An extension paint spray-roller system includes a hydraulic paint spray extension system to which is mounted a paint roller system for use in combination. The hydraulic paint spray extension system includes an on-off control valve/handle communicating with a source of high pressure paint and connected via a straight-through swivel joint to a pole extension having a spray tip mounted at the oppositive end. A paint roller system is mounted to the paint spray extension system by a mounting system which permits a commercially available off-the-shelf paint roller to be utilized with the system.

A device for holding a paint roller may include a pair of parallel hook arms, a plurality of cross bars attached to and extending between the pair of parallel hook arms, a support bracket attached to and extending between first ends of each of the parallel hook arms, and a brace arm attached to and extending between second ends of each of the parallel hook arms. Each hook arm may have a first portion proximate to the first end, a second portion to the second end, and a middle portion extending between the first portion and the second portion, wherein the first portion, the middle portion, and the second portion form a continuous curved hook arm. The middle portion may extend substantially perpendicularly upward from the first portion; and the second portion may extend downward from the middle portion and may have a concave curve.

A roller cover and associated pair of cams attachable to opposite ends of the roller cover. Each of the cams has an outer diameter extending radially outwardly beyond an outer diameter of the roller cover a predetermined distance for maintaining the outer diameter of the roller cover a corresponding distance from the surface being coated during rotational movement of the roller cover over the surface to act as a thickness gauge for the coating being applied to the surface.

A roller cover and associated pair of cams attachable to opposite ends of the roller cover. Each of the cams has an outer diameter extending radially outwardly beyond an outer diameter of the roller cover a predetermined distance for maintaining the outer diameter of the roller cover a corresponding distance from the surface being coated during rotational movement of the roller cover over the surface to act as a thickness gauge for the coating being applied to the surface.

Provided is a method and an apparatus for indicating minimum exposure of a surface to UVC light emitted by a source during a decontamination process to achieve a desired level of pathogen reduction. The apparatus includes a photochromic material to be applied to, or applied adjacent to the surface. The photochromic material is to exhibit a visible response to receiving the minimum exposure to the UVC light, and exhibit the visible response to a lesser extent after the photochromic material ceases to be exposed to the UVC light emitted by the source. A protective layer of material that is substantially transparent to the UVC light emitted by the source is positioned over the photochromic material to be disposed between the source and the photochromic material during the decontamination process.

A paint roller assembly, comprising a frame assembly including a handle and a frame, where one end of the frame is attached to the handle and the other end includes a cross-member structure attached to the frame opposite and orthogonal to the handle end, a first paint roller cage rotatably mounted on a first branch of the cross-member section, and a second paint roller cage rotatably mounted on a second branch of the cross-member structure. Optionally, a first paint roller cover can be placed over the first paint roller cage, and a second paint roller cover can be placed over the second paint roller cage, wherein at least one of the first paint roller cage and second paint roller cage has an end covered in paint-absorbing material for applying paint into a corner between adjacent surfaces.

A paint roller assembly, comprising a frame assembly including a handle and a frame, where one end of the frame is attached to the handle and the other end includes a cross-member structure attached to the frame opposite and orthogonal to the handle end, a first paint roller cage rotatably mounted on a first branch of the cross-member section, and a second paint roller cage rotatably mounted on a second branch of the cross-member structure. Optionally, a first paint roller cover can be placed over the first paint roller cage, and a second paint roller cover can be placed over the second paint roller cage, wherein at least one of the first paint roller cage and second paint roller cage has an end covered in paint-absorbing material for applying paint into a corner between adjacent surfaces.

A multipurpose frame system providing a Y-shaped frame with angular bend attached to a U-shaped frame capable of receiving and securing a functional system, such as, for example in one embodiment, a cylindrical roller for receiving and securing a paint roller pad, and functional system separately capable of being fully disconnected.

A rotary applicator device comprises a handle member having a longitudinal axis, and an elongate member rotatably interfaced with the handle member. The elongate member comprises an applicator attachment portion. An applicator is removably coupled to the applicator attachment portion and is comprised of an absorbent material configured to absorb a material, such as paint, stain, or adhesive. The elongate member and the applicator are operable to rotate about the longitudinal axis while the handle member is moved in a direction transverse to the longitudinal axis, thereby facilitating deposit of a portion of the material from the applicator onto a surface while the applicator rotates along the surface.

A fluid transfer assembly comprises a housing for accommodating a fluid. A bellows member disposed in the housing defines an opening therethrough adapted to be in fluid communication with an applicator assembly. The bellows member is adapted to operatively engage the applicator assembly for extension in a first direction and contraction in a second direction. The bellows member seals against the inner surface of the housing during extension and contraction for defining a variable volume chamber with the housing. Expansion of the bellows member in the first direction reduces the chamber volume for generating positive pressure in the housing and forcing fluid through a valve to the applicator assembly. Contraction of the bellows member in the second direction increases the chamber volume for generating negative pressure within the housing for drawing fluid into the chamber.