Abstract: A self-contained, hand-held paint spray gun apparatus having a paint reservoir on the gun and a turret assembly having a reversible tip for spraying paint from the reservoir through the tip and a swirl chamber adapter located between the gun and turret assembly. The tip is reversible between a SPRAY position and a CLEAN position to enable a user of the paint spray gun to rapidly and conveniently clear an obstruction in the tip and continue spraying without removing the tip. The swirl chamber adapter has a generally planar face opposing a swirl valve in the gun and forming a swirl chamber upstream of the turret assembly and has a centrally located bore extending from the generally planar face to the outlet of the adapter.

Abstract: A fluid delivery system includes a pump operably coupleable to a source of fluid. A reciprocating electromagnetic actuator is coupled to the pump and has a coil that when energized causes the actuator to drive the pump. Coil current sensing circuitry is configured to provide an indication of current flowing in the coil. A controller is coupled to the coil current sensing circuitry and is configured to calculate a coil drive parameter based upon a plurality of coil current indications from the coil current sensing circuitry. Coil drive circuitry is coupled to the controller and is configured to supply current to the coil based on the coil drive parameter.

Abstract: A paint spraying system having a paint reservoir (16) remote from a spray gun (12) of the type which draws paint to the gun using vacuum (6, 7). A paint pump (14) delivers paint under positive pressure to the paint gun and a paint regulator (28) in or associated with the paint gun delivers the paint to the gun as drawn by vacuum by the gun through the regulator. An over-pressure relief valve (70) may be used to limit the positive pressure delivered by the pump. A mechanical switch may be used to select a SPRAY or CLEAN mode for the operation of the paint regulator to allow flushing of the paint regulator.

Abstract: A handheld painting device is provided. In one example, the device includes an internal paint reservoir, an internally fed paint applicator configured to apply a liquid coating of paint to a surface, and a pump assembly configured to draw paint from the internal paint reservoir and pump the paint to the paint applicator. In one example, the device includes an internally fed paint applicator assembly configured to apply a liquid coating of paint to a surface, an elongate handle, and a paint pump assembly disposed between the paint applicator assembly and the handle, and configured to deliver paint to the paint applicator assembly.

Abstract: A hand-held, battery powered liquid applicator having an on-board reservoir. An electric motor drives a piston in the reservoir via a pinion gear member and rack gear. A gear shifter may disengage the pinion gear member from the rack gear. A battery compartment may have a door has recess to enable a user to grasp a dry cell located farthest from the door. The rack gear may have modified profile teeth at the end of travel to allow the pinion gear member to slip when the piston is urged past the end of travel. The piston may have a length substantially equal to a characteristic length of the reservoir. Liquid may be drawn into the reservoir by powered or manual retraction of the piston and liquid may be delivered from the reservoir to an applicator head by powered or manual motion of the piston into the reservoir.

Abstract: A paint roller apparatus is provided. In one example, the paint roller apparatus is configured to apply paint to a surface and includes a roller arm and a paint roller rotatably mounted on the roller arm about a roller axis. The paint roller has an end and a paint applicator surface. The paint roller apparatus includes a roller guard having at least one painting feature for applying paint to the surface. The roller guard is selectively movable between first and second positions. The first position comprises the painting feature disposed adjacent the end of the roller on a first side of the roller axis and the second position comprises the painting feature disposed adjacent the end of the roller on a second side of the roller axis.

Abstract: A handheld painting device is provided. In one example, the device includes an internally fed paint applicator configured to apply paint to a surface, a paint reservoir, a plunger assembly movable within the paint reservoir to deliver paint to the paint applicator, and a spring assembly configured to apply a substantially constant force on the plunger assembly over a range of motion of the plunger assembly.

Abstract: A reversible, multiple spray tip spray gun tip assembly includes a tip holder and a turret. In one embodiment, the tip holder has a turret opening and a fluid spray passage that is in communication with the turret opening. The turret has a barrel including a plurality of spaced apart spray tips and a handle to rotate the barrel within the turret opening. Either the tip holder or the turret includes one or more projections while the other of the tip holder or the turret includes a cam surface with which the one or more projections slideable engage such that rotating the turret relative to the tip holder causes the turret to translate relative to the tip holder and to align each of the spray tips with the fluid spray passage in a spray position and a clear position.

Abstract: A plural component pump system is provided for delivering plural liquid components at a selected ratio. The pump system includes a first brushless DC motor configured to drive a first pump that pumps a first liquid component to an output and a second brushless DC motor configured to drive a second pump that pumps a second liquid component to the output. The pump system includes a first controller configured to control the first motor and a second controller configured to control the second motor. The pump system also includes a communication interface between the first controller and the second controller. The first controller is configured to send a signal to the second controller using the communication interface and the second controller is configured to control the second motor based on the signal to deliver the first and second liquid components to the output at the selected ratio.

Abstract: A self-contained, hand-held paint spray gun apparatus having a paint reservoir on the gun and a turret assembly having a reversible tip for spraying paint from the reservoir through the tip and a swirl chamber adapter located between the gun and turret assembly. The tip is reversible between a SPRAY position and a CLEAN position to enable a user of the paint spray gun to rapidly and conveniently clear an obstruction in the tip and continue spraying without removing the tip. The swirl chamber adapter has a generally planar face opposing a swirl valve in the gun and forming a swirl chamber upstream of the turret assembly and has a centrally located bore extending from the generally planar face to the outlet of the adapter.

Abstract: A container holder in a fluid delivery system is provided. In one example, a portable fluid sprayer includes a sprayer housing, a sprayer handle for carrying the portable fluid sprayer above a support surface, and a base for supporting the portable fluid sprayer on the support surface. The base is free of wheels. The fluid sprayer includes a fluid container having a handle and an attachment feature receiving the fluid container handle. The attachment feature and the base support the fluid container with the handle of the fluid container at an angle with respect to vertical when the portable fluid sprayer is carried in an upright position by a user using the sprayer handle.

Abstract: A hand-held apparatus for spraying texture material includes a body having a handle, a texture material hopper mounted on the body, and a nozzle extending from the body for spraying texture material. The apparatus also includes an air source connection component operable to connect and disconnect a source of air to and from the body. The air source connection component comprises a first connection structure on the body that is configured to receive a corresponding second connection structure associated with the air source and secure the second connection structure to the body by rotating the second connection structure with respect to the body.

Abstract: The present disclosure generally relates to coating material applicators and more specifically, but not by limitation, to an apparatus for applying a coating material such as stain to a surface such as a deck, characterized by a generally planar surface with intentional gaps between elements (e.g., boards of a deck). In one example, a coating material applicator is provided. The coating material applicator is configured to apply a coating material to a structure having a generally planar surface formed by members having opposed surfaces separated by one or more gaps. The coating material applicator includes a base layer having an applicator surface for applying a coating material to the generally planar surface and a removable implement for applying the coating material to the opposed surfaces.

Abstract: Apparatus for securing and selectively releasing a piston pump from a drive assembly including two collar segments, with one segment fixed to the drive assembly and the other segment movable only linearly transversely with respect to a longitudinal axis of the piston pump, with an over-center mechanism to lock the movable segment via a pair of links. The piston is engageable and disengageable with a drive mechanism in the drive assembly via a pair of interengaging surfaces, with one C-shaped member receiving the other member which is T-shaped.