US 2015/0174598 A1Published application

Spray gun for use with a pressure washer

AssigneeTechtronic Outdoor Products Technology Limited

InventorSven Eschrich

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Abstract

A spray gun for use with a pressure washer including a body with a nozzle and a handle. A trigger is coupled to the body and pivotable relative to the handle. A conduit extends through the nozzle and defines a fluid outlet. A valve housing defines a fluid inlet and includes a first chamber, a second chamber, and a valve seat including an aperture. A piston includes a valve member moveably disposed within the first chamber and a linkage extending between the trigger and the valve member. A biasing mechanism is positioned within the chamber and biases the valve member such that at least a portion of the valve member is retained within the aperture. Actuation of the trigger displaces the valve member and the linkage against the bias of the biasing mechanism to selectively allow fluid to flow from the inlet to the outlet through the aperture.

Claims27

Dependent claims

A spray gun for use with a pressure washer, the spray gun comprising:

a body including a nozzle and a handle;
a trigger coupled to the body and pivotable relative to the handle;
a conduit extending through the nozzle and defining a fluid outlet;
a valve housing coupled to the conduit and defining a fluid inlet, the valve housing including a first chamber spaced apart from a second chamber and a valve seat including an aperture separating the two chambers;
a piston including a valve member and a linkage, the valve member moveably disposed within the first chamber and the linkage extending between the trigger and the valve member;
a biasing mechanism positioned within the first chamber;
wherein the trigger is pivotable between a first position, in which the biasing mechanism biases the valve member such that at least a portion of the valve member is retained within the aperture in the valve seat, and a second position, in which the valve member is spaced apart from the valve seat against the bias of the biasing mechanism;
and
wherein pivotal movement of the trigger between the first position and the second position selectively determines an amount of fluid that passes from the fluid inlet to the fluid outlet.

6 more elements

A pressure washer for pressurizing and spraying fluid from a source of fluid, the pressure washer comprising:

a base including at least,
a base fluid inlet configured to connect to the source of fluid,
a pump including a base fluid outlet, and
a spray gun including:
a body including a nozzle and a handle;
a trigger coupled to the body and pivotable relative to the handle;
a conduit extending through the nozzle and defining a spray gun fluid outlet;
a valve housing coupled to the conduit and defining a spray gun fluid inlet, the valve housing including a first chamber spaced apart from a second chamber and separated by a valve seat including an aperture;
a piston including a valve member and a linkage, the valve member moveably disposed within the chamber and the linkage extending between the trigger and the valve member;
a biasing mechanism positioned within the chamber and configured to bias the valve member such that at least a portion of the valve member is retained within the aperture in the valve seat;
a hose to provide fluid communication from the base fluid outlet to the spray gun fluid inlet;
wherein actuation of the trigger displaces the valve member and the linkage against the bias of the biasing mechanism to selectively allow fluid to flow from the source to the outlet through the aperture.

9 more elements

Dependencies are inferred from the claim text.