US 4,356,848 A · Dispenser assembly

Abstract

A dispenser assembly has been devised for the transfer of flowable materials from one container to another and is characterized in particular by the construction of a dispenser spout which is adapted to be releasably secured to a tubular extension projecting from the access opening of the supply container. The spout is comprised of an end closure having an open support adapted to be releasably inserted into the tubular extension such that the closure is spaced from the end of the tubular extension and the open support permits the passage of materials from the supply container. A movable sleeve in telescoping relation to the tubular extension is normally urged in a direction closing the passage formed by the open support outwardly of the tubular extension. When the spout is inserted into an access opening for a container to be filled, the movable sleeve is engaged by the surrounding edge of the access opening and retracted in a direction to open the passage for escape of material from the supply container into the container to be filled.

Claims20

Dependent claims

In a dispenser apparatus adapted for controlling the passage of flowable material from a container wherein said container includes a generally tubular member projecting outwardly from said container with the inner surface of said tubular member in communication with the interior of said container and said tubular member terminating in an open end, the improvement comprising:

a dispenser spout coupled to said tubular member including an end closure open support means mounting said end closure in coaxial, spaced relation to said open end of said tubular whereby to define a continuous open space between said end closure and the interior of said container which is bounded by said tubular member so that said inner surface of said tubular member remains in direct communication with the interior of said container;
and
a sealing member in the form of a movable sleeve disposed in telescoping relation to said tubular member for movement between a closed position covering the open space between the open end of said tubular member and said end closure and an open position retracted away from said end closure so as to uncover the open space between said end closure and the open end of said tubular member, and bias means engageable with said sealing member and operative to normally urge said sealing member into the closed position.

In a dispenser apparatus adapted for controlling the passage of flowable material between a first supply container and a second container to be filled, said second container provided with an access opening and a valve element positioned in said access opening and operative to normally close said access opening and said first container includes a generally tubular member projecting outwardly from said first container with its inner surface in communication with the interior of said first container, the improvement comprising:

a dispenser spout coupled to said tubular member including an end closure dimensioned for insertion through the access opening in said second container to depress said valve element away from said access opening, open support means detachably mounting said end closure in coaxial, spaced relation to said open end of said tubular member whereby to define a continuous open space between said end closure and the interior of said container which is bounded by said tubular member so that said inner surface of said tubular member remains in communication with the interior of said first container;
and
a sealing member in the form of a movable sleeve disposed in outer telescoping relation to said tubular member for movement between a closed position covering the open space between the open end of said tubular member and said end closure, and an open position retracted away from said end closure so as to uncover the open space between said end closure and the open end of said tubular member, bias means engageable with said sealing member and operative to normally urge said sealing member into the closed position, and retracting means on said sealing member engageable with said second container when said end closure is inserted through the access opening of said second container so as to overcome the urging of said bias means and cause movement of said sealing member toward the open position whereby to permit transfer of materials between said first and second container.

Dependencies are inferred from the claim text.

Dispenser assembly

Life of this patent

Dispenser assembly

Life of this patent

Abstract

Claims20