Chapin Manufacturing, Inc.

Cahpin Manufacturing, Inc.

James W Campbell

James R Fontaine

Donald R Hillhouse

Jeffrey C McGiveron

Cap for a sprayer tank

A fluid dispensing system provides a sprayer. The system has a container with liquid fluid, such as used in lawn and garden weed control and fertilization. The sprayer has a handle containing a spring engine and a pump for liquid from the container. The spring engine has a flat spring having a spring band extending from two coils wound on two shafts. One of the coils is manually wound by a crank connected to a shaft on which the coil is connected. The other shaft is connected to the pump by a rotary cam driver. Liquid is sucked by the pump into a pump chamber during part of a cycle of rotation of the other shaft when the coils are unwound and the liquid is pumped out of the chamber during the other part of the cycle of rotation to a sprayer head on the sprayer handle.

Spring engine driven fluid dispensing system

Bird feeder

Sprayer tank

Tank for a backpack sprayer

Shoulder portion of a sprayer tank and cap

Swivel assembly

Shower head assembly

A reservoir pump assembly for use with a container having a fill opening and an interior includes an annular, elongate reservoir casing configured for being inserted into the fill opening of the container and for being disposed substantially entirely within the interior of the container. The reservoir casing defines a pressure chamber configured for containing fluid under pressure. An annular, elongate guide cylinder is disposed substantially entirely within the pressure chamber and defines an inlet orifice and an outlet orifice. The outlet orifice interconnects the guide cylinder and the pressure chamber. The inlet orifice interconnects the guide cylinder and the interior of the container. An inlet valve is associated with the inlet orifice, and an outlet valve is associated with the outlet orifice. An elongate pump rod is disposed partially within the guide cylinder and is configured for reciprocating movement therein. The pump rod has a first end and a second end. The first end is disposed within the guide cylinder, and the second end extends from the guide cylinder. A plunger is attached to the first end and is configured for sealingly engaging an inside surface of the guide cylinder. The pump rod is movable in a first direction to draw fluid from the interior of the container into the guide cylinder and movable in a second direction to expel fluid from the guide cylinder into the pressure chamber. A discharge tube is disposed partially within the pressure chamber and defines a passageway for the fluid to exit the pressure chamber.

Reservoir pump

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Akron, NY, United States of America

James W Campbell