Abstract: An interface between forks of a fork lift and one or more sweepers includes elements to receive the forks, and forward-facing elements fittable into fork insertion members in the sweepers. The forward-facing elements are spaced far enough apart to permit using more than one sweeper without mutual interface.

Abstract: A large-scale cleaning vehicle, for operation with a forklift, includes rotation brushes for sweeping debris toward a center of said cleaning vehicle, a sweeping brush for sweeping the debris into a debris collection box and a fan for pulling said debris into said debris collection box without the need for a motor in the cleaning vehicle. Each of the rotation brushes, the sweeping brush, and the fan are rotatably connected to a rear wheel of the cleaning vehicle such that when the cleaning vehicle is moved, the brushes and fan are rotated. The cleaning vehicle further includes a vertical adjustment for the rotation brushes to lift them when they are not needed, a lateral adjustment for the rotation brushes to adjust a width of sweeping, an audible warning for pedestrians, a water sprinkler system to aid in the cleaning process, and a large-scale trash removal brush mounted in front of the cleaning vehicle to push large-scale trash.

Abstract: A large-scale cleaning vehicle, for operation with a forklift, includes rotation brushes for sweeping debris toward a center of said cleaning vehicle, a sweeping brush for sweeping the debris into a debris collection box and a fan for pulling said debris into said debris collection box without the need for a motor in the cleaning vehicle. Each of the rotation brushes, the sweeping brush, and the fan are rotatably connected to a rear wheel of the cleaning vehicle such that when the cleaning vehicle is moved, the brushes and fan are rotated. The cleaning vehicle further includes a vertical adjustment for the rotation brushes to lift them when they are not needed, a lateral adjustment for the rotation brushes to adjust a width of sweeping, an audible warning for pedestrians, a water sprinkler system to aid in the cleaning process, and a large-scale trash removal brush mounted in front of the cleaning vehicle to push large-scale trash.

Abstract: A device for removing an adhered foreign substance, such as chewing gum, from surfaces employs a reciprocating scraper that separates the substance from the surface to be cleaned. A liquid, such as cleaning solution or solvent, is optionally discharged in the vicinity of the end of the scraper to augment the separation. A vacuum device draws air and loosened matter into an opening in the nozzle and traps it in a container. Optionally, the vacuum device is attached to a nozzle movable away from and toward the scraper by pushing a handle. When the nozzle moves toward the scraper, it activates the vacuum device.

Abstract: An electric space heater includes a hemispherical enclosure in which is positioned a blower arranged to draw air in through air inlets proximate the pole of the hemisphere for discharge through a plurality of air discharge outlets around the circumference of the enclosure. A filter between the inlets and blower filters the air and electric heating elements are provided for heating the air prior to discharge through the circumferential outlets. The enclosure is fastened to a base lying entirely within the periphery of the enclosure and supporting the blower and heating elements by a single fastener at the pole of the hemipshere with the filter captured between the enclosure and the internal parts of the heater supported on the base. The heater can be affixed to a surface by a mount attachable to the surface and having a threaded fastener engageable with a cooperating threaded member secured in a recess in the bottom of the base. The enclosure may be provided with wheels at its lower perimeter.