Anti-tip system for a power wheelchair

Details Anti-tip system for a power wheelchair Anti-tip system for a power wheelchair

2011-04-26

2011-04-26

Culbreth, Eric (Department: 3616)

Land vehicles

Wheeled

Attachment

C180S907000, C180S908000

Reexamination Certificate

active

07931300

ABSTRACT:
An anti-tip system is provided for improving the stability of a powered vehicle, such as a powered wheelchair. The vehicle includes a drive-train assembly pivotally mounted to a main structural frame. A suspension system biases the drive-train assembly and its connected anti-tip wheel to a predetermined resting position. The drive-train assembly bi-directionally rotates about a pivot in response to torque applied to or acceleration forces on the vehicle. A linkage arrangement is provided and is characterized by a suspension arm pivotally mounting to the main structural frame about a pivot at one end thereof and an anti-tip wheel at the other end. The linkage may further include at least one link operable to transfer the bi-directional displacement of the drive-train assembly to the suspension arm. The link may include a bell crank member and/or may be resiliently compressible.

REFERENCES:
patent: 3104112 (1963-09-01), Crail
patent: 3520378 (1970-07-01), Slay
patent: 3827718 (1974-08-01), Curry
patent: 4000912 (1977-01-01), Donald et al.
patent: 4128137 (1978-12-01), Booth
patent: 4245847 (1981-01-01), Knott
patent: 4513832 (1985-04-01), Engman
patent: 4840394 (1989-06-01), Bickler
patent: 5435404 (1995-07-01), Garin, III
patent: 5564512 (1996-10-01), Scheulderman
patent: 5772237 (1998-06-01), Finch et al.
patent: 5848658 (1998-12-01), Pulver
patent: 5855387 (1999-01-01), Gill et al.
patent: 5964473 (1999-10-01), Degonda et al.
patent: 6047979 (2000-04-01), Kraft et al.
patent: 6070898 (2000-06-01), Dickie et al.
patent: 6129165 (2000-10-01), Schaffner et al.
patent: 6135222 (2000-10-01), Furukawa
patent: 6196343 (2001-03-01), Strautnieks
patent: 6220382 (2001-04-01), Kramer et al.
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: 6533306 (2003-03-01), Watkins
patent: 6543798 (2003-04-01), Schaffner et al.
patent: 6554086 (2003-04-01), Goertzen et al.
patent: 6705629 (2004-03-01), Post et al.
patent: 6752230 (2004-06-01), Huang
patent: 6796568 (2004-09-01), Martis et al.
patent: 6851711 (2005-02-01), Goertzen et al.
patent: 6923278 (2005-08-01), Mulhern et al.
patent: 7021641 (2006-04-01), Wu
patent: 7040429 (2006-05-01), Molnar
patent: 7038195 (2006-08-01), Geortzen et al.
patent: 7104346 (2006-09-01), Schaffner
patent: 7344155 (2008-03-01), Mulhern et al.
patent: 7726689 (2010-06-01), Mulhern et al.
patent: 2002/0093172 (2002-07-01), Watkins
patent: 2003/0075365 (2003-04-01), Fought
patent: 2004/0004342 (2004-01-01), Mulhern et al.
patent: 2004/0035627 (2004-02-01), Richey et al.
patent: 2004/0046358 (2004-03-01), White et al.
patent: 2004/0060748 (2004-04-01), Molnar
patent: 2004/0168839 (2004-09-01), Wu
patent: 2004/0251649 (2004-12-01), Wu
patent: 2004/0262859 (2004-12-01), Turturiello et al.
patent: 2005/0000742 (2005-01-01), Mulhern et al.
patent: 2005/0077714 (2005-04-01), Mulhern et al.
patent: 2005/0077715 (2005-04-01), Mulhern et al.
patent: 2005/0127631 (2005-06-01), Schaffer
patent: 2005/0206149 (2005-09-01), Mulhern et al.
patent: 2006/0022445 (2006-02-01), Mulhern et al.
patent: 2006/0076747 (2006-04-01), Pauls et al.
patent: 2006/0076748 (2006-04-01), Pauls et al.
patent: 2006/0082117 (2006-04-01), Turturiello et al.
patent: 2006/0086554 (2006-04-01), Jackson et al.
patent: 2007/0181353 (2007-08-01), Puskar-Pasewicz et al.
patent: 1 522 295 (2005-04-01), None
patent: 2215054 (1979-03-01), None
patent: 2399822 (1979-03-01), None
patent: 2 051 702 (1980-05-01), None
patent: 2 192 595 (1986-07-01), None
patent: 2001104391 (2001-04-01), None
patent: WO87/06205 (1978-04-01), None
patent: WO90/06097 (1989-11-01), None
patent: WO 00/08910 (2000-09-01), None
patent: WO 00/54718 (2000-09-01), None
Photographs-Sunrise Medical G-424 (Sold from Oct. 1999).
Presentation-NSM Symposium (Jul. 2004).
EP Search Report EP 1 522 295 A3.

Affiliated with

Also associated with

Rating

Anti-tip system for a power 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 Anti-tip system for a power wheelchair, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anti-tip system for a power wheelchair will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2668559