Liquid purification or separation – Processes – Separating
Patent
1987-02-02
1989-01-03
Fisher, Richard V.
Liquid purification or separation
Processes
Separating
210232, 210402, 277 1, 277 9, 277 87, B01D 3306
Patent
active
047955724
ABSTRACT:
The novel sealing means of this invention generally comprises a replaceable, annular-shaped sealing device having a substantially L-shaped radial cross-sectional configuration for effecting the indirect fluid-tight sealing of an entry passageway formed at the entrance to either of the channel means. The L-shaped radial cross section of the sealing device comprises an axially-extending base section capable of extending within and effectively sealing off, in a fluid-tight manner, either of the entry passageways. The sealing device also includes a radially-extending leg section capable of facilitating the effective sealing of either of the entry passageways and for maintaining the sealing device in a substantially fixed position within the entry passageway means by the securing engagement of the inner radial surface of the leg section with the outer end of either of the respective trunnion and the inner vat insert element. The above-described fluid-tight sealing of the entry passageway means, and in turn the channel means, is completed by the securing engagement of the lower axial surface of the base section and the outer surface of either of the respective stationary discharge pipe and trunnion.
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patent: 4248716 (1981-02-01), LaValley
patent: 4417734 (1983-11-01), Sundberg
patent: 4608170 (1986-08-01), LaValley
Evans Linda S.
Fisher Richard V.
LaValley Industrial Plastics, Inc.
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