Cutting of hollow core slabs

Details Cutting of hollow core slabs Cutting of hollow core slabs

1994-07-28

1996-06-25

Aftergut, Karen

Plastic and nonmetallic article shaping or treating: processes

With severing, removing material from preform mechanically,...

Making hole or aperture in article

264157, B28B 100

Patent

active

055297358

ABSTRACT:
A method of transversely cutting a prefabricated slab having one or more hollow longitudinal cores includes inserting a pair of expandable plugs into at least one of the one or more cores, the plugs of the or each pair being positioned in a respective core spaced apart on opposite sides of an intended cut line and post-insertion expansion of the plugs blocking the respective core; introducing settable material into a portion of the or each blocked core between its spaced apart pair of expanded plugs; and after at least partial setting of the introduced settable material, cutting the slab transversely across the intended cut line.

REFERENCES:
patent: 1416691 (1922-05-01), Crozier
patent: 4778371 (1988-10-01), Seppanen
patent: 5035100 (1991-07-01), Sachs
patent: 5366676 (1994-11-01), Kobayashi

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