Blow molded article

Details Blow molded article Blow molded article

1993-12-07

2000-07-04

Williamson, Michael A.

Stock material or miscellaneous articles

Hollow or container type article

428 357, 428189, 428192, 220469, 220339, 220521, 220522, 206373, B29D 2400

Patent

active

060835796

ABSTRACT:
A blow molded hollow doubled wall article wherein the inner wall has an edge portion and a central portion adjacent the edge portion, including at least one opening in the central portion providing access to the space between the inner and outer walls and forming a flap member connected to said edge portion.

REFERENCES:
patent: 417979 (1889-12-01), Borcherdt
patent: 2672232 (1954-03-01), Kessell, Jr.
patent: 2685363 (1954-08-01), Falk et al.
patent: 2783874 (1957-03-01), Brown et al.
patent: 3327841 (1967-06-01), Schurman
patent: 3795265 (1974-03-01), Schurman et al.
patent: 3828969 (1974-08-01), Schurman
patent: 3933243 (1976-01-01), Schurman
patent: 4101033 (1978-07-01), Schurman
patent: 4611713 (1986-09-01), Byrns

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