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Multi-venting molding apparatus

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B29C-045/00   
미국특허분류(USC) 264/572 ; 425/130
출원번호 US-0677947 (1996-07-10)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Ladas & Parry
인용정보 피인용 횟수 : 10  인용 특허 : 6
초록

A multiple limbed component is molded in a gas injection mold with a corresponding number of outlets. The outlets are regulated by valves that are operated sequentially to permit progressive expulsion of the excess material in the mold cavity.

대표
청구항
▼

[ I claim:] [1.] A method of injection molding an article in a mold cavity having an inlet and plurality of outlets comprising the steps of injecting moldable material into said cavity through the inlet, closing said inlet to inhibit movement of material therethrough, injecting gas under pressure into said cavity to expel a portion of said moldable material therefrom through said outlets, closing said outlets during injection of gas into said cavity to pressurize said cavity and opening said outlets, one at a different time than another to permit expulsi...

이 특허에 인용된 특허 (6)

  1. Jaroschek Christoph (Herbolzheim DEX). Apparatus for the injection molding of fluid-filled plastic bodies. USP1995065423667.
  2. Jaroschek Christoph (Herbolzheim DEX). Apparatus for the injection molding of fluid-filled plastic bodies. USP1992025090886.
  3. Berdan Karl (Midland CAX). Blow-out vent valve. USP1996015484278.
  4. Loren Norman S. (24874 Chalk Farm Rd. Warren MI 48091). Gas assisted injection molding. USP1993045204050.
  5. Strunk Harald (Plettenberg DEX) Ghr Kurt (Attendorn-Windhausen DEX). Method of producing a hollow shaped body. USP1992015078949.
  6. Kurihara Tsuneo (Sayama JPX) Kusaka Katsushige (Sayama JPX) Ichikawa Teruo (Sayama JPX) Tanaka Hiromi (Sayama JPX) Higashi Toshiyuki (Sayama JPX). Molding apparatus for producing synthetic resin molded product. USP1997035612067.

이 특허를 인용한 특허 피인용횟수: 10

  1. Roberts, Jr., Richard W.. Bathtub/shower tray support. USP2016039271610.
  2. Roberts, Richard W.. Bathtub/shower tray support. USP20181110130220.
  3. Roberts, Richard W.. In-situ foam core structural articles and methods of manufacture of profiles. USP2015089102086.
  4. Roberts, Richard W.. In-situ foam core structural articles and system for forming. USP2017069688046.
  5. Roberts, Jr., Richard W.. In-situ foam core structural energy management system and method of manufacture. USP2014098840819.
  6. Roberts, Richard W.. In-situ foam core vehicle seating system and method of manufacture. USP2015079073462.
  7. Murphy John F.. Mold for use in a gas-assisted injection molding system and runner shut-off subsystem for use therein. USP2000056062842.
  8. Roberts, Jr., Richard W.. Recyclable plastic structural articles and method of manufacture. USP2016059346237.
  9. Roberts, Richard W.. Recyclable plastic structural articles and method of manufacture. USP20190210207606.
  10. Roberts, Jr., Richard W.. Structural plastic articles, method of use, and methods of manufacture. USP2016039272484.

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