Refrigerator cabinet liner having non-crinkled corners
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 23, 1991
Issued Date -
N/A
app pub date -
Jan 18, 1991
filing date -
Oct 7, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A refrigerator liner of a vacuum formed plastic with a thickness of about 0.007' to 0.050' has each corner formed without crinkling when thermal insulation material is foamed against the outer surface of the liner. The non-crinkling of each corner of the refrigerator liner is accomplished through forming each of the corners with a flat surface having its periphery as a circle during vacuum forming of the refrigerator liner rather than with a spherical radius. This enables the flat surface to be placed in tension when moved against a corresponding flat surface of a foam plug by the pressure produced during foaming of the foamed thermal insulation material. This results in each corner having a central portion with a convex cross section and an outer portion surrounding the central portion and concave in cross section whereby it does not appear to be crinkled.
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Family
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Cited Art Landscape
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