Extensible spouts for containers

Claim 2

A container having an opening, an elongated tubular discharge spout at least the major portion of which is disposed within said container in retracted position, said spout being longitudinally extendable outwardly through said opening to an extended position for use, and cooperating engaging means on said container and on said spout operable, upon rotation of said spout relative to said container, to secure said spout in its extended position and prevent it from being returned to retracted position.

Claim 3

A container having an opening, an elongated tubular discharge spout at least the major portion of which is disposed within said container in retracted position, said spout being longitudinally extendable outwardly through said opening to an extended position for use, said container having circumferentially extending cam means adjacent said opening, a cam follower on said spout, said follower, upon partial longitudinal extension of said spout, being engageable with said cam means and, upon subsequent rotation of said spout, being movable along said cam means to extend said spout to its extended position for use, said cam means including detent means engageable with said follower to prevent said spout from being returned to its retracted position after it has been extended as aforesaid.

Claim 4

A container having an opening, an elongated tubular discharge spout at least the major portion of which is disposed within said container in retracted position, said spout being longitudinally extendable outwardly through said opening to an extended position for use, said container having circumferentially extending cam means adjacent said opening, a cam follower on said spout, said follower, upon partial longitudinal extension of said spout, being engageable with said cam means and, upon subsequent rotation of said spout, being movable along said cam means to extend said spout to its extended position for use, said cam means including detent means engageable with said follower to prevent said spout from being returned to its retracted position after it has been extended as aforesaid.

Claim 5

The container defined in claim 2, including a cap removably secured to said spout over the outer end of the latter, said cap being removably secured to said container over the opening therein to close said opening and to seal said spout within said container in retracted position.

Claim 6

The container defined in claim 3, wherein said cap is threaded to said spout.

Claim 7

The container defined in claim 3, wherein said cap and said spout have interengaged, raised, flexible projections by means of which said cap is removably secured to said spout.

Claim 8

The container defined in claim 2, wherein cooperating means are provided on said container and on said spout to engage in the extended position of said spout and form a seal around said opening, and also to prevent the spout from being removed from the container.

Claim 9

The container defined in claim 6, wherein said spout has an annular, radially outwardly extending flange adjacent its inner end, and said cooperating means comprises annular sealing surfaces on said flange and in said container.

Claim 10

The container defined in claim 2, wherein said cam means includes an inclined surface engageable with said follower to advance said spout to its extended position upon rotation of said spout in one direction.

Claim 11

The container defined in claim 2, wherein said cam means includes an inclined surface engageable with said follower to advance said spout toward its extended position upon rotation of said spout in one direction, said detent means comprising a shoulder to which said inclined surface leads adapted to engage said follower and prevent reverse rotation of said spout.

Claim 12

The container defined in claim 2, wherein said cam means includes an inner surface adapted to be engaged by said follower to interrupt the extension of said spout, and an outer inclined surface leading circumferentially from said inner surface, said outer inclined surface being adapted to be engaged by said follower upon rotation of said spout to advance said spout toward its extended position.

Claim 13

The container defined in claim 10, wherein said detent means comprises a locking shoulder to which said outer inclined surface leads adapted to prevent reverse rotation and retraction of said spout.

Claim 14

The container defined in claim 11, wherein said cam means includes a second outer inclined surface leading circumferentially from said shoulder to a locking recess, said follower being engageable with said second outer inclined surface upon further rotation of said spout and finally with said locking recess to lock said spout in its extended position.

Claim 15

The container defined in claim 2, wherein said cam means includes a guide-lock member having an inner surface adapted to be engaged by said follower to interrupt the extension of said spout, said cam means also including a wedge-lock member having an outer inclined surface leading circumferentially from said inner surface, said follower being engageable with said outer inclined surface to advance said spout toward its extended position upon rotation of said spout in one direction, said detent means comprising a first recess to which said upper inclined surface leads adapted to engage said follower and prevent reverse rotation of said spout, said guide-lock member having an outer inclined surface leading circumferentially from said first recess to a second recess, said follower being engageable with said second-mentioned outer inclined surface upon further rotation of said spout in said one direction and finally with said second recess to lock said spout in its extended position.

Claim 16

The container defined in claim 13, wherein said spout has an annular, radially outwardly extending flange adjacent its inner end, annular sealing surfaces on said flange, and annular surfaces in said container surrounding said opening and adapted to sealingly engage said sealing surfaces on said flange when said spout is extended as aforesaid.

Claim 17

The container defined in claim 14, including a cap removably secured to said spout over the outer end of the latter, said cap being removably secured to said container over the opening therein to close said opening and to seal said spout within said container in retracted position.

Claim 18

A container having an opening, an elongated tubular discharge spout at least the major portion of which is disposed within said container in retracted position, said spout being longitudinally extendible outwardly through said opening to an extended position for use, a cap removably secured to said spout over the outer end of the latter, said cap being releasably secured to said container over the opening therein to close said opening and to seal said spout within said container in retracted position, said cap being adapted to be grasped in the fingers to extend said spout as aforesaid without touching said spout with the fingers.

Claim 19

A container having an opening, an elongated tubular discharge spout at least the major portion of which is disposed within said container in retracted position, said spout being longitudinally extendible outwardly through said opening to an extended position for use, a cap removably secured to said spout over the outer end of the latter, said cap being releasably secured to said container over the opening therein to close said opening and to seal said spout within said container in retracted position, said cap being adapted to be grasped in the fingers to extend said spout as aforesaid without touching said spout with the fingers.