Abstract: A toothbrush with suctioning and cleaning functions according to an embodiment of the present invention includes a toothbrush rod including a head portion and a handle portion, a brush disposed at the head portion, a through-hole portion formed at the head portion to supply cleaning water to an oral cavity or suction in dirty water from the oral cavity, a guide tube disposed within the toothbrush rod and connected to the through-hole portion to deliver the cleaning water to the through-hole portion or deliver the dirty water suctioned in through the through-hole portion to the outside, and an external main body to supply the cleaning water to the guide tube and to receive the dirty water from the guide tube.

Abstract: This disclosure provides a smart toothbrush, including a head, a front handle, a grip handle, a turning unit, a drying unit, a testing, unit, a power unit and a charge base. The front handle of the toothbrush using the disclosed device can revolve automatically by applying water on the bristles. The toothbrush resets automatically after being aired and dried for convenient and clean application for the next use.

Abstract: An autonomous floor-traversing robot includes: a wheeled body including a chassis and at least one motorized wheel configured to propel the chassis across a floor, the chassis defining an interior compartment disposed beneath a chassis ceiling; a cover extending across at least a central area of the chassis ceiling; and a graspable handle connected to the chassis and located outside the cover so as to be accessible from above the robot, the handle arranged to enable lifting of the robot. The chassis ceiling defines drainage channels configured to conduct the liquid away from the central area of the chassis ceiling.

Abstract: Disclosed are tools for use in the building construction industry to apply coatings to surfaces. A trowel is disclosed for shaping a wet coating mixture on a surface. The trowel includes channels in the trowel head. Each channel forms a crest in the wet coating mixture in response to the trowel being passed over the wet coating mixture. Also disclosed is a tool for leveling a coating on a surface. The tool includes a screed bar, a screed bar coupling device, and a handle. The one or more than one screed bar coupling device removeably couples the screed bar to a substrate that includes the surface that the coating is to be applied to. The screed bar provides a level screed reference for the wet coating mixture. After the wet coating mixture is leveled, the screed bar is removed from the substrate.

Abstract: An apparatus for removing waste material from a surface is provided. In an embodiment, the apparatus includes a vacuum suction head and a waste receptacle for storing waste material that are vacuumed through the suction opening head. The waste receptacle has a discharge port through which waste material stored within said waste receptacle may be discharged for emptying said waste receptacle. Chemical solution held in a fluid reservoir is pumped to one or more fluid nozzles to break up material during, before or prior to vacuuming.

Abstract: A floor-type vacuum cleaner includes a housing and rollers attached to the housing that are configured to provide movement of the housing. Each roller is disposed on a roller axle so as to be rotatable. At least one of the rollers includes a rigid hub and an air-filled, rubber, resilient, damping tire. Alternatively, at least one of the rollers has a damping property and includes alternating concentric layers of rigid and flexible components, with air being disposed between at least one of the rigid components and at least one of the flexible components.

Abstract: Certain embodiments disclosed herein relate to compositions, methods, devices, systems, and products regarding frozen particles. In certain embodiments, the frozen particles include materials at low temperatures. In certain embodiments, the frozen particles provide vehicles for delivery of particular agents. In certain embodiments, the frozen particles are administered to at least one substrate.

Abstract: A CMP pad conditioner is provided that includes a substrate having a surface and three dimensional structures protruding relative to the surface of the substrate. The three dimensional structures include CVD carbon-containing material selected from the group consisting of carbon nanotubes and diamond, and may be arranged in a ordered array or desired pattern. The CMP pad conditioner also includes a bonding layer overlying the three dimensional structures and the surface of the substrate. The condition may include a reinforcing layer disposed within gaps between the three dimensional structures. Techniques for manufacture and use are also disclosed.

Abstract: Tracheo-oesophageal valve cleaning apparatus comprises a fluid dispenser with a fluid reservoir and an outlet; a cleaning element mounted proximal to the outlet; and a drive mechanism including an element mounted axially within the said fluid dispenser, wherein axial movement of the element of the drive mechanism towards to the outlet causes both rotation of cleaning element and fluid to be dispensed from the outlet.

Abstract: A grinding machine wherein coarse and fine grind wheels are mounted to a single rotating spindle. A multiple grind wheel mount is attached to the lower portion of the rotating spindle, the coarse and fine wheels being supported by the wheel mount, the wheel mount containing the mechanism for moving the inner coarse wheel down relative to the stationary outer fine wheel.

Abstract: A skid plate for a concrete saw is integrally cast having two end mounting portions and a middle portion with a slot in the middle portion. A horizontal slot in a leading end mounting portion cooperates and a vertical slot in the trailing end portion releasably engage pins on the saw to allow the skid plate to be easily fastened to and removed from the saw. A spring loaded latch mechanism holds the pins in the slots.

Abstract: The present invention is directed to a method of polishing a minimum spangle aluminum-zinc alloy hot-dip coating applied to sheet steel to provide a polished hot-dip coating having a continuous, consistent surface appearance suitable for use in an unpainted condition.

Abstract: A vacuum cleaner is provided. The vacuum cleaner includes suction means that provides suction force, a suction nozzle that uses the suction force provided by the suction means to draw in particle laden air, a dust collecting box that receives the particle laden air drawn in through the suction nozzle, an upper cover having an opening at a central portion thereof that provides for selective opening/closing of an upper portion of the dust collecting box, and a filter assembly that is selectively fastened to an edge of the opening, for filtering dust from the particle laden air and discharging the air upward. This structure simplifies cleaning and replacement of the dust collector assembly.

Abstract: The present invention provides an assembly of machined or precision cast components which combine to form a high pressure water powered rotary tool. The rotary tool includes a rigid metal housing, a high pressure water inlet, an impeller rotatably mounted within the housing, an output drive shaft, a backing disk and at least one handgrip or alternatively an extendable handle capable of articulation throughout an extended range. The rotary tool is attachable to a pump driven by an electric motor or internal combustion engine.

Abstract: The arrow blade sharpening apparatus is best suited for precision sharpening of arrow blades, Exacto® knife blades, and other like edges which require precision and fine honing. The transparent lidded apparatus is motorized and counter rotates drive gears and then ceramic abrasive wheels with a single motor. The slot of the housing and the guide of the blade holder provide for exact sharpening work without the possibility of angle misalignment of the blade-to-wheel contact.

Abstract: A lapping carrier for machining a row of magneto-resistive elements is disclosed. The lapping carrier includes a plurality of movable elements, the movable elements terminating at an outer surface to form a generally planar mounting surface for a row of magneto-resistive elements. The lapping carrier is formed of a ceramic material. A method for lapping or machining a row of magneto-resistive elements is also disclosed.