Electrical wheelchair with an electrical seat-rotating device

Details Electrical wheelchair with an electrical seat-rotating device Electrical wheelchair with an electrical seat-rotating device

2006-08-01

2006-08-01

Ellis, Christopher P. (Department: 3618)

Motor vehicles

Power

Electric

C180S330000, C180S907000

Reexamination Certificate

active

07083019

ABSTRACT:
An electrical wheelchair includes a vertical rotating shaft connected fixedly to a seat member and journalled on a frame of a chair body, and a worm unit for transferring rotation of a motor shaft to the rotating shaft. A wheel-controlling switch is disposed on the seat member, and is operable to rotate a driving wheel unit. A rotation-controlling switch is also disposed on the seat member, and is operable to rotate the rotating shaft and the seat member by any desired angle smaller than and equal to 360°. When the seat member rotates from a frontward position by 180°, the rotational direction of the driving wheel unit is reversed under automatic control. As such, forward and rearward movement of the wheelchair can be conducted with ease.

REFERENCES:
patent: 3964713 (1976-06-01), Joslyn et al.
patent: 4951766 (1990-08-01), Basedow et al.
patent: 5732788 (1998-03-01), Brown
patent: 6290011 (2001-09-01), Langaker et al.
patent: 6684969 (2004-02-01), Flowers et al.
patent: 6702049 (2004-03-01), Cheng
patent: 6938923 (2005-09-01), Mulhern et al.

Affiliated with

Also associated with

Rating

Electrical wheelchair with an electrical seat-rotating device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrical wheelchair with an electrical seat-rotating device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrical wheelchair with an electrical seat-rotating device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3698118