| abstract |
A fabric filter cover sleeve woven on a flat loom in a manner allows a section of the fabric, having a specified width, to be opened up similar to a tube, sleeve or bag. Several of the tubes (or sleeves, or bags) may be woven on the loom simultaneously. The tubes may be continuous or closed on either or both end in a specified length. For example, a tube closed at one end may be considered a bag shaped filter cover. The fabric filter cover sleeves may be woven of various types of natural and synthetic yarns, such as extruded thermoplastic yarns. The woven fabric filter covers can be easily separated such that each sleeve can enclose, or cover, structures used within filters. Filter structures, such as filter grids, or filtration materials, such as diatomaceous earth, or sand, may be enclosed within the woven fabric sleeves to form filters. |