Abstract: An insertable, integrally molded, one-piece valve assembly for use in the intake bore of the pump of a liquid dispensing device has a body portion and a top portion which is spaced from the body portion by resilient links. The body portion is pressed into the bore a distance determined by an external stop area, and has a flow passage in which a valve seat is located. The top portion is formed to fit loosely in the bore and abuts against an internal stop area which prevents further inward movement. A compression member extends between the top portion and the body portion and has a valve plug molded on the end which engages the valve seat in normally closed valve relation.

Abstract: A child-resistant safety closure is provided for closing the outlet of a hand-operated fluid product sprayer dispenser used on a container to prevent leaks from the container during periods of non-use and to resist accidental use by children or unwary adults. The closure cannot be moved from an "outlet closed" position to an "outlet open" position without the performance of at least two discrete, predetermined definite actions by the user to first disable a lock and then to linearly or rotatably move the cap into the "outlet open" position to permit spraying or dispensing. A closing member is connected to the bottom portion of the sprayer for removably mounting the sprayer to the container and closing the same. The member and the sprayer to which it is connected cannot be removed without the performance of at least two discrete, predetermined definite actions, which actions are difficult if not impossible for young children to perform.