Oven for a procession of containers
AssigneeMidland-Ross Corporation
InventorAlex J. Schregenberger
Life of this patent
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Abstract
Disclosed is apparatus for simultaneously subjecting the inside and outside surfaces of a procession of containers to a gaseous treatment, such as the hardening by heating of a previously applied liquid coating. The containers each provide a closed end and another open end by which it rests on a conveyor which carries a procession of the cans through a treatment region. Structure is provided for the creation of a difference in air pressure as applied to different portions of the open ends of the containers to induce air currents interiorly of thereof.
Claims13
Apparatus for treating a procession of similar containers each of which has an open end and a closed end comprising:
- a conveyor providing support along a path for a procession of the containers while traversing an elongate treatment region with the open ends thereof engaged with the conveyor in an approximate plane forming one extremity of said region;
- enclosure means having an elongate intake port means of substantially less width than said open ends, said port means opening along, and extending centrally along, said path for the passage of air or other gas centrally through the conveyor into the enclosure means along a central linear portion of said path substantially narrower than said open ends;
- said conveyor comprising uniformly spaced support means for the containers moving concurrently along opposite sides of said intake port means;
- inlet means located transversely outwardly of said inlet port means providing space for passage of air into portions of the open ends of said containers extending transversely beyond said intake port means;
- and
- air pumping means for producing a drop in air pressure at said intake port means such that the pressure is lower inside said enclosure means than at said inlet means.
Dependencies are inferred from the claim text.