Patent ID: 6444005
Filing Date: 2002-09-03
Classification: B01D

Abstract:
A dust collector comprising a housing enclosing clean-air and dirty-air chambers, a support base in the housing movable toward and away from a contact surface and having a support side and an opposite side, an outer edge and a plurality of guide pins located around said outer edge, the contact surface being spaced from the support base facing the support side thereof and including an opening, an elongate annular filter engaged between the support side and the contact surface, and a push device secured with respect to the housing and engaging the opposite side of the support base to (a) apply a force urging the support base toward the contact surface to hold the filter therebetween and (b) release the force permitting the support base to move away from the contact surface, whereby, when the force is applied, the filter is sandwiched and sealed with respect to the contact surface and the filter positioned on the support base is centered with respect to the opening in the contact surface.