Bag filter with thermoplastic tape-sealed sewn seam

Details Bag filter with thermoplastic tape-sealed sewn seam Bag filter with thermoplastic tape-sealed sewn seam

1992-01-31

1992-10-20

Hart, Charles

Gas separation

Flexible or collapsible bag type

Seaming, reinforcing or bag structure

55382, 55502, 55528, B01D 4602

Patent

active

051566613

ABSTRACT:
A bag filter comprising at least one sheet of a filter medium, preferably a polypropylene high dirt capacity filter medium, formed into a bag configuration with an opening, an inside surface, an outside surface, and at least one seam formed at adjoining filter medium portions which have been sewn together, wherein said seams are sealed with a thermoplastic tape that has been heat-sealed to the adjoining filter medium portions. A method of preparing such a bag filter is also provided herewith.

REFERENCES:
patent: 3419151 (1968-12-01), Smith et al.
patent: 3422602 (1969-01-01), Janson
patent: 4540625 (1985-09-01), Sherwood
patent: 4589894 (1986-05-01), Gin et al.
patent: 4959045 (1990-09-01), Hartley et al.
patent: 4969999 (1990-11-01), Riddell

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