APPARATUS AND METHOD FOR COUPLING TUBING TO CHROMATOGRAPHIC COLUMN
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United States of America Patent
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Issued Date -
Aug 10, 2017
app pub date -
Apr 26, 2017
filing date -
Oct 29, 2010
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Abstract
A method for coupling a tubing to a liquid chromatography column comprises: passing an end of the tubing through a coupling apparatus comprising: (i) at least one chamber; (ii) a first spring within the at least one chamber configured to transmit a spring force to the tubing; (iii) a second spring within the at least one chamber; and (iv) a deformable sealing member configured to receive a second force from the second spring; inserting the tubing end into a receptacle of an end fitting of the column; and moving the coupling apparatus towards the chromatography column such that the first spring urges the tubing into the receptacle whereby a pressure of the tubing end against the end fitting exceeds a maximum operating fluid pressure of the column and, further, whereby the second spring causes the deformable sealing member to form a fluid seal between the column and the receptacle.
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