Container cap with self-retracting spout

Claim 2

A closing cap with a self-retracting spout, for use with a container, said cap comprising: a cylindrical cap body having in its top a central keyway diametrically crossing said top and of rectangular section, one end of said keyway being closed off and the cap body having a center opening; a spout having a vertical drive pin, said spout comprising a flow channel and being operable to slide in said central keyway; said spout being shaped as a rectangular prism the two ends thereof being rounded and the sides thereof being provided with guiding means, said spout containing an internal channel consisting of two sections, one section going longitudinally through the prism from the front to the second section perpendicular thereto and located at the back of said spout and terminating at the bottom face of said spout; and a revolving cover having a window, and a specially configured guiding ramp located towards the front of said cover, said ramp cooperating with said drive pin of the spout in the central keyway as said cover is rotated; said cover and said cap body having catching means for locking the cover onto the cap body, and the flow channel of said spout being so designed that the inlet to the channel aligns with the outlet from a container when in use position; wherein the back of said spout is hollowed out to form a leaf spring.

Claim 3

A closing cap with a self-retracting spout, said cap comprising: a cylindrical cap body having in its top a central keyway diametrically crossing said top end of rectangular section; one end of said keyway being closed off and the cap body having a center opening; a spout having a vertical drive pin, said spout comprising a flow channel and being operable to slide in said central keyway; said spout being shaped as a rectangular prism the two ends thereof being rounded and the sides thereof being provided with guiding means, said spout containing an internal channel consisting of two sections, one section going longitudinally through the prism from the front to the second section perpendicular thereto and located at the back of said spout and terminating at the bottom face of said spout; and a revolving cover having a window, and a specially configured guiding ramp located towards the front of said cover, said ramp cooperating with said drive pin of the spout in the central keyway as said cover is rotated; wherein said guiding ramp is an internal part of the center plate of the cover, extending from the periphery of the cover to the center of the cover, said ramp being shaped so that by cooperating with the drive pin on the spout when the cover is rotated, the spout at first remains stationary in said keyway, until the front of said spout is entirely visible through said window, and thereafer slides out beyond the keyway until said channel inlet aligns with the cap body and a container outlet; said cover and said cap body having catching means for locking the cover onto the cap body, and the flow channel of said spout being so designed that the inlet to the channel aligns with the outlet from a container when in use position.

Claim 4

A closing cap with a self-retracting spout, said cap comprising: a cylindrical cap body having in its top a central keyway diametrically crossing said top end of rectangular section; one end of said keyway being closed off and the cap body having a center opening; a spout having a vertical drive pin, said spout comprising a flow channel and being operable to slide in said central keyway; said spout being shaped as a rectangular prism the two ends thereof being rounded and the sides thereof being provided with guiding means, said spout containing an internal channel consisting of two sections, one section going longitudinally through the prism from the front to the second section perpendicular thereto and located at the back of said spout and terminating at the bottom face of said spout; and a revolving cover having a window, and a specially configured guiding ramp located towards the front of said cover, said ramp cooperating with said drive pin of the spout in the central keyway as said cover is rotated; wherein said guiding ramp is an internal part of the center plate of the cover, extending from the periphery of the cover to the center of the cover, said ramp being shaped so that by cooperating with the drive pin on the spout when the cover is rotated, the spout at first remains stationary in said keyway, until the front of said spout is entirely visible through said window, and thereafer slides out beyond the keyway until said channel inlet aligns with the cap body and a container outlet; said cover and said cap body having catching means for locking the cover onto the cap body, and the flow channel of said spout being so designed that the inlet to the channel aligns with the outlet from a container when in use position.

Claim 5

A cap as in claim 2, wherein the distance between the two ends of the cover ramp and the distance between the drive pin and the spout inlet are both substantially equal to the radius of the cover.

Claim 6

A cap as in claim 3, wherein the inside of the cover plate is provided with a center nipple directed to the inside of said cover.

Claim 7

A cap as in claim 4, wherein the container outlet through the cap body is provided with a sealing bush.