Trigger operated spray gun
AssigneeSpraying Systems Co.
InventorsEric Petersen, Gary Paulsen
Life of this patent
Estimating the term…
Abstract
A spray gun for dispersing pressurized liquids having a barrel portion and a handle portion, a relatively simple and compactly designed control valve in the lower end of the handle portion, and a trigger pivotably mounted and adjacent the lower end of the handle portion and extending upwardly therefrom for movement between control valve actuating and deactuating positions. The control valve has a valve body formed with three mutually perpendicular passageways and contains a valve member having a valve stem extending outwardly in generally perpendicular relation to the handle for engagement by the lower end portion of the trigger. A simple transversely moveable locking element is provided for securing the trigger in a deactuated position.
Claims20
A spray gun for dispersing pressurized liquids comprising
- a barrel portion having a discharge end and a handle portion depending from said barrel portion,
- a discharge nozzle at said barrel portion discharge end for emitting liquid from said barrel portion in a spray pattern,
- a trigger mounted for pivotal movement about a pivot axis adjacent a lower end of said handle portion, said trigger extending upwardly from said pivot axis in forwardly spaced relation to said handle portion for selected hand actuating movement while holding said handle portion between a forward deactuating position and a rearward actuating position,
- a control valve disposed in a lower end of said handle portion, said control valve including a valve body mounted in said handle portion, said valve body having a liquid inlet port for connection to a liquid supply, a valve chamber, and a liquid outlet port,
- means defining a liquid passage communicating between said valve body liquid outlet port and said barrel discharge end and said discharge nozzle,
- said inlet and outlet ports both being formed in perpendicular relation to said valve chamber in laterally offset relation to each other, and
- a valve stem mounted in said valve chamber for movement relative to said valve body, said valve stem having a portion extending outwardly and forwardly of said handle in generally perpendicular relation to said trigger at a location above said pivot axis for engagement by said trigger to selectively actuate said control valve in response to movement of said trigger from said forward position to said rearward position.
A spray gun for dispersing pressurized liquids comprising
- a housing having a barrel portion and a handle portion depending from said barrel portion, said handle portion having a liquid inlet for connection to a liquid supply and said barrel portion having a discharge end,
- a discharge nozzle at said barrel portion discharge end for emitting liquid from said barrel portion in a spray pattern,
- a trigger pivotably mounted adjacent a lower end of said handle portion extending upwardly in forwardly spaced relation thereto for selected hand actuating movement while holding said handle portion between a forward deactuating position and a rearward actuating position,
- a control valve disposed in said handle portion and being selectively actuatable in response to movement of said trigger from said forward position to said rearward position,
- a locking element mounted within said housing adjacent an upper end of said trigger for transverse movement with respect to said housing between a first position which prevents pivotable movement of said trigger from said deactuating position to said actuating position and a second position which permits pivotable movement of said trigger from said deactuating to said actuating position, and
- said locking element having a slot which upon positioning of said locking element to said first position is in transversely offset relation to said trigger such that said locking element physically blocks movement of said trigger from said deactuating position to said actuating position, and upon movement of said locking element to said second position said slot is in alignment with said trigger so as to permit movement of the upper end of said trigger through said slot upon movement of said trigger from said deactuating position to said actuating position.
A spray gun for dispersing pressurized liquids comprising
- a barrel portion and a handle portion depending from said barrel portion, said handle portion having a liquid inlet for connection to a liquid supply and said barrel portion having a discharge end,
- a discharge nozzle at said barrel portion discharge end for emitting liquid from said barrel portion in a spray pattern,
- a trigger pivotably mounted adjacent a lower end of said handle portion extending upwardly in forwardly spaced relation thereto for selected hand actuating movement while holding said handle portion between a forward deactuating position and a rearward actuating position,
- a control valve disposed in a lower end of said handle portion and being selectively actuatable in response to movement of said trigger from said forward position to said rearward position, and
- a locking element mounted adjacent an upper end of said trigger for transverse movement with respect to said trigger between a first position which prevents pivotable movement of said trigger from said deactuating position to said actuating position and a second position which permits pivotable movement of said trigger from said deactuating to said actuating position.
A spray gun for dispersing pressurized liquids comprising
- a barrel portion having a discharge end and a handle portion depending from said barrel portion,
- a discharge nozzle at said barrel portion discharge end for emitting liquid from said barrel portion in a spray pattern,
- a trigger mounted for pivotal movement about a pivot axis adjacent a lower end of said handle portion, said trigger extending upwardly from said pivot axis in forwardly spaced relation to said handle portion for selected hand actuating movement while holding said handle portion between a forward deactuating position and a rearward actuating position,
- a control valve disposed in a lower end of said handle portion, said control valve including a valve body mounted in said handle portion, said valve body having a liquid inlet for connection to a liquid supply, a valve chamber. and a liquid outlet,
- means defining a liquid passage communicating between said valve body liquid outlet and said barrel discharge end and said discharge nozzle,
- a valve stem mounted in said valve chamber for movement relative to said valve body, said valve stem having a portion extending outwardly and forwardly of said handle in generally perpendicular relation to said trigger at a location above said pivot axis for engagement by said trigger to selectively actuate said control valve in response to movement of said trigger from said forward position to said rearward position, and
- said trigger being engageable with said valve steam at a point of engagement spaced upwardly from the pivotal axis of said trigger a distance of about one-sixth of the length of said trigger.
Dependencies are inferred from the claim text.