Amusement devices: toys – Inflatable – Having check valve
Reexamination Certificate
1999-05-05
2001-01-23
Ackun, Jacob K. (Department: 3712)
Amusement devices: toys
Inflatable
Having check valve
C446S220000
Reexamination Certificate
active
06176758
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to an inflatable bag, and more particularly to such an inflatable bag which has a collapsible air inlet device, which is compressed by the pressure of the inside air inside the inflatable bag to close the air passage automatically after the inflatable bag has been inflated, and a blow pipe fastened to the collapsible air inlet device through which air is blown through the air inlet device into the inside of the inflatable bag.
FIG. 4
shows an inflatable bag
4
having an air inlet device
41
fastened to a narrow, elongated neck thereof on the inside by a heat sealing apparatus. When inflating the inflatable bag
4
, the nozzle tube of an air cylinder is inserted into the air inlet device
41
, and then compressed air is released from the air cylinder into the inflatable bag
4
, causing the inflatable bag
4
to be inflated. After the inflatable bag
4
has been inflated, the elongated neck
41
is fastened to a support member
6
at one end of a stick
5
to close the air passage of the air inlet device. The procedure of fastening the elongated neck
41
of the inflatable bag
4
to the support member
6
is complicated. Further, because the end of the elongated neck
41
is disposed outside the support member
6
, it destroys the sense of beauty of the inflatable bag
4
.
SUMMARY OF THE INVENTION
The present invention provides an inflatable bag which eliminates the aforesaid drawbacks. It is one object of the present invention to provide an inflatable bag which automatically closes the air passage to prevent inside air from escaping out of the bag when inflated. It is another object of the present invention to provide an inflatable bag which causes a sense of beauty when inflated. To achieve these and other objects of the present invention, there is provided an inflatable bag comprised of collapsible air-tight bag body, a collapsible air inlet device sealed to the collapsible air-tight bag body, the collapsible air inlet device being a flat tube formed of two rectangular flaps sealed together and having an inside wall coated with a layer of ink, and a blow pipe having an inner end inserted into the ink-coated inside wall inside the air inlet device and peripherally sealed to the collapsible air inlet device and an outer end extended out of the collapsible air-tight bag. Through the blow pipe, air can be driven into the air inlet device by mouth to stretch open the air inlet device and to inflate the air-tight bag body. When the air-tight bag body is inflated, the air inlet device is compressed by air pressure to close its ink-coated inside wall and to stop air from escaping out of the air-tight bag body.
REFERENCES:
patent: 4798554 (1989-01-01), Nelson et al.
patent: 4983138 (1991-01-01), McGrath
patent: 5188558 (1993-02-01), Barton et al.
patent: 5334072 (1994-08-01), Epstein
patent: 5482492 (1996-01-01), Backer
patent: 5944576 (1999-08-01), Nelson et al.
Ackun Jacob K.
Bacon & Thomas PLLC
Carlson Jeffrey D.
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