[특허]Air filtration device

[미국특허] Air filtration device 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B03C-003/82 B03C-003/34
출원번호	US-0565428 (2004-07-19)
등록번호	US-7449053 (2008-11-11)
우선권정보	GB-0316837.4(2003-07-18); GB-0409547.7(2004-04-29); GB-0410648.0(2004-05-13)
국제출원번호	PCT/GB04/003140 (2004-07-19)
§371/§102 date	20060118 (20060118)
국제공개번호	WO05/011845 (2005-02-10)
발명자 / 주소	Hallam,David Richard
출원인 / 주소	Hallam,David Richard
대리인 / 주소	Young Basile
인용정보	피인용 횟수 : 22 인용 특허 : 161

초록 ▼

The present invention provides an air filtration cartridge suitable for use in the treatment of air in a forced airflow air supply system. The cartridge comprises an inner casing having an upstream stage defining a chamber having an inlet for receiving a forced airflow. The chamber has an outlet which leads into a downstream stage comprising a filter holder and mounting a high airflow electrostatic filter. Inside the chamber is a low power coronal discharge ozone generator device.

대표청구항 ▼

What is claimed is: 1. An air filtration cartridge suitable for use in the treatment of air in a forced airflow air supply system having an air supply conduit provided with an in-line filtration cartridge mounting formed and arranged for releasably mounting a replaceable air filtration cartridge so that the air supply is passed through said cartridge, said cartridge comprising a casing having: an upstream stage defining a chamber, the chamber being defined by an earthed casing comprising a metal or a plastics material impregnated or coated with a metallic material and having an inlet for receiving a said forced airflow, in use of the cartridge, and an outlet; at least one low power coronal discharge ozone generator mounted inside the chamber, said at least one ozone generator being formed and arranged for generating a restricted concentration of ozone and any other reactive species formed together therewith, within an inactivating zone contained within said cartridge, through which said air flow is passed in use of said cartridge, which restricted concentration is sufficient to effectively inactivate airborne pollutant material entrained in the air flow, yet which restricted concentration decays sufficiently outside said inactivating zone so that the concentration of ozone in the cleaned air expelled from said cartridge is at a physiologically acceptable level without the use of an ozone decomposition catalyzer; and a downstream stage coupled to said upstream stage outlet and formed and arranged for mounting, in use of the cartridge, a high airflow electrostatic filter. 2. The cartridge of claim 1 wherein said low power corona discharge ozone generator comprises a low power corona discharge device provided with a low power high voltage output transformer. 3. The cartridge of claim 2 wherein the low power corona discharge device comprises concentric tubular metal gauze electrodes separated by a tubular strengthened glass dielectric. 4. The cartridge of claim 3 wherein the glass dielectric includes titanium dioxide strengthened borosilicate glass. 5. A cartridge according to claim 1 wherein the low power corona discharge ozone generator has a power rating of from 4 to 50 watts. 6. A cartridge according to claim 1 wherein an AC supply with a frequency in the range from 50 to 1000 Hz is used for said corona discharge ozone generator. 7. A cartridge according to claim 1 wherein an AC supply with an operating voltage in the range from 1 to 6 kV provides power to the corona discharge ozone generator. 8. A cartridge according to claim 1 wherein an AC supply provides a current in the range from 1 to 10 mA to the corona discharge ozone generator. 9. A cartridge according to claim 1 wherein a solid dielectric is used with the low power corona discharge ozone generator. 10. A cartridge according to claim 1 further comprising an array of ozone generators distributed across the airflow path through said upstream stage. 11. A cartridge according to claim 1 wherein a downstream stage filter mounting defined by the downstream stage has a depth of from 5 to 50 cms. 12. A cartridge according to claim 1 wherein said inlet is fitted with at least one filter. 13. A cartridge according to claim 12 further comprising at least one inlet filter for removing smoke. 14. A cartridge according to claim 1 wherein said downstream stage includes an annular air reservoir extending around a filter housing for said high airflow electrostatic filter, downstream of said filter, for the purpose of ensuring that the flow of air back into the air supply system is substantially unrestricted. 15. A cartridge according to claim 1 further comprising seals formed and arranged for ensuring the forced airflow is directed through said upstream and downstream stages of the cartridge. 16. A cartridge according to claim 11 wherein said filter mounting has a said high airflow electrostatic filter mounted therein. 17. A cartridge according to claim 16 wherein said filter is in the form of a stack of filter elements. 18. A method of cleaning air without the use of an ozone decomposition catalyzer, comprising: providing a cartridge according to claim 1 with a high airflow electrostatic filter mounted in the filter mounting thereof; powering the ozone generator of said cartridge so as to generate ozone in the inactivation zone of said cartridge; and passing a flow of said air through said inactivation zone and then through said filter.

이 특허에 인용된 특허 (161) 인용/피인용 타임라인 분석

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Chang Shih-Ger (El Cerrito CA), Yellow phosphorus process to convert toxic chemicals to non-toxic products.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표IPC 관리번호, 국가코드, 자료구분, 상태, 출원번호, 출원일자, 공개번호, 공개일자, 공고번호, 공고일자, 등록번호, 등록일자, 발명명칭(한글), 발명명칭(영문), 출원인(한글), 출원인(영문), 출원인코드, 대표출원인, 출원인국적, 출원인주소, 발명자, 발명자E, 발명자코드, 발명자주소, 발명자 우편번호, 발명자국적, 대표IPC, IPC코드, 요약, 미국특허분류, 대리인주소, 대리인코드, 대리인(한글), 대리인(영문), 국제공개일자, 국제공개번호, 국제출원일자, 국제출원번호, 우선권, 우선권주장일, 우선권국가, 우선권출원번호, 원출원일자, 원출원번호, 지정국, Citing Patents, Cited Patents
저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

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이 특허에 인용된 특허 (161) 인용/피인용 타임라인 분석

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