Cushion assembly with aligned air chambers

Details Cushion assembly with aligned air chambers Cushion assembly with aligned air chambers

2000-09-06

2003-03-25

Nolan, Sandra M. (Department: 1772)

Stock material or miscellaneous articles

Sheet including cover or casing

Including elements cooperating to form cells

C036S029000, C428S076000, C428S137000, C428S178000, C428S212000

Reexamination Certificate

active

06537639

ABSTRACT:

BACKGROUND OF THE INVENTION
Common conventional air cushions are generally made of a single layer of material that is inflated with a preset pressure for producing a buffering and shock-absorbing effect. In practical use, they are not only inferior in stability but also have a short service life because a high pressure inflation of the cushion will cause harm to its structure.
SUMMARY OF THE INVENTION
The purpose of the present invention is to provide a buffer air cushion that includes an outer air cushion having an inner air cushion disposed therein.
The main feature of the invention resides in the outer air cushion having a first inner pressure and the inner air cushion having a second inner pressure that is higher than the first inner pressure of the outer air cushion, thus providing a better buffering and shock-absorbing effect than conventional air cushions.


REFERENCES:
patent: 4670995 (1987-06-01), Huang
patent: 5902660 (1999-05-01), Huang

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