7426 results about "Small hole" patented technology

An improved comfort product that uses an airflow through a heat exchanger and into the comfort product to selectively heat or cool an occupant has a support layer contacting and supporting a channel layer. The channel layer has at least one channel with an opening to accept air. The channel layer contacts and supports an engineered distribution layer that has numerous small holes making it air permeable. The engineered distribution layer contacts and supports an air permeable comfort layer that is of such size and shape to support an occupant of the comfort product. The comfort product also has a heat exchanger assembly for supplying heated or cooled air to the opening in the channel. The heat exchanger assembly includes an air intake having an intake fan, an exhaust outlet and a heat exchanger for selectively heating or cooling air flowing through the heat exchanger resulting in selectively heated or cooled supply air and exhaust air. The intake fan forces air through the heat exchanger where some of the air is selectively heated or cooled to be supplied to the comfort product and some air is used as exhaust air (to remove the unwanted heat if the supplied air is cooled or to warm the exhaust side of the heat exchanger if the supply air is warmed.). The selectively heated or cooled supply air then moves through the channels in the channel layer and the exhaust air exits through the exhaust vent. The selectively heated or cooled supply air then moves through the engineered distribution layer where the numerous small holes diffuse the air and then the selectively heated or cooled air then moves through the comfort layer where the air is further diffused and where the selectively heated or cooled air can selectively heat or cool an occupant of the comfort product.

A mechanical bone tamping device for osteoporotic repair include a pair of arms mounted on a spreading mechanism such as a screw jack. The mechanism is introduced into a small hole in a vertebra through a cannula, and is then operated to spread the arms apart, forming a cavity which may be filled with cement to fortify the vertebra.

Memory cells comprising: a semiconductor substrate having a source region and a drain region disposed below a surface of the substrate and separated by a channel region; a tunnel dielectric structure disposed above the channel region, the tunnel dielectric structure comprising at least one layer having a small hole-tunneling-barrier height; a charge storage layer disposed above the tunnel dielectric structure; an insulating layer disposed above the charge storage layer; and a gate electrode disposed above the insulating layer are described along with arrays thereof and methods of operation.

A honeycomb structured body of the present invention is a honeycomb structured body in which a plurality of porous ceramic members are combined with one another through an adhesive layer, each of the porous ceramic members having a plurality of cells which are allowed to penetrate in a longitudinal direction with a wall portion therebetween and either one end of which is sealed, with a catalyst supporting layer being adhered to said wall portion, wherein pores formed in said porous ceramic member are constituted by large pores having a relatively large pore diameter and small pores having a relatively small pore diameter, and supposing that: the thickness of the catalyst supporting layer is X₁ (μm), and the value, obtained by multiplying the porosity (%) of said porous ceramic member by the ratio (the average pore diameter of said large pores/the average pore diameter of said small pores) of the average pore diameter of said large pores to the average pore diameter of said small pores, is Y₁, these X₁ and Y₁ are allowed to satisfy the following inequalities (1) and (2):

6X₁+80.5≦Y₁≦6X₁+230.5  (1)

6X₁+330≦Y₁≦−6X₁+474  (2).

An object three-dimensional outline measurement device and a measurement method are disclosed, the device is composed of a laser diode, a lens, an aperture diaphragm, a two-dimensional Dammam grating, a cylindrical mirror and an area array CCD camera, a transmission line and a computer, the connection relationship therebetween is as below: a beam emitted by the laser diode passes through the lens, the aperture diaphragm, the two-dimensional Dammam grating, and the cylindrical mirror sequentially to form one-dimensional projection array stripes, which illuminates the surface of an objective to be measured, the area array CCD camera collects the grating projection strips modulated by three-dimensional digital shape on the surface of the measured objective and outputs the strips to the computer via the transmission line, the computer includes an image collecting interface, image collecting software and three-dimensional measurement information reconstruction algorithm software. The invention has, by utilizing the Fourier transform three-dimensional outline measurement structure, the advantages of high energy utilization rate, simple measurement structure, high measurement precision, convenient computer reconstruction information processing and great easiness for operation.

The invention is a drinking vessel that keeps coffee or other hot beverages hot, yet readily drinkable. The basic design of the invention is an inner beverage vessel and an outer beverage chamber with an insulator chamber of air between them. There is a small hole in the bottom of the inner beverage vessel which allows the contents to flow into the outer beverage chamber. When the drinker tips the cup to drink, beverage flows from the inner beverage vessel to the outer beverage surrounding the cup and pours out of a mouthpiece. The amount of liquid that fills the outer beverage chamber quickly cools enough to drink, but still remains warm. The insulator chamber keeps the beverage in the inner beverage vessel hot for a longer period of time. The lid for the cup is sealed to keep the contents warm but has a small pinhole to eliminate the build-up of a vacuum.

A paper punch has an inner punch and an outer punch movably received with respect to each other. The outer punch has a first contour punch so as to be able to punch a hole in a piece of paper with the same contour as that of the first contour punch, and the inner punch has a second contour punch so as to punch a small hole in a piece of paper with the same contour as that of the second contour punch. Because the second contour punch moves first and the first and the second contour punches are placed concentrically, a piece of paper is then able to be punched twice by the first and the second contour punches to have an attractive shape.

A transparent cube with picture displaying function comprising a transparent body and a plurality of transparent boards surrounded the transparent body, characterized in that the four side walls of the transparent body are provided with at least two small holes containing small magnet therein, and the inner side wall of the four transparent boards are provided with at least two small holes corresponding to the small holes of the transparent body and also containing a small magnet therein; when the transparent body contacts with the four transparent boards face to face, the transparent body is firmly secured together with the four transparent boards as a result of attraction force between the small magnets, and a picture (or photograph) is inserted in between the contact face of the transparent body and the four transparent boards such that the transparent cube can provides four displayed pictures for appreciation.

A method and device for measuring a concentration of a preselected gas in a gas sample are disclosed. The device comprises a Herriott type multipass cell (10) having a center axle (74) and a housing (80A, 80B) surrounding and spaced from the axle to provide a tubular sample cavity (84). The gas sample is pumped through the sample cavity via apertures (154, 156) provided in opposed ends of the axle. A first mirror (44) and a second mirror (46) are supported at opposed ends of the axle. A light source, e.g. a laser or LED, is provided for emitting a light beam into the sample cavity via an entry aperture (30) in the first mirror, the light beam having a wave length at which the preselected gas strongly absorbs. The beam is reflected between the mirrors for a number of times before exiting the cell via an exit aperture (48) in the second mirror and impinging on a detector (52). The device further comprises a reference detector (32) for monitoring the intensity of the unattenuated light beam and a detector for detecting the intensity of light transmitted through the second mirror after a single pass through the cell. The light source is operatively connected to a heat control assembly having a heat sink and the gas sample is passed said heat sink to augment temperature control of the light source.

A lighter comprises a lighter housing, a gas container for storing liquid inflammable gas, a combustion device connected to the gas container, and an igniter for igniting inflammable gas in the combustion device. The housing includes an upper cover and a case, wherein one side of the upper cover includes a protuberance forming a small hole thereon; a connector disposed below the protuberance of the upper cover for connecting the upper cover and the case, wherein the connector includes a recess portion coupling with the protuberance and having transverse holes on both sides of the recess portion; and a bolt for rotationally connecting the protuberance and the recess portion; wherein the case has at its edge port a longitudinal groove connected to the connector and having an opening at the edge port of the groove to couple with the protuberance of the upper cover.

The invention contemplates a strainer based upon a four-way, two-position rotary cylindrical plug valve having a hollow plug. The normal entry port for the sealing plug of the plug valve is a circular radial hole passing from the exterior of the plug into the interior cavity of the plug. The normal exit port for the sealing plug is a regular array of small holes across from and coaxial with the normal entry hole. The ports for the valve body are in two pairs positioned at 90° from each other, with the axes of the ports lying in the same transverse plane as the ports of the valve plug.

The invention relates to a three-dimensional rapid prototyping method and device based on pulse small hole droplet injection and belongs to the technical field of three-dimensional rapid prototyping. The three-dimensional rapid prototyping method is characterized in that a heater is used for heating a crucible until the metals in the crucible are in the molten state, a positive differential pressure value is set between the interior of the crucible and a vacuum chamber, simultaneously a piezoelectric ceramic driver applies certain pulse signals to piezoelectric ceramics to lead the piezoelectric ceramics to drive a transmission bar to generate longitudinal infinitesimal displacement, the infinitesimal displacement acts on the metal melt at the bottom of the crucible, tiny droplets are injected from small holes arranged at the bottom of the crucible, one droplet can be formed at the position of the small holes once the piezoelectric ceramics move for one time, size data of the droplets are timely analyzed through a photograph system, further the optimum parameter is obtained through adjustment; and the droplets fall to a moving three-dimensional motion platform to be deposited, and accordingly needed metal parts are formed through depositing. The three-dimensional rapid prototyping method and device based on pulse small hole droplet injection have the advantages that the pulse small holes inject to generate the metal droplets with uniform and controllable sizes, prototyped products are fine and uniform in microstructure, the prototyping process is strong in controllability, and the formed parts are high in accuracy.

The invention relates to a test device and a method for simulating acid etching crack flow guide capability. The test device consists of a liquid storage tank, a diaphragm pump, a pipeline electric heating sleeve, a flow meter, a flat plate clamping device, a pressure return valve, a condensing pipe, a waste liquid tank, a data collection and control panel and the like, wherein the inner side of the clamping device is provided with a temperature sensor and a pressure sensor, both ends of the lamping device are provided with small liquid inlet holes and small liquid outlet holes, the inside of the clamping device is provided with a liquid inlet piston and a liquid outlet piston, a rock core chamber is arranged between the liquid inlet piston and the liquid outlet piston, the clamping device is connected with a pressure machine, and the diaphragm pump, the pipeline electric heating sleeve, the flow meter, the temperature sensor and the pressure sensor are all connected with the data collection and control panel and a computer. The test method comprises the following steps; cutting the rock into rock core samples conforming to the standard flow guide chamber, and sealing and curing the rock core samples; placing the rock core samples into the rock core chamber; adopting a gasket for simulating the crack width; sequentially opening a clear water storage tank and an acid liquid storage tank; starting the computer, and inputting experiment parameters; and calculating the flow guide capability of the acid etching cracks of the rock core samples. The invention can simulate the real conditions of the underground acid etching crack forms, and can meet the requirements of the acid etching crack flow guide capability test under different environment conditions.

A plant cultivation mat (or, grass growing mat) to be spread over artificial ground, which permit walkers to tread on the soil filled in the mat as well as the plant grown in it. The plant cultivation mat comprises a cell disposed in a recessed form with the top part thereof being open upward and with a water-passage port being perforated in the vicinity of the bottom part thereof; and pillar member erected within the cell to a height not exceeding the upper end part of the lateral wall of the cell. Also, this plant cultivation mat comprises a cell disposed in a recessed form with the top part thereof being open upward and with a water-passage port being perforated in the vicinity of the bottom part thereof; and one or a plurality of pillar members erected within the cell to a height not exceeding the upper end part of the lateral wall of the cell; and at least one connecting rib to join the cells together. The pillar member should preferably have a small hole perforated in the top part thereof at an appropriate location.

The sheet with movable contacts comprises a first sheet formed by an insulating film, the first sheet having a plurality of receptacle holes and with adhesives applied respectively to both sides of the first sheet; a plurality of domed, metallic, movable contacts respectively received in the receptacle holes and having central small holes; and a second sheet formed by an insulating film and affixed onto the first sheet so as to cover upper surfaces of the plural movable contacts, wherein the first sheet has connecting slots formed therein for connecting adjacent such receptacle holes with each other, and each of the receptacle holes is larger than each of the small holes formed in the movable contacts and smaller than an external form of each of the movable contacts.

An impact-absorbing protective structure comprises one or more compressible cells. Each cell is in the form of a thin-walled plastic enclosure defining an inner, fluid-filled chamber with at least one small orifice through which fluid resistively flows. Each cell includes an initially resistive mechanism that resists collapse during an initial phase of an impact and that then yields to allow the remainder of the impact to be managed by the venting of fluid through the orifice. The initially resistive mechanism may be implemented by providing the cell with semi-vertical side walls of an appropriate thickness or by combining a resiliently collapsible ring with the cell. After the initially resistive mechanism yields to the impact, the remainder of the impact is managed by the fluid venting through the orifice. The cell properties can be readily engineered to optimize the impact-absorbing response of the cell to a wide range of impact energies.

The present invention is directed toward an intragastric device used to treat obesity that includes a wire mesh structure capable of changing from a compressed pre-deployment shape to an expanded post-deployment shape with a greatly increased volume. The post-deployment shape contains a light weight at the top and a heavier weight at the bottom to ensure proper positioning within the stomach. In the post-deployment shape, the device contains larger spaces in the upper portion and smaller spaces in the lower portion to sequester food and delay gastric emptying. Alternatively, the device can be enveloped by a membrane containing larger holes at the top and smaller holes at the bottom to sequester food and delay gastric emptying. The device has a dynamic weight where the weight of the device in the pre-feeding stage is less than the weight of the device in feeding or post-feeding stage.

The invention discloses an OLED display panel and a display device. An image sensor is arranged below OLED devices; and light shading layers, each of which has at least one small hole imaging region,are arranged between the image sensor and the OLED devices. With small hole imaging regions corresponding to gaps among all OLED devices and being staggered with shading components in signal routing units and control devices in the light shading layer, imaging of an object above the OLED display panel is carried out at the image sensor; for example, when a finger is placed above the OLED display panel corresponding to the small hole imaging region, fingerprint acquisition and recognition are realized. Therefore, the fingerprint recognition function is realized in the display area of the OLED display panel; and thus the attached area of the whole display device can be reduced and a frameless design can be realized.

A bone anchor device for attaching connective tissue to bone comprises a disk adapted for insertion into a portion of bone to which the connective tissue is to be attached. The disk is movable between a bent orientation for presenting a smaller cross-section and an expanded orientation for presenting a larger cross-section. The bent orientation is utilized for inserting the disk through a small hole into a region of cancellous bone beneath the cortical bone layer, after which the disk is actuated to its expanded orientation so that it will be permanently anchored in the cancellous bone, as it will be too large to return proximally through the hole in the cortical bone layer. Two embodiments are disclosed. In a first embodiment, the disk is initially formed in the expanded orientation, of spring steel. In a second embodiment, the disk is initially formed in the bent orientation, and spring steel is not required.

An embodiment of the invention discloses an under-screen fingerprint identification device and electronic equipment, wherein the device can settle a problem of an influence of an LCD backlight moduleto fingerprint optical imaging and improves fingerprint imaging quality. The under-screen fingerprint identification device is suitable for the electronic equipment with a liquid crystal display screen and comprises the components of a micro-lens array which is used for being arranged below the backlight module of the liquid crystal display screen; at least one light blocking layer which is arranged below the micro-lens array, wherein the light blocking layer has a plurality of light passing small holes; and an optical detecting array which is arranged blow the light blocking layer, wherein the micro-lens array is used for focusing an optical signal in a specific direction of the backlight module to the plurality of light passing small holes and transmits the optical signal in a non-specific direction of the backlight module to the light blocking area of the light blocking layer, wherein the optical signal in the specific direction is transmitted to the optical detecting array throughthe plurality of light passing small holes.

An infusion beverage brewing system includes a container and an infuser. The infuser is positioned in a liquid, such as hot water, and has an infusing chamber for containing infusible materials, such as tea leaves. A plunger includes a piston with a peripheral seal and flap valves. After a brewing time has elapsed, an individual pushes on an operator to move the piston past a perforated wall portion of the infusing chamber. When the piston reaches a solid wall portion at the bottom of the infusing chamber, the flap valves open to allow liquid to escape. However, small apertures aligned with the flap valves prevent the passage of the infusible material. Consequently the infusible material is isolated from the liquid when the piston reaches a solid bottom wall portion of the infusing chamber.

The invention relates to a negative pressure-based device and a negative pressure-based method for manufacturing porous textures by laser sintering and quick molding. The device comprises an X-Y workbench, wherein a pair of guide rails is arranged on the workbench, and the guide rails have a powder spreading roller and a power spreading groove which can move reciprocally along the guide rails; the X-Y workbench is provided with a molding tank, and a molding workbench capable of moving vertically is arranged in the molding tank; the molding workbench consists of a screen with holes distributed densely and a carriage, and a negative pressure chamber is formed on the lower surface of the molding workbench; the bottom end of the negative pressure chamber is connected with a screw and a servo motor in turn; an absorption tube is communicated with the negative pressure chamber through an opening; and the other end of the absorption tube is connected with a filter and a vacuum pump in turn. In the invention, based on a negative pressure absorption principle, powder which is not sintered on each layer is removed and recycled through an absorption tube; and through layer-by-layer absorption, the powder which is not sintered and solidified is cleaned completely, while the sintered and solidified powder is continuously stacked and overlaid to form parts, so that the manufacturing of the porous texture with an aperture of less than 1mm is realized through selective laser sintering and quick molding.

A synthetic pet chew toy and scent-training aid, resembling desired mushroom species, that is formed of nontoxic, elastomeric materials, and a method for training one or more dogs to detect desirable fungi species, terrestrial or subterranean, using the toy as a scent-training aid. The toy can be formed with a hollow interior and with a plurality of small holes opening in the top and/or sides of the toy to form channels for scent dispersal to the ambient air. A threaded, opening at the base of the toy, into which a removable, threaded plug can be inserted, allows the hollow chamber to be filled with dried mushrooms, fresh mushrooms, or sponge/foam/cotton fiber soaked in mushroom extract, for use as a dog scent-training aid to locate wild-growing fungi. The pet chew toy can be filled with food treats or catnip for scent-related games like “hide and seek”, or bells for auditory enticement.

The invention provides a holding jig for supporting and fixing a solid material capable of being foamed by application of heat in a cavity of a hollow structure. The holding jig may be provided with a plate-like base body made smaller in diameter than the cavity of the hollow structure, a holding part that is provided in a predetermined width in the form of a ring on the periphery of one side of said base body and supports one side of the foamable material, a step part with predetermined height, which is projected in the form of a ring at the inner peripheral end of said holding part and supports the inner peripheral surface of the foamable material, and an attaching means with which the base body can be freely attached to or detached from the hollow structure. The holding part can be provided with a plurality of small holes that open from one side to the other side of the base body, preferably in a net or lattice pattern. The holding jig may have one or more extensions containing approximately U-shaped foaming control walls that assist in directing expansion of the foaming material towards corners of the hollow structure.

A method of welding metal components together including moving a laser beam in a first direction along an interface between a pair of metal components such that in the vicinity of the focused beam, metal from each component is vaporized to produce a keyhole in a pool of molten metal. The laser beam is oscillated in a direction different from (e.g., transverse to) the first direction such that the keyhole oscillates through the pool of molten metal and molten metal fills into the keyhole as the position of the keyhole changes. A laser welding apparatus achieves oscillation of the laser beam using optical elements in the path of the laser beam, for example trepanning optics located within an expanded portion of the laser beam.

A precursor composition for the production of granulated ceramic material, particularly for ceramic proppants, comprises 20 to 55% by weight of magnesium orthosilicate, 20 to 35% by weight of MgO, and 2.5 to 11% by weight of Fe₂O₃. The resulting lightweight proppant material shows high mechanical strength. To further decrease the specific density of the proppant, the formation of small pores can be increased by adding 0.3 to 2.4% carbon as a gas-forming agent.

A binary type diffractive optical element for scalar optics uses a composite artificial material comprising, in a first portion Ma₁, microstructures according to a first geometry for which the effective index decreases with the fill factor and, in a second portion Ma₂, microstructures according to a second geometry for which the effective index increases with the fill factor. In one example, a composite artificial material is thus formed by hole type microstructures over a first portion, the smallest hole giving the maximum effective index value of said composite artificial material, and pillar type microstructures, the smallest pillar giving the minimum effective index value of said composite artificial material.

The invention discloses a preparation method and a device of semi-solid slurry. Three processes of air current stirring, electromagnetic vibration and addition of heterogeneous nucleating agents are comprehensively utilized by the method. A graphite head with holes is connected with a hollow stirring rod, and a rotating motor drives the stirring rod to rotate through gear transmission and drives the graphite head to rotate; gas passes through a sleeve barrel and reaches the graphite head through the hollow stirring rod, and then, the gas overflows out of small holes, thereby realizing the purposes of blowing and stirring the molten metal in a rotating way; an electromagnetic vibration table can realize electromagnetic vibration on the molten metal in a crucible; the heterogeneous nucleating agents are added into the molten metal to promote further spheroidization and refinement of slurry tissues; after the molten metal is smelted, the graphite head is inserted into the molten metal for blowing and stirring the molten metal in a rotating way; and simultaneously, the molten metal is vibrated, and the heterogeneous nucleating agents are added through a powder feeding pipe, thereby preparing the semi-solid slurry with round and smooth primary grains. The prepared semi-solid slurry has the advantages of purity, no pollution, simple used equipment, easy control of process parameters, short pulping processes, small energy consumption and low cost.

The invention discloses a renal artery radio frequency ablation catheter as well as a manufacturing method and an application method thereof, and aims to solve the technical problem of reducing the blood pressure of a patient with refractory hypertension. The renal artery radio frequency ablation catheter comprises a sheath tube and an ablation catheter loaded in the sheath tube, wherein a small hole is formed on the wall of the distal end of the sheath tube and an ablation electrode of the ablation catheter extends out of the small hole. The manufacturing method provided by the invention involves in the independent manufacturing of the sheath tube and the ablation catheter. The application method provided by the invention comprises the following steps: the sheath tube and the ablation catheter are delivered into a renal artery through a femoral artery, and the ablation electrode is pushed to reach the position of the small hole of the sheath tube and then move out of the sheath tube to ablate the sympathetic nerves in the renal artery. Compared with the prior art, the sheath tube is loaded into the renal artery, and the ablation catheter extends out of the small hole of the sheath tube to ablate the sympathetic nerves on the inner wall of the renal artery one by one so as to destroy the sympathetic nerves dominating the kidney, so as to achieve the purpose of treating refractory hypertension by ablation of the sympathetic nerves in the renal artery.

The invention relates to a multi-stage multi-aperture ceramic dielectric gas fuel inflamer which includes an inflamer shell, a dust-removing wire netting or a metal brush, an air pipeline, a premixing chamber and a fuel gas pipeline. The invention is mainly characterized in that the inflamer shell is divided into an upper part and a lower part with a multi-aperture plate as a boundary. The inner part of the empty cavity at the upper part of the inflamer shell is sequentially provided with a ceramic multi-aperture dielectric of the large-aperture area which is arranged above a ceramic multi-aperture dielectric of the small-aperture area and the ceramic multi-aperture dielectric of the small-aperture area is arranged on the multi-aperture plate. The dust-removing wire netting or the metal brush is arranged under the multi-aperture plate and in the inflamer shell. The multi-aperture plate is imbedded into the middle of the upper and lower parts of the inflamer shell. The surrounding of the multi-aperture plate extends to the outside of the inflamer shell. The invention has the advantage that the multi-stage multi-aperture ceramic dielectric gas fuel inflamer has a higher thermal value range, thereby both the gas of a low thermal value or bum gas fuel and the gas of a higher thermal value can be burnt. The multi-aperture plate added in the inflamer has played a good role of radiating and can effectively prevent backfire or explosion.