ES257131U - Dispenser dispenser of liquid or pastoso products (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Dispensing dispenser of liquid or pasty products, of the type comprising: means for coupling to the container enclosure of the product to be dispensed; a defining cylinder of a pumping chamber, integral with said coupling means and capable of communicating with a suction duct through a check valve; a piston slidable inside said cylinder, extended by a hollow shank, open at its ends and capable of communicating with an expulsion duct; elastic means located inside the pumping chamber; and sympathetic control means of said ejection conduit, an axial part of which is externally adjusted to the end section of said stem, said axial part being slidable inside a jacket coaxial with said cylinder, characterized in that the axial part of said the control means and the end section of said rod are threadedly connected, so that the rotation of said control means is allowed, said axial part projecting with respect to the upper mouth of said rod, thereby configuring a chamber in which bottom part is a valve seat configured in the mouth of said rod and in the upper part of which there are recesses projections arranged on the surface of said axial part, being included in said chamber a sealing body capable of being applied to said valve seat and apt to be retained inside the camera by said incoming projections, being provided on the other hand an element guide for the axial movement of said rod whose internal cross section has a configuration that is in correspondence with the external cross section of a section of the rod so as to prevent the rotation of said rod; and arranging the external surface of said axial part of means complementary to others located on the internal surface of said sleeve that only allow an axial displacement of the control means sufficient to produce the axial displacement of the plunger, in a certain angular position of said means of control with respect to the sleeve, all this in order that when a certain angular displacement of the control means is achieved on the one hand that said control means can not actuate said piston and on the other hand, that by threaded from said axial part to the end section of said rod, the dimensions of said chamber are reduced, so that said internal projections promote the application of said sealing body to said valve seat, whereby said expulsion conduit is left inside the dispenser. (Machine-translation by Google Translate, not legally binding)