Electronic trigger grip battery operated modular sprayer
An improved pressurized sprayer is provided. The pressurized sprayer includes a support frame, a modular power center, and a spray wand. The support frame defines an internal reservoir, and the modular power center includes a pump, a controller, and a battery, the pump being fluidly coupled to the internal reservoir via a quick-release connector. The spray wand is fluidly coupled to the pump via a discharge hose and includes an inverted pistol grip having a push-button trigger and a thumbwheel potentiometer for controlling flow-rate or pressure. The readily accessible nature of these controls allows the operator to meet the needs of a variety of applications, with all controls at a natural forefinger and thumb rest point. The heavier elements of the spray wand remain below the forearm and hand of the operator. This configuration enhances the ergonomic feel of the spray wand by maintaining a natural upright trigger position.
1 . A trigger grip assembly comprising:
a housing including a first side portion and a second side portion, the first side portion and the second side portion being peripherally joined to each other to define a base and a handle, the base defining a lengthwise axis that extends between a front opening and a rear opening, the handle being angled forward relative to the lengthwise axis of the base;
a push-button trigger protruding from a forward facing surface of the handle;
a thumbwheel potentiometer disposed in a gap in a rearward facing surface of the handle;
a first fitting recessed within the rear opening of the housing; and
a second fitting adjacent to the front opening of the housing.
2 . The trigger grip assembly of claim 1 , wherein the first fitting is a barbed fitting and wherein the second fitting is a threaded fitting.
3 . The trigger grip assembly of claim 1 , further comprising:
a spray tube coupled to the first fitting; and
a spray nozzle coupled to the spray tube.
4 . The trigger grip assembly of claim 3 , wherein the thumbwheel potentiometer is rotatable for controlling a flow-rate of fluid being discharged from the spray nozzle.
5 . The trigger grip assembly of claim 3 , wherein actuating the trigger causes the discharge of fluid from the spray nozzle.
6 . The trigger grip assembly of claim 1 , wherein the first side portion and the second side portion comprise opposing first and second halves of the housing.
7 . The trigger grip assembly of claim 6 , further including a plurality of fasteners joining the first side portion of the housing to the second side portion of the housing.
8 . The trigger grip assembly of claim 6 , wherein the first side portion of the housing is adhesively joined to the second side portion of the housing.
9 . The trigger grip assembly of claim 1 , wherein the handle is rigidly joined to the base and is angled forward relative to the base at an angle of between 40 degrees and 80 degrees.
10 . The trigger grip assembly of claim 1 , wherein the base contains a barrel that is externally threaded on opposing ends thereof for attachment to the first and second fittings.