4525 results about "Air cavity" patented technology

A transmission vent assembly includes an apparatus having a central, internal passage extending therethrough. The internal passage has a larger diameter portion defining a pocket. A filter is disposed in the pocket to condense and return fluid to the transmission through the internal passage. The apparatus includes a shoulder adjacent the upper surface and a double lead thread initiating at the shoulder and terminating at a lower end. The assembly further includes a cup-shaped cap, press fittingly disposed over the apparatus. The cap and shoulder define an annular cavity and the cap and the double lead thread define first and second threaded passages. The cap includes an outward impression in the closed end which cooperates with the upper surface of the apparatus to define a connecting passage. Two bi-directional air flow paths extend between the transmission and the atmosphere through the internal passage, connecting air passage, annular air cavity, and each of the two threaded passages.

Apparatus and methods for dispensing small amounts of a viscous material onto a workpiece. The narrow-profile dispensing apparatus includes a fluid chamber, a nozzle, and a valve seat disk representing individual components that are removable from a main body of the dispensing apparatus for cleaning and/or replacement. The nozzle is coupled with the fluid chamber by a heat transfer body that may be cooled by, for example, a cooling fluid routed through an air pathway defined in the heat transfer body. The main body of the dispensing apparatus may be cooled by air exhausted from an air cavity of a pneumatic actuator regulating the movement of a needle to control the flow of viscous material in the dispensing apparatus.

A combination writing pen and stylus is disclosed. The device has an internal ink cartridge deployable through a hole in the stylus tip. The stylus tip extends from a sleeve that is formed of a conductive elastomeric material. The sleeve extends up a rigid shaft of the device such that it contacts a sufficient ground. The stylus tip may be coated with a protective material that adjusts the coefficient of friction and prevents carbon deposits on the touch screen. A sufficient contact patch is achieved to simulate a human finger so as to overcome false positives from common touch screen logic. This is done by altering tip geometries around an air cavity within the sleeve.

A sportsball includes a ball carcass having an air cavity therein, wherein the ball carcass includes two ball shells, each of the ball shells having an outer surface, a plurality of channels indented on the outer surface to form a plurality of panel contours thereon, and a contouring edge defining a starting point at one of the channels to continuously extend from the channel to another the adjacent channel until the contouring edge is extended back to the starting point, wherein the two ball shells are integrally bonded with each other to form the ball carcass that the contouring edges of the ball shells are alignedly linked to form a common edge of the ball carcass, such that the common edge of the ball carcass, which is a molding line thereof, also forms as the channels of the ball carcass to invisible the molding line thereat.

An aeroponic growing system, double T-shaped sprayer design and method for cultivating larger plant crops and increasing harvest frequency. The system comprises a series of aeroponic growing units, each of which supports a plant's roots within an enclosure. The enclosure houses a sprayer, an interior volume of plant nutrient solution and a plumbing system for accepting and distributing the aqueous water-nutrient solution. The internal sprayer is a double T-shaped mister that sprays an atomized mist directed from a first set of nozzles onto the plant roots, along with a second set of nozzles directed toward the base of the enclosure to aerate the interior volume of plant nutrient solution. The T-shaped mister provides circumferential coverage of the plant roots, while the aeration of the plant nutrient solution provides an aerated solution that accelerates plant growth through a hybrid process of Nutrient Film Technique (NFT) called a Hyperactive Aeroponic Shallow Water Culture (HAS Culture). Several interconnected aeroponic growing units may be stationed in a parallel grid to provide ample space for rapid growth of crops, while supplying the water and nutrient solution through a network of pipes and tubes between units.

A bedding system designed to provide air to an end user an air supply of filtered air; a platform having a plurality of air holes; and a mattress with a plurality of air holes to permit the flow of air to the end user.

A thermal type fluid flow sensor includes an air flow detecting portion and a temperature detecting portion formed above the same substrate, capable of correcting a humidity, and having a high measuring accuracy at a low cost, and a heat generating resistor, a temperature measuring resistor for the heat detecting resistor, a temperature measuring resistor for detecting an air flow, and a heat generating resistor for detecting a humidity are arranged in a diaphragm formed above a semiconductor substrate, an air cavity layer, and a protecting film above the air cavity layer are formed above the heat generating resistor for detecting the humidity, and the protecting film is provided with plural holes reaching the air cavity layer.

A dual air cavity roof has a continuous upper cavity which is cooled by fans, while the lower cavity is generally sealed. Preferably the cavities are separated by a radiant barrier. The fans are preferably powered by one or more photovoltaic cells that are also disposed on the roof. The roof can be pre-cooled with cooler night air and fans only activated when necessary to remove heat from the solar load on the upper cavity. When it is desirable to remove heat, the fan speed is optimized in each zone of the roof to enhance the natural convective flow to the optimum level. A radiant barrier can also cover the roof substrate, which is optionally an existing roof that is in need of repair. The roof structure is preferably assembled in parallel modules using insulating support brackets that support the outer surface and the barrier that separates the upper and lower cavity.

The invention relates to quick preparation device and method of a saturated soil sample. Saturated clay is extruded by utilizing a load-vacuum combined consolidation principle so as to obtain a saturated clay sample with a low water content (the water content is lower than a plastic limit). The device comprises a sleeve, a base, a piston, a vacuum cavity and a fixing sleeve, wherein the sleeve is sequentially and respectively provided with a slide-fit piston, a cylindrical porous stone internally embedded with a horizontal pressure sensor and the fixing sleeve; the piston, the base and the sleeve are respectively provided with upper draining holes, lower draining holes and side draining holes; and a vacuum extraction hole is arranged on the vacuum cavity. The draining process of the saturated clay is accelerated under the extruding effect of the piston through the negative pressure (about 101.325kPa) condition of the vacuum cavity, and meanwhile, horizontal stress and vertical stress applied on the saturated clay are obtained through the horizontal pressure sensor and a vertical pressure sensor so as to further obtain a coefficient k0 of earth pressure at rest (a specific value of the horizontal pressure to the vertical pressure applied to the soil sample under the condition of no lateral deformation).

A step and lift refuse liner removal system is disclosed, consisting of a conventional refuse container main housing. A conventional refuse liner rests on a support plate, located inside the main housing, above the bottom of the main housing. Air holes in the support plate facilitate air flow throughout the main housing, thus reducing the vacuum between the refuse liner and the side walls of the main housing. A dual fulcrum and curved lever system permits the operator to lift the support plate by pressing down on a foot bar located outside the main housing near the ground. As such, the present invention facilitates the easy and effortless removal of a conventional refuse liner. A set of foot pads are provided to enable the operator to restrict the movement of the main housing relative to the ground.

A micromachined air-cavity resonator, a method for fabricating the micromachined air-cavity resonator, and a band-pass filter and an oscillator using the same are provided. In particular, a micromachined air-cavity resonator including a current probe fabricated together when the air-cavity resonator is fabricated, and a groove structure for rejecting detuning effect when an external circuit of a package substrate is coupled to the current probe, a millimeter-wave band-pass filter using the same, and a millimeter-wave oscillator using the same are provided. The micromachined air-cavity resonator includes a cavity structure which comprises a current probe simultaneously formed through a fabrication process, and a groove structure; and a package substrate integrated with the cavity structure. Thus, the micromachined air-cavity resonator can be easily fabricated by etching a silicon substrate and easily integrated to the package substrate using the flip-chip bonding.

The invention relates to a fitting device for a special-shaped curved-surface cover plate and a flexible screen. The fitting device comprises a fitting body for pressing a flexible screen, a support body and a tensioning mechanism for elastically connecting the two ends of the flexible screen to the bottom of the support body or the joint body; the fitting body is provided with an air bag shell and an elastic partition wall which is positioned on the inner side; the air bag shell is provided with a flat wall and a curved wall which are used for at least pressing a flat area or an end of an archook area of the special-shaped curved surface cover plate; the flat wall and the curved wall form a flat air cavity and a bending air cavity respectively with the elastic partition wall. The fittingdevice is provided with a flat air cavity and a bending air cavity, and the air cavity can be controlled respectively, on the one hand, the fitting device can effectively control the strength of thewhole fitting body in the non-inflatable state, maintain a good shape, and effectively control the deformation of the fitting body in the inflatable state, which is more conducive to the control of the fitting strength, so as to be more favorable for controlling the bonding force; on the other hand, the different areas of the flexible screen can be attached by step, so that the bonding effect is further improved. The invention also provides a fitting method.

The invention discloses an optical fiber Fabry-Perot ultrasound hydrophone and a system, which are used for measuring an HIFU (high intensity focused ultrasound) sound field. The system comprises a light source assembly, an optical fiber assembly, the optical fiber Fabry-Perot ultrasound hydrophone, a clamp, and a detection and feedback assembly, wherein the clamp is used for clamping the optical fiber Fabry-Perot ultrasound hydrophone, light emitted by the light source assembly reaches the optical fiber Fabry-Perot ultrasound hydrophone through the optical fiber assembly, the reflected light of the optical fiber Fabry-Perot ultrasound hydrophone, which is modulated by ultrasound, passes through the optical fiber assembly, and is received and processed by the detection and feedback assembly, the optical fiber Fabry-Perot ultrasound hydrophone comprises a single-mode optical fiber, a reflecting optical fiber and a quartz capillary tube, the two ends of the quartz capillary tube are respectively connected with the single-mode optical fiber and a reflecting optical fiber, and an air cavity in the quartz tube is an interference cavity. The optical fiber Fabry-Perot ultrasound hydrophone and the system have the advantages that the high sound pressure of the HIFU sound field can be borne, the sound pressure sensitivity is high, the space resolution is high, and meanwhile, the temperature is measured.

The invention relates to a pressure bearing type air heat absorber used for a solar power station, consisting of a silicon carbide foamed ceramics heat receiver (2), a pressure bearing air cavity (3), an air flow channel (4) and an insulating layer (7), wherein, the silicon carbide foamed ceramics heat receiver (2) and the outer wall surface of the pressure bearing air cavity (3) are integrally formed or contacted with each other closely; the pressure bearing air cavity (3) is made of compact silicon carbide ceramics and filled with silicon carbide foamed ceramics; the air flow channel (4) consists of gaps between the inner wall surface of the pressure bearing air cavity (3) and the silicon carbide foamed ceramics filling the pressure bearing air cavity (3); the silicon carbide foamed ceramics and the inner wall surface of the pressure bearing air cavity (3) are formed integrally or contacted with each other closely; and the insulating layer (7) is coated on partial outer surface of the silicon carbide foamed ceramics heat receiver (2) and the outer surface of the pressure bearing air cavity (3) which is not connected with the silicon carbide foamed ceramics heat receiver (2). The pressure bearing type air heat absorber can obtain high-pressure high-temperature air with the temperature range between 700 and 1300 DEG C and the pressure more than 1 MPa, and simultaneously stores heat by utilizing the self sensible heat.

A packaged resonator includes a substrate, an acoustic stack, a first polymer layer and a second polymer layer. The acoustic stack is disposed over the substrate. The first polymer layer is disposed over the substrate surrounding the acoustic stack. The first polymer layer also provides a first air gap above the acoustic stack. The second polymer layer is disposed over the acoustic stack and above the first air gap.

The invention relates to a special baking oven and a special material rack thereof for silicon material. The baking oven comprises a thermal insulation shell, an inner container, a high temperature air cavity, a hot air duct, a heater, a circulating fan, a dehumidifier, a dehumidification pipe, a humidity sensor, a temperature sensor, a frame body, idler wheels and a silicon material box, wherein the high temperature air cavity is arranged on top of the inner container, the hot air duct is arranged around the inner container, the heater is arranged in the baking oven, the circulating fan is arranged between the high temperature air cavity and the hot air duct, the dehumidifier is communicated with the inner chamber of the inner container, and the humidity sensor and the temperature sensor are arranged to realize automation control of the baking oven. The movable baking shelf thereof can facilitate loading/unloading and in/out of silicon material, save baking preparation time, and has the advantages of high baking efficiency and low energy consumption. The whole silicon material box can be directly moved in the baking oven for baking, thereby greatly shortening technology preparation time and reducing labor strength of operators.

The invention relates to an energy-saving environmental-friendly multifunctional double-skin facade which belongs to the fields of solar utilization, air purification, noise control and building wall body development. The energy-saving environmental-friendly multifunctional double-skin facade is characterized by comprising two layers of transmission glass, an air heating cavity, a solar radiant heat absorbing plate, a total air inlet, a total inlet guide baffle plate, a lower inlet louver, a lower inlet baffle plate, an upper inlet louver, an upper inlet baffle plate, an air cavity top baffle plate, an intra-wall guide plate, a filtering unit support plate, a porous medium filtering unit, a cross flow fan, a noise elimination net, an outlet louver, an air outlet openness regulating baffle plate, a lower inlet baffle opening and closing control connecting rod, an upper inlet baffle plate opening and closing control connecting rod, a cavity top baffle plate opening and closing control connecting rod, a wall body base, a glass panel fixing frame, and the like. The invention is suitable for supplying fresh air for rooms in buildings in a downtown area with low air quality and large noise, inhibits outdoor noise, creates a silent, healthy and comfortable indoor environment for the rooms of the building, and reduces the energy resource requirements on the buildings.

The invention discloses an atomizing nozzle for efficiently preparing fine metal and alloy powder. A working part of an upper part is a truncated cone; a lower part is that an inner truncated cone is connected under a cylindrical inner cavity; the upper and lower truncated cones form a gas channel after the combination; and the gas channel is narrowest at an outlet of an air cavity, and then gradually diverges to form a channel with structural characteristics of an Laval nozzle. The atomizing nozzle has the advantages that the gas channel of the nozzle has the structural characteristics of the Laval nozzle, can produce high-speed airflow, improve the kinetic energy of atomizing gas, further improve the impact grinding effect of the airflow on liquid metal by adopting a liquid delivery tube with a large injection angle and a small diameter, and greatly increase the yield of fine powder. The nozzle is also suitable for the atomization of all metal and alloy melts the melting points of which are lower than 1,600 DEG C, and provides a solution for the preparation and application of most of gas-atomized powder.