Apparatus for edge treatment for fibreboard panels and the like

Details Apparatus for edge treatment for fibreboard panels and the like Apparatus for edge treatment for fibreboard panels and the like

1977-11-03

1980-04-08

Spicer, Jr., Robert L.

Plastic article or earthenware shaping or treating: apparatus

Preform reshaping or resizing means: or vulcanizing means...

Surface deformation means only

425113, 264252, B29C 1700, B29C 2300

Patent

active

041970780

ABSTRACT:
Fibreboard panels and the like, useful as drawer fronts, cabinet doors, table tops, furniture parts, moldings, baseboards and the like are formed of compressed fibre panels or strips with an edge treatment forming a contoured or profiled edge surface. The wood fibres on the edge surface are heat seared and die pressed together to form a heat seared sealed surface of skin which does not require subsequent filling and further mechanical surfacing and which is more easily finished by the application of liquid decorating materials, paints, stains, printing inks and various colorants. The cellulosic fibrous blanks are mechanically preshaped to provide a contoured profile edge which is subjected to heat and pressure from a heated die which sears and seals together the fibres forming a skin over the profiled edge surface. The skin formation results in a reduction of time and labor that is required for any final finishing operations and provides a better appearance for the entire surface of the fibreboard piece.

REFERENCES:
patent: 2293252 (1942-08-01), Foster et al.
patent: 3424836 (1969-01-01), McKelvey et al.
patent: 3491176 (1970-01-01), Wahlstrom
patent: 3981653 (1976-09-01), Greenhalgh et al.
patent: 4090835 (1978-05-01), Bronson, Jr. et al.

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