Various embodiments concern a sprayer having a blower that outputs a HVLP flow of air into a hose, the hose connecting with a spray gun. A pressure sensor measures pressure of the HVLP air within the hose via a tube that branches from a fitting to which the hose connects. If the sensor indicates that the pressure level has increased above a threshold amount, indicating that the trigger of the spray gun is not being actuated, then power output to the blower is reduced (e.g., stopped). HVLP air is trapped within the hose by two valves when the trigger is not actuated. When the sensor indicates that the pressure level has decreased, corresponding to release of the trapped HVLP air into the gun for spraying by actuation of the trigger, power to the blower is increased (e.g., resumed).

An adapter (14) allows direct connection of a handheld spray device (10) to paint cans (12, 12A, 12B, 12C), of varying dimensions. The adapter (14) includes a cage (60) for holding the paint can (12, 12A, 12B, 12C), a cap (62) that connects the cage (60) to the handheld spray device (10), and a gasket (64) that seals the open upper end of the paint can (12, 12A, 12B, 12C) to the cap (62). The adapter (14) may also include a suction tube extension 66 that is connectable between the pump inlet (52) and the suction tube (54) of the spray device (10).

Presently described are components of a spray application system. At least one component comprises a liquid repellent surface layer. The liquid repellent surface (e.g. layer) may comprise a porous layer and a lubricant impregnated into pores of the porous layer; a fluoropolymer; a fluorochemical material and an organic polymeric binder; or a fluorochemical material melt additive and a thermoplastic polymeric material component. The component is typically a liquid reservoir, a liquid reservoir liner, a lid for a liquid reservoir or liner, or a combination thereof. In some embodiments, the component comprises a thermoplastic polymeric material. In some favored embodiments, the component is a removable liquid reservoir or liner. In some favored embodiments, the component is a collapsible liquid reservoir or liner. The spray application system typically further comprises a gravity-fed spray gun. Also described are spray application systems, methods of using a spray application system, as well as methods of making a component of a spray application system wherein the component has a liquid repellent surface.

A manifold assembly (600) of a spraying apparatus (400), for example for treating plant matter, for coupling the spraying apparatus to a reservoir of liquid concentrate comprising: ⋅a first layer (602) and a second layer (604): ⋅a fluid port (606), located in the second layer (604), for receiving liquid concentrate from a cartridge (200) comprising a reservoir of liquid concentrate; ⋅a fluid inlet (608), located in the first layer (602), for receiving water from the spraying apparatus (400); and ⋅a fluid outlet (610), located in the first layer (602), for outputting a mixture of water and liquid concentrate to the spraying apparatus (400); wherein the manifold assembly (600) comprises a flow path between the fluid inlet (608) and the fluid outlet (610), and wherein the flow path between the fluid inlet (608) and the fluid outlet (610) includes a mixing section (612) fluidly connected to the fluid port (606) and configured to mix liquid concentrate received from the fluid port (606) with water received at the fluid inlet (608).

A variety of dispensing manifolds which are removable connectable to a single deformable container having a single exit portion are disclosed. The dispensing manifolds of the present disclosure provide a single deformable container having a single exit with one or more outlets from which a fluid can be controllably dispensed. The present disclosure also provides a single force generation mechanism, a deformable container holding a fluid or substance, and dispensing mechanisms all on one machine, i.e., a carrier; a system that may also include a pressurized air source that assists a flow of a fluid; and a system that allows for a continuous flow a substance. The systems of the present disclosure provide a deformable container and a method of dispensing wherein, during dispensing, an actuation member is continuously free of contact with the fluid or substance within the container and the actuation member only contacts the exterior surface of the deformable container.

A variety of dispensing manifolds which are removable connectable to a single deformable container having a single exit portion are disclosed. The dispensing manifolds of the present disclosure provide a single deformable container having a single exit with one or more outlets from which a fluid can be controllably dispensed. The present disclosure also provides a single force generation mechanism, a deformable container holding a fluid or substance, and dispensing mechanisms all on one machine, i.e., a carrier; a system that may also include a pressurized air source that assists a flow of a fluid; and a system that allows for a continuous flow a substance. The systems of the present disclosure provide a deformable container and a method of dispensing wherein, during dispensing, an actuation member is continuously free of contact with the fluid or substance within the container and the actuation member only contacts the exterior surface of the deformable container.

A connector system for a liquid container system for a spray gun includes a lid that includes a liquid outlet and an adapter. The adapter includes a spray gun end and a lid end. The ends are connected with a liquid-tight passageway. Further, the spray gun end is adapted for releasable engagement with a liquid inlet port of the spray gun and the lid end is adapted for releasable engagement with the liquid outlet. The connector system also includes a plurality of interlocking tab assemblies for releasably attaching the adapter to the lid. Each assembly includes a first tab and a second tab, wherein an end of the first tab is adapted to secure the adapter to the lid when the first tab and the second tab are interlocked.

Provided is a spray pot which includes: a body; a detachable inner liner arranged in the body; a closing member which is arranged at the bottom of the inner liner, is in a closed state when the body is placed uprightly and fluid is injected into the inner liner, and is in an opened state when the body is inverted and the fluid is discharged from the inner liner; clamping portions arranged at a bottom of the body and configured to fix the closing member to the body; and a cover arranged at a top of the body, connected with a spray gun, and tightly matched with both the body and the inner liner.

A liquid spray system (100) comprises a housing (110), a spray applicator (120) and an air pressurising device (130). The housing (110) comprises a retaining section (140) to receive a receptacle (200), the receptacle (200) comprising a flexible body (201, 202) having a reservoir (204) comprising a liquid for spraying, and a liquid outlet (205) in fluid communication with the reservoir (204). The retaining section (140) also comprises a receptacle compressor (170) configured to apply a compressive force to the flexible body (201, 202) to force liquid from the liquid outlet (205) of the receptacle (200). The spray applicator (120) is disposed remotely from the housing and in fluid communication with the liquid outlet of the receptacle (200). The air pressurising device (130) is in fluid communication with the spray applicator (120) to propel the liquid from the spray applicator (120).

A fluid reservoir for a spray gun, which fluid reservoir has a material outlet configured for the direct and/or indirect connection to the spray gun. The fluid reservoir includes a material container and a cover arrangement for closing the material container in a detachable manner. An inner bag is arranged in the material container and can be filled with coating material. The fluid reservoir is configured in such a manner that it can be filled with coating material optionally with or without the inner bag and can be used for dispensing the coating material via the material outlet to the spray gun. A flow cup arrangement includes a flow cup and an inner bag. The inner bag can be used with different flow cups.