Chairs and seats – Bottom or back with means to alter contour – Providing support for lower back region
Patent
1996-06-06
1998-01-27
Brown, Peter R.
Chairs and seats
Bottom or back with means to alter contour
Providing support for lower back region
2972845, A47C 746
Patent
active
057115753
ABSTRACT:
An inflatable lumbar support system that includes a plurality of thermoplastic layers sealed together to form at least two laterally spaced bladders. A resiliently flexible face panel is disposed between the back of the user and the inflatable chambers. The panel is composed of form stable outer portions overlying the laterally spaced bladders and a medial portion therebetween of substantially greater yieldability than the outer portions of the panel. The inflatable lumbar support system is incorporated within a chair having a one-piece shell with a backrest that is cantilevered from the top of the backrest. The lumbar support system is carried by a mounting plate that includes a pair of mounting hooks that attach to and can slide vertically along the side edge of the cantilevered portion of the backrest. The lumbar support system can be slid vertically along the cantilevered backrest and can be inflated and deflated by a person setting in the chair.
REFERENCES:
patent: D295347 (1988-04-01), Chadwick et al.
patent: 3279849 (1966-10-01), Radke et al.
patent: 3652126 (1972-03-01), Folling
patent: 3974827 (1976-08-01), Bodeen
patent: 4506929 (1985-03-01), Josefek
patent: 4514010 (1985-04-01), Sabater Gonzales
patent: 4516568 (1985-05-01), Baxter et al.
patent: 4518200 (1985-05-01), Armstrong
patent: 4529247 (1985-07-01), Stumpf et al.
patent: 4555140 (1985-11-01), Nemoto
patent: 4615563 (1986-10-01), Kobayashi
patent: 4690456 (1987-09-01), Chiba et al.
patent: 4707027 (1987-11-01), Horvath et al.
patent: 4718724 (1988-01-01), Quinton et al.
patent: 4759543 (1988-07-01), Feldman
patent: 4789202 (1988-12-01), Alter
patent: 4807931 (1989-02-01), Ishida et al.
patent: 4957102 (1990-09-01), Tan et al.
patent: 4960304 (1990-10-01), Frantz
patent: 5022109 (1991-06-01), Pekar
patent: 5054854 (1991-10-01), Pruit
patent: 5076643 (1991-12-01), Colasanti et al.
patent: 5137329 (1992-08-01), Neale
patent: 5144708 (1992-09-01), Pekar
patent: 5171209 (1992-12-01), Gamba
patent: 5190348 (1993-03-01), Colasanti
patent: 5280997 (1994-01-01), Andres et al.
patent: 5314235 (1994-05-01), Johnson
patent: 5351710 (1994-10-01), Phillips
patent: 5372487 (1994-12-01), Pekar
English language Derwent Publication for German Patent A 3334864.
Hand R. Scott
Pekar Robert W.
Weber Jeffrey A.
Brown Peter R.
Herman Miller Inc.
LandOfFree
Office chair and adjustable lumbar support therefor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Office chair and adjustable lumbar support therefor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Office chair and adjustable lumbar support therefor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-337215