B - Operations – Transporting – 31 – B
Patent
B - Operations, Transporting
31
B
93/37, 154/29.06
B31B 1/14 (2006.01) B26F 3/06 (2006.01) B29C 65/18 (2006.01) B29C 65/24 (2006.01) B29C 65/26 (2006.01) B29C 65/74 (2006.01) B31B 1/64 (2006.01) B31B 19/64 (2006.01) B29C 35/04 (2006.01)
Patent
CA 1076868
Abstract of the Disclosure A sheet piercing blade used to form perforate separation lines across continuous strip partible flattened tubular plastic film packaging bags is maintained a preselected optimum operating temperature by a heat transfer fluid medium circulating through a duct in substantially contiguous contact with the blade, a heat exchanger, and conduits connecting the duct and the heat exchanger.
261196
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