Filter apparatus and distributor plate therefor
US5154823A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1991 |
| Grant date | Oct 13, 1992 |
| Priority date | — |
| Expiry date | Oct 30, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2201/4084
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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 d…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.