Zoning of inflatable bladders

Details Zoning of inflatable bladders Zoning of inflatable bladders

2005-06-21

2005-06-21

Shackelford, Heather (Department: 3673)

Beds

Mattress

Having confined gas

C005S710000, C005S935000

Reexamination Certificate

active

06907633

ABSTRACT:
The present invention is directed to diminish the material's creep problem found in inflatable bladders. This is accomplished by positioning an anti-creep zone within a bladder. The anti-creep zone is separated from the remainder of the bladder by a fluid barrier. The fluid barrier can have various embodiments that prevent and/or allow predetermined amounts of fluid into the anti-creep zone.

REFERENCES:
patent: 3705429 (1972-12-01), Nail
patent: 4882800 (1989-11-01), Schueler
patent: 5412822 (1995-05-01), Kelly
patent: 5901393 (1999-05-01), Pepe et al.
patent: 6079070 (2000-06-01), Flick
patent: 6253401 (2001-07-01), Boyd
patent: 2707874 (1995-01-01), None
patent: WO 93/24088 (1993-12-01), None
patent: WO 02/065878 (2002-08-01), None
European search report for European patent application that corresponds to above application—2 pages—prepared Sep. 30, 2003.

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