Abstract: Disclosed are devices, systems and methods for air purification in an airflow tract of vacuum cleaners. In some aspects, an air purification system for a vacuum cleaner comprises an ultraviolet (UV) light unit disposed in a first location within the vacuum cleaner along an airflow pathway, configured to emit UV light at air containing particles including dust, dirt, and microbes while the air containing the particles is flowing in the airflow pathway where the UV light unit is disposed; and a particle filter unit disposed in a second location within the vacuum cleaner along the airflow pathway, the particle filter unit comprising one or both of a high-efficiency particulate air (HEPA) filter and an active carbon filter.

Abstract: An improved agricultural spray boom having a primary section, a secondary section and a break away section is provided. The primary section has a top extrusion having a web and two tubes, each tube having a heat sink and a wing. No welds are located above the centerline of the tubes where stress would be the greatest. The secondary section is pivotally attached to the primary section. Weight of the second section and break away section cause a twisting force to be applied to the primary section. The primary section has specially oriented side braces which act in compression to resist the twisting force. The primary section further has a steel connector connected to the underside of the extrusions (and not welded to top of extrusions). The secondary section also has a top extrusion with a web and two tubes.

Abstract: A roll-up type industrial door including a flexible sheet or woven fabric forming a curtain for closing a door way having an upper end, a lower end and two opposite side edges. The sheet has a main area and elongate side edge sections that are thicker than the main area. A shoulder is formed where each side edge section meets the main area. A curtain winding mechanism is connected to the upper end of the curtain and is used to raise the curtain. A pair of spaced apart guide channels are also provided and the side edge sections are movable therein. Each guide has one or two elastic members which act as locking blades. The locking blades of each guide form an elongate slot that receives a side edge section of the curtain.

Abstract: A rotary brush turf sweeper includes a frame with a first and second brush carriage supporting a first and second rotary brush. The brush carriages include a first and second carriage bar extending lengthwise along the first and second rotary brush. The brush carriages pivotably attach to the frame by a mounting point on opposing ends of the first brush carriage, allowing the brush carriages to rotate about the attachment point. A brush height adjustment mechanism joins the carriage bars with an electronic actuator. The electronic actuator may be remotely operated to adjust the height of the rotary brushes from a work surface and elevate them so as not to touch the work surface. A first and second drive mechanism transfers rotational force from a pair of drive wheels, so that the rotary brushes always rotate as the device is towed by a vehicle.

Abstract: A roll-up type industrial door including a flexible sheet or woven fabric forming a curtain for closing a door way having an upper end, a lower end and two opposite side edges. The sheet has a main area and elongate side edge sections that are thicker than the main area. A shoulder is formed where each side edge section meets the main area. A curtain winding mechanism is connected to the upper end of the curtain and is used to raise the curtain. A pair of spaced apart guide channels are also provided and the side edge sections are movable therein. Each guide has one or two elastic members which act as locking blades. The locking blades of each guide form an elongate slot that receives a side edge section of the curtain.

Abstract: An improved agricultural spray boom having a primary section, a secondary section and a break away section is provided. The primary section has a top extrusion having a web and two tubes, each tube having a heat sink and a wing. No welds are located above the centerline of the tubes where stress would be the greatest. The secondary section is pivotally attached to the primary section. Weight of the second section and break away section cause a twisting force to be applied to the primary section. The primary section has specially oriented side braces which act in compression to resist the twisting force. The primary section further has a steel connector connected to the underside of the extrusions (and not welded to top of extrusions). The secondary section also has a top extrusion with a web and two tubes.

Abstract: A rotary brush turf sweeper includes a frame with a first and second brush carriage supporting a first and second rotary brush. The brush carriages include a first and second carriage bar extending lengthwise along the first and second rotary brush. The brush carriages pivotably attach to the frame by a mounting point on opposing ends of the first brush carriage, allowing the brush carriages to rotate about the attachment point. A brush height adjustment mechanism joins the carriage bars with an electronic actuator. The electronic actuator may be remotely operated to adjust the height of the rotary brushes from a work surface and elevate them so as not to touch the work surface. A first and second drive mechanism transfers rotational force from a pair of drive wheels, so that the rotary brushes always rotate as the device is towed by a vehicle.

Abstract: The present invention provides a computer based, online and mobile app system that collects, filters and aggregates market data by flashing products, music clips, words, photos and other images at users and measuring the speed of their responses to 1/100th of a second. User decisions and response times are sent to a database where they are compared to aggregate responses. The system compares the results to aggregate responses and speeds in its database to create ratings for every product, music clip, word, photo, other image, and user. An accounting of the user's relative position as a rater, as well as an accounting of their responses to the product, music clip, word, photo, other image they have rated, are sent back to the user's mobile device or computer. In this process, a searchable database of public opinion is created and hosted online, or in the cloud, that will automatically and continually be updated in real time.

Abstract: A method and apparatus for mounting and dismounting an overhead bowling scoring monitor. The method includes positioning a support member at the overhead location for the bowling scoring monitor and providing a lifting mechanism having an elongated lifting member and a force-producing member for extending and retracting the lifting member. The lift mechanism is attached to the bowling scoring monitor and to any stationary member above the monitor and the force-producing device is operated in order to retract the lifting member to raise the overhead bowling scoring monitor into proximity with the support member, or to pay out the lifting member to lower the overhead bowling scoring monitor from the support member. Preferably, the support member is a rigid frame which is substantially horizontally planar. The rigid frame may include at least two spaced apart parallel tubular members in a manner that the elongated lifting member extends from the elongated body between the two tubular members.

Abstract: Partially formed products (2) are placed in molds (8) and a fluid such as air or an edible filler is injected into the partially formed products (2), e.g. by needles 17[see FIG. 6], so as to cause expansion and thereby produce final products (2) having the shape of the molds (8). Each mold (8) may comprise an upper mold part (14) and a lower mold part (11). The lower mold parts (11) may be mounted on a chain conveyor (9, 9b, 9c) [see FIG. 1] or a rotating cylinder (28) [see FIG. 12] so that the partially formed products (2) are moved towards and the final products (2) are moved away from a reciprocating assembly (12, 13) which carries the upper mold parts (14). Preferably, the final products (2) are retained in the upper mold parts (14) and then ejected by a blast of air. The invention enables complicated shapes to be formed at high production rates while using an economical amount of chocolate or the like.