SINGLE USE VALVES

摘要

A single use valve structured to allow only one fluid or gas or powder filling or extraction operation of a container such that neither a subsequent refilling nor a subsequent extraction operation can be performed. The single use valve may be used for extraction of ink from, or filling of ink to, a security ink container.

主权项

1. A single use valve having a valve member moveable from a closed position that sealingly closes the valve such that fluid is not able to pass through the valve, to an open position to allow fluid to pass through the valve, characterized by comprising a locking member arranged to move with the valve member moving to the open position to be placed in a locked position to allow for blocking the valve member after the valve member has moved back from the open position to the closed position, thereby configuring the valve into a permanently closed state that prevents the passage of fluid through the valve after a single motion of the valve member from the open position to the closed position.