Removable vent having a filter for use in a building foundation

Details Removable vent having a filter for use in a building foundation Removable vent having a filter for use in a building foundation

2006-10-31

2006-10-31

Wilson, Gregory (Department: 3749)

Ventilation

Having inlet airway

Including specific cover or shield for exterior vent opening

C454S271000, C055S506000

Reexamination Certificate

active

07128643

ABSTRACT:
A removable ventilator is equipped to hold an air filter, the ventilator being designed for placement in a building foundation, for example between concrete blocks. The front of the ventilator faces away from the building when the ventilator is installed. The rear of the ventilator faces into the building when the ventilator is installed. At least one securing device is located at the rear of the ventilator, for securing the air filter to the rear. At least one manual handling feature is located at the front of the ventilator, for removing the ventilator from between the concrete blocks.

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