Chairs and seats – Bottom or back – Contoured bottom
Reexamination Certificate
2007-09-28
2009-11-10
Dunn, David (Department: 3636)
Chairs and seats
Bottom or back
Contoured bottom
C297S452260, C297S452270, C297SDIG010
Reexamination Certificate
active
07614704
ABSTRACT:
A wheelchair seat cushion has multi-density regions. The cushion assembly may have a region having a stiffer, higher density proximate the front of the seat cushion assembly beneath the user's thighs to assist the user in exiting the wheelchair. Alternatively, or additionally, an insert member having multi-density regions may be received in a recess in a base member. The insert members may be oriented in different orientations to position a softer, less dense region at different locations, to situate the softer, less dense region of the insert beneath a particular user's ischial tuberosities and/or coccyx.
REFERENCES:
patent: 4132228 (1979-01-01), Green
patent: 4522447 (1985-06-01), Snyder et al.
patent: 4571763 (1986-02-01), Suzuyama et al.
patent: 4588229 (1986-05-01), Jay
patent: 4660238 (1987-04-01), Jay
patent: 4726624 (1988-02-01), Jay
patent: 4753480 (1988-06-01), Morell
patent: 4755411 (1988-07-01), Wing et al.
patent: 4761843 (1988-08-01), Jay
patent: 4842330 (1989-06-01), Jay
patent: 5018790 (1991-05-01), Jay
patent: 5062677 (1991-11-01), Jay
patent: 5074620 (1991-12-01), Jay
patent: 5149173 (1992-09-01), Jay
patent: 5211446 (1993-05-01), Jay
patent: 5294181 (1994-03-01), Rose et al.
patent: 5333921 (1994-08-01), Dinsmoor, III
patent: 5352023 (1994-10-01), Jay
patent: 5362543 (1994-11-01), Nickerson
patent: 5369829 (1994-12-01), Jay
patent: 5378045 (1995-01-01), Siekman
patent: 5390384 (1995-02-01), Dinsmoor et al.
patent: 5395162 (1995-03-01), Jay
patent: 5407248 (1995-04-01), Jay
patent: 5414884 (1995-05-01), Mackenzie
patent: 5442823 (1995-08-01), Siekman
patent: 5457833 (1995-10-01), Jay
patent: 5490299 (1996-02-01), Dinsmoor, III
patent: 5522106 (1996-06-01), Harrison et al.
patent: 5524971 (1996-06-01), Jay
patent: 5592707 (1997-01-01), Dinsmoor, III
patent: 5593211 (1997-01-01), Jay
patent: 5617595 (1997-04-01), Landi
patent: 5647637 (1997-07-01), Jay
patent: 5671977 (1997-09-01), Jay
patent: 5681092 (1997-10-01), Hanson
patent: 5687436 (1997-11-01), Denton
patent: 5701621 (1997-12-01), Landi
patent: 5836654 (1998-11-01), DeBellis
patent: 5857749 (1999-01-01), DeBellis
patent: 5950263 (1999-09-01), Hanson
patent: 6082824 (2000-07-01), Chow
patent: 6142573 (2000-11-01), Harding
patent: 6241320 (2001-06-01), Chew
patent: 6347406 (2002-02-01), Jones et al.
patent: 6625830 (2003-09-01), Lampel
patent: 6739008 (2004-05-01), Kindrick
patent: 6918146 (2005-07-01), England
patent: 7220376 (2007-05-01), Hetzel et al.
patent: 7445292 (2008-11-01), Moule
patent: 2006/0170274 (2006-08-01), Moule
patent: 2324260 (1977-04-01), None
patent: 2687294 (1993-08-01), None
patent: 02588513 (2002-08-01), None
Christofferson James L.
Whelan Thomas J.
Dunn David
Garrett Erika
MacMillan Sobanski & Todd LLC
Sunrise Medical HHG Inc.
LandOfFree
Wheelchair seat cushion 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 seat cushion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Wheelchair seat cushion will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4137611