Knit pile filter
OwnerFrank T. Beaneinventor
Life of this patent
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Abstract
A filter, and apparatus and methods using the filter, in the form of a knitted fabric having particular characteristics and effective for separating materials from flowing fluid streams.
Claims15
A method of making fabric filter bags comprising circularly knitting crimped, synthetic yarn having a denier in the range of from about 70 to about 300 into a tube of predetermined diameter and at least a predetermined length while forming the yarn into stitches defining a ground and stitches defining terry loop pile extending from the ground to a predetermined height, the stitches defining open areas in the range of from about 1 micron to about 100 microns;
- and then sewing the fabric into a bag.
A fabric filter bag comprising a tube of circularly knitted crimped, synthetic yarn having a denier in the range of from about 70 to about 300 and knit into stitches defining a ground and stitches defining terry loop pile extending from the ground to a predetermined height, the stitches defining open areas in the range of from about 1 micron to about 100 microns, and the tube being closed at one end.
In a bag filter apparatus having a fabric bag for filtering material from flowing fluid, housing means for enclosing and supporting said bag, and circulating means including inlet and outlet means for directing a flow of fluid through said housing means and said bag, the improvement wherein said bag comprises a tube of circularly knitted crimped, synthetic yarn having a denier in the range of from about 70 to about 300 and knit into stitches defining a ground and stitches defining terry loop pile extending from the ground to a predetermined height, the stitches defining open areas in the range of from about 1 micron to about 100 microns, and the tube being closed at one end.
Dependencies are inferred from the claim text.