The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 28, 2002
Filed:
Apr. 18, 1999
Michael W. Johnson, Minneapolis, MN (US);
Jeffrey J. McKenzie, Watertown, MN (US);
Entegris, Inc., Chaska, MN (US);
Abstract
An insert and method of use for conjoining plastic tubular end portion to form a beadless weldment. The insert comprises a first core portion having a longitudinal axis and a first circumferential surface, and a second tubing contact portion having a longitudinal axis, a second inwardly facing surface and a third circumferential surface, with the second and third surface in concentric relation to each other, and the second tubing contact portion operatively connected to the first core portion. The first core portion and the second tubing contact portion are longitudinally movable relative to each other between a first conjoining configuration and a second removal configuration. In the first conjoining configuration, the first circumferential surface of the first core portion is oriented so that it is in supporting contact with the second inwardly facing surface of the second tubing contact portion, and the second tubing contact portion is further oriented so that the third circumferential surface of the second tubing contact portion is in supporting contact with the interior surfaces of the tubular end portions to be conjoined. In the second removal configuration, the first circumferential surface of the first core portion is oriented so that it is not in supporting contact with the second inwardly facing surface of the second tubing contact portion.