Material or article handling – Elevator or hoist and loading or unloading means therefor
Reexamination Certificate
2005-05-03
2005-05-03
Lillis, Eileen D. (Department: 3652)
Material or article handling
Elevator or hoist and loading or unloading means therefor
C414S812000
Reexamination Certificate
active
06887029
ABSTRACT:
A three-wheeled, electrically powered cart is provided for transporting items typically transported using a hand truck. The cart comprises a body section housing rechargeable batteries and a steerable load section that is hinged to the body section. An electric motor powers the front wheel for propelling the cart. The load section pivots about a generally vertical axis and has a movable load rack that pivots about a horizontal axis. A platform is located between the rear wheels for supporting a user during operation. In one embodiment, the width of the cart is approximately 24 inches, allowing the cart to pass through a typical doorway.
REFERENCES:
patent: 3485314 (1969-12-01), Herr
patent: 4716980 (1988-01-01), Butler
patent: 4919233 (1990-04-01), Larsen et al.
patent: 5478196 (1995-12-01), Avitan et al.
patent: 5547035 (1996-08-01), Berry
patent: 2356624 (2001-05-01), None
Bracewell & Patterson L.L.P.
Fox Charles A.
Lillis Eileen D.
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