A robotic service device is described for use on a robotic picking system grid. The robotic service device is capable of driving to any location on the grid order to perform maintenance operations or cleaning. Additionally, the service device may be used to rescue robotic load handling devices operational in the picking system. The robotic service device may include a releasable docking mechanism to enable it to dock and latch on to malfunctioning load handling devices. The service device may also be provided with cleaning capability and a camera to enable the condition of the grid and other robotic devices to be monitored.

The disclosed invention utilizes deformable gaskets configured to form a seal which slides through the grooves and across the tops of escalator and travelator treads and using evacuation cleaning components as either a complete escalator and travelator tread cleaning machine or an accessory device configured to operate with an existing vacuum carpet evacuation apparatus. The disclosed gaskets in combination with evacuation and spray nozzle manifolds connected by escalator and travelator groove passages form a basic embodiment of the disclosed tread engagement assembly. In certain embodiments, the disclosed apparatus utilizes certain components of carpet evacuation equipment in combination with the disclosed v for cleaning escalator and travelator treads, including both the risers and treads of the escalator and travelator.

A hygienic magnetic tray and conveyor. The low-profile tray includes a forcer sandwiched between an article-supporting top and an opposite bottom. The top is made of hygienic material, and the bottom can be made of a low-friction material. The tray is propelled along a guide surface on an enclosure housing stator coils supported in a conveyor frame. The stator forms a linear motor with the forcer in the tray. Roller balls protruding from the bottom of one version of the tray provide low-friction rolling contact with the guide surface. Various disposal systems provide escape routes for removing fluids and debris from the guide surface of the stator enclosure.

A self-cleaning ring conveyor includes a first roller having a first rotational axis and a second roller having a second rotational axis that is parallel with the first rotational axis. The conveyor also includes a first ring extending around a combination of the first roller and the second roller and a second ring extending around the combination of the first roller and the second roller. The first ring and the second ring are parallel to each other. The conveyor also includes a first scraper having a first scraping slot and a second scraping slot. The first ring extends through the first scraping slot and the second ring extends through the second scraping slot.

A device, mechanism, and methodology for regular and consistent cleaning of the vacuum aperture, nozzle, and contacting surfaces of a pick-and-place apparatus and the pick-up tools of automated or manual semiconductor device and die handling machines are disclosed. The cleaning material may include a cleaning pad layer with one or more intermediate layers that have predetermined characteristics, regular geometrical features, and/or an irregular surface morphology.

A device, mechanism, and methodology for regular and consistent cleaning of the vacuum aperture, nozzle, and contacting surfaces of a pick-and-place apparatus and the pick-up tools of automated or manual semiconductor device and die handling machines are disclosed. The cleaning material may include a cleaning pad layer with one or more intermediate layers that have predetermined characteristics, regular geometrical features, and/or an irregular surface morphology.

A flash lamp system provides flashes to a bottom side of a conveyor to disinfect the conveyor while the conveyor is transporting products on a top side of the conveyor. The flashes are provided to discontinuous segments of the conveyor such that a portion of the conveyor is treated with each revolution, but a controller causes the entire length of the conveyor to be disinfected over multiple revolutions. The controller can respond to changes in speed and detected levels of disinfection. The disinfection system can be used in many applications, such as the transporting of fresh or frozen food products.

A flash lamp system provides flashes to a bottom side of a conveyor to disinfect the conveyor while the conveyor is transporting products on a top side of the conveyor. The flashes are provided to discontinuous segments of the conveyor such that a portion of the conveyor is treated with each revolution, but a controller causes the entire length of the conveyor to be disinfected over multiple revolutions. The controller can respond to changes in speed and detected levels of disinfection. The disinfection system can be used in many applications, such as the transporting of fresh or frozen food products.

To provide a roller scraper capable of having a long service life.

A roller scraper that removes attached substances on a surface of a roller, the roller scraper including a scraper main body that is supported on a floor portion and a scraping claw that is disposed in such a manner as to project in a width direction of the scraper main body. The scraping claw is placed against the roller in such a manner as to be in contact with the surface of the roller, and an opening is formed in the scraper main body.

A hygienic magnetic tray and conveyor. The low-profile tray includes a forcer sandwiched between an article-supporting top and an opposite bottom. The top is made of hygienic material, and the bottom can be made of a low-friction material. The tray is propelled along a guide surface on an enclosure housing stator coils supported in a conveyor frame. The stator forms a linear motor with the forcer in the tray. Various disposal systems provide escape routes for removing fluids and debris from the guide surface of the stator enclosure.