Sipper cap with a reciprocally movable nozzle

Abstract

Sipper cap ( 10 ) includes a cap section ( 30 ) with a housing, a nozzle ( 50 ) reciprocally movable in the housing and an overcap ( 70 ). The sipper cap is adapted to provide a releasable single point seal between the housing and the nozzle capable of preventing passage of liquid through the sipper. The cap section ( 30 ) has a neck section ( 38 ) that provides a vertical guide for movement of the nozzle member. The point seal is formed between the end of angle surface ( 44 ) of an inwardly directed extension ( 43 ) and sealing face ( 57 b ) on the outer wall of the nozzle ( 50 ). The extension ( 43 ) also engages with a retention part ( 56 ) on a seal piercing part ( 54 ) to prevent removal of the nozzle ( 50 ) from the sipper cap. The overcap ( 70 ) and cap section ( 30 ) can each have a tamper evident ring ( 71, 34 ).

1 . A sipper cap for engagement with a container, the sipper cap including a housing and a nozzle reciprocally movable in the housing wherein the sipper cap is adapted to provide a releasable seal between the housing and the nozzle capable of preventing passage of liquid through the sipper cap. 
   
   
       2 . The sipper cap according to  claim 1  wherein the seal is a single point seal. 
   
   
       3 . The sipper cap according to  claim 1  wherein the releaseable seal is a single point seal which is formed by interaction of a concentric extension from the housing that is adapted to interact with a sealing face about the nozzle. 
   
   
       4 . The sipper cap according to  claim 3  wherein the concentric extension includes an angled surface that interacts directly with a sealing face on the nozzle. 
   
   
       5 . The sipper cap according to  claim 4  wherein the angled surface is at an angle of between about 30° and about 70° from the central longitudinal axis of the housing. 
   
   
       6 . The sipper cap according to  claim 5  wherein the angled surface at an angle of between about 45° and about 60°. 
   
   
       7 . The sipper cap according to  claim 6  wherein the angled surface is at an angle of about 55°. 
   
   
       8 . A sipper cap including a nozzle and a housing wherein the nozzle is reciprocally movable in the housing from a closed position to an open position and, when in the closed position, a seal is created by an interaction between a concentric extension from the housing and the external surface of the nozzle. 
   
   
       9 . The sipper cap according to  claim 8  wherein the sipper cap includes an induction seal at the point of interaction between the concentric extension and the nozzle surfaces. 
   
   
       10 . The sipper cap according to  claim 8  wherein the concentric extension includes an angled surface that interacts directly with sealing face on the nozzle. 
   
   
       11 . The sipper cap according to  claim 10  wherein the angled surface is at an angle of between about 30° and about 70° from the central longitudinal axis of the housing. 
   
   
       12 . The sipper cap according to  claim 8  wherein the nozzle includes at least two windows for passage of fluid through the sipper cap, the passage of fluid through the window being preventable by the interaction of the concentric extension from the housing and the nozzle. 
   
   
       13 . A sipper cap according to  claim 1  wherein the cap includes an induction seal at the point of interaction between the concentric extension and the nozzle and optionally another induction seal at the point of contact between the container and the sipper cap. 
   
   
       14 . A sipper cap for attachment to a container, the sipper cap including a nozzle and a housing, wherein the nozzle is reciprocally movable within the housing from a first to a second open position, and from the second open position to a closed position, and wherein the nozzle is restricted in movement from the first open position to the second open position, and to and from the closed position, and wherein when the nozzle is in the closed position a seal is created by an interaction between a concentric extension from the housing, and the external surface of the nozzle preventing passage of liquid through the sipper cap. 
   
   
       15 . The sipper cap according to  claim 14  wherein the container does not have a seal independent of the sipper cap and the container is purchased with the sipper cap having the nozzle in the closed position. 
   
   
       16 . The sipper cap according to  claim 14  wherein the container does have a seal independent of the sipper cap and the container is purchased with the sipper cap having the nozzle in the first open position. 
   
   
       17 . The sipper cap according to  claim 14  wherein the concentric extension includes an angled surface that interacts directly with sealing face on the nozzle. 
   
   
       18 . The sipper cap according to  claim 17  wherein the angled surface is at an angle of between about 30° and about 70° from the central longitudinal axis of the housing. 
   
   
       19 . The sipper cap according to  claim 18  wherein the angled surface is at an angle of about 55° to the central longitudinal axis of the sipper cap. 
   
   
       20 . A housing for a sipper cap nozzle, the housing including a concentric extension with an angled end surface, the extension adapted to interact with the nozzle at the angled end surface to provide a releasable seal preventing passage of liquid through the nozzle and sipper cap. 
   
   
       21 . The housing according to  claim 20  wherein the concentric extension includes an angled surface that interacts directly with sealing face on the nozzle. 
   
   
       22 . The housing according to  claim 21  wherein the angled surface is at an angle of between about 30° and about 70° from the central longitudinal axis of the housing. 
   
   
       23 . The housing according to  claim 22  wherein the angled surface is an angle of between about 45° and about 60°. 
   
   
       24 . The housing according to  claim 23  wherein the angled surface is at an angle of about 55°. 
   
   
       25 . A sipper cap for attachment to a container, the sipper cap including a housing and a nozzle, the nozzle being reciprocally movable within the housing from an open position allowing passage of liquid to a closed position preventing passage of liquid from the container, wherein the nozzle includes a retention part adapted to prevent removal of the nozzle from the housing. 
   
   
       26 . The sipper cap according to  claim 25  wherein the retention part is at the end of the nozzle which, when the sipper cap is attached to the container, is adapted to be positioned adjacent the container. 
   
   
       27 . The sipper cap according to  claim 25  wherein the nozzle includes a nozzle housing adapted to allow passage of liquid therethrough, the nozzle housing having an open end and a partially closed end, wherein the nozzle also includes an arm extending from the partially closed end of the nozzle housing through the open end of the nozzle housing, the arm including at least one wing extending from the end of the arm distal the partially closed end of the nozzle and being capable of preventing removal of the nozzle from the sipper cap. 
   
   
       28 . A nozzle for a sipper cap, the nozzle including a housing adapted to allow passage of liquid therethrough, the housing having an open end and a partially closed end, wherein the nozzle also includes an arm extending from the partially closed end through the housing and extending from the open end of the nozzle, the arm including at least one wing extending from the end of the arm distal the partially closed end of the nozzle and being capable of preventing removal of the nozzle from the sipper cap. 
   
   
       29 . The nozzle according to  claim 28  wherein the wing extends at an angle of between about 70° and about 110° from the central longitudinal axis of the arm. 
   
   
       30 . The nozzle according to  claim 28  wherein the wing extends from the arm at an angle of about 90° from the longitudinal axis of the arm. 
   
   
       31 . The nozzle according to  claim 28  wherein the arm including two wings and the end of the arm distal the partially closed end of the nozzle is substantially a “T” shape. 
   
   
       32 . The nozzle according to  claim 28  wherein the arm extends along the central longitudinal axis of the nozzle. 
   
   
       33 . A container including a sipper cap according to  claim 1 . 
   
   
       34 .- 36 . (canceled)