Container closure cap with metering appliance

Details Container closure cap with metering appliance Container closure cap with metering appliance

G - Physics

01

F

222/10

G01F 11/26 (2006.01) B65D 47/24 (2006.01)

Patent

CA 1302367

Abstract of the Disclosure A device for metering a fluid product comprises a closure cap threaded onto the neck of a container and acting on the stem of a valve member to lift the latter off a seat formed at the lower end of a cylindrical wall fixedly inserted into the neck of the container against the action of a resilient member. A metered dose of the product is dispensed by turning the container upside down and unscrewing the closure cap by then filled with the metered dose. In the inverted position the fluid product contained in the container flows into a chamber defined by the cylind- rical wall via the opened valve member and a passage associated to the resilient element. The flow of the fluid product into the chamebr is stopped by the engage- ment of the valve member with its seat as the closure cap is being unscrewed. In another embodiment, an intermediate element having a screw-threaded neck portion and a seat for the valve member is secured to an annular rim of a container. A cylindrical wall formed integrally with the seat is in sealingly slid- ing engagement with a cylindrical wall formed integrally with the bottom wall of the closure cap. A tubular element formed integrally with the cylindrical wall protects the resilient element from contact with the fluid to be dis- pensed. A metered dose of the product is dispensed by turning the container upside down and unscrewing the clos- ure cap. The screw-threaded peripheral wall of the closure cap remains clean during filling and emptying the metering chamber defined by the cylindrical wall 16.

541368

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