Motor vehicles – Power – Electric
Reexamination Certificate
2005-08-09
2005-08-09
Ellis, Christopher P. (Department: 3618)
Motor vehicles
Power
Electric
C180S907000, C297SDIG004
Reexamination Certificate
active
06926106
ABSTRACT:
A wheelchair having a speed and direction control touchpad. The touchpad comprises two separated semi-conductive film layers, one measuring an X coordinate and one measuring a Y coordinate. When pressure is applied to the layers bringing them into contact with each other, an X, Y coordinate location is produced and the wheelchair is moved in a direction and speed analagous to the location of the pressure applied to the touchpad. A change in location of the pressure will result in a corresponding change in direction and speed. The touchpad also has a neutral or no movement activation point.
REFERENCES:
patent: 3732389 (1973-05-01), Kaelin et al.
patent: 3814199 (1974-06-01), Jones
patent: RE28365 (1975-03-01), Braue
patent: 3895288 (1975-07-01), Lampen et al.
patent: 3911215 (1975-10-01), Hurst et al.
patent: 3916327 (1975-10-01), Lamped et al.
patent: 3968467 (1976-07-01), Lampen et al.
patent: 4293734 (1981-10-01), Pepper, Jr.
patent: 4323829 (1982-04-01), Witney et al.
patent: 4444998 (1984-04-01), House
patent: 4475235 (1984-10-01), Graham
patent: 4493219 (1985-01-01), Sharp et al.
patent: 4494105 (1985-01-01), House
patent: 4523769 (1985-06-01), Glaser et al.
patent: 4529959 (1985-07-01), Ito et al.
patent: 4564079 (1986-01-01), Moore et al.
patent: 4677417 (1987-06-01), Amagishi
patent: 4707570 (1987-11-01), Ide et al.
patent: 4983786 (1991-01-01), Stevens et al.
patent: 4990900 (1991-02-01), Kikuchi
patent: 5181030 (1993-01-01), Itaya et al.
patent: 5199520 (1993-04-01), Chen
patent: 5542690 (1996-08-01), Kozicki
patent: 5550339 (1996-08-01), Haugh
patent: 5648708 (1997-07-01), Littlejohn
patent: 5778996 (1998-07-01), Prior et al.
patent: 5945929 (1999-08-01), Westra
patent: 6104317 (2000-08-01), Panagrossi
patent: 6215478 (2001-04-01), Yeh et al.
patent: 6414671 (2002-07-01), Gillespie et al.
patent: 6424338 (2002-07-01), Anderson
patent: 6529122 (2003-03-01), Magnussen et al.
patent: 1017823 (1977-09-01), None
patent: 135835 (1985-04-01), None
patent: 235517 (1987-09-01), None
patent: 1505272 (1978-03-01), None
patent: 1230055 (1989-09-01), None
patent: 03241623 (1991-10-01), None
patent: 7908078 (1981-07-01), None
Jaenke Bruce A.
Richey, II Joseph B.
Calfee Halter & Griswold LLP
Campbell Kelly E
Ellis Christopher P.
Invacare Corporation
LandOfFree
Wheelchair having speed and direction control touchpad does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Wheelchair having speed and direction control touchpad, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wheelchair having speed and direction control touchpad will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3456898