CAP WITH SOUND SIGNALLING DEVICE Russian patent published in 2002 - IPC

FIELD: packing and sealing. SUBSTANCE: invention relates to devices designed for sealing vessels by cap and it can be used for containers with medicines, drinks or perfumes. Proposed cap has audio message playback unit arranged in cap body and connected with loudspeaker and power source, and switch. Lower wall of body is made for deformation at mechanical contact with support insert installed in inlet hole of vessel. Simultaneously opening of switch under action of spring is provided. Spring is installed for acting onto switch at deformation of lower wall of housing. With cap removed from vessel, it restores its initial form with closing of switch. EFFECT: improved reliability of device. 12 cl, 3 dwg