Open mesh filter element
AssigneeSeaquist Valve Company
InventorRoger K. Ufferfilge
Life of this patent
Estimating the term…
Abstract
A valve structure for a fluid dispenser primarily of the type known in the art as an aerosol dispenser incorporating a filter assembly comprising one or more filter elements each formed from an apertured, open mesh material of nylon or like synthetic fiber. At least one of the filter elements is mounted on a filter housing in the form of an auxiliary valve body attached to the primary valve body of the valve structure wherein the path of fluid flow is established from the interior of the dispenser to the valve chamber and the one or more filter elements are disposed in interruptive disposition relative to the path of fluid flow so as to cause filtering of any undesirable particles from the product or propellant as the product is being dispensed.
Claims16
A valve structure of the type primarily designed for use with a sealing washer and a stem sealer having a stem internal orifice and with a fluid dispenser, said valve structure comprising:
- an integral valve body having a sealing surface in proximity to one end of said valve body adapted for sealing with the sealing washer;
- said valve body having a valve chamber defined within said valve body adjacent said sealing surface for receiving the stem sealer, said integral valve body including orifice means disposed in fluid communicating relation between said valve chamber and the exterior of the other end of said valve body;
- said valve body configured to at least partially define a path of fluid flow, whereby fluid within the dispenser flows along said orifice means and through said valve chamber into the stem orifice upon the stem sealer being displaced relative to the sealing washer;
- a filter chamber integrally formed in said valve body adjacent said other end of said valve body;
- filter means formed from an apertured, open mesh material fixedly secured within said filter chamber of said integral valve body and disposed in interruptive relation to said path of fluid flow upstream of said orifice means, whereby fluid passing through said valve chamber from said dispenser passes through said filter means.
Dependencies are inferred from the claim text.