Patent · US Expired

Process and device for continuous production of polyurethane block foam

US5844015A · kind A · utility

36Cited by

6References

2Claims

0Family size

Assignee

Maschinenfabrik Hennecke GmbH · DE

Inventors

Herbert Steilen · Rübhausen, DE
Reiner Raffel · Siegburg, DE
Robert Eiben · Lampertheim, DE
Wilfried Ebeling · Neunburg vorm Wald, DE

Key dates

Filing date	Nov 26, 1997
Grant date	Dec 1, 1998
Priority date	—
Expiry date	Nov 26, 2017

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29C44/467
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A process and a device are described for the production of polyurethane foam by application of a froth onto the conveyor belt of a block-foam installation, whereby the froth is applied onto the lower conveyor belt in a free, substantially vertical fall and flowing of the froth contrary to the direction of movement of the conveyor belt is prevented by a stationary, substantially vertical barrier arranged transversely on the conveyor belt.

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