37results about How to "Free from contact" patented technology

A system for monitoring the material changes in a structure through the use of monitoring instruments (40) is shown in Figure 1. The instruments (40) have at least one sensor (16, 48, 50, 160) with electrodes (42, 44, 52, 54, 56) in contact with the surrounding materials and electronics that are contained within the instrument. The sensor signals are converted to digital and transmitted to an external data logger or computer for display of the signals. The connection between the microcontroller (30) and the data logger can be either through hardwire (60) or RF. Power is provided to the electronic sensors through either external or local methods. A power management system (16) can be used to place the electronics in sleep mode when not in use. The electronics are encapsulated within potting material within an instrument case (600) that is manufactured from a material having a flexural modulus equal to, or greater than, the surrounding material to prevent mechanical failure of the device before failure of the surrounding material. The case has protective trays (540, 560) to protect the electrodes (42, 44, 52, 54, 56) and rounded adjacent connection lengths to prevent the case from developing cracks.

The invention relates to shipbuilding, and more specifically to the icebreakers and tugboats intended for operation in ice in shallow water conditions. The proposed invention is aimed to improve maneuverability of the ship running both ahead and astern in constrained environment in ice and in open water, as well as to improve its icegoing capabilities and to effectively handle air penetration to the operating AZT propellers and ship propulsors. For this purpose the icebreaker intended for operation preferably in shallow freezing waters comprising a hull with a sled-like stern overhang having flat bottom and ice protection shield along the perimeter of the overhang, and podded propulsion system disposed in the overhang and comprising two side propulsors mounted on the shafts symmetrically to the ship's CL, and arranged with regard to hull height so that the propulsor's tip edges do not protrude beyond the ship's base plane and design waterline at the propellers' location, and, according to the invention, is fitted with two 360-degree azimuth thrusters (AZT) equipped with pulling propellers mounted on the AZT shafts in front of their pods with blade tip edges not protruding beyond the base plane and arranged symmetrically to the ship's CL displaced sternward in such a way that the distance between the disks of AZT propellers and disks of side propulsors is not greater than the diameter of propulsor and the 360-degree turn of azimuth thruster about its axes with no contact to ship's propulsors is provided. In DWL area, the ship's stern overhang is of wedge-type icebreaking shape with 90 DEG-180 DEG wedge angle along the DWL with its surface being inclined at no less than 30 DEG to the vertical. An ice protection shield with wedge-shape cross section does not protrude beyond the ship's hull and is formed so as to extend in the bow direction beyond the disks plane of ship's side propulsors by the value not greater than two diameters of the above-mentioned propulsors; moreover, it has height at which the lower edge of the shield in the stern protrudes upwards from the rotation axes of AZT propellers at least by half the radius of these propellers. The proposed ship intended for operation in shallow freezing water offers improved maneuverability and icegoing capabilities comparing preferably with prototype.

The invention relates to a spherical cap concave ultrasonic heat exchanger, which comprises a concave spherical piezoelectric ceramic sheet and frame, wherein the piezoelectric ceramic sheet is the concave spherical frame with uniform thickness whose working surface is concave; said piezoelectric ceramic sheet is mounted inside the frame to be fixed via compressing device; the center of piezoelectric ceramic sheet has round hole to mount the detector; the frame and the compressing device have fixing function, to avoid the back of piezoelectric ceramic sheet being contacted with couple liquid. The invention can avoid the defects of present technique, improve the focus property of ultrasonic wave, and reduce the sonic wave consumption, with small focus.

The invention belongs to the fields of production aluminum oxide from coal ashes and metallurgy of aluminum and particularly relates to a method for extracting composite aluminum oxide from the coal ashes. The composite aluminum oxide can be used for producing an aluminum-silicon-based alloy as a partial substitute of a main raw material aluminum oxide of an aluminum electrolysis cell. A main scheme of the invention is as follows: optional constituents such as aluminum oxide (Al2O3) and silicon oxide (SiO2) in the coal ashes are not needed to be extracted respectively, only are the unused constituents in the coal ashes removed; or the oxides of some optional constituents are added into constituents of the to-be-produced aluminum-silicon alloy, so that the composite aluminum oxide containing aluminum oxide, silicon oxide and other optional constituents can be obtained; and the composite aluminum oxide can be used for replacing part of the main raw material aluminum oxide of the aluminum electrolysis cell to produce the aluminum-silicon-based alloy. The division for the optional constituents and the unused constituents of the coal ashes can be determined according to the chemical constituents (the chemical constituents of the coal ashes obtained by blending several coal ashes) of the coal ashes and the constituents of the produced aluminum-silicon alloy.

The present invention relates to a brewing apparatus for extracting a portion capsule, having a first brewing chamber element and a second brewing chamber element, wherein the first and/or the second brewing chamber element can be moved in an axial direction between a loading position, in which the first and the second brewing chamber element are spaced apart from each other, and an extraction position, in which the first and the second brewing chamber elements form a substantially closed brewing chamber, and wherein the first brewing chamber element has at least one first perforation means for perforating the portion capsule, which perforation means is arranged along a gravitational field of the Earth below a horizontal plane extending substantially at right angles to the gravitational field and centrally through the brewing chamber.

The invention provides a nanosheet field effect transistor and a preparation method thereof, and the method comprises the steps: forming a nanosheet layer and a sacrificial layer on a semiconductor substrate, forming an insulation isolation structure in the nanosheet layer and the sacrificial layer, removing the sacrificial layer through dry etching, etching the insulation isolation structure, andforming a nanosheet supporting part; forming continuous gate insulating layers on the surfaces of the nanosheet and the nanosheet supporting part, and forming a second gate insulating layer between the gate insulating layers on the outer sides of the connecting parts, and forming a metal gate between the gate insulating layer and the second gate insulating layer. According to the invention, the sacrificial layer is removed and the insulation isolation structure is etched to form the nanosheet supporting structure in the same equipment, so the transportation or movement of the structure is avoided, and the nanosheet is prevented from being damaged due to factors such as physical vibration and the like. And the stability of the nanosheet is further improved by the gate insulating layer. Inaddition, dry etching is adopted in the method, and the damage, caused by chemical reagents, to the nanosheet is avoided.

The invention discloses an ultrasonic cleaning device capable of automatically drying. The ultrasonic cleaning device comprises a machine shell, wherein a working cavity with a downward opening is arranged in the machine shell, a cleaning device body is arranged below the working cavity, a cleaning basket is arranged in the cleaning device body, an placing channel with a rightward opening is arranged in the right wall of the working cavity and above the upper portion of the cleaning device body in a communicating mode, a drying device is arranged in the left wall of the working cavity and on the upper side of the placing channel, a lifting device is internally arranged above the working cavity, and a hook locking device is arranged in the lifting device. Another cleaning basket can be placed in the working cavity from the placing channel and cleaned while the cleaning basket is dried, so that the utilization rate is increased; according to the ultrasonic cleaning device, the cleaning operation can be carried out in a large scale, the drying operation can be completed, personnel can be prevented from making contact with cleaning fluid; the cleaning fluid can be heated, so that the articles with oil stains are more convenient to clean; the articles have the residual temperature in the drying process, so that the drying energy consumption is reduced; and the cleaning and the drying can be carried out at the same time, so that working resources and the time are saved.

The invention provides a mopping cleaning device for an intelligent cleaning robot, and the mopping cleaning device comprises a cleaning roller assembly that is used for mopping floor after pre-cleaning, a roller driving device that is used for driving the cleaning roller to rotate, a water trough covering the surface of the cleaning roller, a water pump assembly that is used for providing power for a cleaning liquid walking loop, and a water tank assembly that is used for providing cleaning liquid for the water trough. The cleaning roller assembly comprises a roller lining and the cleaning roller attached to the outer surface of the roller lining; the water trough comprises an abutting end and an extrusion end; in the cleaning process, the abutting end of the water trough and the extrusion end of the water trough are located on the same side of the radial vertical plane passing through the center axis of the cleaning roller; the position of the abutting end is higher than that of the extrusion end; the water tank assembly comprises a clean water tank combination and a sewage tank combination; the sewage tank combination further comprises an exhaust device arranged at the upper part of the sewage tank; and an exhaust port of the exhaust device communicates with the surface of the cleaning roller.

The cleaning-off device is used in the process of cleaning boron nitride off a grindstone. The grindstone (14) is in the region of a separating element, and liquid or gas (16) is applied in the region of the grindstone by means of a jet element (17), which applies a cleaning jet (18) of liquid or gas to the grindstone parallel to the separation line.

The invention discloses a ticket vending machine with a cleaning function and a cleaning method of the ticket vending machine, wherein the ticket vending machine with the cleaning function is provided with an operation interface, a flow guide structure, a control unit, a sensor, an ultrasonic wave atomizer and an air supply device, the flow guide structure extends from the bottom of the ticket vending machine to the direction of the operation interface, and the flow guide structure is provided with an air outlet; and the distance between the air outlet and the bottom of the ticket vending machine is less than or equal to the distance between the operation interface of the ticket vending machine and the bottom, and when the sensor senses that a person is located in the preset sensing area, the control unit stops the ultrasonic atomizer and enables the air supply device to maintain operation. According to the ticket vending machine with the cleaning function and the cleaning method of the ticket vending machine, when the person wants to use the ticket vending machine in the cleaning process of the ticket vending machine, the generation of an atomized cleaning liquid can be stopped, and air is continuously supplied to blow away the atomized cleaning liquid, so that the person is prevented from inhaling or being in contact with the atomized cleaning liquid.

The invention belongs to the technical field of combination switches of kitchen and bath supplies, and particularly relates to a multi-functional faucet control device. The multi-functional faucet control device comprises a body, a valve element is placed at the bottom end of the interior of the body, a valve element rod is connected to the middle of the top of the valve element, a clamping sleeve is connected to the top of the valve element rod, and a button is connected to the top of the clamping sleeve; a transmission mechanism installed above the valve element is arranged in the body, and the outer wall of the top of the transmission mechanism is connected with a hand wheel in a meshing mode; two independent control units are arranged in a control device body, water flow can be comfortably and conveniently opened or closed by pressing a valve element button switch, a water source can be stored or drained by rotating the hand wheel, misoperation can be prevented, and use is convenient; and the device can be installed at different positions according to the requirements of users, meanwhile, the users are prevented from being in contact with sewage, the life quality is greatly improved, and the device is simple in structure, low in cost and high in practicability.

The invention relates to a covering device (42) for suction drums (9), one of compacting devices adjacent drafting units of a spinning machine, wherein the suction drums (9) are disposed coaxially on a longitudinal shaft (10) and on their axially spaced apart, opposite sides annular opening (OE), through each of which a suction source connected to a suction liner (50) projects into the interior of the respective suction drum. To the interior of the suction drums (9) to protect against contamination and uncontrolled air currents, it is proposed that the capping device (42) between the adjacent suction drums (9) is attached and from the opposite which is connected to webs (R1, R2, R3, R4) covering elements (84, 85) exists, each of the adjacent to the respective suction insert remaining annular openings (OE) of the suction drums face (9) and overlapping this at least partially.

The invention relates to a conventionally-designed can lid (1) particularly intended for drinks cans, characterised in that in order to form an opening that reseals in a liquid-tight manner, a substantially annular plastic moulded part (15) is secured to the underside of the lid surface (3) so as to enclose the opening region (4); a plastic stopper part (16) is rigidly secured to the underside ofthe tongue-tab, which can be pivoted out when opening, said plastic stopper part engaging with the moulded part (15) such that a seal is formed; and the peripheral contour of the tongue-tab (4) is positioned, preferably in the region of the moulded part (15), at a predetermined distance from the stopper part (16).