ES260113U - Interchangeable conical coupling (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Interchangeable conical coupling, which being intended to serve as a means of joining two glass tubes for use in work of chemical laboratories and the like, is essentially characterized in that the sections to be coupled are slightly conical and inverted, in such a way that the outer section of the two couplers has in proximity to its free edge, and on its inner surface, with an annular channel with a half-round section in which an elastic sealing O-ring is positioned that will make annular contact against the outer surface of the section internal coupling, while the latter in proximity to its free edge is also provided, on its external surface of another channel equal to the aforementioned in which a second elastic sealing gasket is positioned which will contact against the internal surface of the external section to couple; it being provided that on said end section a flange or plastic bushing is threaded, which uppermost has a square step in which an open plastic washer or gasket is positioned, which on the opposite side is rounded to be positioned in an annular recess or step. And curvilinear provided in the inner tube, in the area of enfranque of the tube itself with its slightly conical section. (Machine-translation by Google Translate, not legally binding)