patent: 3112042 (1963-11-01), Leshner
patent: 3113654 (1963-12-01), Kirsch
patent: 3360145 (1967-12-01), Bloxson et al.
patent: 3476199 (1969-11-01), Kahn
patent: 3782569 (1974-01-01), Montgomery
patent: 3907322 (1975-09-01), Kiryu
patent: 3974924 (1976-08-01), Ullman, Jr.
patent: 4217967 (1980-08-01), Kaye
patent: 4341393 (1982-07-01), Gordon et al.
patent: 4681334 (1987-07-01), O'Brien
patent: 4726602 (1988-02-01), Sanders et al.
patent: 4776603 (1988-10-01), Watts
patent: 4921270 (1990-05-01), Schoberg
patent: 5037265 (1991-08-01), O'Brien
patent: 5158032 (1992-10-01), Pitt
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