Patent ID: 7128643
Filing Date: 2006-10-31
Classification: E04B,F24F

Abstract:
1. A ventilator equipped to hold an air filter, the ventilator being shaped for placement in a building foundation, the ventilator comprising: a front of the ventilator, for facing away from the building toward the outdoors when the ventilator is installed; a rear of the ventilator, for facing into the building when the ventilator is installed; a ceiling of the ventilator; a floor of the ventilator; at least one securing device located at the rear, for securing the air filter spanning the rear; and at least one manual handling feature located at the front, for removing the ventilator from the building foundation, wherein the front comprises a perforated grid surface and the rear is open, wherein the ceiling is substantially flat and the floor is substantially flat, wherein the ceiling and the floor are at an angle with each other so that the floor and ceiling are farther apart at the front than at the rear, wherein the front is equipped with at least one drainage area for draining liquid from the floor of the ventilator, wherein the floor is between the rear and the front comprising the grid surface, and wherein the front comprising the grid surface is flat and configured for placement substantially flush with the building foundation.