Stackable chair with lumbar support

Details Stackable chair with lumbar support Stackable chair with lumbar support

1998-06-05

1999-12-07

Nelson, Jr., Milton

Chairs and seats

Bottom or back

Directly connected bottom and back

2974482, 2972844, 297239, A47C 702

Patent

active

059970944

ABSTRACT:
An ergonomic chair having a shell that defines a seat and a back. The shell includes a lower back support that extends upwardly from the rear of its seat to about the middle of the back of the chair. An upper back support also extends upwardly from the rear of its seat. The upper and lower back supports can be resiliently flexed independently of each other to respond to movement of the user's back against the back. The shell is mounted to a base which enables multiple identical chairs to be telescopically stacked in a space-saving configuration.

REFERENCES:
patent: 3724897 (1973-04-01), Faiks et al.
patent: 4418958 (1983-12-01), Watkin
patent: 4529247 (1985-07-01), Stumpf et al.
patent: 4648653 (1987-03-01), Rowland
patent: 5064247 (1991-11-01), Clark et al.
patent: 5123702 (1992-06-01), Caruso
patent: 5407247 (1995-04-01), Forcier et al.
patent: 5577811 (1996-11-01), Ogg

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