Filler spout with both a valve member and a secondary shutter and with an actuator element between them

Abstract

A filler spout comprising a tubular body having mounted therein a valve member extending in register with a valve seat, and a secondary shutter disposed downstream from the valve member and connected thereto, the body including a constriction in register with the secondary shutter, an internal magnetic actuator element being connected to the valve member and being associated with external actuator means arranged to move the internal element between a position in which the valve member is closed and a position in which the valve member is open, wherein the internal actuator element is mounted between the valve member and the secondary shutter, and the tubular body includes means giving access to the internal actuator element.

1 . A filler spout comprising a tubular body having mounted therein a valve member extending in register with a valve seat, and a secondary shutter disposed downstream from the valve member and connected thereto, the body including a constriction in register with the secondary shutter, an internal magnetic actuator element being connected to the valve member and being associated with external actuator means arranged to move the internal element between a position in which the valve member is closed and a position in which the valve member is open, wherein the internal actuator element is mounted between the valve member and the secondary shutter, and the tubular body includes means giving access to the internal actuator element. 
     
     
         2 . A spout according to  claim 1 , wherein the internal element and the secondary shutter are arranged so as to allow the valve member to remain closed while the internal element and the secondary shutter are not attached to the spout. 
     
     
         3 . A spout according to  claim 1 , wherein the internal actuator element is connected to the secondary shutter by releasable attachment means, and the constriction is fitted to the tubular body by releasable attachment means. 
     
     
         4 . A spout according to  claim 2 , wherein the internal actuator element is connected to the valve member by releasable attachment means and/or the tubular body includes a detachable segment in register with the internal actuator element. 
     
     
         5 . A spout according to  claim 1 , wherein the internal element includes at least one permanent magnet and the external actuator means comprise:
 at least one permanent magnet magnetically coupled with the permanent magnet of the internal element; and   movement means for moving the permanent magnet of the external actuator means.   
     
     
         6 . A spout according to  claim 5 , wherein the internal element comprises a support having portions that are adjacent to a wall defining the tubular body and portions that are set back from said wall, the element including a permanent magnet in each of its portions adjacent to the wall. 
     
     
         7 . A spout according to  claim 6 , wherein the support is of rectangular cross-section with short sides forming the portions adjacent to the wall. 
     
     
         8 . A spout according to  claim 7 , wherein the wall of the tubular body presents an outline that is circular. 
     
     
         9 . A spout according to  claim 5 , wherein the external actuator means comprise a linear electromagnetic actuator having a rod connected at one end to a crank that is mounted on a structure secured to the body to pivot about an axis perpendicular to the body and that possesses an opposite end provided with a fork engaged on an annular slider that is mounted on the body and on which the permanent magnet rests. 
     
     
         10 . A spout according to  claim 9 , wherein the external actuator means comprise an abutment that is adjustable in position along the tubular body in order to define a bottom position for the slider. 
     
     
         11 . A spout according to  claim 5 , wherein the permanent magnet of the external actuator means is annular in shape and surrounds the body. 
     
     
         12 . A filler spout according to  claim 1 , wherein the secondary shutter and the constriction presents relative dimensions and relative positioning such that when the valve member is closed the secondary shutter presents clearance relative to the constriction that is just sufficient to retain a liquid contained in the body between the valve member and the secondary shutter by means of capillarity. 
     
     
         13 . A spout according to  claim 1 , wherein the internal element is connected to the valve member by a coupling member presenting axial lost motion. 
     
     
         14 . A spout according to  claim 13 , wherein the coupling member also presents radial lost motion.