Support for backflushable filter media

Details Support for backflushable filter media Support for backflushable filter media

1980-01-24

1981-09-22

Spitzer, Robert H.

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

55498, 55521, 210490, 210492, 2104932, 210510, B01D 2706, B01D 2932

Patent

active

042908892

ABSTRACT:
This invention comprehends a new and unique means for preventing the crowns of a backflushable filter element unit from splitting which has heretofore been caused by the cyclic action of the cleaning and backflushing. A layer of staple material is positioned adjacent the outer layer of filter media to prevent bellowing or ballooning. An additional staple layer may be positioned adjacent the inner layer of filtered media to provide additional support. With both staple layers in position on both sides of the filter media, the media is firmly captured and the crowns will not split.

REFERENCES:
patent: Re27466 (1972-08-01), Rosaen et al.
patent: 2593293 (1952-04-01), Giaugue
patent: 2675127 (1954-04-01), Layte
patent: 2837214 (1958-06-01), Kasten
patent: 3007579 (1961-11-01), Pall
patent: 3058593 (1962-10-01), Gruner
patent: 3321088 (1967-05-01), Williamitis
patent: 3696592 (1972-10-01), Engleman
patent: 3994810 (1976-11-01), Schaeffer
patent: 4075106 (1978-02-01), Yamazaki
patent: 4089783 (1978-05-01), Holyoak
patent: 4104170 (1978-08-01), Nedza
patent: 4114794 (1978-09-01), Storms
patent: 4169059 (1978-09-01), Storms
patent: 4172797 (1979-10-01), Robichaud et al.
patent: 4181514 (1980-01-01), Lefkowitz et al.

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