Patent · US Expired

Storage head for a blow molding machine

US5460504A · kind A · utility

2Cited by
17References
25Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 20, 1993
Grant dateOct 24, 1995
Priority date
Expiry dateAug 20, 2013

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB29C49/041
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

The invention relates to a storage head for a blow moulding machine for discontinuous manufacture of multi-layer co-extruded and blow-moulded hollow bodies made of thermoplastic. To improve the product quality and to increase the throughput, each distributor element is designed as a spiral channel distributor (20) which distributes the individual molten plastic streams uniformly at the periphery. The ejector (14) consists of at least two concentric tubular pieces (42, 44) and the peripherally distributed plastic flows from the ejector (14) through an annular gap (46) into the storage space (16) in the storage head housing (10) below the ejector.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.