Abstract: There is provided an airless paint spray pump wherein the pump is a double acting piston pump having an inlet communicating with a source of paint, a motor for driving the pump, a pressure controller for controlling the pressure of the pressurized paint delivered by the pump, and a filter for filtering the paint delivered by the pump. The pump includes features which increase the accessibility of the components thereof, prevent the incorrect installation of the seal packings in the pump cylinder, and allow the assembly of the piston in the pump cylinder properly aligned with the cylinder so as not to damage the seal packings therein.

Abstract: There is provided an airless paint spray pump wherein the pump is a double acting piston pump having an inlet communicating with a source of paint, a motor for driving the pump, a pressure controller for controlling the pressure of the pressurized paint delivered by the pump, and a filter for filtering the paint delivered by the pump. The pump includes features which increase the accessibility of the components thereof, prevent the incorrect installation of the seal packings in the pump cylinder, and allow the assembly of the piston in the pump cylinder properly aligned with the cylinder so as not to damage the seal packings therein.

Abstract: There is provided an airless paint spray pump wherein the pump is a double acting piston pump having an inlet communicating with a source of paint, a motor for driving the pump, a pressure controller for controlling the pressure of the pressurized paint delivered by the pump, and a filter for filtering the paint delivered by the pump. The pump includes features which increase the accessibility of the components thereof, prevent the incorrect installation of the seal packings in the pump cylinder, and allow the assembly of the piston in the pump cylinder properly aligned with the cylinder so as not to damage the seal packings therein.

Abstract: There is provided an airless paint spray pump wherein the pump is a double acting piston pump having an inlet communicating with a source of paint, a motor for driving the pump, a pressure controller for controlling the pressure of the pressurized paint delivered by the pump, and a filter for filtering the paint delivered by the pump. The pump includes features which increase the accessibility of the components thereof, prevent the incorrect installation of the seal packings in the pump cylinder, and allow the assembly of the piston in the pump cylinder properly aligned with the cylinder so as not to damage the seal packings therein.

Abstract: There is provided a turret member for a reversible airless spray tip unit having an easily readable identification device or indicia for the particular turret member imprinted on a tag or label attached to a securing device or attaching ring secured to the handle of the turret member. A plurality of turret members are carried on a keychain by their attachment rings for their ease of accessibility to the operator.

Abstract: There is provided a reversible spray tip unit for an airless spray gun having an axially rotatable cylindrically shaped turret member with the spray tip nozzle arranged in a diametric fluid bore therein, the turret member being disposed in a complementary shaped bore of a housing and arranged transverse to the flow of paint, and a saddle seal received axially in the housing and having a cylindrically shaped sealing face mating with the cylindrical shape of the turret member at the diametric fluid bore housing the spray tip nozzle. Upon assembly of the disassembled reversible spray tip unit, the saddle seal is quickly inserted into the housing and accurately oriented so that its sealing face is aligned with the cylindrically shaped bore in the housing for the turret member by means of an insertion/orientation tool which is adapted to be keyed to the fluid bore of the saddle seal.

Abstract: A saddle seal and washer insertion tool for airless paint spray tip assemblies having a housing containing a reversible tip holder of the type having cylindrical barrel with a handle formed of a polymer, located on and positioned generally transversely of the barrel, the housing having a longitudinal through bore for permitting delivery of paint, and a transverse bore for receiving the barrel of the tip holder, the insertion tool formed integrally with an end of the handle, the tool having a first portion with a width conforming to an internal diameter of the washer and a second portion extending beyond the first portion with a width conforming to a diameter of a bore in the saddle seal such that the washer can be received on the first portion and the saddle seal received on the second portion for alignment and installation into the housing.

Abstract: A spray tip housing includes a turret member having a stem portion and a handle, an axial passageway having an outlet and an inlet, and a seal insert operatively disposed in the axial passageway. The handle is configured to enter the outlet of the axial passageway to push the seal insert at least partially through the axial passageway. The axial passageway has a rectangular cross section and the handle is tapered and includes a rectangular cross section that is sized to enter the axial passageway. The turret member is movable between a spraying position and a cleaning position, and the handle is made of soft plastic and includes direction indicia for indicating the position of the turret member. The direction indicia includes an arrow-shaped portion for pushing the seal from the axial passageway.

Abstract: There is provided a reversible spray tip or nozzle used with a spray gun or like device for hydraulically atomizing and spraying liquids such as paint. The spray tip includes a plastic housing having a forward extending spray tip guard integral therewith, a cylindrically shaped rotatable turret member diametrically received for rotation in the housing and having a diametric bore therethrough for receipt of a spray tip insert, and an elongated seal insert axially received in the housing upstream from the turret member. A securing nut rotatably mounted to the housing at the spray gun end thereof secures the reversible spray tip to the discharge end of the spray gun. The enhanced sealing effectiveness of the reversible spray tip permits effective sealing of the assembly by finger tightening of the securing nut.

Abstract: A spray tip guard for a hydraulically operated air-less spray gun which is generally Y-shaped having forwardly extending diverging ears arranged parallel to the fan spray of the spray pattern issuing from the spray tip of the spray gun. A pair of forwardly extending projections are provided at the apex of the diverging ears adjacent to and on either side of the stream of high pressure liquid emerging from the spray tip so as to provide an obstacle to the approach of the stream of high pressure liquid prior to its being atomized.

Abstract: There is provided an electrically conductive plastic tip guard for a hydraulic or airless spray gun adapted for the hydraulic atomization and spraying of fluid such as paint. The electrically conductive plastic tip guard when in contact with a grounded surface dissipates to ground the static electricity generated by the passage of the fluid through the spray tip.