US 6,981,287 B1 | ||
Inflatable bed unit | ||
Yuan-Chen Chen, 8F-1, No.102, Sec.2, Roosevelt Rd., Taipei (Taiwan) | ||
Assigned to Yuan-Chen Chen, (Taiwan) | ||
Filed on Jun. 15, 2004, as Appl. No. 10/866,765. | ||
Int. Cl. A47C 27/10 (2006.01) |
U.S. Cl. 5—634 | 5 Claims |
1. An inflatable bed unit comprising:
an inflatable primary bed including
an inflatable main part,
an inflatable head part connected to and in fluid communication with said main part, said head part having a bottom end and
being pivotable relative to said main part,
an inflatable pillow part connected to said bottom end of said head part such that said head part is raised by said pillow
part and is pivoted relative to said main part from a horizontal level to an inclined angle relative to said main part when
said pillow part expands upon injection of air therein, and
a check valve interconnecting said pillow part and said head part and defining a valve opening that is opened to permit air
flow from said pillow part to said head part when the pressure in said pillow part is greater than that in said head part,
and that is closed to prevent air flow from said head part to said pillow part when the pressure in said head part is greater
than that in said pillow part.
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