초록 ▼

An apparatus for filtering particulate material from air and for removing the particulate material collected upon a filter is disclosed. The apparatus includes a housing having an air inlet and an air outlet. A hollow longitudinally extending filter is secured within the housing. The filter has an o

An apparatus for filtering particulate material from air and for removing the particulate material collected upon a filter is disclosed. The apparatus includes a housing having an air inlet and an air outlet. A hollow longitudinally extending filter is secured within the housing. The filter has an outer surface, an open interior, opposite ends, and a longitudinal axis extending between the ends. The filter is formed of a porous media. One end of the filter is removably secured relative to the housing so that the longitudinal axis of the filter extends generally vertically. The other end of the filter is closed. A first chamber is defined around the outer surface of the filter. The chamber is in communication with the air inlet whereby air moving from the inlet to the outlet passes through the filter into the interior thereof and deposits particulate material on the outer surface of the filter. A mechanism is provided for removing the particulate material collected on the outer surface of the filter. The mechanism for removing the particulate material includes a device connected to the closed end for rotating the closed end and the end of the filter attached thereto to twist the filter.

대표청구항 ▼

Self-cleaning apparatus for removing particulate material from air comprising: (a) a housing having an air inlet and an air outlet; (b) filtering means comprising a hollow frusto-conical shaped filter; (c) said filter having an outer surface, an open interior, opposite open ends with one of said end

Self-cleaning apparatus for removing particulate material from air comprising: (a) a housing having an air inlet and an air outlet; (b) filtering means comprising a hollow frusto-conical shaped filter; (c) said filter having an outer surface, an open interior, opposite open ends with one of said ends having a larger diameter than the other end, and a longitudinal axis extending between the ends; (d) said filter being formed of a pleated pourous media; (e) means for removably securing the end with the larger diameter within said housing; (f) a closure plate secured to and sealing the other end; (g) means defining a first chamber around the outer surface of said filter, said first chamber being in communication with said air inlet whereby air moving from said inlet to said outlet passes through said filter into the interior thereof and deposits particulate material on said outer surface of the filter; (h) means for removing particulate material collected on the outer surface of said filter by twisting said filter; (i) means for biasing said filter to a neutral position wherein said filter is in an untwisted condition; and (j) said removing means including a rotatable rod having a longitudinally extending axis, said rod extending from said plate in a direction generally transverse to a major face of said plate, means for drivingly coupling said rod to said plate, camming means engaging said rod for rotating said rod from said neutral position of said rod in a first rotative direction through an angular displacement less than 90°and for rotating said rod from said neutral position in an opposite rotative direction through an angular displacement less than 90°, said coupling means transferring the rotary motion of said rod to said plate while permitting said rod to move transversely of said major face of the plate, and a drive motor for driving said camming means.