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US 9,221,003 B2Granted
Filter
OwnerKlaus Schumann, Gebhard Schumanninventors
Life of this patent
Estimating the term…
Abstract
A filter bag is longitudinally formed with at least a portion of the filter bag formed in a frusto-conical shape. The filter bag has a plurality of radially extending members that form a propeller shaped cross-section. A lower, frusto conically shaped lower portion balloon or billows during a reverse air cycle enhances dust fall from the exterior for cleaning. A manifold having multiple openings is also disclosed.
Claims14
A pulse jet filter element, comprising:
- an inner cage;
- and
- a filter bag surrounding the inner cage, the filter bag comprising a generally cylindrical middle portion and a lower portion extending from and below the generally cylindrical middle portion, the lower portion having a frusto-conical shape that tapers from near a top of the lower portion of the filter bag to the bottom and terminal end of the filter bag, wherein the middle portion is positioned over the inner cage, and the lower portion of the filter bag that is above the bottom and terminal end of the filter bag is constructed and arranged to billow out and away from the inner cage when air is forced from inside the filter bag to an exterior of the filter bag.
Dependencies are inferred from the claim text.