Beds – Mattress – Having confined gas
Reexamination Certificate
2002-07-11
2003-09-16
Luu, Teri Pham (Department: 3673)
Beds
Mattress
Having confined gas
C005S707000, C005S655300
Reexamination Certificate
active
06618884
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an inflatable mattress, more particularly to an inflatable mattress with integrated upper and lower mattress bodies.
2. Description of the Related Art
Referring to
FIGS. 1 and 2
, a conventional inflatable mattress
90
is shown to include a bottom wall
92
, a top wall
91
, and a plurality of uniformly spaced apart pull bands
93
interposed between and connected to the top and bottom walls
91
,
92
to define a plurality of air chambers
94
which are in fluid communication with one another. An air-injecting valve is provided for injecting air into the chambers
94
.
Referring to
FIG. 2
, due to the presence of a seam between each adjacent pair of the air chambers
94
, a plurality of depressions are formed on the top wall
91
of the inflatable mattress
90
. As such, when the user lies down on the top wall
91
, the inflatable mattress cannot provide satisfactory support for the user's body. In instances where two users share the same inflatable mattress, the inflatable mattress will create a rolling effect. That is, when one user tosses and turns at one end of the inflatable mattress, the other user at the other end will be jostled.
SUMMARY OF THE INVENTION
Therefore, the object of this invention is to provide an inflatable mattress with integrated upper and lower mattress bodies, which provides better comfort in comparison to the aforesaid conventional inflatable mattress.
Accordingly, an inflatable mattress according to the present invention includes an inflatable upper mattress body and an inflatable lower mattress body. The inflatable upper mattress body defines a plurality of elongated parallel upper chambers that extend in a first longitudinal direction, and that are in fluid communication with one another, and has a bottom wall that confines bottom sides of the upper chambers, that has a peripheral portion, and that is formed with a first hole which is disposed adjacent to the peripheral portion, which is in fluid communication with an adjacent one of the upper chambers, and which has a periphery. The inflatable lower mattress body is disposed below and is aligned with the upper mattress body, defines a plurality of elongated parallel lower chambers that extend in a second longitudinal direction, and that are in fluid communication with one another, and has a top wall that confronts the bottom wall of the upper mattress body, that confines top sides of the lower chambers, that has a peripheral portion, and that is formed with a second hole which is disposed adjacent to the peripheral portion of the top wall, which is in fluid communication with an adjacent one of the lower chambers, which is vertically registered with the first hole, and which has a periphery. Each of the lower chambers has a transverse cross-section greater than that of the upper chamber. The periphery of the second hole is integrally connected to the periphery of the first hole so as to permit adjoining of the first and second holes, thereby permitting fluid communication of the upper chambers with the lower chambers via the first and second holes.
REFERENCES:
patent: 2604641 (1952-07-01), Reed
patent: 5561873 (1996-10-01), Weedling
patent: 5598593 (1997-02-01), Wolfe
Conley Fredrick
Luu Teri Pham
Nixon & Vanderhye P.C.
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