Portable airless sprayer

摘要

A portable airless sprayer comprises a housing, a motor, a pump, a spray tip and a trigger. The motor is mounted to the housing. The pump is mounted to the housing and is driven by the motor. The spray tip assembly receives pressurized fluid from the pump. The trigger is configured to actuate the spray tip assembly and activate the motor. A method of operating a portable airless sprayer comprises moving a lever over a stroke, displacing a valve pin, and activating a motor. The valve pin is displaced with the lever to actuate a spray valve. The motor is activated with the lever to drive a pump that provides fluid to the spray valve.

主权项

1. A handheld airless fluid dispensing device comprising:
a housing body configured to be carried and fully supported by an operator of the handheld airless fluid dispensing device during operation; a reciprocating piston fluid pump disposed within the housing body and comprising at least two pumping chambers configured to be pumped out of phase by at least one piston; a drive element coupled to the housing body and connected to the reciprocating piston fluid pump to displace the at least one piston; a switch configured to activate the drive element; a spray orifice fluidly connected to outlets of the pumping chambers; a pin to close the spray orifice; and a lever connected to the dispensing device to actuate the switch and retract the pin from the orifice.