Embodiments of the present disclosure provide a main mask, a mating mask, and a mask assembly. The mask assembly includes a main mask having an evaporation area and a mating mask having a mating area. An effective evaporation area of the main mask corresponds to a display area of a display panel. A first mating area of the mating mask is provided with a first mating opening, and an orthographic projection of the first mating opening on the mating mask completely covers an orthographic projection of the effective evaporation opening on the mating mask. A second mating area of the mating mask shields an ineffective evaporation opening in an ineffective evaporation area of the main mask.

An electrostatic spinning device including a nozzle that sprays spinning liquid that has been charged; a switch that controls spray operation of the spinning liquid; and a housing that includes a bulging portion and a grip portion for grip of the user, the bulging portion bulging outward from a virtual line connecting a tip of the nozzle and an end of the switch on a side of the nozzle, an angle formed by an axis of the nozzle and an axis of the grip portion being 45 degrees or more.

The invention relates to a surface-treatment facility (10) for surface-treating vehicle bodies (12), said facility comprising at least two floor-bound transport carriages (20), each of which comprises a fastening device (18), to which vehicle bodies (12) can be fastened. Each transport carriage (20) can be shifted by means of its own drive that can be carried therewith. The surface-treatment facility (10) also comprises a substantially gas-tight treatment chamber (14) that is delimited by a housing (15). The vehicle bodies (12) can be moved, at least temporarily, in the treatment chamber (12) by means of a relevant transport carriage (20). The surface-treatment facility (10) further comprises a travel region (22), arranged outside the housing (15), in which the transport carriages (20) can be moved, at least temporarily. Furthermore, the surface-treatment facility (10) comprises a gap (30) which is formed in the housing (15) between the travel region (22) and the treatment chamber (14) and through which the fastening device (18) of the relevant transport carriage (20) protrudes if the transport carriage (20) is in the travel region (22) A first atmosphere can be generated in the travel region (22) and a second atmosphere, which is different from the first atmosphere, can be generated in the treatment chamber (14).

A convenient and labor-saving, chemically-resistant, multi-layered construction tool covering accessory is provided for protecting a paint shield or other flat-shaped construction tool from soiling during a construction process. The accessory includes a backing member comprising an adhesive inner side for adhering to a construction tool, and an opposed, outer side. At least one stack of removable cover sheets is affixed to the outer side of the backing member. Each removable cover sheet comprises an inner side, an outer side, and an adhesive material on the outer side of the removable cover sheet. The adhesive material is configured to detachably adhere to an adjacent cover sheet arranged over said each removable cover sheet, and to a wall or other surface when said each removable cover sheet is arranged in an outermost position of the at least one stack.

A convenient and labor-saving, chemically-resistant, multi-layered construction tool covering accessory is provided for protecting a paint shield or other flat-shaped construction tool from soiling during a construction process. The accessory includes a backing member comprising an adhesive inner side for adhering to a construction tool, and an opposed, outer side. At least one stack of removable cover sheets is affixed to the outer side of the backing member. Each removable cover sheet comprises an inner side, an outer side, and an adhesive material on the outer side of the removable cover sheet. The adhesive material is configured to detachably adhere to an adjacent cover sheet arranged over said each removable cover sheet, and to a wall or other surface when said each removable cover sheet is arranged in an outermost position of the at least one stack.

Various embodiments for a median barrier finishing machine are described. A median barrier finishing machine may include a housing configured to encapsulate at least a portion of a median barrier, where the housing comprises a first vertical wall, a second vertical wall, and a horizontal wall. The median barrier finishing machine may include at least one adjustable member configured to couple the housing to the vehicle and retain the housing a predetermined distance relative to the vehicle while the vehicle is in motion. Further, the median barrier finishing machine may include at least one finishing device disposed within the housing, where the at least one finishing device is configured to contact a surface of a median barrier at least partially positioned within the housing and treat the surface as the vehicle moves the housing along a length of the median barrier.

Various embodiments for a median barrier finishing machine are described. A median barrier finishing machine may include a housing configured to encapsulate at least a portion of a median barrier, where the housing comprises a first vertical wall, a second vertical wall, and a horizontal wall. The median barrier finishing machine may include at least one adjustable member configured to couple the housing to the vehicle and retain the housing a predetermined distance relative to the vehicle while the vehicle is in motion. Further, the median barrier finishing machine may include at least one finishing device disposed within the housing, where the at least one finishing device is configured to contact a surface of a median barrier at least partially positioned within the housing and treat the surface as the vehicle moves the housing along a length of the median barrier.

A retractable fence assembly for protecting a vehicle from being sprayed by a sprinkler system includes a housing that is buried beneath ground to concealed the housing from view and the housing is positioned adjacent to a parking space of a vehicle. A pair of poles is each movably disposed in the housing and each of the poles comprising a plurality of telescopic sections such that each of the poles has a telescopically adjustable height. A pair of actuators is each positioned within the housing and each of the actuators is in mechanical communication with a respective one of the poles. Each of the actuators urges the respective pole into an elongated condition or a retracted position. A barrier is coupled between the pair of poles to block water sprayed from a sprinkler system from contacting a vehicle parked in the vehicle parking spot.

A retractable fence assembly for protecting a vehicle from being sprayed by a sprinkler system includes a housing that is buried beneath ground to concealed the housing from view and the housing is positioned adjacent to a parking space of a vehicle. A pair of poles is each movably disposed in the housing and each of the poles comprising a plurality of telescopic sections such that each of the poles has a telescopically adjustable height. A pair of actuators is each positioned within the housing and each of the actuators is in mechanical communication with a respective one of the poles. Each of the actuators urges the respective pole into an elongated condition or a retracted position. A barrier is coupled between the pair of poles to block water sprayed from a sprinkler system from contacting a vehicle parked in the vehicle parking spot.

A spray gun cover is made of flashspun high-density polyethylene fibers (e.g., Tyvek), another cloth-like material, plastic, or fabric. The cover is self-sustaining, and an elastic material is disposed at openings of the cover to secure the cover at the nozzle around the nozzle opening of the spray gun cover and at the back of the spray gun around a large opening of the spray gun cover. Through the cover, the paint cup or reservoir and the spray gun are covered and protected from airborne fluid or dry particles that bounce back from the surface of the item being sprayed with paint, stain, or other fluid (overspray). Additionally, an air hose cover is also made of flashspun high-density polyethylene fibers or the like and covers and protects an air hose for a spray gun.