Method for manufacturing a filtration device

Details Method for manufacturing a filtration device Method for manufacturing a filtration device

2011-07-19

2011-07-19

Aftergut, Jeff H (Department: 1746)

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

C156S169000, C210S457000

Reexamination Certificate

active

07981232

ABSTRACT:
Method for winding textile threads to filter bobbins for filtration purposes of petrochemicals, by, in a first operation, winding 4 layers laid at 30 degrees both ways, in a second operation winding 5 layers laid at 40 degrees both ways, in a third operation winding 9 layers laid at 35 degrees both ways, in a fourth and last operation winding 12 layers laid at 15 degrees one way and just with 50 degree transfer back for each layer, and repeating the first, second, third and fourth operations, the threads used thereby comprising 58% cotton, 16% acryl, 11.5% flax, 11.5% polyester, 2% polyamide, 0.6% acetate and 0.4 % viscose.

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patent: 0 489 157 (1992-06-01), None
patent: 2 097 502 (1972-03-01), None

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