Patent · US Expired

Split mold for multi-component plastics, especially polyurethanes

US4555087A · kind A · utility

9Cited by

4References

4Claims

0Family size

Assignee

Elastogran Maschinenbau GmbH · DE

Inventors

Josef Wallner · Holzkirchen, DE
Manfred Kelterbaum · Rosbach, DE

Key dates

Filing date	Mar 23, 1984
Grant date	Nov 26, 1985
Priority date	—
Expiry date	Mar 23, 2004

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29K2075/00
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A split mold for multi-component plastics, especially polyurethanes, with venting channels has heating devices in the zone of the said channels to prevent plastic from entering the channels and thus forming flash on the moldings.

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