B - Operations – Transporting – 05 – B
Patent
B - Operations, Transporting
05
B
154/1
B05B 13/02 (2006.01) B28B 11/04 (2006.01) B29C 65/54 (2006.01)
Patent
CA 1211351
ABSTRACT A method and apparatus for forming insulated concrete blocks in which at least two and preferably three concrete blocks are fed concurrently to the inlet end of the apparatus having a pair of opposed, continuous upper and lower conveyors for concurrently passing said blocks through the apparatus, and a foam injection system for delivering foam to the cavity or cavities formed between the blocks, wherein continuous strips of an impermeable material such as polyfilm are fed to bottom, ends and upper sides of the cavity or cavities to form an impermeable barrier between the foam and conveyors to substantially prevent escape of said foam from the said cavity or cavities. Former plates secured to end frames carried by the lower conveyor and former plates secured to transverse segments comprising the upper and lower conveyors interact with the former plates secured to end frames to provide a desired shape to the foam insulation. The centre block of three concrete blocks forming a unit is split longitudinally after curing of the insulating foam to expose an aesthetic block face.
461312
Gowling Lafleur Henderson Llp
Stevens Garry B.
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