Liquid purification or separation – With repair or assembling means
Patent
1991-10-30
1992-10-13
Silverman, Stanley S.
Liquid purification or separation
With repair or assembling means
210282, 210542, 210542, B01D 3530
Patent
active
051548232
ABSTRACT:
A filter apparatus and distributor plate therefor of the quick-change type which are easily fabricated from plastic material by injection molding are disclosed. The distributor plates which are flangeless can accommodate one, two, three or more canisters. The canisters which are neckless have two prong-like arcuate member with flanges. The prong-like members extend through the distributor plate and the canisters are secured to the distributor plate by locking knobs which have mating flanges for engaging the flanges on the prong-like members. Opposing ports in the canisters and distributor plate are seal by O-rings which are housed on the flat top surface of the canisters. For filter apparatuses having more than one canister, the distributor is preferably made in two parts, namely a main body part and an insert part which are bonded into a single unitary part by sonic welding. Since the filter apparatuses of this invention have canisters that do not have necks, problems associated with seals around ports on necks are circumvented. Likewise, since the filter apparatuses of this invention have distributor plates that do not have flanges, problems associated with damage to flanges on distributor plates are circumvented. The plate-like configuration of the distributor plates and locking knobs facilitate injection molding and reduce the amount of plastic required and post injection molding machining.
REFERENCES:
patent: 3540594 (1970-11-01), Sanderson
patent: 3846626 (1969-12-01), Close
patent: 4192750 (1980-03-01), Elfes et al.
patent: 4735716 (1988-04-01), Petrucci et al.
patent: 5035797 (1991-07-01), Janik
Hur Ryan K.
Ma Jack
Logan F. Eugene
Nessler C.
Silverman Stanley S.
Woon-Hawk Engineering Plastics, Inc.
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