Method for forming shaped pieces of insulation

Details Method for forming shaped pieces of insulation Method for forming shaped pieces of insulation

1986-08-04

1989-01-31

Lowe, James

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Plural, intermittent pressure applying

264122, 425419, B29C 4304, B29C 5902

Patent

active

048014150

ABSTRACT:
Shaped pieces of insulation having non-uniform thickness but substantially uniform density are formed by simultaneously compacting and consolidating at least first and second portions of a particulate insulation material in an independent manner so as to form a shaped piece of insulation in which the first and second portions have different thicknesses in the direction of compaction. The degree of compaction of the first portion is the same as the degree of compaction of the second portion so that the shaped piece of insulation has substantially uniform density.

REFERENCES:
patent: 937105 (1909-10-01), Simons
patent: 1807443 (1931-05-01), Senn
patent: 2033411 (1936-03-01), Carson
patent: 2181619 (1939-11-01), Co Van et al.
patent: 2306443 (1944-11-01), Onions
patent: 2888715 (1959-06-01), Frank
patent: 3166617 (1965-01-01), Munk
patent: 3647332 (1972-03-01), Schmaus
patent: 4012215 (1977-03-01), Schwab et al.
patent: 4073851 (1978-02-01), Munk

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