Land vehicles – Wheeled – Tiltable vehicles – stabilized by attendant or article
Reexamination Certificate
2005-08-25
2008-12-16
Ellis, Christopher (Department: 3618)
Land vehicles
Wheeled
Tiltable vehicles, stabilized by attendant or article
C280S047131, C280S047180, C280S646000, C280S652000
Reexamination Certificate
active
07464947
ABSTRACT:
The hand truck or dolly of the present invention is capable of multi-directional movement and provides an operator with complete control of movement and directional choice for the hand truck without having to remove his hands from a handgrip location to achieve mechanical adjustments of the wheels. Rather, an operator may adjust a wheel index position on-the-fly by means of a trigger assembly to rotate a wheel assembly about a vertical axis of rotation within a range of motion of approximately 100 degrees. The two, independent wheel assemblies of the hand truck of the present invention achieve multi-directional movement through positioning of the wheels in a standard index position allowing for forward and backward movement, a lateral index position allowing for lateral, or side to side, movement, or a rotational index position allowing for rotational movement, such as for cornering and circular movement.
REFERENCES:
patent: 2235044 (1941-03-01), Ronning
patent: 2800336 (1957-07-01), Major et al.
patent: 2884257 (1959-04-01), Menne
patent: 3166339 (1965-01-01), Earley
patent: 3288481 (1966-11-01), Meyers
patent: 3436092 (1969-04-01), Werner
patent: 3659867 (1972-05-01), Curry
patent: 3666285 (1972-05-01), Fertig
patent: 3729209 (1973-04-01), Litz
patent: 4003584 (1977-01-01), Zelli
patent: 4460189 (1984-07-01), Goff
patent: 4854804 (1989-08-01), Mayle
patent: 5263727 (1993-11-01), Libit et al.
patent: 5624199 (1997-04-01), Cheng
patent: 6039332 (2000-03-01), Austin
patent: 6186523 (2001-02-01), Aielli
patent: 6367822 (2002-04-01), Hutchins
patent: 6422152 (2002-07-01), Rowe
patent: 6425724 (2002-07-01), Williamson
patent: 6450514 (2002-09-01), Ronca
patent: 6663120 (2003-12-01), Fagerqvist
patent: 6874799 (2005-04-01), Robberson et al.
Brenda L. Speer, LLC
Ellis Christopher
Speer Brenda L.
Walters John D
LandOfFree
Hand truck capable of multi-directional movement 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 capable of multi-directional movement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hand truck capable of multi-directional movement will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4023087