Lance Dallas Johnson

US Patent:

6632356, Oct 14, 2003

Filed:

Aug 1, 2001

Appl. No.:

09/920488

Inventors:

Matthew Jon Hallan - Minneapolis MN
Jon E. Johnson - Plymouth MN
Lance Dallas Johnson - Eden Prairie MN

Assignee:

Dow Global Technologies Inc. - Midland MI

International Classification:

B01D 6300

US Classification:

2103216, 210652, 21032176, 21032178, 21032185, 21032187, 96 9

Abstract:

A separation end cap adapted for connecting adjacent separation elements is provided. The end cap may be located at the distal ends of a separation element and is adapted for connection with a permeate tube located within the separation element. In one embodiment the end cap includes an inner hub for receiving an O-ring to seal against an inner hub of an end cap on an adjacent separation element. The inner hub of the end cap may be spin-welded to the outer surface of the permeate tube. A locking structure on an outer hub of the end cap co-acts with a locking structure on an end cap of an adjacent separation element to releaseably lock the end caps and, therefore, adjacent separation elements. The locking structure preferably provides a predetermined axial force on the O-ring to seal the connection between permeate tubes of adjacent separation elements. The locking structure may also provide audible and/or visual feedback that the locking of adjacent end caps has been achieved.

US Patent:

20080308504, Dec 18, 2008

Filed:

Oct 15, 2007

Appl. No.:

11/872214

Inventors:

Matthew J. Hallan - Minneapolis MN, US
Jon E. Johnson - Plymouth MN, US
Martin H. Peery - Bloomington MN, US
Lance D. Johnson - Eden Prairie MN, US

International Classification:

B01D 35/30

US Classification:

210741, 210235

Abstract:

A loader for moving a filter element between loaded and unloaded positions with respect to a pressure vessel is provided. The loader includes a connection section associated with a loader section. The connection section is operative to be secured in coaxial alignment with the pressure vessel. The loader section is operative to receive a filter element and move the filter element between the loaded and unloaded positions. The loader section includes a cradle assembly for supporting a filter element and a carriage assembly operative to engage the filter element and move it between the loaded and unloaded positions.