Apparatus for insulated building block

Details Apparatus for insulated building block Apparatus for insulated building block

1984-08-21

1985-09-24

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

425123, 425817R, B29C 2730, B28B 100

Patent

active

045430527

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 center block of three concrete blocks forming a unit is split longitudinally after curing of the insulating foam to expose an aesthetic block face.

REFERENCES:
patent: 2964820 (1960-12-01), Olson et al.
patent: 3058190 (1962-10-01), Wogulis et al.
patent: 3203069 (1965-08-01), Wogulis et al.
patent: 3287782 (1966-11-01), McClarney
patent: 3315327 (1967-04-01), McClarney
patent: 3522336 (1970-07-01), Piper et al.
patent: 3694533 (1972-09-01), Kilsey
patent: 4295810 (1981-10-01), Dennert et al.

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