Abstract: A texture spray gun having an air passageway (29) and a texture material passageway (28) in a handle (14) of the gun do) and a selectively removable screw to convert the gun from a non-air bleed configuration to an air bleed configuration and an improved air valve (22) providing a minimum air flow regardless of the setting of the air valve (22), preventing texture material from clogging an air path at the outlet of the gun.

Abstract: A paint pump and cart having a movable carriage to enable tilting of the paint pump secured to the carriage via a pivot mechanism without tilting the remainder of cart. A latching mechanism having a spring biased pin received in one of a pair of apertures provides selective retention of the carriage in an operating or loading position and the latching mechanism is operable to release the carriage to move between the operating and loading positions.

Abstract: A paint pump and cart having a movable carriage to enable tilting of the paint pump secured to the carriage via a pivot mechanism without tilting the remainder of cart. A latching mechanism having a spring biased pin received in one of a pair of apertures provides selective retention of the carriage in an operating or loading position and the latching mechanism is operable to release the carriage to move between the operating and loading positions.

Abstract: A texture spray pump unit (100) having a tank (140) with an outlet for providing texture material to a pump (120), for delivery to a texture spray gun. The spray pump unit (100) also has an air source (180) for providing power to the pump (120) and air to deliver the texture material from the gun. A frame supports the tank (140), air source (180) and pump (120). The tank (140) is removable from the frame, and has a self closing valve to block leakage from the tank (140) when removed from the frame. The valve may have a pair of helper springs urging the valve closed. Mating portions on the frame and tank (140) guide engagement of a tank outlet with a pump inlet tube.

Abstract: A paint pump and cart having a movable carriage to enable tilting of the paint pump secured to the carriage via a pivot mechanism without tilting the remainder of cart. A latching mechanism having a spring biased pin received in one of a pair of apertures provides selective retention of the carriage in an operating or loading position and the latching mechanism is operable to release the carriage to move between the operating and loading positions.

Abstract: A multistage turbine having one or more input stage fan blades formed of aluminum and having one or more output stage fan blades formed of steel. One or more intermediate stages may be formed of aluminum or steel or a combination thereof.

Abstract: An accessory cart having a J-shaped frame for removable mounting of a spray gun to convert a conventional airless paint sprayer into a line striper to paint lines on parking lots, curbs, warehouse floors and other pavement surfaces, and which can alternately be used in conjunction with a traditional line striper in cramped spaces or between parked cars, and which is easily converted from a 3-wheeled device to a 2-wheeled device for painting curved lines, and which permits adjustable positioning of the spray gun at a desired location on the cart to optimize the spray pattern in a particular application.

Abstract: Improved method for cleaning a pump, fluid hose, and spray gun is provided by, for example, repeatedly changing the flow rate of the cleaning fluid pumped through the system to generate turbulence or increased turbulence and increased frictional resistance for enhanced cleaning action. A pressure control can cyclically vary the speed of the pump motor and pump connected thereto to generate the turbulence. The pumping cycle can alternate between a first and second power level and at a desired time interval for each speed. With a suitable solvent as the pumped fluid, the turbulence that is generated by the cyclical pumping action causes an increase in the scrubbing action of the solvent to quickly loosen residual material in the fluid passageways.

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: 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 liquid pumping, handling and spraying system for liquid compositions and especially those liquid coating compositions having a suspension of metal particulate therein which tends to settle out of suspension of metal particulate therein which tends to settle out of suspension quite rapidly and which includes metal particulate having an affinity for adherence to metal surfaces. A fluid supply system is provided which accomplishes continuous agitation of the liquid composition to sprayed to maintain the metal particulate thereof in properly entrained suspension and even distribution with the liquid carrier fluid and which permits the use of low cost, lightweight containers for the liquid supply. A packingless pump is provided for pressurized delivery of the liquid composition from the supply container to a packingless spray gun.

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.

Abstract: Method and apparatus for recovering leaked fluid or directing fluid flow or propagation through utilization of negative pressure pulses occurring in a pressurized fluid system. The invention has particular application in double acting hydraulic fluid motors where leakage of hydraulic fluid past the output shaft seal may be efficiently collected and redirected into the pressurized hydraulic fluid system through utilization of negative pressure pulses that are developed periodically by fluid direction changes during operation of the hydraulic fluid motor.

Abstract: This invention relates to a double-acting drilling jar characterized by a constantly recharged hydraulic system operating in concert with a mechanical brake to actuate the latter and temporarily inhibit extension of the relatively moving parts utilizing a modest fluid pressure multiplied many-fold so as to exert a holding force far in excess of that which the hydraulic system could impose alone without destroying the seals. The invention also encompasses the virtual elimination of heat build-up through the use of drilling mud as the working fluid in a hydraulic system where once-used fluid is discharged downhole before it gets too hot while, at the same time, being replaced by a fresh supply of cool fluid from the surface. By calling upon the hydraulic system to only exert enough force to actuate the mechanical system, none of the fluid seals need be loaded to anywhere near their capacity.