EP 0286481 B1 19910424 - METHOD AND APPARATUS FOR FASTENING A METALLIC PART TO ONE SIDE OF AN OPHTHALMIC LENS BY MOULDING THE PART AS MOLTEN METAL
Title (en)
METHOD AND APPARATUS FOR FASTENING A METALLIC PART TO ONE SIDE OF AN OPHTHALMIC LENS BY MOULDING THE PART AS MOLTEN METAL
Publication
Application
Priority
FR 8704376 A 19870330
Abstract (en)
[origin: US4852631A] In this blocking apparatus, at least a portion of the pipe connecting the inlet orifice of the mold to the outlet orifice of the tank containing molten metal is in thermal contact with the mold, which mold includes at least one channel through which a cooling fluid can be caused to flow. Heater means are also associated with the pipe. Thus, the flow of molten metal from the tank into the mold can be stopped by allowing a plug of solidified metal to form in the pipe when the mold is cooled, and the flow of molten metal can be re-established by melting the plug of solidified metal by use of the heater means.
IPC 1-7
IPC 8 full level
B24B 13/005 (2006.01)
CPC (source: EP US)
B24B 13/0052 (2013.01 - EP US)
Designated contracting state (EPC)
AT DE ES GB NL
DOCDB simple family (publication)
EP 0286481 A1 19881012; EP 0286481 B1 19910424; AT E62849 T1 19910515; DE 3862498 D1 19910529; ES 2021846 B3 19911116; FR 2613263 A1 19881007; FR 2613263 B1 19910118; US 4852631 A 19890801
DOCDB simple family (application)
EP 88400636 A 19880317; AT 88400636 T 19880317; DE 3862498 T 19880317; ES 88400636 T 19880317; FR 8704376 A 19870330; US 17329288 A 19880325