Chairs and seats – Bottom or back – Cushioned
Patent
1996-04-29
1998-08-04
Nelson, Jr., Milton
Chairs and seats
Bottom or back
Cushioned
29745259, A47C 702
Patent
active
057883327
ABSTRACT:
A seat unit is provided comprising a base structure and at least one cushion layer comprised of a random mesh of plastic filament between the base structure and the cover layer. The cushion layer not only provides adequate firmness, but has adequate air circulation therethrough. The perimeter of the cushion may be molded in with a plastic base structure, and there may be multiple cushion layers where each layer has a different density. The multiple layers of cushioning where each layer has a different density further allow the seat to have both a specifically desired firmness and air circulation therethrough. Also provided is a method for molding in the cushioning with the base structure as well as molding in a spring layer and a cover layer.
REFERENCES:
patent: 3628830 (1971-12-01), Mitjans et al.
patent: 4743323 (1988-05-01), Hettinga
patent: 4837881 (1989-06-01), Kondo et al.
patent: 5000515 (1991-03-01), Deview
patent: 5067772 (1991-11-01), Koa
patent: 5456873 (1995-10-01), Nomizo
patent: 5482665 (1996-01-01), Gill
patent: 5542747 (1996-08-01), Burchi
Gilchrist Michael C.
Jr. Milton Nelson
Laurenzo Brian J.
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