Liquid purification or separation – With repair or assembling means
Patent
1994-02-10
1995-08-22
Dawson, Robert A.
Liquid purification or separation
With repair or assembling means
210455, 2104935, 21049701, 292327, 55502, B01D 2708
Patent
active
054437210
ABSTRACT:
Mounting assemblies for filter cartridges include a sealing bolt having a threaded shank portion for being threadably engaged with one (upper) end of an interior apertured filter cartridge support post. A head portion of the bolt allows it to be turned manually by a suitable tool to assist in threadably interconnecting the shank and post. The other (lower) end of the support post is rigidly connected (e.g., via welding) to a lower external sealing cup-flange which sealingly bears against a lower end gasket associated with the filter cartridge. The sealing bolt is further provided with an upper sealing cup-flange positioned concentrically around the shank portion immediately below the head portion of the sealing bolt. An O-ring seal is embedded in the lower surface of the head portion so as to sealingly bear against the upper sealing cup-flange when the sealing bolt is threadably tightened with respect to the support post. The upper cup-flange is maintained in close proximity, but with slight clearance space (e.g., less than about 1/16"), to the O-ring seal by means of a stationary retaining ring seated in an annular groove in the shank portion of the sealing bolt.
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Kelada Maher I.
Siberts Bruce J.
BASF Corporation
Dawson Robert A.
Walker W. L.
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