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특허 상세정보

Pleated paper filter cartridge

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B01D-046/00   
미국특허분류(USC) 55/499 ; 55/502 ; 55/381 ; 55/521
출원번호 US-0931770 (1978-08-07)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 62  인용 특허 : 1
초록

A filter including a resilient frame, a hollow body of pleated paper, and end closures, molded together to make a flexible unitary structure which maintains its shape and has the efficiency characteristics of the paper medium.

대표
청구항

A replacement filter for use in a filter housing having an elongated rectangular opening through which the filter is inserted, comprising: a supporting frame of generally rectangular configuration dimensioned to overlie the rectangular housing opening and defining front and back faces, the frame comprising a first pair of elongated sides spaced apart to define an elongated opening therebetween, and a second pair of shorter sides connecting the ends of the first pair; a filter body of pleated filter material, the body being flexible about the pleats and f...

이 특허를 인용한 특허 피인용횟수: 62

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