Airbed

Details Airbed Airbed

2007-03-20

2007-03-20

Trettel, Michael (Department: 3673)

Beds

Mattress

Having confined gas

C005S731000

Reexamination Certificate

active

11020915

ABSTRACT:
This invention provides an improved bed. The bed comprises a top sheet, a bottom sheet connected with the top sheet, and at least one coil beam. The coil beam further comprises a first fastener attached to the top sheet, a second fastener attached to the bottom sheet, and a string connecting the first and second fasteners. In one embodiment, the first fastener further comprises a first attachment sheet with two first openings and a first bridge formed therebetween. The first attachment sheet is welded onto the top sheet. The string runs through the two first openings between the first bridge and the top sheet. In addition, the second fastener further comprises a second attachment sheet with two second openings and a second bridge formed therebetween. The second attachment sheet is welded onto the bottom sheet. The string runs through the two second openings between the second bridge and the bottom sheet.

REFERENCES:
patent: 622239 (1899-04-01), Lane
patent: 1970502 (1934-08-01), Hamza
patent: 2016054 (1935-10-01), Sentell
patent: 4328599 (1982-05-01), Mollura
patent: 4679264 (1987-07-01), Mollura
patent: 4826715 (1989-05-01), Lee
patent: 5606756 (1997-03-01), Price
patent: 6463610 (2002-10-01), Shulte et al.
patent: D490635 (2004-06-01), Boso et al.
patent: 6793469 (2004-09-01), Chung

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