Method and apparatus for shrinking a foam sleeve on a taper wall

Details Method and apparatus for shrinking a foam sleeve on a taper wall Method and apparatus for shrinking a foam sleeve on a taper wall

1991-09-10

1993-02-23

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

34105, 156 86, 1563809, 156497, 219388, 264230, 264DIG71, 392416, 392418, 432124, 432224, 432225, B29C 6102

Patent

active

051887754

ABSTRACT:
A method of shrinking a foamed sleeve onto a tapered wall container which includes moving containers through a predetermined path, subjecting the containers to infrared heat applied by directing air past infrared heaters against the containers as they are moved in the predetermined path and progressively applying additional heat to the containers as they are moved in the predetermined path by first directing heat at the maximum container diameter and progressively applying the heat toward the minimum container diameter. In a preferred form, the heat is applied by directing heated air against the containers. In one form, the containers are rotated progressively in the predetermined path while the additional heat is applied. In another form, the containers are moved without rotation in a predetermined path while the additional heat is applied along the sides of the path.

REFERENCES:
patent: 3226278 (1965-12-01), Scofield, Sr. et al.
patent: 3808702 (1974-05-01), Laessig
patent: 3847540 (1974-11-01), Farfaglia et al.
patent: 4066866 (1978-01-01), Fresnel
patent: 4092382 (1978-05-01), Heckman et al.
patent: 4172873 (1979-10-01), Spicer
patent: 4260567 (1981-04-01), Poppe et al.
patent: 4579614 (1986-04-01), Burmeister et al.

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