Plastic and nonmetallic article shaping or treating: processes – Pore forming in situ – Of inorganic materials
Patent
1985-04-25
1987-06-02
Murtagh, John E.
Plastic and nonmetallic article shaping or treating: processes
Pore forming in situ
Of inorganic materials
264 455, 264 50, 264 71, 264 72, 264333, B22B 108, B29H 720
Patent
active
046702040
ABSTRACT:
A process of producing ICMUs (insulated concrete masonry units) having an inner load-bearing portion and one or two outer insulating portions are disclosed. Disregarding the insulation cores, heat flows from the outer side wall or walls to the inner portion through outer end walls and, in some embodiments, webs. These outer side walls and webs are heat bridges and are thinner and of significantly lower density than the other walls of the ICMU, thereby providing improved thermal insulation.
Also disclosed are ICMUs with a vertical or horizontal recess in one outer insulating portion. Electrical conduit and/or plumbing can be placed into these recesses. In addition, corner ICMUs are disclosed which provide increased structural strength when used to construct a 90.degree. corner between two structural walls because of a special mid-wall in the corner ICMU.
REFERENCES:
patent: 2009984 (1935-07-01), Billner
patent: 3236925 (1966-02-01), Urmston
patent: 3442991 (1969-05-01), Lanz
patent: 3594465 (1971-07-01), Vrijma
patent: 4130973 (1978-12-01), Gustavsson
patent: 4357289 (1982-11-01), Jakobsson
patent: 4574064 (1986-03-01), Paakkinen
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