Patent ID: 7717298

Claim:
A barrier arrangement for a drinks container dispenser, having a reservoir ( 10 ) for drink and a cover ( 20 ) above the reservoir wherein the barrier arrangement is disposed on a peripheral portion ( 21 ) of the cover ( 20 ), wherein the peripheral portion ( 21 ) reaching over an edge portion ( 11 , 12 ) of the reservoir when the cover is closing the reservoir ( 10 ) said edge portion including at least a flange projecting radially outwardly from said reservoir ( 10 ); the barrier arrangement located at said peripheral portion ( 21 ) of the cover comprising an elongate bolt ( 30 ) having a first end, a second end, and a transversely oriented recess located between said ends, said bolt being slidably supported on the peripheral portion of the cover within a support housing formed by a guide member ( 23 ) and a cover wall ( 22 a ) that together define a compartment that houses a magnetic block ( 40 ) sized for at least partial receipt within said transversely oriented recess in the absence of a magnetic field being applied through said cover wall ( 22 a ) such that said bolt ( 30 ) can be slid between: (i) a first position wherein said magnetic block is positioned within said recess while said first end of said bolt is located below said flange thereby locking said cover onto said reservoir; and (ii) a second position wherein said magnetic block is positioned within said compartment in response to the application of a magnetic field creating an attractive force such that said first end of said bolt is spaced away from said flange thereby unlocking said cover from said reservoir.