초록 ▼

A self-closing dispenser device having a generally rigid valve support with a two-way passageway for dispensing in one direction and return air flow in the other direction, a diaphragm on one side of the valve support, a valve member on the other side of the valve support, porting in the diaphragm,

A self-closing dispenser device having a generally rigid valve support with a two-way passageway for dispensing in one direction and return air flow in the other direction, a diaphragm on one side of the valve support, a valve member on the other side of the valve support, porting in the diaphragm, a valve stem connected to the diaphragm member and extending through the two-way passageway, and having a valve closure surface and a dispensing opening in the valve member, normally closed by the valve closure surface and movable outwardly for ejection of material, and the valve stem and closure surface being movable inwardly away to permit re-entry of air.

대표청구항 ▼

A self-closing dispenser device comprising; a valve support formed of generally rigid material, and defining two-way passageway means for flow of material therethrough in one direction and return air flow in the other direction; a resilient diaphragm member on one side of said valve support; a resil

A self-closing dispenser device comprising; a valve support formed of generally rigid material, and defining two-way passageway means for flow of material therethrough in one direction and return air flow in the other direction; a resilient diaphragm member on one side of said valve support; a resilient valve member on the other side of said valve support; porting means in said diaphragm member, whereby said material may flow between said diaphragm member and said valve support; a valve stem connected to said diaphragm member and extending through said two-way passageway means and having a valve closure surface; a dispensing opening in said valve member, said opening being normally closed by contact with said valve closure surface and said valve member being movable outwardly away from said valve closure surface for ejection of material, and said valve stem and closure surface being movable inwardly away from said valve member to permit re-entry of air, and, stop means on said valve support for limiting movement of said valve stem, and of said valve member as aforesaid.