Refrigerated merchandiser display case with defrost device

Details Refrigerated merchandiser display case with defrost device Refrigerated merchandiser display case with defrost device

1981-01-19

1982-07-13

Tapolcai, Jr., William E.

Refrigeration

Display type

With air controlling or directing means

62282, 98 33R, A47F 304

Patent

active

043387926

ABSTRACT:
An improvement in a refrigerated display case in which an air flow restriction baffle is positioned adjacent to the discharge end of the air conduit containing the defrost ambient air band. The baffle increases the linear velocity of the air band and the air momentum sufficiently to cause the band to flow away from the access opening of the display case whereby continuous recirculation of the defrost air is avoided. The baffle can form a restricted air flow cross-sectional area which is about 50% to 90% of the cross-sectional area of the air flow conduit immediately proceeding the position of the baffle. A restricted air flow area of these amounts enable a linear velocity increase of about 10% to 100% based on the air band velocities normally used during defrost cycles.

REFERENCES:
patent: 2725726 (1955-12-01), Swanson
patent: 2923137 (1960-02-01), Swanson
patent: 4026121 (1977-05-01), Aokage et al.
patent: 4120174 (1978-10-01), Johnston
patent: 4275645 (1981-06-01), Ruff

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