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Self-inflating mattressRelated Patent Categories: Beds, Mattress (for Whole Body), Having Confined Gas (e.g., Air Mattress), With Solid Filler (e.g., Foam, Spring, Fiber)Self-inflating mattress description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20060037145, Self-inflating mattress. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS REFERENCE [0001] The present invention is a continuation-in-part (CIP) application of an U.S. application Ser. No. 10/920,385, filed on Aug. 18, 2004. BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to a self-inflating mattress, and more particularly to a self-inflating mattress that has two chambers and a unidirectional valve. One chamber has a supporting chamber which the unidirectional valve is easily and tightly mounted on without any leakage environment. [0004] 2. Description of the Related Art [0005] Conventional inflatable products in the market, such as inflatable mattresses, are inflated/deflated with air pumps. Therefore, people buying an inflatable product would have to purchase a pump. To facilitate the speed of inflating the inflatable product, people may need two or more pumps working simultaneously at different portions of the inflatable product. However, air pumps are expensive and occupy storage space when not in use. Further, once a pump is out of order or not available, the inflatable product becomes useless. [0006] Another conventional inflatable product disclosed in U.S. Pat. No. 6,611,981 has a unidirectional valve tightly fitted between two chambers in the body to allow air inside one chamber to pass through the other chamber. However, the way to mount the unidirectional valve between the chambers is difficult and may cause leakage. [0007] To overcome these shortcomings, the present invention intends to provide an improved self-inflating mattress to mitigate the aforementioned problems. SUMMARY OF THE INVENTION [0008] The present invention relates to a self-inflating mattress, and more particularly to a self-inflating mattress that has two chambers and a unidirectional valve. One chamber has a supporting chamber which the unidirectional valve is easily and tightly mounted on without any leakage. [0009] A self-inflating mattress in accordance with the present invention comprises a hollow body, an inflating valve, a deflating valve, a unidirectional valve and a foam material. [0010] The body has at least two chambers serving respectively as a primary chamber and a secondary chamber. The primary chamber has a supporting chamber communicating with the primary. The secondary chamber covers the supporting chamber. [0011] The inflating and deflating valves are mounted on the body and communicate respectively with the primary and secondary chambers. [0012] The unidirectional valve is mounted on the supporting chamber, communicates with the supporting and secondary chambers and only allows air to flow from the primary chamber to the secondary chamber when open. [0013] 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. BRIEF DESCRIPTION OF THE DRAWINGS [0014] FIG. 1 is a perspective view of a first embodiment of the self-inflating mattress in accordance with the present invention; [0015] FIG. 2 is a perspective view of the unidirectional valve of the self-inflating mattress in FIG. 1; [0016] FIG. 3 is an exploded perspective view of the unidirectional valve of the self-inflating mattress in FIG. 2; [0017] FIG. 4 is a cross-sectional side view of the self-inflating mattress along line 4-4 in FIG. 1; [0018] FIG. 5 is a cross-sectional side view of a second embodiment of the self-inflating mattress in accordance with the present invention; [0019] FIG. 6 is a cross-sectional side view of a third embodiment of the self-inflating mattress in accordance with the present invention; and [0020] FIG. 7 is a cross-sectional side view of a fourth embodiment of the self-inflating mattress in accordance with the present invention. Continue reading about Self-inflating mattress... Full patent description for Self-inflating mattress Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Self-inflating mattress patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Self-inflating mattress or other areas of interest. ### Previous Patent Application: Airbed combination Next Patent Application: Comfort cushion or bed Industry Class: Beds ### FreshPatents.com Support Thank you for viewing the Self-inflating mattress patent info. IP-related news and info Results in 0.13425 seconds Other interesting Feshpatents.com categories: Computers: Graphics , I/O , Processors , Dyn. Storage , Static Storage , Printers 174 |
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