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특허 상세정보

Screen changer with pre-fill screen blocks

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B01D-027/00   
미국특허분류(USC) 210/236 ; 210/447 ; 210/455 ; 425/197
출원번호 US-0619795 (1975-10-06)
발명자 / 주소
출원인 / 주소
인용정보 피인용 횟수 : 15  인용 특허 : 0
초록

A screen changer mounted between a flowable plastic extruder and a die has a clamp frame movable rectilinearly across the extrusion passage by fluid piston and cylinder means to successively position one of four screen blocks across the passage. A used block is removable from the frame at one end, whereupon latch mechanism retains three blocks while the frame retracts to receive a fresh block. Each block contains a filter recess, a purge recess and a pre-fill groove in the upstream face, so that the incoming block is pre-filled with plastic and purged wh...

대표
청구항

A screen changer for removing foreign matter from a flowable plastic advancing along a possage of an extruder, said screen changer being of the type having a plurality of screen blocks movable end-to-end along a rectilinear slideway, extending across said passage, by drive means to position said blocks individually and successively in operative screening position across said passageway and characterised by: each said screen block having a planar rim encompassing a shallow filter recess, for receiving a filter, in the upstream face thereof, said filter co...

이 특허를 인용한 특허 피인용횟수: 15

  1. Kching Horst (Mnster DEX) Stude Rolf-Rdiger (Mnster DEX). Apparatus for filtering plasticized materials in extruders. USP1987104701118.
  2. Rapp Willard E. (Griggstown NJ). Cleanable filter and method of cleaning same. USP1981034257901.
  3. Gaul ; Jr. Milton U. (Hockessin DE). Diverting plate. USP1985034507072.
  4. Lambertus Friedrich (Stuttgart DEX). Extruder with a cassette filter for molten plastic material. USP1985044511320.
  5. Previero Flavio,ITX. Filter device for flowable plastic material. USP2001046216880.
  6. Avery, James Frederick; Boyko, Ronald Alan; Corbett, Daniel Wayne; Malarkey, Christopher John; Sariego, Kenneth Charles; Treacy, Jr., David Robertson. Methods of extruding a honeycomb body. USP2014038673206.
  7. Trott Delano B. (Marblehead MA). Polymer filtration apparatus. USP1989034814186.
  8. Whitman Timothy W.. Screen changer with controlled gap. USP2000016010625.
  9. Ogoshi Shunji (Hiroshima JPX) Yoshida Minoru (Hiroshima JPX) Mukuda Nobuo (Hiroshima JPX) Ishida Yasuhiko (Hiroshima JPX) Imamura Yukio (Hiroshima JPX). Screen pack replacing apparatus. USP1996115578206.
  10. Konno Masashi (Akashi JPX) Ikeda Osamu (Kobe JPX). Screen/diverter changing mechanism for extruders. USP1983114416605.
  11. Trott, Delano B.. Sealing device in a polymer filtration device. USP2015079090002.
  12. Zibell Bodo (Porta Westfalica DEX) Patrovsky Hubert (Lhne DEX) Gneuss Detlef (Bad Oeynhausen DEX). Sieve device for cleaning molten plastics. USP1986054588502.
  13. Ullrich Martin (Leverkusen DEX) Gemperlein Heinz (Dormagen DEX 4). Small volume outlet apparatus with a sieve changing device for multiple shaft screw machines. USP1982034318677.
  14. Reinbold Heinz (Petersbergstrasse 5 5200 Siegburg/Kaldauen DEX). Spinning apparatus. USP1989104875846.
  15. Koch,William F.. System for inserting and removing frames of a fluid transfer system. USP2007047201845.