IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0163041
(2002-06-05)
|
발명자
/ 주소 |
- Giori, Gualtiero G.
- Giori, Janine
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
23 인용 특허 :
5 |
초록
▼
A pressure adjustable foam support apparatus includes a resilient, air pressure adjustable, self-inflating foam core. A flexible, airtight cover encloses the core. One or more air passageways are formed through the covering in pneumatic communication with the foam core. Each passageway carries a val
A pressure adjustable foam support apparatus includes a resilient, air pressure adjustable, self-inflating foam core. A flexible, airtight cover encloses the core. One or more air passageways are formed through the covering in pneumatic communication with the foam core. Each passageway carries a valve for alternately permitting and blocking passage into and out of the core through the passageway. The valve is opened to exhaust air from and at least partially collapse the core and to allow a core that is at least partially collapsed to draw in air through the passageway and expand. The valve is closed to maintain a selected air pressure within the core whereby corresponding levels of density and firmness (IFD) are exhibited by the core. At least one level of density and firmness provides the core with a viscoelastic or latex foam feel hence greatly reducing pressure points and increasing comfort. A pressure adjustable foam support apparatus that can be made into a mattress, sofa bed, hospital mattress, futon mattress, couch, chaise lounge cushion, mattress topper and other furniture.
대표청구항
▼
A pressure adjustable foam support apparatus includes a resilient, air pressure adjustable, self-inflating foam core. A flexible, airtight cover encloses the core. One or more air passageways are formed through the covering in pneumatic communication with the foam core. Each passageway carries a val
A pressure adjustable foam support apparatus includes a resilient, air pressure adjustable, self-inflating foam core. A flexible, airtight cover encloses the core. One or more air passageways are formed through the covering in pneumatic communication with the foam core. Each passageway carries a valve for alternately permitting and blocking passage into and out of the core through the passageway. The valve is opened to exhaust air from and at least partially collapse the core and to allow a core that is at least partially collapsed to draw in air through the passageway and expand. The valve is closed to maintain a selected air pressure within the core whereby corresponding levels of density and firmness (IFD) are exhibited by the core. At least one level of density and firmness provides the core with a viscoelastic or latex foam feel hence greatly reducing pressure points and increasing comfort. A pressure adjustable foam support apparatus that can be made into a mattress, sofa bed, hospital mattress, futon mattress, couch, chaise lounge cushion, mattress topper and other furniture. igns for Real Devices", KTI Microlithography Seminar, pp. 67-75, Oct. 14-15, 1991. Newmark, D., et al., "Phase-Shifting Mask Design Tool", SPIE--11th Annual BACUS Symposium on Photmask Technology, vol. 1604, pp. 226-235, Sep. 25-27, 1991. Nolscher, C., et al., "Investigation of Self-Aligned Phase-Shifting Reticles by Simulation Techniques", SPIE--Optical/Laser Microlithography IV, vol. 1463, pp. 135-150 (1991). Asai, S., et al., "High Performance Optical Lithography Using a Separated Light Source", J. Vac. Sci. Technol. B, vol. 10, No. 6, pp. 3023-3026, Nov./Dec. 1992. Jinbo, H., et al., "Application of Blind Method to Phase-Shifting Lithography", IEEE, 1992 Symposium On VLSI Technology Digest Of Technical Papers, pp. 112-113 (1992). Ohtsuka, H., et al., "Phase Defect Repair Method for Alternating Phase Shift Masks Conjugate Twin-Shifter Method", Jpn. J. Appl. Phys., vol. 31, pp. 4143-4149 (1992). Pierrat, C., et al., "Phase-Shifting Mask Topography Effects on Lithographic Image Quality", IEEE, pp. 3.3.1-3.3.4 (1992). Watanabe, H., et al., "Detection and Printability of Shifter Defects in Phase-Shifting Masks II Defocus Characteristics", Jpn. J. Appl. Phys., vol. 31, pp. 4155-4160 (1992). Burggraaf, P., "Lithography's Leading Edge, Part I: Phase-Shift Technology and Part 2: I-Line and Beyond", Semiconductor International, pp. 43-47 and 52-56, Feb. 1992. Hosono, K., et al., "A Novel Architecture for High Spee
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