中科微点-全球专利检索

  1. Login
  2. Sign Up
Invention Grant
US07883329B2 Device for the production of tubular pre-forms with asymmetrical annular pistons 有权
用于生产具有不对称环形活塞的管状预成型件的装置

  • Patent Title: Device for the production of tubular pre-forms with asymmetrical annular pistons
  • Patent Title (中): 用于生产具有不对称环形活塞的管状预成型件的装置
  • Application No.: US10593938
    Application Date: 2005-03-14
  • Publication No.: US07883329B2
    Publication Date: 2011-02-08
  • Inventor: Günter Richter
  • Applicant: Günter Richter
  • Agency: Lucas & Mercanti, LLP
  • Agent Klaus P. Stoffel
  • Priority: DE102004015551 20040330
  • International Application: PCT/EP2005/002707 WO 20050314
  • International Announcement: WO2005/097462 WO 20051020
  • Main IPC: B29C47/06
  • IPC: B29C47/06 ;  B29C47/22
Device for the production of tubular pre-forms with asymmetrical annular pistons
Abstract:
The invention relates to a device for the production of multi-layer, co-extruded, tubular pre-forms made from thermoplastic plastic. A co-extrusion head (10) comprises co-axially arranged flow channels (FK1, FK2), each supplied by a single inlet opening (ZF1, ZF2) with a material melt, distributed annularly in a distribution ring (26, 28). The gap width in each distribution ring (26, 28) is greater in the vicinity of the inlet opening (ZF1, ZF2) than the gap width (s2, s6) in the region of the side opposing the inlet opening (ZF1, ZF2). The flow channels (FK1, FK2) are also asymmetric with regard to the gap widths.
Abstract(Chinese):

本发明涉及一种用于生产由热塑性塑料制成的多层共挤出管状预成型件的装置。 共挤出头（10）包括同轴布置的流动通道（FK1，FK2），每个流动通道由具有材料熔体的单个入口开口（ZF1，ZF2）提供，环形地分布在分配环（26,28）中。 在与入口侧（ZF1，ZF2）相对的一侧的区域中，各分配环（26,28）的间隙宽度大于入口开口（ZF1，ZF2）附近的间隙宽度（s2，s6） 。 流动通道（FK1，FK2）对于间隙宽度也是不对称的。reduction

Public/Granted literature
Information query
Espacenet
Patent Agency Ranking
0/0