Abstract: A slew drive includes a bushing interfacing with a drive gear. The bushing resists a load from the drive gear. The bushing includes an aluminum bronze alloy with a high strength. A paving machine includes multiple of the slew drives. The slew drives control an angle of a pivot arm and steering of a track. A method of reducing component failure in the paving machine includes determining an angular position error of the slew drive of the track. If the angular position exceeds a tolerance, a rate-of-change of the angular position is found to determine whether the slew drive is rotating. Where the slew drive is not rotating, the slew drive is driven in a reverse direction to unseize the slew drive. A track drive and the slew drive of the pivot are controlled by a control loop. The slew drive may be dithered to steer a trailing pivot.

Abstract: A filter system includes a tube sheet defining a plurality of holes in fluid communication with a plurality of filter bags. The system also includes a rotating assembly having an arm defining one or more outlets to provide pressurized air from an air source toward the tube sheet in response to pulsing one or more actuators. A motor is operably coupled to the stationary assembly and the rotating assembly to rotate the arm about an axis at a preset rotational speed. A controller is operably coupled to the motor and the one or more actuators to provide pulse commands based on a pulse interval and a jog interval. The pulse interval and the jog interval may be determined based on a measured rotational speed of the arm, which may be redetermined during operation.

Abstract: A filter system includes a tube sheet defining a plurality of holes in fluid communication with a plurality of filter bags. The system also includes a rotating assembly having an arm defining one or more outlets to provide pressurized air from an air source toward the tube sheet in response to pulsing one or more actuators. A motor is operably coupled to the stationary assembly and the rotating assembly to rotate the arm about an axis at a preset rotational speed. A controller is operably coupled to the motor and the one or more actuators to provide pulse commands based on a pulse interval and a jog interval. The pulse interval and the jog interval may be determined based on a measured rotational speed of the arm, which may be redetermined during operation.

Abstract: Air filter systems, filter bag assemblies, filter bags and corresponding methods are described herein. Air filter systems, filter bag assemblies, filter bags and corresponding methods are described herein. The filter bag assemblies include a flange assembly, a cage attached to the flange assembly, and a filter bag installed over the cage with an opening at the flange assembly. When installed in the dirty air chamber of the air filter system, a seal between the flange assembly and the tubesheet defining the dirty air chamber is provided by applying a seal force on the end of the filter bag assembly located proximate the access panel on the side of the dirty air chamber opposite the tubesheet. That seal force is transmitted to the flange assembly through the cage. The tubular filter bags may be in the form of triangular bags and/or may include bag support connectors at the closed end of the bag.

Abstract: Air filter systems, filter bag assemblies, filter bags and corresponding methods are described herein. The filter bag assemblies include a flange assembly, a cage attached to the flange assembly, and a filter bag installed over the cage with an opening at the flange assembly. When installed in the dirty air chamber of the air filter system, a seal between the flange assembly and the tubesheet defining the dirty air chamber is provided by applying a seal force on the end of the filter bag assembly located proximate the access panel on the side of the dirty air chamber opposite the tubesheet. That seal force is transmitted to the flange assembly through the cage. The tubular filter bags may be in the form of triangular bags and/or may include bag support connectors at the closed end of the bag.

Abstract: Filter systems with filter bag assemblies including filter bags with gaskets configured to form radial seals, as well as corresponding methods of assembling and using the same, are described herein. The filter systems, filter bag assemblies, and filter bags with gaskets may be used in filter systems to remove particulate matter from air or other gases. Methods of using the filter systems and methods of assembling the filter bags on filter service cages in the filter bag assemblies are also described.

Abstract: Foldable filter bags, filter bag support assemblies, and filter bag assemblies are described herein. The foldable filter bags, filter bag support assemblies, and filter bag assemblies may be used in air filter systems to remove particulate matter from air or other gases. Methods of using the air filter systems and methods of assembling the filter bag assemblies are also described.

Abstract: Filter bags, filter bag support assemblies, and filter bag assemblies are described herein. The filter bags, filter bag support assemblies, and filter bag assemblies may be used in air filter systems to remove particulate matter from air or other gases. Methods of using the air filter systems and methods of assembling the filter bag assemblies are also described.

Abstract: The technology disclosed herein relates to, in part, a filter assembly. The filter assembly includes a filter media, an endcap, and a disposal container. The filter media includes a first end, a second end opposing the first end, and a filter body extending between the first end and the second end. The endcap is coupled to the filter media along the first end. The disposal container is fixedly coupled to the endcap. The disposal container is extendable over the second end to sealably contain the filter body.

Abstract: A slew drive includes a bushing interfacing with a drive gear. The bushing resists a load from the drive gear. The bushing includes an aluminum bronze alloy with a high strength. A paving machine includes multiple of the slew drives. The slew drives control an angle of a pivot arm and steering of a track. A method of reducing component failure in the paving machine includes determining an angular position error of the slew drive of the track. If the angular position exceeds a tolerance, a rate-of-change of the angular position is found to determine whether the slew drive is rotating. Where the slew drive is not rotating, the slew drive is driven in a reverse direction to unseize the slew drive. A track drive and the slew drive of the pivot are controlled by a control loop. The slew drive may be dithered to steer a trailing pivot.

Abstract: A filter system includes a tube sheet defining a plurality of holes in fluid communication with a plurality of filter bags. The system also includes a rotating assembly having an arm defining one or more outlets to provide pressurized air from an air source toward the tube sheet in response to pulsing one or more actuators. A motor is operably coupled to the stationary assembly and the rotating assembly to rotate the arm about an axis at a preset rotational speed. A controller is operably coupled to the motor and the one or more actuators to provide pulse commands based on a pulse interval and a jog interval. The pulse interval and the jog interval may be determined based on a measured rotational speed of the arm, which may be redetermined during operation.

Abstract: The technology disclosed herein relates to, in part, a filter assembly. Filter media is arranged about a central media opening, where the filter media has a first end and a second end. The central media opening extends in an axial direction from the first end towards the second end. An endcap is coupled to the first end of the filter media. The endcap defines an opening in fluid communication with the central media opening, an inner surface abutting and surrounding the endcap opening, and a perimetric sealing surface about the endcap. A first portion of the perimetric sealing surface projects inwardly towards the endcap opening and a second portion of the perimetric sealing surface projects outwardly from the endcap opening. The first portion and the second portion are in axial alignment, and the perimetric sealing surface forms an oblong loop in a first cross-section orthogonal to the axial direction.

Abstract: A slew drive includes a bushing interfacing with a drive gear. The bushing resists a load from the drive gear. The bushing includes an aluminum bronze alloy with a high strength. A paving machine includes multiple of the slew drives. The slew drives control an angle of a pivot arm and steering of a track. A method of reducing component failure in the paving machine includes determining an angular position error of the slew drive of the track. If the angular position exceeds a tolerance, a rate-of-change of the angular position is found to determine whether the slew drive is rotating. Where the slew drive is not rotating, the slew drive is driven in a reverse direction to unseize the slew drive. A track drive and the slew drive of the pivot are controlled by a control loop. The slew drive may be dithered to steer a trailing pivot.

Abstract: Air filter systems, filter bag assemblies, filter bags and corresponding methods are described herein. Air filter systems, filter bag assemblies, filter bags and corresponding methods are described herein. The filter bag assemblies include a flange assembly, a cage attached to the flange assembly, and a filter bag installed over the cage with an opening at the flange assembly. When installed in the dirty air chamber of the air filter system, a seal between the flange assembly and the tubesheet defining the dirty air chamber is provided by applying a seal force on the end of the filter bag assembly located proximate the access panel on the side of the dirty air chamber opposite the tubesheet. That seal force is transmitted to the flange assembly through the cage. The tubular filter bags may be in the form of triangular bags and/or may include bag support connectors at the closed end of the bag.

Abstract: One embodiment of the present disclosure may take the form of a method of dispersing scents in congruity with entertainment. Multiple scents are dispersed into the environment surrounding a participant at various points in congruity with visual entertainment. The scents are selectively provided at various times to coincide with the display of one or more elements in the entertainment experience such as a location or character. One embodiment of the present disclosure may take the form of a system for blending scents. The system includes an airflow source, a plurality of scent distributors, and a controller operably coupled to the airflow source and plurality of scent distributors to selectively control delivery of the scents from the plurality of scent distributors to bulk airflow delivered to a participant environment.

Abstract: One embodiment of the present disclosure may take the form of a method of dispersing scents in congruity with entertainment. Multiple scents are dispersed into the environment surrounding a participant at various points in congruity with visual entertainment. The scents are selectively provided at various times to coincide with the display of one or more elements in the entertainment experience such as a location or character. One embodiment of the present disclosure may take the form of a system for blending scents. The system includes an airflow source, a plurality of scent distributors, and a controller operably coupled to the airflow source and plurality of scent distributors to selectively control delivery of the scents from the plurality of scent distributors to bulk airflow delivered to a participant environment.

Abstract: A paint composition comprises a carrier material, a plurality of ambient light absorbing pigment particles dispersed in the carrier material comprising a component that absorbs predetermined visible wavelengths, and a plurality of fluorescent pigment particles dispersed in the carrier material, wherein the fluorescent pigment particles emit a first color and the paint composition emits a second color different from the first color when illuminated by an ultraviolet light source. The paint composition can act as a video projection surface with usable screen gain.

Abstract: A paint composition comprises a carrier material, a plurality of ambient light absorbing pigment particles dispersed in the carrier material comprising a component that absorbs predetermined visible wavelengths, and a plurality of fluorescent pigment particles dispersed in the carrier material, wherein the fluorescent pigment particles emit a first color and the paint composition emits a second color different from the first color when illuminated by an ultraviolet light source. The paint composition can act as a video projection surface with usable screen gain.

Abstract: A display system configured to provide projection mapped augmentation of mechanically animated objects. These mechanically animated objects may take the form of a screen assembly with a projection surface, and a screen actuator may be included in the display system that is operated by a controller to move, to expand, or other otherwise operate the screen assembly so as to modify or morph the projection surface to move and/or change its shape and/or size. Hence, the screen assembly is animated. The display system further includes a projector operated by the controller, in a synchronized manner with the screen actuator, to project content onto the projection surface as it is moved and/or has its shape and/or size changed over time. The projected content is mapped to the various states and movement of the projection surface to avoid blow-by and to suit the changes of the projection surface.