Duct seepage reduction

Details Duct seepage reduction Duct seepage reduction

2003-04-29

2010-10-12

Meeks, Timothy H (Department: 1715)

Pipes and tubular conduits

Repairing

C427S230000, C427S238000, C427S438000, C073S049800, C106S033000

Reexamination Certificate

active

07810523

ABSTRACT:
A method is provided for reducing seepage through a leak (5) in a duct (1), the leak being defined in terms of its maximum dimension xLand its maximum width in an orthogonal direction yLand the effective size of the leak being given by formula (1): SL=(x2L+y2L)1/2. A plurality of sealing elements (3) are introduced into the duct, the sealing elements having dimensions a, b and c in mutually orthogonal directions and the effective size SEof the sealing element being given by formula (2): SE=(a2+b2+c2)1/2. The sealing elements have an effective size SE, which is less than the effective size of the leak SL, so that sealing elements (3A) are drawn to the leak locality and caused, by reason of a pressure differential at that locality and attributable to the leak, to move over the leak and reduce the seepage.

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Merriam-Webster Dictionary “Streamer”.
Norwegian Official Action, Dec. 21, 2009, 4 pages.
Translation of the Official Action, Dec. 21, 2009, 1 page.

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