Filter engagement device
AssigneeVenturedyne, Ltd.
InventorGlenn W. Bitner
Life of this patent
Estimating the term…
Abstract
A device for sealing filters in a dust collector. The preferred dust collector has a housing enclosing clean-air and dirty-air chambers, a support base in the housing having a support side and an opposite side, and a contact surface spaced from the support base and facing the support side. A filter is positioned between the contact surface and support side. A push, lift or hold-release device is provided to secure the filter in sealed engagement with the support side and the contact surface. In a “hold” position, said device secures the filter with respect to the housing. In a “removal” position, said device permits the filter to be removed from the housing.
Claims18
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.
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, the contact surface being spaced from the support base and facing the support side thereof an elongate annular filter engaged between the support side and the contact surface, and a push denice 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, said push device including a cam surface spaced apart from the support base, an engage-pedal arm having a first length, a cam-follower arm connected to the engage-pedal arm along a first end and movably engaged with the cam surface along a second end, the cam follower arm having a second length which is less than the first length whereby, when the engage pedal arm is moved in a first direction, the cam follower arm acts against the support base and cam surface to apply the urging force causing the filter to be sandwiched and sealed with respect to the contact surface.
A dust collector with filter-mounting apparatus comprising:
- a housing including clean-air and dirty-air chambers;
- filter structure having first and second ends and inner and outer portions one of which is in communication with the clean-air chamber and the other of which is in communication with the dirty-air chamber;
- a contact surface positioned with respect to the housing, said contact surface being adapted to support the filter first end;
- a movable support base positioned with respect to the housing and spaced apart from the contact surface, said support base having a support side adapted to support the filter second end, said support base being mounted for movement toward and away from the contact surface between (a) a hold position in which the support base and contact surface coact to hold the filter between them and (b) a removal of the filter, and
- a hold-release device acting against the support base including:
- a plate positioned adjacent the support base;
- a push member extending between the plate and the support base, said push member being laterally movable between the hold position in which the push member acts against the plate and support base to urge the support base toward the contact surface and the removal position in which the support base is further away from the contact surface;
- and
- a movement arm secured to the push member and mounted for back and forth movement to move the push member laterally between the hold and removal positions.
Dependencies are inferred from the claim text.