Insulating insert for masonry building block and method for maki

Details Insulating insert for masonry building block and method for maki Insulating insert for masonry building block and method for maki

1982-01-13

1984-07-31

Bell, J. Karl

Static structures (e.g., buildings)

Insulating insert; e.g., filler in cavity in preconstructed...

Stonelike type shell

523094, E04B 188, E04B 208

Patent

active

044621957

ABSTRACT:
A molded insulating insert of expanded polystyrene has a central section and hingedly connected side sections which are bendable toward each other to bring the insert to a U-shaped configuration for insertion in a building block cavity. The hinges are formed to provide resistance to full ninety degree bending of the side sections so that the insert side sections are inclined slightly outwardly in a free condition. On flexing inwardly and insertion in a block cavity the side sections tend to spring outwardly and frictionally grip the walls of the cavity. Lug-notch connection means frictionally retain the inserts in the U-shaped configuration and prevent dislodgement of sections in the event of hinge rupture. In molding the inserts, a transfer process is employed with the hinges partially formed in a hot mold and thereafter fully formed in a cold mold. The polystyrene is compressed in the hinge area to a higher density for hinge integrity. Density in the hinge area is approximately doubled. Reflective foil is also applied to the inner surfaces of the side sections.

REFERENCES:
patent: 3557840 (1971-01-01), Maybee
patent: 3649398 (1972-03-01), Keith
patent: 3755031 (1973-08-01), Hoffman et al.
patent: 3885363 (1975-05-01), Whittey
patent: 3903663 (1975-09-01), Bainter
patent: 4027445 (1977-06-01), Nickerson
patent: 4193241 (1980-03-01), Jensen et al.
patent: 4275539 (1981-06-01), Abbott
patent: 4380887 (1983-04-01), Lee

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