Patent · US Expired

Device for producing ceramic mouldings with spring mounted injection head

US4721450A · kind A · utility

0Cited by

4References

12Claims

0Family size

Assignee

Eugen Buhler and Hutschenreuther AG · US

Inventors

Eugen Buhler · Thannhausen, DE
Klaus Strobel · Selb, DE
Karl Schwarzmeir · Selb, DE

Key dates

Filing date	May 7, 1986
Grant date	Jan 26, 1988
Priority date	—
Expiry date	May 7, 2006

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB28B3/003
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A device for producing ceramic mouldings is disclosed comprising an isostatic press-mould half having an isostatic pressure membrane and an injection head having an inlet opening for introducing granulate and an extraction orifice for sucking the granulate in or out of the mould cavity. The injection head is spring-mounted on a press crosspiece which supports it, so that, as the injection head moves towards the isostatic press-mould half, a sealing pressure slowly forms between the injection head and the isostatic press-mould half and as the injection head moves away from the isostatic press-mould half this sealing pressure is slowly reduced.

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