Patent ID: 9671126
Date: 2017-06-06
CPC Classifications: F24F,F25D

Claim:
1. A vestibule for reducing the flow of air between a first enclosure space and a second enclosure space, comprising: a compartment between the first enclosure space and the second enclosure space, the first enclosure space being a food processing room at a first temperature and the second enclosure space being at a second temperature that is cooler than the first temperature; an opening between the compartment and the second enclosure space; a partial barrier within the opening, wherein the partial barrier separates the compartment from the second enclosure space; a blower configured to draw air from the first enclosure space through a vestibule intake and to return the air to the first enclosure space through a vestibule exhaust; and a compartment exhaust port configured such that the blower draws air from the compartment through the compartment exhaust port and exhausts the air from the compartment through the vestibule exhaust into the first enclosure space.