Land vehicles – Wheeled – Attachment
Reexamination Certificate
2007-05-22
2007-05-22
Ellis, Christopher P. (Department: 3618)
Land vehicles
Wheeled
Attachment
C280S250100, C280S304100, C180S907000, C180S065510, C297SDIG010, C297SDIG010
Reexamination Certificate
active
10613669
ABSTRACT:
A curb-climbing rear wheel drive power wheelchair is disclosed having a pair of drive wheels, at least one ground-engaging idler wheel connected to the frame forward of the drive wheels and at least one ground-contacting anti-tip caster wheel mounted to the wheelchair aft of the drive wheels. The drive wheels and anti-tip caster wheels are mounted on common suspension arms, pivoted to the frame of the wheelchair behind the drive wheels and resiliently suspended, so that the anti-tip caster wheels move up and down in response to movements of the drive wheel suspension.
REFERENCES:
patent: 3848883 (1974-11-01), Breacain
patent: RE28259 (1974-12-01), Henschen
patent: 4898256 (1990-02-01), Lehner
patent: 5137295 (1992-08-01), Peek
patent: 5145020 (1992-09-01), Quintile et al.
patent: 5435404 (1995-07-01), Garin, III
patent: 5531284 (1996-07-01), Okamoto
patent: 5540297 (1996-07-01), Meier
patent: 5564512 (1996-10-01), Scheulderman
patent: 5575348 (1996-11-01), Goertzen et al.
patent: 5772237 (1998-06-01), Finch et al.
patent: 5848658 (1998-12-01), Pulver
patent: 5899475 (1999-05-01), Verhaeg et al.
patent: 5904214 (1999-05-01), Lin
patent: 5944131 (1999-08-01), Schaffner et al.
patent: 5957474 (1999-09-01), Mundy et al.
patent: 5964473 (1999-10-01), Degonda et al.
patent: 6070898 (2000-06-01), Dickie et al.
patent: 6129165 (2000-10-01), Schaffner et al.
patent: 6131679 (2000-10-01), Pulver et al.
patent: 6135222 (2000-10-01), Furukawa
patent: 6176335 (2001-01-01), Schaffner et al.
patent: 6196343 (2001-03-01), Strautnieks
patent: 6199647 (2001-03-01), Schaffner et al.
patent: 6217114 (2001-04-01), Degonda
patent: 6234507 (2001-05-01), Dickie et al.
patent: 6341657 (2002-01-01), Hopely et al.
patent: 6357793 (2002-03-01), Dickie et al.
patent: 6460641 (2002-10-01), Kral
patent: 6494474 (2002-12-01), Kramer, Jr.
patent: 6530598 (2003-03-01), Kirby
patent: 6533306 (2003-03-01), Watkins
patent: 6554086 (2003-04-01), Goertzen et al.
patent: 2004/0035627 (2004-02-01), Richey, II et al.
patent: 2004/0040769 (2004-03-01), Richey, II et al.
patent: 2399822 (1979-03-01), None
patent: 57-186589 (1982-11-01), None
patent: WO 03/103366 (2003-12-01), None
Alder Kip D.
Martis Charles J.
Mulhern James P.
White, Jr. Gerald J.
Coolman Vaughn
DLA Piper (US) LLP
Ellis Christopher P.
Pride Mobility Products Corporation
LandOfFree
Rear wheel drive power wheelchair with ground-contacting... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rear wheel drive power wheelchair with ground-contacting..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rear wheel drive power wheelchair with ground-contacting... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3812468