Method of using multiple stressed sealing plugs to filter polyme

Details Method of using multiple stressed sealing plugs to filter polyme Method of using multiple stressed sealing plugs to filter polyme

1974-09-24

1977-03-01

Spear, Jr., Frank A.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 77, 210 97, 210184, 210387, 210401, B01D 2902, B01D 3332, B01D 3518, B01D 3304

Patent

active

040103919

ABSTRACT:
A sealing port for a filtering device of the type disclosed and claimed in U.S. Pat. No. 3,471,017 is described. The sealing port has two separate sections in uninterrupted communication with one another for sealing purposes but thermally isolated from one another. Both sections are provided with both heating means and coolng means which are controllable to permit the performance of a process sequence wherein a stressed barrier plug (i.e., a sealing plug formed while subject to the hydrostatic pressure of a substance being filtered) is formed in the innermost section (i.e., the section next adjacent the filtering passage), the stressed barrier plug is then maintained while stresses in the substance filling the outer section are relaxed by heating the outer section, a substantially unstressed sealing plug is then formed in the outer section by cooling to solidification the substance therein, and then the stressed barrier plug is softened to enable the unstressed plug in the outer section to be moved for advancing the filter. This sequence is then repeated for further advancement of the filter. By this means difficult substances even exhibiting expansion on cooling can be caused to form sealing plugs capable of ready advancement through the sealing ports.

REFERENCES:
patent: 3471017 (1969-10-01), Kalman
patent: 3645399 (1972-02-01), Kalman
patent: 3672507 (1972-06-01), Paull, Jr.
patent: 3855126 (1974-12-01), Smith
patent: 3856674 (1974-12-01), Kalman
patent: 3856680 (1974-12-01), Elmore

Affiliated with

Also associated with

Rating

Method of using multiple stressed sealing plugs to filter polyme does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of using multiple stressed sealing plugs to filter polyme, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of using multiple stressed sealing plugs to filter polyme will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1354516