B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/911
B29C 39/10 (2006.01) B01D 19/00 (2006.01) B29C 37/00 (2006.01) B29C 39/42 (2006.01) H01F 41/00 (2006.01)
Patent
CA 1215509
Abstract of the Disclosure. A method of casting around at least one metal body with soaking, impregnating or casting resin in a closed mold containing the metal body wherein vacuum is applied to a supply of the resin in a supply vessel for making the resin ready, and the mold is evacuated before filling it with the resin includes a) pumping the resin from the supply vessel into the mold from below through a disconnectible supply line vacu- um-tightly connected to the mold; b) rinsing the mold and the metal body with an amount of the resin which is a multiple of the amount required to form a casting; c) discharging excess resin from the mold through a riser and returning the excess resin to the supply vessel through a return line vacuum-tightly connected to the riser; d) dispersing the returning resin into a thin film thereof in the vacuum of the supply vessel before permitting it to fall back into the resin supply in the supply vessel, whereby the film of resin is free of bubbles; and e) disconnecting the supply line and the return line from the filled mold for a time period during which the resin sets and an apparatus to carry out the method.
448600
Fetherstonhaugh & Co.
Volta-Werke Elektricitats-G.m.b.h.
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