1053results about How to "Increased versatility" patented technology

In a first aspect, the present invention provides a motor, fan and filter arrangement for a vacuum cleaner, comprising: a motor (10); a fan (20) connected to an output shaft (12) of the motor and having an axial intake; and a filter (30, 230, 330); wherein the fan (20) is arranged with its axial intake facing the motor (10); and the motor (10) is housed within the filter (30, 230, 330). Such an arrangement makes much more efficient use of space than a conventional arrangement and allows the motor to be positioned within the filter in a reversed direction in comparison to conventional arrangements, so that clear air from the filter can be drawn over the motor before encountering the fan. This also has the beneficial side-effect of cooling the motor with the filtered air.; In a second aspect, the present invention also provides vacuum cleaners (100, 200, 300) comprising such a motor, fan and filter arrangement. Preferred embodiments of such vacuum cleaners are described, including a pivotable stick vac and different hand-holdable vacuum cleaners.

A power strip is providing including a housing coupled to a first end portion of a power supply cord, the housing having an electrical receptacle mounted thereto and connected to the power supply cord, the power supply cord having a second end connectable to a power source. A current sensor is coupled to the power supply cord between the electrical receptacle and the second end for detecting electrical current flow through the power supply cord and providing an output signal that varies in proportion to the current flow through the power supply cord. A processing circuit coupled to the output of the current sensor includes a display device for displaying at least one of the current, voltage, power, and phase associated with the power supply cord at the current sensor. The display device can be remotely coupled to the power strip for positioning the display in a convenient location.

The invention provides an intelligent article delivery robot device and a control method thereof. The robot device comprises a base, a storage grid, a tablet computer, a main support bar, a second support bar, a main camera assembly and a main power supply charging plug. A hardware component works with a software system in the tablet computer. Sound source determining, voice broadcast, voice recognition, face image recognition and electromechanical motion control technologies are used to realize autonomous moving, crowd recognition, sound source recognition, human-computer interaction, storage grid switching, voice broadcast, automatic lift adjustment, automatic navigation, self-charging, autonomous home delivery and other functions of the whole machine.

A variable optical-property element includes a liquid crystal the pitch of twist is less than 60 times the wavelength of light used, so that a spatially uneven electric or magnetic field or temperature is applied to the liquid crystal to thereby form an index distribution, and the electric or magnetic field or the temperature is changed to thereby alter the index distribution. In this way, the variable optical-property element is capable of changing its optical properties as a liquid crystal lens and is used in an optical apparatus.

A method of making a facile, surface-independent, polyphenol coating is disclosed. In general, the method includes contacting at least a portion of the substrate to be coated with an aqueous solution containing one or more salts and one or more nitrogen-free phenolic compounds. Substrates of all kinds may be used, and compounds used to make the coating may include epigallocatechin-3-gallate (EGCG), epigallocatechin (EGC) and epicatechin-3-gallate (ECG), tannic acid, gallic acid, pyrogallol, and/or other nitrogen-free phenolic compounds. The coating made using the method, methods of using the coating, and kits comprising the coating precursors are also disclosed.

A method and apparatus for producing purified or ozone enriched air to remove contaminants from fluids is accomplished by exposing an air stream from a surrounding area to ozone generating ultra-violet (UV) radiation to generate ozone in a system ozone chamber. The ozone chamber is configured to reduce through-flow velocity and provide time for the ozone to mix with the air and oxidize contaminants. The air stream subsequently enters a germicidal chamber and is exposed to germicidal UV radiation to destroy bacteria and ozone in the air stream resulting in sterilized air. The radiation source may include an end-cap that interfaces guiding mechanisms to align the end-cap for power connections, and/or controls emission of ozone generating radiation to control production of ozone. Further, the system may include an additional germicidal chamber that exposes an air stream to germicidal radiation prior to treatment within the ozone chamber. Moreover, the system may be configured to include a baffling arrangement to control air through-flow velocity, or may be implemented by a cartridge arrangement, whereby a cartridge housing the chambers and radiation sources is periodically replaced. The system may further be configured for installation within a wall or ceiling, or may be utilized to remove contaminants from and/or ozonate liquids. In addition, the air sterilization systems may be utilized within air treatment systems to remove contaminants from an air stream within these systems.

An aircraft center wing box digital assembly positioning system and positioning method are provided. A digital flexible positioning tool is divided into a bed body unit, a front spar positioning unit,a rear spar positioning unit, a left wing rib conformal unit, a right wing rib conformal unit, an upper tooling positioning pressing unit and a lower tooling positioning pressing unit according to functional modules. At first, an automatic positioning method is performed with the skeleton as the reference; skeleton parts such as the front spar, the rear spar and the wing rib of the large-scale central wing box are accurately positioned, and then the upper panel, the low panel and the longitudinal spar are positioned with the skeleton as a reference until the whole positioning process of the central wing box is completed. The digital assembly positioning system and positioning method are capable of accurate positioning, automatic control, multi-functional integration, and flexible design of large-scale center wing boxes.

The invention provides a combined-type thermal-oxidation igniting process nozzle for gasifying solid powder fuel. The combined-type thermal-oxidation igniting process nozzle for gasifying the solid powder fuel is characterized by comprising a central passage, a thermal-oxidation spray gun fuel passage circularly shaped is uniformly arranged outside the central passage, a side gasifying agent inlet is reserved on the outer wall of the thermal-oxidation spray gun fuel passage, a thermal-oxidation spray gun burner is arranged inside the thermal-oxidation spray gun fuel passage, and a gasifying agent spraying nozzle is arranged on the head portion of the thermal-oxidation spray gun burner. An outer metal wall of a thermal-oxidation passage coaxial with the central passage is arranged outside the thermal-oxidation spray gun fuel passage, an inner metal wall of a cooling jacket is coaxially arranged outside of the outer metal wall of the thermal-oxidation passage, and an outer metal wall of the cooling jacket is coaxially arranged outside the inner metal wall of the cooling jacket via a middle tube wall of the cooling jacket. By the aid of the combined-type thermal-oxidation igniting process nozzle for gasifying the solid powder fuel, defects in the prior art are overcome, a start working nozzle and the process nozzle are integrated, and the whole igniting process of a gasification furnace is simplified. The combined-type thermal-oxidation igniting process nozzle for gasifying the solid powder fuel has the advantages of multiple functions, wide applications, long service life and the like.

A shock absorber, which is particularly applicable to bicycles, includes a mount body, a first cap portion, a second cap portion, and a fluid cylinder. The fluid cylinder cooperates with a valve assembly that is offset from the mount body. The first and second cap portions enclose a gas cavity or gas chamber. One of the first and second cap portions is interchangeable with other caps so as to alter the performance of the shock absorber by altering the size of the gas chamber. The replaceable cap cooperates with the mount body such that it can be replaced without removing the shock absorber from a bicycle.

A hands-free rescue/carrying apparatus includes at least one body-worn garment having a front facing side and a rear facing side, and at least one adjustable lift mechanism attached to the at least one body-worn garment. The at least one lift mechanism is attachable to an article to be supported and is designed to provide a substantial mechanical advantage as to the weight of the article, when employed. Advantageously, the garment having the at least one lift mechanism permits selective dynamic lift capability of the article to which it is attached and secured in a substantially hands-free manner.

The invention relates to a device for simulating a sedimentation rule of a proppant in a complicated fracture network formed by volume fracturing. The device comprises a main fracture composed of a fence, second-grade fractures vertical to the main fracture and third-grade fractures which are parallel to the main fracture and are connected by the second-grade fractures. The whole structure of the device can sufficiently simulate fracture networks with different types of underground reservoir stratum so that the versatility of the device is added. The visualization of the device is good for tracking and observing an experiment phenomenon and recording data; and the experiment efficiency is extremely improved and the device is convenient to repair and maintain. A research result obtained by using the device has a certain reference value for volume fracturing theoretical researches and field application.

The invention provides a vacuum switch tube comprising an insulated case, an upper end cover, a lower end cover, a fixed conductive base, a first movable conducting rod and a second movable conducting rod, wherein the upper end cover is hermetically arranged at the upper end of the insulated case; the lower end cover is hermetically arranged at the lower end of the insulated case; the fixed conductive base comprises at least one joint and is fixedly arranged in the insulated case; the joints penetrate through the insulated case; the fixed conductive base is electrically and fixedly connected with a first fixed contact and a second fixed contact respectively; the first movable conducting rod penetrates through the upper end cover and first corrugated pipes connected with the inner sides of the upper end cover and is electrically and fixedly connected with a first movable contact arranged in a first vacuum chamber; and the second movable conducting rod penetrates through the lower end cover and second corrugated pipes connected with the inner sides of the lower end cover and is electrically and fixedly connected with a second movable contact arranged in a second vacuum chamber. The vacuum switch tube provided by the invention can realize three positions, thus improving the versatility.

The invention discloses a bast fiber fabric with a protective function and a preparation method thereof. The preparation method comprises the preparation steps of bast fiber pretreatment, oxidation treatment, chitosan acetic acid solution preparation, chitosan-modified oxidized bast fiber fabric preparation, chitosan-modified oxidized bast fiber fabric composite finishing through tea polyphenol and the like. According to the preparation method, bast fiber is selectively oxidized through periodic acid or periodate, a generated active group aldehyde group -CHO can generate an imidization reaction with chitosan containing -NH2, chemical bonding is generated between the aldehyde group and chitosan containing -NH2 under the condition that no cross-linking agent or other chemical additive is used, therefore, the tea polyphenol adsorption capacity of the fabric in the subsequent finishing process is enhanced, combination between tea polyphenol and the bast fiber is promoted, and the condition that other reagents are used in the tea polyphenol function finishing process is avoided. The bast fiber fabric has the good multifunctionality such as the antibacterial property, the wrinkle resistance and the ultraviolet resistance; the preparation technology of the bast fiber fabric is simple and convenient to operate, clean production is achieved in the preparation process, and the requirements of ecological textiles are met.

The to-be solved problem of the invention is to provide a high-elastic-modulus composite polyester fibre and a preparation method thereof; by employing a skin-core type unsymmetrical structure, high elasticity of the structure is realized; and by adding antibacterial functional master batches into a skin layer, multifunctionality of the fiber is realized. The fibre consists of the skin layer with an antibacterial functional material and a core layer; wherein the skin layer employs a PTT polyester composite composition accounting for 20 wt%-60 wt% of the total weight of the composite fiber, and the core layer employs conventional PET polyester. The preparation method comprises: (1) pre-kneading a nanometer antibacterial agent and PPT polyester chips, melting and blending to obtain the nanometer antibacterial master batches; (2) solving problems of crystallization stability and uniformity in drying process of PTT chips and PET polyester chips, and controlling the water content at 25 ppm; and (3) performing melt conveying on the dried skin-layer PTT chips and core-layer PET chips respectively by a double screw extruder group and a single screw extruder group.

A brake system includes: a brake actuating element; a first piston-cylinder unit having a first piston displaceable by the brake actuating element actuated by at least a predefined minimum actuation such that a first internal pressure in the first piston-cylinder unit is increased; at least one wheel brake cylinder having a brake pressure which is increased using the increased first internal pressure; a first brake booster; and a second piston-cylinder unit having a second piston displaceable by the first brake booster so that a second internal pressure in the second piston-cylinder unit is increased, and to which the at least one wheel brake cylinder is hydraulically connected such that the brake pressure of the at least one wheel brake cylinder is increased by the increased second internal pressure.

An apparatus for storing a firearm, particularly a long gun, in a secure manner but in which the firearm is readily available to an authorized person. The apparatus may be mounted on a vertical wall. A door assembly is pivotally connected to a main housing and can be locked in a closed position to secure the interior of the housing against unauthorized entry. Adjustable access inhibitor components allow the apparatus to be customized for use with a user-selected model of firearm without compromising security. Movable components within the housing interior hold the selected firearm in a desired position.