Fluid handling – Inflatable article – With pressure-responsive pressure-control means
Reexamination Certificate
2000-05-03
2001-07-10
Rivell, John (Department: 3753)
Fluid handling
Inflatable article
With pressure-responsive pressure-control means
C251S346000, C137S512100
Reexamination Certificate
active
06257269
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a multiple-purposed air valve that allows rapid injection of air into air mattress and rapid release of air from air mattress, and can be incorporated with electric exhaust (intake) fan to inject air and release air and release pressure automatically.
2. Description of the Prior Art
This invention is a multiple-purposed air valve component for air mattress, referring to a multiple-purposed air valve device that allows rapid injection and release of air and can be incorporated with electric exhaust (intake) fan to inject and release air as well as automatic release of pressure.
SUMMARY OF THE INVENTION
The air mattress is used mainly as a device to prevent decubitus from occurring to the long bed-ridden patients. Most users of such air mattress are patients suffering from major illness. As such, following concerns need to be addressed properly:
1. When CPR becomes pertinent to deal with a patient's critical condition, releasing air from the air mattress is of vital importance.
2. The conventional pump takes approximately 40 minutes to inject air into air mattress. Then an exhaust (intake) fan was invented to inject air into the air mattress, but this device is very inconvenient and troublesome in such away that air has to be injected into air mattress via all intake holes of the mattress.
3. The conventional air mattress doesn't posses the protective function of automatic pressure release. As such, the mattress can be easily broken if the weight on the mattress increases abruptly.
4. Electric exhaust (intake) fan cannot inflate the air mattress fully. When user shuts off the valve after injecting air into the mattress, some air will be leaking from the mattress.
To solve these problems, the inventor presents this invention to the general public and hopes that the present invention will benefit us all.
REFERENCES:
patent: 1539127 (1925-05-01), Lipman
patent: 4694515 (1987-09-01), Rogers, Jr.
patent: 4995124 (1991-02-01), Wridge, Jr. et al.
patent: 5090880 (1992-02-01), Mashimo
patent: 5544688 (1996-08-01), Freigang et al.
Pro-Techtor Inter-national Services
Rivell John
Schoenfeld Meredith H.
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