B - Operations – Transporting – 05 – B
Patent
B - Operations, Transporting
05
B
222/76
B05B 11/00 (2006.01) F04B 43/02 (2006.01)
Patent
CA 1052747
INVENTOR Walter H. Wesner By Thomas W. Brennan TITLE: MANUALLY OPERATED, TRIGGER ACTUATED DIAPHRAGM PUMP DISPENSER ABSTRACT OF THE DISCLOSURE: A manually operated dispensing device for a container holding a quantity of liquid is disclosed. The device has an internal chamber and a flexible, elastomeric diaphragm-like cover on at least one side of the chamber in a component re- taining body. Associated inlet and outlet valves, which valves may be separated or integral with the diaphragm and body, and conduits are included whereby liquid from a supply there- of in the container is drawn up into the chamber when the diaphragm is flexed under stress. The diaphragm is operatively associated with a trigger device, the actuation of which flexes and stresses the diaphragm in a direction to decrease the chamber volume. Liquid which is present in the chamber is displaced and pressurized in a pumping action, forcing the outlet or discharge valve to open and the inlet valve to close allowing the liquid to flow into the outlet or discharge conduit and be dispensed from the device in a spray. Alternate application and relief of the above described flexing or stressing action of the diaphragm by alternate actuation and release of the trigger causes the inlet and outlet valves to alternately open and close, draw liquid into the chamber and dispense it therefrom.
263560
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