IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0420163
(2003-04-22)
|
발명자
/ 주소 |
|
출원인 / 주소 |
- Team Worldwide Corporation
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
6 |
초록
▼
A self-inflating mattress which comprises a first chamber, a second chamber, a foam and a check valve, wherein, the foam is disposed inside the first chamber. The check valve is provided between the first chamber and the second chamber, and air is allowed to flow only from the first chamber to the s
A self-inflating mattress which comprises a first chamber, a second chamber, a foam and a check valve, wherein, the foam is disposed inside the first chamber. The check valve is provided between the first chamber and the second chamber, and air is allowed to flow only from the first chamber to the second chamber.
대표청구항
▼
What is claimed is: 1. A self-inflating mattress including: a first chamber; a second chamber; a first foam received in the first chamber; and a check valve buried in the first foam to communicate the first chamber and the second chamber, only allowing air inside the first foam to flow from the
What is claimed is: 1. A self-inflating mattress including: a first chamber; a second chamber; a first foam received in the first chamber; and a check valve buried in the first foam to communicate the first chamber and the second chamber, only allowing air inside the first foam to flow from the first chamber to the second chamber when the first chamber is compressed. 2. A self-inflating mattress as claimed in claim 1, wherein the check valve comprises an inner flange, a rod, a diaphragm and a spring, wherein the spring surrounds the rod and biases the diaphragm against the flange, and wherein when sufficient air pressure is present, the diaphragm is pushed away from the flange thereby allowing air to flow through the check valve. 3. A self-inflating mattress as claimed in claim 1, wherein the check valve comprises a dumbbell-shaped body including an internal longitudinal passage open at a first longitudinal end of the body and a lateral hole opening a second end of the longitudinal passage, and a resilient ring wrapped around the body covering the lateral hole, whereby air can only flow out from the lateral hole. 4. A self-inflating mattress as claimed in claim 1, wherein the check valve comprises a tube and a diaphragm, the tube having (i) a pair of annular lips formed at opposite ends of the tube to confine the diaphragm inside the tube and (ii) a plurality of protrusions formed on an inner surface of one of the annular lips, whereby air can flow through the check valve when the diaphragm is pushed against the protrusions, but is precluded from flowing through the check valve when the diaphragm is pushed against the other one of the annular lips. 5. A self-inflating mattress including: a first chamber; a second chamber; a first foam received in the first chamber; and a second foam received in the second chamber; a check valve provided between the first chamber and the second chamber, only allowing air inside the first foam to flow from the first chamber to the second chamber when the first chamber is compressed. 6. A self-inflating mattress as claimed in claim 5, further including a third chamber, a passage communicating the first and third chambers, and a closing device for opening and closing the id="DEL-S-00001" date="20061128" passingid="DEL-S-00001" id="INS-S-00001" date="20061128" passageid="INS-S-00001" . 7. A self-inflating mattress as claimed in claim 6, further including a first valve attached to the first chamber for inflating and deflating the first chamber, a second valve attached to the second chamber for inflating and deflating the second chamber, and a third valve attached to the third chamber for inflating and deflating the third chamber. 8. A method of inflating a mattress, comprising the steps of: opening a first valve to a first chamber including foam and permitting the foam to expand; closing the first valve and a second valve to a second chamber; forcing air from the first chamber to the second chamber through a check valve buried in the foam of the first chamber; reopening the first valve to permit the foam to expand; and closing the first valve. 9. A method of inflating a mattress, comprising the steps of: opening a first valve to a first chamber including foam and opening a second valve to a second chamber including foam and permitting the foam in both chambers to automatically expand; closing the first valve and the second valve; forcing air from the second chamber into the first chamber through a check valve buried in the foam of the first chamber; reopening the second valve to permit the foam in the second chamber to expand; and closing the second valve. 10. A method of inflating a mattress having (i) first, second and third chambers and respective first, second and third valves, the second and third chambers having foam disposed therein, (ii) a passage, closeable via a closing device, connecting between the first and second chambers, and (iii) a check valve buried in the foam of the second chamber, the check valve allowing air to communicate between the second and third chambers, the method comprising the steps of: opening the second valve and closing the first valve; allowing the foam in the second chamber to expand; closing the second valve; forcing air from the second chamber into the first chamber via the passage; closing the closing device; opening the second and third valves and allowing the foam in those chambers to expand; closing the second and third valves; forcing air from the third chamber into the second chamber via the check valve; opening the third valve and allowing the foam therein to expand; and closing the third valve. 11. A method of inflating a mattress, comprising the steps of: providing a mattress with a first chamber and a second chamber, the first chamber having foam disposed therein; and forcing air from the first chamber into the second chamber through a check valve buried in the foam, the check valve only allowing air inside the first chamber to flow from the first chamber to the second chamber when the first chamber is compressed. id="INS-S-00002" date="20061128" 12. A method of inflating a mattress, comprising the steps of: opening a first valve to a first chamber including foam and permitting the foam to expand; closing the first valve and a second valve to a second chamber; forcing air from the first chamber to the second chamber through a passage provided between the first chamber and the second chamber; closing a closing device to prevent air from the second chamber from passing to the first chamber through the passage; reopening the first valve to permit the foam to expand; and closing the first valve.id="INS-S-00002" id="INS-S-00003" date="20061128" 13. A method of inflating a mattress having (i) first, second and third chambers and respective first, second and third valves, the second and third chambers having foam disposed therein, (ii) a passage, closeable via a closing device, connecting between the first and second chambers, and (iii) a check valve provided between the second chamber and the third chamber, allowing air to communicate between the second and third chambers, the method comprising the steps of: opening the second valve and closing the first valve; allowing the foam in the second chamber to expand; closing the second valve; forcing air from the second chamber into the first chamber via the passage; closing the closing device; opening the second and third valves and allowing the foam in those chambers to expand; closing the second and third valves; forcing air from the third chamber into the second chamber via the check valve; opening the third valve and allowing the foam therein to expand; and closing the third valve.id="INS-S-00003"
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