|Publication number||US20050044634 A1|
|Application number||US 10/920,385|
|Publication date||Mar 3, 2005|
|Filing date||Aug 18, 2004|
|Priority date||Aug 25, 2003|
|Also published as||CN2655749Y|
|Publication number||10920385, 920385, US 2005/0044634 A1, US 2005/044634 A1, US 20050044634 A1, US 20050044634A1, US 2005044634 A1, US 2005044634A1, US-A1-20050044634, US-A1-2005044634, US2005/0044634A1, US2005/044634A1, US20050044634 A1, US20050044634A1, US2005044634 A1, US2005044634A1|
|Original Assignee||Cheng-Chung Wang|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (1), Referenced by (10), Classifications (8)|
|External Links: USPTO, USPTO Assignment, Espacenet|
1. Field of the Invention
The present invention relates to a self inflatable mattress, and more particularly to a self inflatable mattress having at least a first chamber and a second chamber isolated from the first chamber. A valve is mounted on the first chamber to allow air from the surrounding environment to enter the first chamber due to the self expansion of a sponge in the first chamber and a unidirectional valve is sandwiched between the first chamber and the second chamber to allow the air from the first chamber to enter the second chamber so that the mattress is able to fulfill the requirement of self inflation.
2. Description of Related Art
It is noted that the inflatable product in the market requires a pump to inflate/deflate the inflatable product and so the pump is a necessity to inflatable products. Therefore, the user will have to purchase a pump in addition to the inflatable product and prepare a space for storage of the pump. In order to facilitate the pumping speed to the inflatable product, the user may have two or more pumps working simultaneously to different portions of the inflatable product. As a consequence, the user will have to reserve more space for the storage of the pumps, which is quite a waste to space especially in urban areas. Further, once the pump is out of order, the inflatable product is useless such that the user will need to maintain the pump to be active and efficient for whenever needed. The labor and energy to maintain the pump efficient to fulfill the requirements are a drain on the time and resources of the user of the inflatable product.
To overcome the shortcomings, the present invention tends to provide an improved self inflatable mattress to mitigate the aforementioned problems.
The primary objective of the present invention is to provide an improved self inflatable mattress having a sponge inside the first chamber which is provided with a valve to allow surrounding air to enter the first chamber due to the self expansion of the sponge and a second chamber being isolated from the first chamber and having a unidirectional valve sandwiched between the first chamber and the second chamber such that the air in the first chamber due to the self expansion of the sponge is able to be forced into the second chamber by folding the first chamber.
Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
With reference to
A valve (12) is provided on the main portion (11) of the inflatable mattress (1) and a unidirectional valve (3) is provided on the extended portion (2) and sandwiched between the first chamber (110) and the second chamber (20). It is noted from
With reference to
When deflating the self inflatable mattress (1) is required, the moving plate (32) is moved away from the second holes (341) and the extended portion (2) is folded to force the air in the second chamber (20) to flow to the first chamber (110). After the extended portion (2) is fully deflated, the moving plate (32) is returned to close the second holes (341) to ensure that there is not air flowing to the second chamber (20) from the first chamber (110). Then the user repeatedly folds the main portion (11) to allow the air in the first chamber (110) to escape the main portion (11) from the valve (12) until the main portion (11) is fully deflated, which accomplishes the purpose of deflating the self inflatable mattress (1) of the present invention.
It is to be understood, however, that even though numerous characteristics and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US6611981 *||Sep 18, 2002||Sep 2, 2003||Feng Yi Outdoor Leisure Equipment Enterprise Co., Ltd.||Air mattress|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US7849544||Jun 12, 2008||Dec 14, 2010||Hill-Rom Industries Sa||Support device of the mattress type comprising a heterogeneous inflatable structure|
|US8104126||Oct 13, 2008||Jan 31, 2012||Hill-Rom Industries Sa||Method of inflating, in alternating manner, a support device having inflatable cells, and a device for implementing the method|
|US8162009||Apr 4, 2007||Apr 24, 2012||Chaffee Robert B||Method and apparatus for monitoring and controlling pressure in an inflatable device|
|US8225444||Jan 6, 2009||Jul 24, 2012||Chaffee Robert B||Inflatable device forming mattresses and cushions|
|US8413278||Mar 13, 2009||Apr 9, 2013||Robert B. Chaffee||Method and apparatus for monitoring and controlling pressure in an inflatable device|
|US8413674||Jan 8, 2010||Apr 9, 2013||Robert B. Chaffee||Valve with electromechanical device for actuating the valve|
|US8776293||Aug 8, 2011||Jul 15, 2014||Robert B. Chaffee||Pump with axial conduit|
|US8826478||Jul 24, 2012||Sep 9, 2014||Robert B. Chaffee||Inflatable device forming mattresses and cushions|
|US8839474||Apr 23, 2012||Sep 23, 2014||Robert B. Chaffee||Method and apparatus for monitoring and controlling pressure in an inflatable device|
|US20130219626 *||Oct 31, 2011||Aug 29, 2013||Roho, Inc.||Cushion and self-adjusting valve|
|U.S. Classification||5/709, 5/710|
|International Classification||A47C27/10, A47C27/08|
|Cooperative Classification||A47C27/10, A47C27/084|
|European Classification||A47C27/08A8, A47C27/10|