Air filter assembly for filtering air with particulate matter
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Jul 18, 2000
Grant Date -
N/A
app pub date -
Aug 7, 1998
filing date -
Aug 7, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method of cleaning a filter element includes discharging a quantity of pressurized air from a blow pipe into a Venturi element in air flow communication with a filter element to provide a positive cleaning pressure differential along greater than 95% of a length of the filter element. In one arrangement, an air filter assembly for accomplishing this method comprises a housing, a first filter construction, a first Venturi element, and a pulse jet cleaning system including a blow pipe. The blow pipe and the Venturi element are constructed and arranged to provide a positive cleaning pressure differential along greater than at least 75% of the length of the filter media within the element. In one embodiment, the Venturi element is described as including a specially formed contoured section in the throat portion of the element.
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