B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
18/708
B29C 45/76 (2006.01) B29C 39/24 (2006.01) B29C 39/42 (2006.01)
Patent
CA 1290526
IMPROVEMENTS IN MOLD AND DIE OPERATION ABSTRACT OF THE DISCLOSURE A mold or die having two parts with a cavity and an interface between them and a feed opening in one of the mold parts cooperates with a charge feed for raw changes and any evacuation device providing a low pressure. Alternatingly the feed and the evacuation is connected to the the feed opening, so that upon connection of the evacuation device a pressure gradient obtains in the feed opening for obtaining an outflow of air from the mold cavity through the feed opening, while on connecting the feed to the feed opening, the pressure gradient in the feed opening is reversed for obtaining a flow of charge material into the mold cavity; a channel in one of the mold parts extends from the interface and peripherally in relation to the cavity, there being a shallow slot connecting the channel to the cavity; a seal circumscribes the channel to seal the cavity and the channel against atmospheric pressure; and a duct means in the one mold part having the channel leads from the the channel to the evacuation so that the reversed pressure gradient into the feed opening and out of the cavity continues to discharge gases that develop during filling.
551223
Smart & Biggar
Wieser Marianne
LandOfFree
Mold and die operation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Mold and die operation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mold and die operation will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1206988