Hand truck

Details Hand truck Hand truck

2006-06-15

2009-02-10

Restifo, Jeffrey J (Department: 3618)

Land vehicles

Wheeled

Tiltable vehicles, stabilized by attendant or article

C280S047230, C280S047210

Reexamination Certificate

active

07487976

ABSTRACT:
A hand truck including a body, a load supporting platform, an axle, and a wheel assembly having a pair of wheels. Each wheel has an inner race that is freely rotatable within an outer ground-engaging portion via bearings disposed there between. Each wheel also includes at least one guide member that is mounted to the inner race so that rotation of the guide member rotates the inner race. A slide member is secured to the guide member so that the slide member is movable along the guide member. The axle is attached to the slide member and to the frame so that the body and the guide member are in a fixed parallel relationship. Accordingly, if the body is inclined, the guide member is likewise inclined to serve as a ramp. Due to this structure, a user can easily tip the hand truck, traverse obstacles, and stabilize the hand truck.

REFERENCES:
patent: 1192790 (1916-07-01), Knapp
patent: 1201957 (1916-10-01), Hall
patent: 1341171 (1920-05-01), Hall
patent: 1609612 (1926-12-01), Eskeland
patent: 3462171 (1969-08-01), Mitty et al.
patent: 3963252 (1976-06-01), Carlson
patent: 4248034 (1981-02-01), Jackson et al.
patent: 4457526 (1984-07-01), Persson
patent: 4762333 (1988-08-01), Mortenson
patent: 4991698 (1991-02-01), Hanson
patent: 5042827 (1991-08-01), Mortenson
patent: 5071196 (1991-12-01), Sbarro
patent: 5160153 (1992-11-01), Zan
patent: 5249847 (1993-10-01), Lee
patent: 5393078 (1995-02-01), Bourdeau
patent: 5398949 (1995-03-01), Tarng
patent: 5464234 (1995-11-01), Ferguson
patent: 5536025 (1996-07-01), Landay
patent: 5951027 (1999-09-01), Oyen et al.
patent: 6012727 (2000-01-01), Chang
patent: 6217038 (2001-04-01), Moe
patent: 6273438 (2001-08-01), Prapavat
patent: 6416063 (2002-07-01), Stillinger et al.
patent: 6874795 (2005-04-01), Sung
patent: 7168712 (2007-01-01), Celli

Affiliated with

Also associated with

Rating

Hand truck does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Hand truck, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hand truck will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4069055