Motor vehicles – Steering by driving – Independently operable drive motors
Reexamination Certificate
2008-07-15
2008-07-15
Morris, Lesley D. (Department: 3611)
Motor vehicles
Steering by driving
Independently operable drive motors
C180S009480, C180S065100, C180S907000, C180S065510, C180S242000, C280S250100, C280S304000
Reexamination Certificate
active
11137607
ABSTRACT:
A self-propelled wheelchair with independently driven wheels and dual support frames connected in an articulating relationship. A front frame supports a seat and a rearward extended pivot connector. A pair of front wheels and left and right front drive units are connected to the front frame. A rear frame includes a forwardly extended pivot joint, a rear support platform having a power source thereon, and a pair of rear wheels and left and right rear drive units connected thereto. An articulating junction is formed by the front frame pivot connector attached to the rear frame pivot joint and providing articulation between the front frame and rear frame. A manually operable control unit includes computer circuitry in connection with each wheel drive unit, wherein manipulation of the control unit actuates each drive unit for control of rotational speed and direction of rotation for each wheel.
REFERENCES:
patent: 4089384 (1978-05-01), Ehrenberg
patent: 4271918 (1981-06-01), Molby
patent: 4633962 (1987-01-01), Cox et al.
patent: 4805712 (1989-02-01), Singleton
patent: 5064209 (1991-11-01), Kurschat
patent: 5096008 (1992-03-01), Mankowski
patent: 5482125 (1996-01-01), Pagett
patent: 6283237 (2001-09-01), Muller
patent: 2001/0018991 (2001-09-01), Venturi et al.
patent: 2006/0213705 (2006-09-01), Molnar
Fontecchio Bruce E.
Mellies Brian
Arce-Diaz Marlon
Morris Lesley D.
Pitts & Brittian P.C.
LandOfFree
Articulating quad-drive wheelchair does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Articulating quad-drive wheelchair, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Articulating quad-drive wheelchair will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3936414