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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0510221 (1974-09-30) |
발명자 / 주소 |
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출원인 / 주소 |
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인용정보 | 피인용 횟수 : 17 인용 특허 : 0 |
Method and apparatus for producing closed loop accordion pleated filters. Accordion pleated filter structures are advanced from a feeder hopper one at a time by pusher members and guided along guide means arranged in a converging fashion and which pass between the endmost pleats to bring the ends of
A method for folding and joining an accordion pleated filter having a pair of downwardly facing end flaps at opposite ends thereof comprising the steps of: lowering the filter upon a pair of spaced elongated guides to rest the folds adjacent the end flaps upon said guides; moving the lowered filter
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