Filter with porous media and electrostatic and magnetic plates
First Claim
1. A filter for processing contaminated fluids, said filter comprising a pair of rod electrodes, an assembly of perforated plates separated by porous filter media and in threaded engagement with said pair of rod electrodes, said plates being arranged in successive sets of plates, including at least a first electrostatic plate electrically coupled to a first of said rod electrodes and electrically insulated from a second of said rod electrodes, at least a second electrostatic plate electrically coupled to said second rod electrode and electrically insulated from said first of said rod electrodes, and a magnetic plate electrically insulated from both of said rods a cylindrical housing receiving said assembly, and means for introducing fluid into one end of said housing and removing said fluid from the other end of said housing.
2 Assignments
0 Petitions
Accused Products
Abstract
A fluid filter is designed primarily but not exclusively to filter spent fluids which may contain particulate contaminants. The filter has an assembly which may be slid into or out of a canister housing for manufacture, repair, or replacement. The assembly is a stack of porous filter media separated by perforated metal plates. The metal plates may be arranged in sets, comprising positive and negative electrostatic plates followed by magnetic plates. Or, the metal plates may be arranged in a sequence tailored for the electrical conductivity of a given fluid. A pair of rod electrodes are threaded through holes in the various plates and porous filter media. One rod electrode is connected to all positive plates. The other rod electrode is connected to all negative electrostatic plates.
26 Citations
22 Claims
- 1. A filter for processing contaminated fluids, said filter comprising a pair of rod electrodes, an assembly of perforated plates separated by porous filter media and in threaded engagement with said pair of rod electrodes, said plates being arranged in successive sets of plates, including at least a first electrostatic plate electrically coupled to a first of said rod electrodes and electrically insulated from a second of said rod electrodes, at least a second electrostatic plate electrically coupled to said second rod electrode and electrically insulated from said first of said rod electrodes, and a magnetic plate electrically insulated from both of said rods a cylindrical housing receiving said assembly, and means for introducing fluid into one end of said housing and removing said fluid from the other end of said housing.
- 14. A fluid filter comprising an elongated tubular housing having a slide-in assembly removably contained therein, said assembly comprising a stack of porous filter media separated by perforated plates, the porous filter media having a porosity such that said fluid may be pumped from one end of said housing through said filter media and said perforations of said plates the opposite end of the housing, a pair of electrode rods threaded through and holding said assembly together, the individual electrode rods of said pair, respectively making electrical contact with individually associated ones of at least some of said perforated plates, said pair of rods forming two terminals to which a two terminal voltage source may be coupled with each terminal of said source being individually associated with corresponding ones of said electrode rods for electrostatically energizing the perforated plates connected thereto, and a plurality of perforated magnetic plates interspersed throughout said assembly.
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22. A fluid filter comprising an elongated tubular housing having a slide-in assembly removably contained therein, said assembly comprising a stack of porous filter media separated by perforated plates, the porous filter media having a porosity such that said fluid may be pumped from one end of said housing through said filter media and said perforations of said plates to the opposite end of the housing, a pair of electrode rods threaded through and holding said assembly together, the individual electrode rods of said pair, respectively making electrical contact with alternate ones of at least some of said perforated plates, said pair of rods forming two terminals to which a two terminal voltage source may be coupled with each terminal of said source being individually associated with corresponding ones of said electrode rods for electrostatically energizing the perforated plates connected thereto, a plurality of perforated magnetic plates interspersed throughout said assembly, said plates being distributed throughout said assembly in a sequence of an electrostatic plate of one polarity, an electrostatic plate of another polarity, and a magnetic plate, a removable end cap sealing each end of said housing in order to contain said fluid within said housing while giving access for sliding said assembly into and out of said housing, at least one end of each of said rods forming half of a connector, and means comprising another half of said connector on said one end for securing said end caps and slide-in assembly in a sealed housing relationship.
Specification