Hand operated sprayer with automatic container vent

A manually operated liquid dispenser adapted to be attached to a container holding a liquid to be dispensed comprising

• a. component retaining body means, the bulk of which is located outside of said container when attached thereto,
• b. a dip tube depending from said body means,
• c. inlet means within said body means for admitting liquid thereinto,
• d. outlet means including a discharge orifice located at one end of the body means remote from the inlet means to dispense liquid therefrom,
• e. check valve means disposed within the component retaining body means to regulate the flow of liquid,
• f. an outwardly opening bore defined within the interior of the body means and communicating with the inlet and outlet means,
• g. a piston shiftable within said bore and defining a variable volume pumping chamber therewith,
• h. operating means, including a trigger normally actuated by the application of substantially horizontal force by the fingers thereto, for shifting the piston within the bore between a normal, non-pumping position and a pumping position.
• i. venting means extending through the body means and opening, at one end, into the bore, and
• j. a single unit providing seal means for the venting means and the pumping chamber, the seal means in normal non-pumping position preventing communication to the ambient air from the venting means and the pumping chamber thereby providing a positive closure for the container, the seal means in pumping position permitting free communication between the venting means and the ambient air.

A manually operated liquid dispenser adapted to be attached to a container holding a liquid to be dispensed comprising

• a. component retaining body means, the bulk of which is located outside of said container when attached thereto, the body means including an intake body and a trigger housing, the intake body having a circumferential groove formed therein, and the lower end of the trigger housing having an annular configuration that fits snugly within said groove,
• b. an outwardly opening bore defined within the interior of the component retaining body means,
• c. a piston shiftable within the bore and bounding a variable compartment with said bore,
• d. inlet and outlet means disposed within the component retaining body means for delivering liquid into and out of the compartment bounded by the piston and bore,
• e. operating means, including a trigger normally actuated by the application of substantially horizontal force by the fingers thereto, for shifting the piston within the bore between a normal, non-pumping position and a pumping position,
• f. venting means extending through the body means and opening, at one end, into the bore,
• g. seal means for the venting means, the seal means, in normal non-pumping position, preventing communication between the venting means and the ambient air, the seal means in pumping position permitting free communication between the venting means and the ambient air.

A manually operated liquid dispenser adapted to be attached to a container holding a liquid to be dispensed comprising

• a. component retaining body means, the bulk of which is located outside of said container when attached thereto, the body means including an intake body and a housing, for actuating means, the intake body having a circumferential groove formed therein, and the lower end of the housing for the actuating means having an annular configuration that fits snugly within said groove,
• b. an outwardly opening bore defined within the interior of the component retaining body means,
• c. a pump means shiftable within the bore and bounding a variable compartment with said bore,
• d. inlet and outlet means disposed within the component retaining body means for delivering liquid into and out of the compartment bounded by the pump means and bore,
• e. actuating means, for shifting said pump means within the bore between a normal, non-pumping position and a pumping position,
• f. venting means extending through the body means and opening, at one end, into the bore,
• g. seal means for the venting means, the seal means, in normal non-pumping position of said pump means, preventing communication between the venting means and the ambient air, the seal means in pumping position of said pump means permitting free communication between the venting means and the ambient air.