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특허 상세정보

Filter device for flowable plastic material

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B01D-033/00    B01D-033/48   
미국특허분류(USC) 210/359 ; 210/390 ; 210/429 ; 210/432 ; 210/433.1 ; 210/435 ; 210/498
출원번호 US-0362100 (1999-07-28)
우선권정보 IT0001740 (1998-07-28)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Young & Thompson
인용정보 피인용 횟수 : 3  인용 특허 : 14

A filter device for separating particulate material from a stream of flowable plastics; the device comprises a body member having at least a filter chamber and a flow path extending between inlet and outlet sides. A filter band transversally extends in said filter chamber, across the flow path, being supported by a back-plate having a perforated area. An axially movable valving member comprising a flow passage for the plastic material, is provided into the chamber, and an actuator to axially move the valving member between an advanced and a retracted pos...


[ What I claim is:] [1.]1. A continuous filter device for separating a particulate material from a stream of a flowable plastic material to be filtered , having the particulate material entrained therein, the filter device comprising:a body member having inlet and outlet ports, and a flow path for the plastic material which extends between said inlet and outlet ports;a filter assembly extending transverse to the flow path creating a first channel portion upstream of the filter assembly, and a second channel portion downstream of the filter assembly, said...

이 특허에 인용된 특허 (14)

  1. Britchi Lucian (Philipp-Weber Strasse 3 D-6457 Maintal 3 DEX). Apparatus for cleaning viscous materials. USP1989064842750.
  2. Kching Horst (Mnster DEX) Stude Rolf-Rdiger (Mnster DEX). Apparatus for filtering plasticized materials in extruders. USP1987104701118.
  3. Hills William H. (514 Hammock Rd. Melbourne Village FL 32904). Continuous polymer filter. USP1989074849113.
  4. Schwanekamp Heinrich,DEX ; Wilken-Trenkamp Ludger,DEX ; Hangmann Manfred,DEX ; Leuders Wilfred,DEX. Control device for filters in at least two partial fluid streams. USP1998075779898.
  5. Miley Gary D. (Stow OH). Extrusion apparatus and method with pressure equalization. USP1996065527499.
  6. Schulz Helmut (St. Florian ATX) Bacher Helmut (Puchenau ATX) Wendelin Georg (Linz ATX). Filter apparatus having filter elements shiftable between filtering and backwashing positions. USP1988064752386.
  7. Herbert Adolf (Hanover DEX). Filter or tool-changing device for screw extruders. USP1982114358262.
  8. Ishida Yasuhiko (Hiroshima JPX) Kato Tomomi (Mie JPX). Filter screen changer for resin extruder. USP1997025603828.
  9. Shirato Toru (Hiroshima JPX) Yoshida Minoru (Hiroshima JPX) Mizuguchi Hideki (Hiroshima JPX). Filter screen exchanging apparatus for plastic extruder. USP1979094167384.
  10. Kalman Peter Gabor (51 Compayne Gardens London N.W.6 EN). Filtering process and apparatus. USP1976023940335.
  11. Whitman Timothy W. (South Hamilton MA). Polymer filter with backflush pump. USP1992085141631.
  12. Mladota John (Lausanne CH). Screen changer with pre-fill screen blocks. USP1977054025434.
  13. 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.
  14. Paquette James P. (Uxbridge MA). Slide plate filters for thermoplastic and similar materials. USP1979074159953.