B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
182/19
B01D 29/23 (2006.01)
Patent
CA 1221036
Abstract of the Disclosure The reverse flow cleaning process is initiated either automatically by a timing or pressure sensitive device, or manually, by opening an outlet which allows the flow of water, thereby creating a pressure difference. The pressure difference not only creates a reverse flow from the clean to the dirty filter side, but also moves a wiping element having a smaller inlet area than the surface of the filter across the latter surface at a controlled speed. The return of the wiper element to the original position is accomplished either by a spring or hydraulic reset element. Damping is provided to insure that the motion of the wiper is a slow, steady motion. In a special construction, the wiper element consists of a multiplicity of individual elements elastically pressed against the inside, dirty side of a hollow cylindrical filter. The wiper elements are mounted in a piston-like element which moves in response to the pressure difference carrying the wiper elements with it.
448574
Bellemann Rudolf
Diehlmann Rolf
Dobrocsi Bela
Wacker Karl F.
Joh. A. Benckiser Wassertechnik Gmbh
Kirby Eades Gale Baker
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