ES157366U - Tube for handling fluids in laboratory. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Fluid manipulation tube in the laboratory, characterized by being formed by a cylindrical piece of unbreakable plastic material, such as polypropylene or similar, closed at one end and open on the opposite, in which it has a transverse inclined or an annular inner rib having little protrusions, which engage with another similar, opposite relief, formed at the end of an internal sealing body provided in a closure cap, whose outer skirt determines with the wall of that body an annular space in which it is it houses the mouth of the tube itself, foreseeing a closing phase by simple friction of the mouth of the tube in said space, with a certain tolerance between it and the stopper, which avoids the violent separation of the latter when the assembly is subjected to high temperatures, whose loose closing takes place without detriment to the subsequent safety coupling between both parts, for the purpose of transp orte or any other, by simple manual pressure, determining the reciprocal engaging of the opposing relieves thereof, the inner sealing body of the seat serving cap being susceptible for a secretion sampling rod or similar to be analyzed in the same tube, to which end the mentioned body presents in its base, towards the outside, an axial closed mouthpiece of origin, that flush with the edge of the cap and that once cut allows the insertion of said rod. (Machine-translation by Google Translate, not legally binding)