IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0499359
(1983-05-31)
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발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
Bell, Seltzer, Park & Gibson
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인용정보 |
피인용 횟수 :
8 인용 특허 :
6 |
초록
▼
An evaporative cooler in which a cooler pad includes a high loft body of synthetic fibers coated with a hydrophilic foam. The open nature of the pad allows air to flow freely through the pad, while the foam coating the fibers serves to wick water contacting the pad throughout the pad thus optimizing
An evaporative cooler in which a cooler pad includes a high loft body of synthetic fibers coated with a hydrophilic foam. The open nature of the pad allows air to flow freely through the pad, while the foam coating the fibers serves to wick water contacting the pad throughout the pad thus optimizing the cooling efficiency of the pad.
대표청구항
▼
1. An evaporative cooler comprising an enclosure, an evaporative cooler pad positioned within said enclosure, means for feeding water to the pad for flow through the pad, and a blower for moving air through the pad, said evaporative cooler pad comprising a high loft body of randomly oriented synt
1. An evaporative cooler comprising an enclosure, an evaporative cooler pad positioned within said enclosure, means for feeding water to the pad for flow through the pad, and a blower for moving air through the pad, said evaporative cooler pad comprising a high loft body of randomly oriented synthetic fibers, said fibers being separated from one another along the greater part of their respective lengths and forming interconnecting interstices and passageways throughout the body such that air directed toward the pad may flow generally freely therethrough in all directions, and said pad also comprising a hydrophilic preformed foam which substantially coats and bonds the synthetic fibers of the body and which also bridges and spans random portions of the interstices and passageways therethrough to substantially increase the available surface area of the pad for contact of the water with the air flowing therethrough, said preformed foam and its surface having a minute cellular structure serving as means for producing a capillary type effect when contacted by water whereby the pad upon being contacted by water wicks the water along its foam area to thereby optimize the relative cooling efficiency of the pad. 2. The evaporative cooler of claim 1 wherein said pad additionally comprises a prebonding agent which coats portions of the synthetic fibers of the pad body, said prebonding agent stabilizing the pad body and underlying the hydrophilic foam at those portions of the pad body coated by the prebonding agent and the hydrophilic foam. 3. The evaporative cooler of claim 2 wherein the prebonding agent of the cooler pad is a polymeric acrylic emulsion and wherein the hydrophilic foam of the cooler pad comprises a vinyl acetate homopolymer emulsion, a polymeric acrylic emulsion, a foam stabilizer and water. 4. The evaporative cooler of claim 2 wherein the hydrophilic foam of the cooler pad has a primary emulsifying ingredient selected from the group consisting of a vinyl acetate homopolymer, a styrene butadiene polymer, a nitrile polymer, and a polyvinyl resin. 5. An evaporative cooler comprising an enclosure, an evaporative cooler pad positioned within said enclosure, means for feeding water to the pad for flow through the pad, and a blower for moving air through the pad, said evaporative cooler pad comprising a high loft body of randomly oriented synthetic fibers, said fibers being separated from one another along the greater part of their respective lengths and forming interconnecting interstices and passageways through the body such that air directed toward the pad may flow generally freely therethrough in all directions, the body being stabilized with the prebonding agent which coats portions of the synthetic fibers of the body, said pad also comprising a preformed hydrophilic foam comprised of a vinyl acetate homopolymer emulsion, a polymeric acrylic emulsion, a foam stabilizer and water, which substantially coats and bonds the synthetic fibers of the body and which also bridges and spans random portions of the interstices and passageways therethrough to substantially increase the available surface area of the pad for contact of the water with the air flowing therethrough, said preformed foam and its surface having a minute cellular structure serving as means for producing a capillary type effect when contacted by water whereby the pad upon being contacted by water wicks the water along its foam areas to thereby optimize the relative cooling efficiency of the pad. 6. An evaporative cooler pad comprising a high loft body of randomly oriented synthetic fibers, said fibers being separated from one another along the greater part of their respective lengths, forming interconnecting interstices and passageways throughout the body such that air directed toward the pad may flow generally freely therethrough in all directions, said pad also comprising a preformed hydrophilic foam which substantially coats and bonds the synthetic fibers of the body and which also bridges and spans random portions of the interstices and passageways therethrough to substantially increase the available surface area of the pad for contact by water with air flowing therethrough, said preformed foam and its surface having a minute cellular structure serving as means for producing a capillary type effect when contacted by water whereby the pad upon being contacted by water wicks the water along its foam areas to thereby optimize the relative cooling efficiency of the pad. 7. The cooler pad of claim 6 which additionally comprises a prebonding agent which coats portions of the synthetic fibers of the body, said prebonding agent stabilizing the body and underlying the hydrophilic foam at those portions of the body coated by the prebonding agent and the hydrophilic foam. 8. The cooler pad of claim 7 wherein the prebonding agent is a polymeric acrylic emulsion and wherein the hydrophilic foam comprises a vinyl acetate homopolymer emulsion, a polymeric acrylic emulsion, a foam stabilizer and water. 9. The cooler pad of claim 7 wherein the hydrophilic foam has a primary emulsifying ingredient selected from the group consisting of a vinyl acetate homopolymer, a styrene butadiene polymer, a nitrile polymer, and a polyvinyl resin. 10. An evaporative cooler pad comprising a high loft body of randomly oriented synthetic fibers, said fibers being separated from one another along the greater part of their respective lengths and forming interconnecting interstices and passageways throughout the body such that air directed toward the pad may flow generally freely therethrough in all directions, the body being stabilized with a prebonding agent which coats portions of the synthetic fibers of the body, said pad also comprising a hydrophilic preformed foam comprised of a vinyl acetate homopolymer emulsion, a polymeric acrylic emulsion, a foam stabilizer and water, which substantially coats and bonds the synthetic fibers of the body and which also bridges and spans random portions of the interstices and passageways therethrough to substantially increase the available surface area of the pad for contact by water with air flowing therethrough, said preformed foam and its surface having a minute cellular structure serving as a means for producing a capillary type effect when contacted by water whereby the pad upon being contacted by water wicks the water along its foam areas to thereby optimize the relative cooling efficiency of the pad. 11. The cooler pad of claim 10 wherein the prebonding agent is a self-crosslinking acrylic polymer. 12. The cooler pad of claim 10 wherein the hydrophilic foam comprises, by volume, from about 50 to 150 parts acetate homopolymer emulsion, from about 150 to about 50 parts polymeric acrylic emulsion, from about 5 to about 25 parts foam stabilizer, from about 0.5 to about 5 parts rewettable wetting and dispersing agent and from about 25 to about 200 parts water. 13. The cooler pad of claim 11 wherein the hydrophilic foam comprises, by volume, about 100 parts acetate homopolymer emulsion, about 75 parts polymeric acrylic emulsion, about 10 parts foam stabilizer, about 3 parts rewettable wetting and dispersing agent and about 100 parts water.
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