Fluid dispenser method and apparatus

Details Fluid dispenser method and apparatus Fluid dispenser method and apparatus

1976-10-05

1979-07-17

Reeves, Robert B.

Fluid sprinkling, spraying, and diffusing

Including supply holder for material

Moving solid surface engages material to be sprayed

222380, 222385, 222472, 222494, 222497, 239464, 239526, 239539, 239570, 239574, 239579, B65D 4734

Patent

active

041612884

ABSTRACT:
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.

REFERENCES:
patent: 2169779 (1939-08-01), Loewe
patent: 2362080 (1944-11-01), Martin
patent: 2805891 (1957-09-01), Sanborn
patent: 3187960 (1965-06-01), Gorman
patent: 3493179 (1970-02-01), Lee
patent: 3685739 (1972-08-01), Vanier
patent: 3761022 (1973-09-01), Kondo
patent: 3840157 (1974-10-01), Hellenkamp
patent: 4013229 (1977-03-01), Rohs

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