Retractable and vented pouring spout

Claim 2

A combined closure and pouring spout assembly comprising an outer closure member to be received within an opening provided in a container, the outer closure having an outwardly opening recess to receive a closure plug, an inner transverse wall in the outer closure defining a bottom for the recess and a circular aperture provided in the inner transverse wall and an elongate tube in the form of a pouring spout having inner and outer ends carried in the circular aperture, the spout having throughout a major portion of its length an outer diameter less than the diameter of the circular aperture whereby the spout may be moved, when the closure plug is removed, to an extended pouring position and to a retracted position, the spout being held captive within the circular aperture by an annular flange provided on the outer end of the spout and by an enlargement provided on the inner end of the spout with the annular flange and enlargement having outer diameters greater than the diameter of the circular aperture, and a venting arrangement provided in association with the spout to provide air ingress into the container during pouring, the spout fitting loosely within the circular aperture with the closure plug in sealing position in the outer closure providing communication between the interior of the spout and the interior of the container the closure plug being threadedly received within the outer closure and having two annular spaced apart ridges on the bottom surface thereof for reception between an annular ridge provided on the inner transverse wall of the outer closure to effect air-and-liquid-tight sealing between the closure plug and the outer closure.

Claim 3

An assembly according to claim 1, wherein the outer closure is provided with exterior threading for threading engagement with threading provided in the opening of the container.

Claim 4

An assembly according to claim 1 including a hollow collar formed integrally with the outer closure and extending inwardly from the inner transverse wall and encircling the aperture and at least one notch in the collar extending substantially the complete length of the collar.

Claim 5

An assembly according to claim 3, the enlargement provided at the inner end of the tube being of generally frusto-conical configuration to be snugly received by said hollow collar.

Claim 6

An assembly according to claim 3 wherein the venting arrangement consists of a venting aperture provided in the wall of the spout a distance from the inner end thereof greater than the longitudinal length of the collar.

Claim 7

An assembly according to claim 5, including a cover for the venting aperture provided interiorly of the tube and an inwardly directed aperture provided in the covering.

Claim 8

An assembly according to claim 1, wherein the venting arrangement includes a venting aperture provided in the wall of the spout towards the inner end thereof.

Claim 9

An assembly according to claim 1, wherein the venting arrangement includes a venting tube carried within the spout.

Claim 10

An assembly according to claim 9 wherein the venting tube is of rounded generally triangular configuration in section carried by lugs provided in the spout.

Claim 11

An assembly according to claim 1, wherein the outer surface of the annular flange on the outer end of the spout is provided with at least one ridge against which the closure plug may bear when in closed position within the outer closure.

Claim 12

A combined closure and pouring spout assembly comprising an outer closure member to be received within an opening provided in a container, the outer closure having an outwardly opening recess to receive a closure plug, an inner transverse wall in the outer closure defining abottom for the recess and a circular aperture provided in the inner transverse wall and an elongate tube in the form of a pouring spout having inner and outer ends carried in the circular aperture, the spout having throughout a major portion of its length an outer diameter less than the diameter of the circular aperture whereby the spout may be moved, when the closure plug is removed, to an extended pouring position and to a retracted position, the spout being held captive within the circular aperture by an annular flange provided on the outer end of the spout and by an enlargement provided on the inner end of the spout with the annular flange and enlargement having outer diameters greater than the diameter of the circular aperture, and a venting arrangement provided in association with the spout to provide air ingress into the container during pouring, the spout fitting loosely within the circular aperture with the closure plug in sealing position in the outer closure providing communication between the interior of the spout and the interior of the container, including a hollow collar formed integrally with the outer closure and extending inwardly from that inner transverse wall and encircling the aperture and at least one notch in the collar extending substantially the complete length of the collar, and wherein the venting arrangement consists of a venting aperture provided in the wall of the spout a distance from the inner end thereof greater than the longitudinal length of the collar.

Claim 13

A combined closure and pouring spout assembly comprising an outer closure member to be received within an opening provided in a container, the outer closure having an outwardly opening recess to receive a closure plug, an inner transverse wall in the outer closure defining abottom for the recess and a circular aperture provided in the inner transverse wall and an elongate tube in the form of a pouring spout having inner and outer ends carried in the circular aperture, the spout having throughout a major portion of its length an outer diameter less than the diameter of the circular aperture whereby the spout may be moved, when the closure plug is removed, to an extended pouring position and to a retracted position, the spout being held captive within the circular aperture by an annular flange provided on the outer end of the spout and by an enlargement provided on the inner end of the spout with the annular flange and enlargement having outer diameters greater than the diameter of the circular aperture, and a venting arrangement provided in association with the spout to provide air ingress into the container during pouring, the spout fitting loosely within the circular aperture with the closure plug in sealing position in the outer closure providing communication between the interior of the spout and the interior of the container, including a hollow collar formed integrally with the outer closure and extending inwardly from that inner transverse wall and encircling the aperture and at least one notch in the collar extending substantially the complete length of the collar, and wherein the venting arrangement consists of a venting aperture provided in the wall of the spout a distance from the inner end thereof greater than the longitudinal length of the collar.

Claim 14

An assembly according to claim 11, including a cover for the venting aperture provided interiorly of the tube and an inwardly directed aperture provided in the covering.