Filter bag and method for suppressing electrostatic charges
Patent 4322232 Issued on March 30, 1982. Estimated Expiration Date: 
October 30, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 30, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1928670 2100951 3288175 Cloth having antistatic properties Velvet fabric Knit pile filter Patent #: 4284507 InventorAssigneeApplicationNo. 06/202133 filed on 10/30/1980US Classes:55/360, WITH ELECTRICAL GROUNDING MEANS210/243, ELECTRICAL INSULATING OR ELECTRICITY DISCHARGING210/505, Including fibers55/381, Seaming, reinforcing or bag structure55/477, STRANDS OR BRISTLES WITH UNSUPPORTED OR FREE EXTREMITIES (E.G., BRUSH TYPE)66/136, Plating66/170, Articles66/194Fleece or pile typeExaminersPrimary: Prunner, Kathleen J.Attorney, Agent or FirmInternational ClassesB30B 9/02 (20060101)B30B 9/26 (20060101) B01D 46/02 (20060101) B01D 39/08 (20060101) D04B 1/00 (20060101) D04B 1/02 (20060101) AbstractA fabric filter bag, a method of making such a bag, and apparatus using such bags, in which the bag is a tube of yarn knit into stitches defining a ground and stitches defining terry loop pile extending from the ground. In accordance with the present invention, such a fabric filter bag, method of making a bag, and apparatus using a bag is improved by the inclusion of a conductive strand for conducting electrostatic charges otherwise accumulating on the fabric filter bag away from the bag so as to suppress accumulation or build-up of such charges.Other References
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