7369 results about "Surface cleaning" patented technology

An autonomous floor cleaning robot includes a transport drive and control system arranged for autonomous movement of the robot over a floor for performing cleaning operations. The robot chassis carries a first cleaning zone comprising cleaning elements arranged to suction loose particulates up from the cleaning surface and a second cleaning zone comprising cleaning elements arraigned to apply a cleaning fluid onto the surface and to thereafter collect the cleaning fluid up from the surface after it has been used to clean the surface. The robot chassis carries a supply of cleaning fluid and a waste container for storing waste materials collected up from the cleaning surface.

A method for fabricating a semiconductor device including surface cleaning includes forming a gate stack on a semiconductor substrate, cleaning contaminants present on the surface of the semiconductor substrate exposed through a contact hole using an etchant including a fluorine (F)-containing species dispersed in an alcohol, and filling a contact hole with a conductive layer to form a connection contact. The etchant preferably has a low selectivity of 1 or less.

Disclosed herein is a method of cleaning oxide from a surface in the fabrication of an integrated device using reducing radicals and UV radiation. For silicon surfaces, the cleaning may be performed at a temperature at which a hydrogen-terminated passivated surface is stable, such that the surface remains protected after loading into the chamber until the cleaning is performed. Performing the cleaning at a lower temperature also consumes a reduced portion of the thermal budget of a semiconductor device. Epitaxial deposition can then be performed over the cleaned surface.

A surface cleaning apparatus has a unit that is self contained and has a shoulder strap reel containing a shoulder strap that is manually or automatically deployable or withdrawable.

An autonomous floor cleaning robot includes a transport drive and control system arranged for autonomous movement of the robot over a floor for performing cleaning operations. The robot chassis carries a first cleaning zone comprising cleaning elements arranged to suction loose particulates up from the cleaning surface and a second cleaning zone comprising cleaning elements arraigned to apply a cleaning fluid onto the surface and to thereafter collect the cleaning fluid up from the surface after it has been used to clean the surface. The robot chassis carries a supply of cleaning fluid and a waste container for storing waste materials collected up from the cleaning surface.

A vacuum cleaner comprises adjacent housings, which contain the filtration and suction fan motor assembly of the vacuum cleaner.

A surface cleaning apparatus comprises at least one cyclone and at least one dirt collection chamber. The dirt collection chamber has a removeably mounted door

A dirt container for a surface cleaning apparatus is constructed from an air impermeable material and exterior walls of sufficient rigidity to maintain the shape of the dirt container. The dirt container may be supplied in a disassembled condition and assembled by a consumer prior to use.

A flexible, multilayer wound dressing with antibacterial and antifungal properties, together with methods for making the dressing. The dressing includes a layer of silver-containing fabric, a layer of absorbent material, and (optionally) a layer of a flexible air-permeable and/or water-impermeable material. The dressing can be used for prophylactic and therapeutic care and treatment of skin infections and surface wounds (including surgical incisions), as a packing material, and as a swab for surface cleaning.

A surface cleaning apparatus has a cleaning unit that is mounted on a wheeled base.

A cyclonic cleaning stage for a, e.g., surface cleaning apparatus is provided. The cyclonic cleaning stage comprises a plurality of cyclones, which are integrally molded as a single body. Each cyclone has a cyclone body having an upper end, a lower end, a cyclone inlet, and a cyclone outlet. Each cyclone inlet has a top. A separately molded upper cover is mounted to the top of the single body at the upper ends. A separately molded lower cover is mounted on the single body at the lower ends of the cyclones.

Methods for surface texturing a crystalline silicon substrate are provided. In one embodiment, the method includes providing a crystalline silicon substrate, wetting the substrate with an alkaline solution comprising a wetting agent, and forming a textured surface with a structure having a depth about 1 μm to about 10 μm on the substrate. In another embodiment, a method of performing a substrate texture process includes providing crystalline silicon substrate, pre-cleaning the substrate in a HF aqueous solution, wetting the substrate with a KOH aqueous solution comprising polyethylene glycol (PEG) compound, and forming a textured surface with a structure having a depth about 3 μm to about 8 μm on the substrate.

Disclosed are compositions and methods for treating and modifying surfaces and for enhancing delivery of active agents to surfaces treated therewith, wherein the compositions comprise siloxane polymers functionalized with pendant moieties comprising two or more anionic groups, at least one anionic group being a carboxy group. When applied to a suitable surface, the present composition forms a substantially hydrophobic coating of the anionic functionalized siloxane polymer on the treated surface. These polymers effectively deposit on surfaces that have cationic sites, which are capable of forming bonds or linkages with the anionic groups of the polymer. The treated surface becomes hydrophobic due to the deposition of the anionic functionalized siloxane polymer, which then imparts a variety of end use benefits to that surface such as ease of cleaning, soil release, stain removal and prevention, conditioning, etc. The anionic functionalized siloxane polymer further acts as a carrier to deposit active agents onto the surface and to improve retention and efficacy of the active agents on the treated surface. The present compositions are useful in a variety of applications including oral care, hair and skin care, personal care, cosmetics, and fabric and hard surface cleaning and conditioning.

An autonomous floor cleaning robot includes a transport drive and control system arranged for autonomous movement of the robot over a floor for performing cleaning operations. The robot chassis carries cleaning elements arranged to spray a liquid cleaning fluid onto the cleaning surface across a cleaning width. The cleaning fluid mixes with contaminated on the floor, which become emulsified or otherwise mixed with the cleaning fluid. The robot further include cleaning elements configured to suction up waste materials and particularly the liquid waste material generated by the mixing of the cleaning fluid and contaminates.

A surface cleaning suction type appliance comprises a housing, an airstream suction source, a cyclone main body, and a dirt cup. The housing includes a main suction opening. The airstream suction source is mounted to the housing and includes a suction airstream inlet and a suction airstream outlet. The suction source selectively establishes and maintains a flow of air from the main suction opening, via the airstream inlet, to the airstream outlet. The cyclone main body is supported by the housing and is in communication with the main suction opening. The cyclone main body has a uniform outer circumference and includes a first stage separator, and a plurality of downstream second stage separators. The lengths of the second stage cyclonic separators are different for any number of adjacent pairs of separators from on pair up to all adjacent pairs of separators. The dirt cup is connected to the cyclone main body. The dirt cup includes a first particle collector and a second particle collector. The first particle collector communicates with the first stage separator for collecting dust particles from the first stage separator. The separate second particle collector communicates with the plurality of second stage separators for collecting dust particles from the second stage separators.

A surface cleaning apparatus comprises a dirt inlet, a handle, a cyclone separator having an outer wall, a top, a fluid inlet downstream from the dirt air inlet and a fluid outlet, a screen positioned around the fluid outlet such that fluid exiting the cyclone separator passes through the screen and the screen is removable through the top of the cyclone separator, and, a fluid flow motor.

A sanitation device includes a mobile body, a surface cleaning component, and a source of UV radiation. The surface cleaning component and the source of UV radiation are mounted to the mobile body, which is configured to travel over a surface. The surface cleaning component is configured to engage the surface and the source of UV radiation is configured to direct UV radiation to the surface.

The present invention relates to a block polymeric material. Typically the block polymer comprises units capable of having an average cationic charge density of about 15 or less, preferably 5 or less, more preferably from about 0.05 to about 5, even more preferably from about 0.05 to about 2.77, even more preferably from about 0.1 to about 2.75, most preferably from about 0.75 to about 2.25 units per 100 daltons molecular weight at a pH of from about 4 to about 12. The polymeric material is a suds enhancer and a suds volume extender for personal care products such as soaps and shampoos. The compositions have increased effectiveness for preventing re-deposition of grease during hand and body washing. The polymers are also effective as a soil release agent in fabric cleaning compositions. The polymeric material is also effective in oil well treating foam, fire-fighting foam, hard surface cleaning foam, shaving cream, post-foaming shaving gel, dephiliatories and as a coagulant/retention aid for titanium dioxide in paper making.

The invention discloses a miniature robot capable of walking and cleaning on vertical surfaces such as a glass curtain wall and a ceramic outer wall. The robot walks through a track provided with a sucker, the track sucker is connected with a vacuum pump, and local vacuum is formed by air extraction so as to generate negative pressure; the sucker is of a specially designed structure with an air valve to exhaust through lever action; a steering sucker is arranged in the middle of a robot chassis, a motor controls a ball screw to operate so that a robot vehicle body rotates around the axis of the steering sucker so as to steer; an ultrasonic detection and feedback device is arranged at the front end of the robot vehicle body to guarantee the robot to measure and avoid barriers in real time during the walking process; and a fog-shaped spraying device, a drum brushing and washing device and a scraping plate washing device are installed on the robot vehicle body to clean the wall surface during the walking process of the robot. By means of the multi-technology multi-science combination, namely combination of a robot system function, a mechanical structure, a movement mechanism, an electronic circuit, a sensing detection, a program control and the like of the robot, the robot can reliably walk and efficiently clean on vertical surfaces such as the glass curtain wall and the ceramic outer wall.