Device for producing dry ice and pressure relief thereof

A device for producing a solidified block of carbon dioxide, the device comprising:

• a first housing portion;
• a second housing portion adapted for connection with the first housing portion, the first and second housing portions together forming an interior molding chamber adapted to receive liquid carbon dioxide at a pressure where expansion of the liquid carbon dioxide occurs, resulting in a mixture of solidified and gaseous carbon dioxide;
• and
• a first pressure relief device comprising a biasing member for biasing the first and second housing portions together, the biasing member permitting relative movement between the first and second housing portions when internal pressure from the gaseous carbon dioxide exceeds a predetermined amount;
• wherein relative movement between the first and second housing portions causes gaseous carbon dioxide to be released from the interior molding chamber to thereby reduce the internal pressure.