초록 ▼

A venting device for use in venting a hollow structure such as a refrigerator door to be filled with an expanding foamed-in-place insulation material has tapered apertures to allow gas to escape while retaining the insulation material. The venting device can include a chamber for receiving a hinge p

A venting device for use in venting a hollow structure such as a refrigerator door to be filled with an expanding foamed-in-place insulation material has tapered apertures to allow gas to escape while retaining the insulation material. The venting device can include a chamber for receiving a hinge pin or a shelf end.

대표청구항 ▼

A venting device for use in venting a hollow structure having at least one wall and adapted to be filled with an expanding foamed-in-place insulation material, the venting device comprising: a body having an inner surface, the inner surface to be oriented toward the interior of the hollow structure,

A venting device for use in venting a hollow structure having at least one wall and adapted to be filled with an expanding foamed-in-place insulation material, the venting device comprising: a body having an inner surface, the inner surface to be oriented toward the interior of the hollow structure, and an outer surface and at least one aperture extending over a first area on the inner surface, through the body from the inner surface to the outer surface, and over a second area on the outer surface, the first area being greater than the second area, the aperture tapering inwardly from the inner surface to the outer surface, the body having a thickness sufficiently great so that the apertures formed therein are long enough to prevent escape of foamed-in-place insulation.