Flexible plastic foam with a groove- and tongue-like closing sys

Details Flexible plastic foam with a groove- and tongue-like closing sys Flexible plastic foam with a groove- and tongue-like closing sys

1984-09-06

1986-03-18

Van Balen, William J.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

138162, 138166, 138DIG9, 428157, 428159, 428188, 428192, B32B 104, B32B 108, F16L 900

Patent

active

045768463

ABSTRACT:
The present invention relates to cellular plastic insulating tubes or cellular plastic insulating plates of a flexible plastic foam with a groove- and tongue-like closing system arranged along the longitudinal axis, in which the groove and tongue can be undercut. The tongue consists of a more rigid or stiffer material than the material forming the groove, or, if the tongue consists of the same material as the insulating cellular material, this is reinforced or stiffened.

REFERENCES:
patent: 3126035 (1964-03-01), Espetvedt
patent: 3204668 (1965-09-01), Emerson, Jr. et al.
patent: 4087501 (1978-05-01), Moser
patent: 4287245 (1981-09-01), Kikuchi

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