Dual chamber filter assembly with shaker
First Claim
Patent Images
1. A sweeper hopper and filter assembly including:
- a) a main housing defining a hopper, said housing including a particulate contaminate inlet, a clear air outlet, means providing communication between the inlet and the outlet, and means for maintaining a decreased pressure at the outlet compared to the pressure at the inlet, andb) a filter assembly disposed within the means providing communication between the inlet and outlet of said housing, said filter assembly including a removable filter media for militating against the flow of particulate contaminates therethrough, the filter media having a first surface facing upstream toward the inlet of said housing and a second surface facing downstream toward the clean air outlet of said housing, and means to dislodge particulate contaminates from the filter media, said means to dislodge including frame means having a hingedly mounted peripheral framing element for holding said filter media surrounding the removable filter media and an air permeable member extending across the second surface of the filter media, and means for intermittently impacting the air permeable member.
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Accused Products
Abstract
A sweeper hopper and associated filter assembly as illustrated and described. The filter assembly effectively divides the hopper into a particulate contaminant receiving chamber and a clean air exhaust chamber. The filter assembly includes at least a pair of particulate blocking filter means and means for selectively directing the transient air stream through one or the other or both of the filter means. The filter assembly further includes cleaning means for selectively imparting the filter means, typically during periods of quiescence, to physically loosen and remove particulate contaminants therefrom and direct such contaminants into the contaminant receiving chamber.
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Citations
9 Claims
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1. A sweeper hopper and filter assembly including:
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a) a main housing defining a hopper, said housing including a particulate contaminate inlet, a clear air outlet, means providing communication between the inlet and the outlet, and means for maintaining a decreased pressure at the outlet compared to the pressure at the inlet, and b) a filter assembly disposed within the means providing communication between the inlet and outlet of said housing, said filter assembly including a removable filter media for militating against the flow of particulate contaminates therethrough, the filter media having a first surface facing upstream toward the inlet of said housing and a second surface facing downstream toward the clean air outlet of said housing, and means to dislodge particulate contaminates from the filter media, said means to dislodge including frame means having a hingedly mounted peripheral framing element for holding said filter media surrounding the removable filter media and an air permeable member extending across the second surface of the filter media, and means for intermittently impacting the air permeable member. - View Dependent Claims (2, 3, 4, 5)
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6. A filter shaker assembly including, in combination:
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a) a hingedly mounted filter element frame, b) a rocker mounting base fixedly mounted on said filter element frame, c) a rocker plate pivotally mounted on said rocker mounting base, d) rocker plate pads fastened to opposite sides of a rocker plate, and e) means to cause said rocker plate pads to strike directly a filter mounted beneath said filter shaker assembly. - View Dependent Claims (7, 8, 9)
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Specification