초록 ▼

A fluid pump dispenser includes a dispenser trigger which may be located in pivotable engagement with the dispenser housing and pump piston after shipment. The initial actuation of the trigger moves the pump piston and a container conduit, engaged thereto, to open a container vent shipping seal prov

A fluid pump dispenser includes a dispenser trigger which may be located in pivotable engagement with the dispenser housing and pump piston after shipment. The initial actuation of the trigger moves the pump piston and a container conduit, engaged thereto, to open a container vent shipping seal provided by mating surfaces on the conduit and the container cap. Fluid carried from the container by the conduit enters the pump chamber through a central orifice in the piston. A flexible member located on the piston functions as an inlet check valve for the conduit and as a piston ring. The fluid dispenser also includes a nozzle structure having a flexible member which functions as an outlet check valve and O-ring seal, and which cooperates with a threaded nozzle cap to vary the discharge pattern of the dispenser responsive to twisting adjustment of the cap.

대표청구항 ▼

An apparatus for dispensing fluids from a container comprising: a housing; a trigger; means for pivotably mounting said trigger to said housing including a member configured in an open spiral on one of said housing and said trigger and a peg on the other one of said housing and said trigger configur

An apparatus for dispensing fluids from a container comprising: a housing; a trigger; means for pivotably mounting said trigger to said housing including a member configured in an open spiral on one of said housing and said trigger and a peg on the other one of said housing and said trigger configured for disposition within the interior space defined by said spiral shaped member; a pump chamber having a piston movable through a limited stroke responsive to said trigger for varying the volume of said pump chamber, whereby the limits of the piston stroke limit the pivoting movement of said trigger; an outlet valve having a valve member for blocking communication with said chamber responsive to the pressure in said chamber; a nozzle cap for adjustably contacting said outlet valve member to vary the discharge pattern of the fluid dispensed; inlet conduit means attached to Said piston and communicating with the container, providing a venting passage for the container selectively blocked by mating surfaces on said conduit means and container responsive to movement of the piston; and a flexible member slidably contacting the wall of said pump chamber for blocking communication between said pump chamber and said inlet conduit means responsive to the pressure in said chamber.