Patent · US Expired

Mold for the production of flat moldings of curable casting resins

US5052916A · kind A · utility

8Cited by

2References

1Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Josef Dullings · Issum, DE
Paul Vente · Leverkusen, DE
Werner Kloker · Krefeld, DE

Key dates

Filing date	Mar 13, 1990
Grant date	Oct 1, 1991
Priority date	—
Expiry date	Mar 13, 2010

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S425/812
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

To extend the useful life of the elastic seal (6) which is arranged between a base plate (1) and a cover plate (2) of molds for the production of flat moldings of curable casting resins and through the passages (8) of which the mold cavity is charged with the casting resin melt and vented and to accelerate venting and filling, the passages (8) are in the form of fixed capillary tubes (9) which project partly into the seal (6) and which are each adjoined by a channel (10) opening into the mold cavity (3) and closure needles (13) insertable into the channels are provided.

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