Patent ID: 6123048
Filing Date: 2000-09-26
Classification: A01K

Abstract:
In an animal housing structure having a roof provided with a ventilation hole, a litter box filter system comprising:a) an exhaust system having an inlet and an outlet, and further comprising:1. a fan housing;2. an electric fan mounted in the fan housing;3. an exhaust filter;4. a slot in the fan housing for removably receiving the exhaust filter; andb) adapting means connecting the inlet to the exhaust system to the roof, the adapting means being fixed to the inlet of the exhaust system and removably resting upon the roof, said adapting means extending a distance beyond said inlet and covering the ventilation hole to form substantially an air seal with the roof, whereby responsive to the electric fan, air may freely flow from the ventilation hole through the adapting means into the exhaust system, through the ventilation hole and through the exhaust filter.