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285results about How to "No pressure" patented technology

Wound therapy device and related methods

A wound closure apparatus is disclosed which includes a housing that contains a vacuum pump and a chamber for holding a disposable wound fluid collection canister. The canister resides within the chamber and connects at an outlet with the vacuum pump and at an inlet with a pad. The pad is placed over a wound and adhesively secured thereto. When the vacuum pump activates, it evacuates air from the canister resulting in wound fluids flowing from the wound into the canister. After the canister is filled, it is removed from the chamber and replaced with another canister to continue the removal of wound fluids.
Owner:KCI LICENSING INC

Lamp and alarm clock with gradually increasing light or sounds

A lighting fixture having a lamp and alarm clock with a wake-up cycle and sleep cycle with gradually increasing and decreasing light and sounds. The lighting fixture includes at least one lamp for emitting light in the wake-up cycle and in the sleep cycle. The lighting fixture also includes at least one speaker for emitting sound in the wake-up cycle and in the sleep cycle. The lighting fixture further includes a dimmer switch for dimming the light and wake-up cycle control buttons for setting and controlling a wake-up cycle having a light control button for setting the time when the wake-up cycle control buttons activates the light mode and gradually increases the lamp brightness emitted from the at least one lamp; and sound control buttons for setting and controlling the time when the wake-up cycle control buttons activates the sound mode and gradually increases the sound intensity emitted from the at least one speaker; and sound selection switches for selecting one of multiple pre-set sounds for the sound mode of the wake-up cycle, or for full time operation as background sound.
Owner:VERILUX

Sound-output-control device, sound-output-control method, and sound-output-control program

A sound-output-control device including an acquisition unit which acquires an anaerobic threshold, a reception unit which receives an input about exercise intensity, a calculation unit which calculates a value indicating a target heart rate of a user on the basis of the acquired anaerobic threshold and the received exercise-intensity input, a detection unit which detects a value indicating the current tempo of a physical exercise done by the user, and a control unit that controls a sound output on the basis of a result of a comparison of the target heart-rate value calculated by the calculation unit and the current physical-exercise-tempo value detected by the detection unit, so as to lead a heart rate of the user so that the heart rate of the user attains the target heart rate is provided.
Owner:SONY CORP

Apparatus for supplying food dough

An apparatus for supplying food dough forms blocks of food dough that are continuously supplied into a sheet or belt of food dough and then divides it into chunks of food dough that have preset weights. The apparatus for supplying food dough comprises a hopper to which a large block of food dough is supplied, a cutting apparatus located at a lower opening port of the hopper to cut the block into small blocks that have substantially the same volume,a dough feeder having a plurality of rollers that are arranged as a V to form the small blocks into a sheet of the food dough, a transferring conveyor to transfer the small blocks to the dough feeder, a feeding conveyor to convey the sheet of the food dough that is formed by the dough feeder to have a constant thickness, a weighing conveyor measuring the weight of a part of the sheet that is supplied by the feeding conveyor as the sheet is being conveyed, and a cutting apparatus for cutting the sheet of the food dough when the measurement of the weighing conveyor corresponds to a preset value.
Owner:RHEON AUTOMATIC MASCH CO LTD

Nasal Dilator with Elastic Membrane Structure

ActiveUS20160008161A1Affect propertyResilient and elastic deformationRespiratorsHead bandagesBreathingOut of plane
An external nasal dilator comprises resilient and engagement elements. The engagement element functions primarily to affix, adhere, or otherwise engage the dilator to the skin surface of the nose. The resilient element comprises one part that provides out-of-plane resiliency, or spring biasing forces, and another part that provides in-plane elasticity, or stretching or tensioning forces. The dilator includes horizontal regions adapted to engage outer wall tissues of first and second nasal passages of a nose. When in use the dilator stabilizes or expands nasal outer wall tissues and prevents the outer wall tissues from drawing inward during breathing.
Owner:HORIZON IP TECH LLC

Biodynamic apparatus for performing correct SIT-UP and LEGS-UP exercises and methods

InactiveUS20060116262A1Good flexibilityEffectStiltsFlexibility exerciseLumbar
A biodynamic apparatus to perform correct, safe and effective SIT-UP and LEGS-UP exercises and simultaneously perform spinal arching, spinal decompression, and flexibility exercises, comprising of two part frame hinged at one end and a set of parallel bars that elevate and anchor the legs of the user concentrating the exercise in the abdominal area of the body. The main feature of the apparatus is provided by a device the inventor calls “flexor”. The flexor is not an ordinary lumbar support. Its function is to meet the natural fulcrum of the human torso, which is below the sacrum, to safely and efficiently articulate. Most exerciser bend the spine during the exercise, rather than the pelvis putting a tremendous negative stress on the vertebra and on the intervertebral discs. With the help of the “Flexor” the torso can move from horizontal to at least 90 degrees angle as one straight piece, free from the gravitational stress produced on the spine, especially on the cervical vertebra, by the weight of the head during the initiation of the exercises. It is a fact that ordinary SIT-UP and LEGS-UP exercises the work is performed for the most part by the neck, back and lumbar muscles during the first part of the movement placing a dangerous negative stress on the spine, and especially on the spinal cord. With the use of this apparatus, the reverse can be observed. The user by lying on the “flexor” places in traction the entire set of abdominal, pectoral and neck muscles creating a direct line of force between the abdomen and the head. The spine is arched and decompressed, the abdominal muscles are in traction and the lumbar muscles are neutralized since there are bent beyond their working point. This position of the body allows to safely concentrate 100% the force on the abdominal muscles to initiate the primary work constituted by the lifting of head of the user, instead of the neck, and on the lumbar muscles of the user, as well as to protect the spine and the weak abdominal muscles from negative stress and subsequent short and long term injuries. Decompression, arching, and flexibility of the spine, being achieved during this new method of performing SIT-UP and LEGS-UP exercises, simultaneously, make this apparatus bio-dynamically correct, as far as distribution, compensation and equalization of stresses; meet the scientific principles of muscle dynamics of traction and contraction; protect the spine from negative stress, especially the weak cervical and lumbar areas; maintain and enhance the spine's integrity and flexibility; and obtain maximum abdominal muscle developments, which are the major benefits of this invention. The flexor is mounted on two external parallel railing as to adjust to the length of all users. It also has an internal adjustable mechanism that allows its two padded flanges to adjust in width to accommodate all waist sizes of users for additional support and prevention of lateral stress to the lower spine.
Owner:PANDOZY RAFFAELE MARTINI

Portable easel and palette combination

A portable easel comprises an easelback and palette box joined by two lockable hinges mounted on opposing sides, the hinges having friction washers, and having knobs extending outward from shafts of each hinge, the shafts defining a rotational axis. With knobs loosened, the easelback may be rotated to a desired angle relative to the palette box, and, with knobs tightened, the friction washers lock the easelback into position. The easelback further comprises a canvas-holder having a vertically adjustable slidable lower support plate and a vertically extendable shaft, said shaft having a horizontal cross member configured with rotatable hooks for securing a canvas. The palette box further comprises a right-angle baseplate for tripod connection to advantageously place the opened easel's center of gravity at the baseplate-to-tripod connection. The easelback may comprise slots for storing canvases, and the palette box may be configured with multiple compartments for storing paints and accessories.
Owner:CHANG ERIC LONG CHIA

Spur gear differential

The invention relates to a spur gear differential (66) comprising a housing (68) that is embodied as a sum wheel (50) and that rotates around a longitudinal rotational axis (4), at least three planet gears (21, 22) disposed on the periphery at a distance in relation to each other around the rotational axis (4), and a drive wheel (67) at the housing (68), withthe housing (68) comprised of at least two housing sections (75) fixed to each other,each of the planet gears (21, 22) mounted longitudinally on both sides in the housing sections (75),at least one of the housing sections (75) formed in the shape of a pot, with the housing section (75) formed from a pot (76) having a base (65) arranged on the front side of the housing, a wall starting from the base (65) and extending around the rotational axis (4).
Owner:SCHAEFFLER TECH AG & CO KG

Cup type microwave thermoacoustic mammary gland imaging detection device

The invention belongs to the technical field of thermoacoustic imaging, and discloses a 'cup' type microwave thermoacoustic mammary gland imaging detection device. The detection device consists of a pulse microwave generator, a transmitting antenna, a 'cup' detection device, a detection coupling platform, an ultrasonic transducer, microwave leakage-proof equipment and a data acquisition-image reconstruction device, wherein the 'cup' detection device is an uncovered closed container which consists of a metal 'cup' shell and a non-metal body bottom plate; a microwave absorbing material is covered on the integral cross section of the 'cup' detection device and is recessed inward to form a shape which is matched with shapes of human breasts; a polystyrene buffer cushion is covered on the microwave absorbing material seamlessly, and a hole is reserved in the center of the polystyrene buffer cushion; a detector lifting power device is arranged at the bottom of the closed container; and a detector lifting sliding groove is formed above the power device; and a multielement annular array ultrasound detector is arranged on the sliding groove. The resolution ratio of the detection device is 0.5 millimeter, so the detection device can discriminate millimeter-order microscopic tumors; and the image contrast is high, so the detection device can be popularized clinically.
Owner:SOUTH CHINA NORMAL UNIVERSITY

Alcohol-based fuel combustion improver and alcohol-based fuel

The invention discloses an alcohol-based fuel combustion improver and an alcohol-based fuel. The alcohol-based fuel combustion improver consists of 4.9-93 parts by weight of co-solvent, 4.9-93 parts by weight of bio-oil, 0.1-0.3 part by weight of smoke suppression combustion improver and 1.0-3.0 parts by weight of combustion improver; and the alcohol-based fuel is formed by mixing and stirring 80-99 parts by weight of methanol and 1-20 parts by weight of alcohol-based fuel combustion improver. By adopting the combustion improver disclosed by the invention, the prepared alcohol-based fuel is a novel biological environment-friendly alcohol-based fuel, the calorific value is as high as 6,000-10,000 calories / g, and the combustion performance is good; and moreover, the alcohol-based fuel has high flash point and low volatility, and potential safety hazards in the prior art are eliminated. The alcohol-based fuel disclosed by the invention also has the characteristics of being safe and environment-friendly, reproducible, clean and sanitary, convenient to use, cheap and the like.
Owner:QINGYUAN JINGWANG ENVIRONMENTAL PROTECTION EQUIP

Hydraulic valve for an oscillating motor adjuster

ActiveUS20120152195A1Configuration become largeAccurately designMultiple way valvesMachines/enginesPistonEngineering
The invention relates to a hydraulic valve for an oscillating motor adjuster that utilizes camshaft alternating torques by means of non-return valves for more rapid adjustment. The non-return valve that is not used for the respective rotation is additionally closed by means of the piston of the hydraulic valve.
Owner:HILITE GERMANY

Original eyelash butterfly guard

The original butterfly eyelash guard use in the cosmetic field as a skin, eyes, and eyelash disposable shield in the application of eye makeup and / or as a protector during eye makeup removal, eyelash tinting, artificial eyelash extension, permanent makeup tattooing. The eyelash guard molds firmly around the bridge of the nose, fits perfectly under any size of eyes, and secures to both sides of the face, thereby freeing the hands to apply makeup or to perform other procedures as described. Also, it can be used over eyelids. The eyelash guard is for everyone who wants to look the best, raise job standards and bring enjoyment to the makeup application routine. The original butterfly eyelash guard is for everyone who wants to save a lot of time, money and have a tool that may help to prevent premature aging and damage to eyelashes and skin.
Owner:HOLISTIC BEAUTY LLC

Fastening device for a fuel injection valve

A mounting device for mounting a fuel injector (1) in a cylinder head (2) for direct injection of fuel into the combustion chamber of an internal combustion engine, including a holding down device (10) which is attached to the fuel injector (1), the holding down device (10) being designed as a flat component which is supported by sleeve (11) which surrounds the fuel injector (1), and rests on a preferably metallic flange (16) of the fuel injector (1).
Owner:ROBERT BOSCH GMBH

Communication control apparatus and communication control system

A communication control apparatus selects an optimum terminal for an authentication device among a plurality of terminals that have completed authentication of the authentication device via wireless communication. The communication control apparatus has an information acquiring unit and a selecting unit. The information acquiring unit acquires address information and capability information of each of the plurality of terminals and identification information of the authentication device from each of the plurality of terminals. The selecting unit selects the optimum terminal having a capability of handling data addressed to the authentication device among the plurality of terminals on the basis of the capability information of the plurality of terminals and the identification information of the authentication device acquired by the information acquiring unit, when the address information and capability information of the plurality of terminals are acquired by the information acquiring unit.
Owner:SONY CORP

Rolling friction cylinder hydraulic type force standard machine

The invention provides a rolling friction cylinder hydraulic type force standard machine which belongs to the technical field of mechanical engineering. The main body of the hydraulic type force standard machine consists of a rolling friction plunger type hydraulic cylinder I used as the core and a communicating vessel formed by two rolling friction plunger type hydraulic cylinders according to the Pascal principle. The complete hydraulic type force standard machine also comprises a force measuring instrument, a frame, a rolling friction cylinder II, a displacement sensor, a counterweight, a hydraulic oil feeding system and a hydraulic subsidiary loop. The force standard machine has high working precision; oil cylinder structure and the manufacturing process are simplified; the loading time can be efficiently controlled in the working process; the high pressure hydraulic pump is unnecessary; no pressure and flow pulsation phenomenon exists; the flow control is precise and stable; the minimum stable flow requirement can be met by controlling the precise displacement of plungers; and the stable and accurate system working pressure is maintained.
Owner:JILIN UNIV

Apparatus for drying ceramic molded articles using microwave energy

An apparatus and a method, for drying ceramic molded articles, are disclosed. A drying apparatus (1) comprises a drying chamber (10) for accommodating ceramic molded articles (8), a plurality of microwave generators (20) for supplying microwave energy into the drying chamber, and a conveyor (30) for charging the ceramic molded articles (8) continuously into the drying chamber (10), conveying the ceramic molded articles through the drying chamber, and delivering the ceramic molded articles from the drying chamber. The drying chamber (10) has arranged therein a plurality of the microwave generators (20) and at least a sensor (40) for detecting the distribution of the ceramic molded articles (8) in the drying chamber (10). Each microwave generator (20) is adapted to change the output thereof in accordance with the distribution of the ceramic molded articles (8) detected by the sensor (40).
Owner:DENSO CORP +1

Omnibearing bending vibration massager

The invention discloses an omnibearing bending vibration massager which comprises a flexible glue body, wherein a first massage head is arranged at one end of the glue body; a second massage head is arranged at the other end of the glue body; a first vibration motor is arranged in the first massage head; a second vibration motor is arranged in the second massage head; a first hose support is further arranged in the first massage head; a second hose support is further arranged in the second massage head; one end of a straight-line-shaped sizing hose arranged inside the flexible glue body is fixedly connected with the first hose support; and the other end of the straight-line-shaped sizing hose is fixedly connected with the second hose support. The omnibearing bending vibration massager provided by the invention has the advantages that the correspond positions of the two ends of the massage heads can be freely adjusted as required; the best effects can be achieved for different users at the same time; and the omnibearing bending vibration massager can be used by both men and women.
Owner:AILV HEALTH TECH

Roll-on encapsulation method for semiconductor packages

A low-viscosity resin is deposited using an apparatus with a movable and heatable wheel and a heater stage. A tape is provided, which includes a layer (140) of an adhesive polymeric resin and a film (141) of an inert plastic compound. The tape is wrapped around the wheel (150) so that the film touches the wheel and the layer faces away from the wheel. The wheel is heated to a temperature high enough to transits the polymeric resin into a low-viscosity state. A substrate strip (110), which has been assembled with a plurality of semiconductor chips (101) connected to the substrate by bonding wires (120), is placed on a station (130) also heated to the transition temperature. The wheel is then moved to roll the low viscosity resin on the chips and wires along the strip, while the inert film is separated. The chips and wires are thus encapsulated.
Owner:TEXAS INSTR INC

Spur gear differential

The invention relates to a spur gear differential (66) comprising a housing (68) that is embodied as a sum wheel (50) and that rotates around a longitudinal rotational axis (4), at least three planet gears (21, 22) disposed on the periphery at a distance in relation to each other around the rotational axis (4), and a drive wheel (67) at the housing (68), withthe housing (68) comprised of at least two housing sections (75) fixed to each other,each of the planet gears (21, 22) mounted longitudinally on both sides in the housing sections (75),at least one of the housing sections (75) formed in the shape of a pot, with the housing section (75) formed from a pot (76) having a base (65) arranged on the front side of the housing, a wall starting from the base (65) and extending around the rotational axis (4)
Owner:SCHAEFFLER TECH AG & CO KG

Apparatus and method for supplying food dough

An apparatus for supplying food dough forms blocks of food dough that are continuously supplied into a sheet or belt of food dough and then divides it into chunks of food dough that have preset weights. The apparatus for supplying food dough comprises a hopper to which a large block of food dough is supplied, a cutting apparatus located at a lower opening port of the hopper to cut the block into small blocks that have substantially the same volume, a dough feeder having a plurality of rollers that are arranged as a V to form the small blocks into a sheet of the food dough, a transferring conveyor to transfer the small blocks to the dough feeder, a feeding conveyor to convey the sheet of the food dough that is formed by the dough feeder to have a constant thickness, a weighing conveyor measuring the weight of a part of the sheet that is supplied by the feeding conveyor as the sheet is being conveyed, and a cutting apparatus for cutting the sheet of the food dough when the measurement of the weighing conveyor corresponds to a preset value.
Owner:RHEON AUTOMATIC MASCH CO LTD

Simple mask for efficiently filtering PM2.5 and manufacturing method of simple mask

The invention relates to a simple mask for efficiently filtering PM2.5. The simple mask comprises a mask body which is used for covering the mouth and the nose of a wearer. A pair of ear hooking parts used for being hooked to the ears of the wearer is arranged on two sides of the mask body in an extending mode. The mask body is in a three-layer structure and forms a stacked shape, and the three-layer structure sequentially comprises an outer polypropylene spun-bonded non-woven layer, a middle superfine-electret melt-blown fiber non-woven layer and an inner polypropylene spun-bonded non-woven layer. When the mask is worn, the inner polypropylene spun-bonded non-woven layer faces to the wearer. Small breathing holes are respectively distributed in the outer polypropylene spun-bonded non-woven layer and the inner polypropylene spun-bonded non-woven layer and penetrate through the outer polypropylene spun-bonded non-woven layer and the inner polypropylene spun-bonded non-woven layer, and the hole diameters of the small breathing holes are 0.3-0.6mm. The invention further provides a manufacturing method of the mask. The simple mask has the characteristics of high filtering and low flow resistance and has prominent blocking and capturing capabilities for PM2.5 air particles.
Owner:SHANDONG AIDA MEDICAL PROD

Air conditioner

An air conditioner exhibiting high product reliability and transportability during transportation, not imposing a sense of oppression to a resident because of low noise, and being packed in less packing material as compared with conventional one. A centrifugal fan mounted on an air conditioner is shaped to have the following relation; the outside diameter of the side plate of the centrifugal fan > the side plate side outside diameter at the trailing edge of the blade > the main plate side outside diameter at the trailing edge of the blade >= the outside diameter of the main plate. The trailing edge of the blade is located on the inside of a line, which connects the joint of the trailing edge of the blade to the main plate, and the joint of the trailing edge of the blade to the side plate when viewed from the axis of rotation, and a distance to the axis of rotation becomes longer from the main plate toward the side plate.
Owner:MITSUBISHI ELECTRIC CORP

Filled bottle conveying device provided with bottle-storage buffering mechanism

The invention discloses a filled bottle conveying device provided with a bottle-storage buffering mechanism, wherein the filled bottle conveying device can effectively reduce extruding deformation of bottles. A bottle storage platform is arranged outside a bottle feeding platform and a bottle discharging platform which are arranged side by side, the conveying direction of the bottle feeding platform is opposite to that of the bottle discharging platform, the bottle storage platform is provided with a bottle feeding area and a bottle discharging area, the conveying direction of the bottle feeding area is identical to that of the bottle feeding platform, the conveying direction of the bottle discharging area is identical to that of the bottle discharging platform, a first guide guardrail, a second guide guardrail and a third guide guardrail are arranged on a bottle-storage buffering support above the bottle storage platform, the second guide guardrail is gently bent, extends and gets close to the first guide guardrail of the bottle discharging area of the bottle storage platform from the outer side of the bottle feeding area of the bottle storage platform so that a bottle storage area of the bottle storage platform can be formed, the third guide guardrail is located between the bottle feeding area and the bottle discharging area in the bottle storage area in a separated mode, and a bottle passing gap is formed between the second guide guardrail and the third guide guardrail. When a rubber clamping chain on the second guide guardrail rotates, bottles in the bottle feeding area of the bottle storage platform are guided to the bottle discharging area of the bottle storage platform. A sliding driving device arranged on an installation frame can drive the bottle-storage buffering support to move back and forth above the bottle storage platform.
Owner:JIANGSU NEWAMSTAR PACKAGING MACHINERY

Nasal dilator with elastic membrane structure

ActiveUS10010442B2Resilient and elastic deformationAvoid problemsRespiratorsHead bandagesNasal cavityNasal passage
An external nasal dilator comprises resilient and engagement elements. The engagement element functions primarily to affix, adhere, or otherwise engage the dilator to the skin surface of the nose. The resilient element comprises one part that provides out-of-plane resiliency, or spring biasing forces, and another part that provides in-plane elasticity, or stretching or tensioning forces. The dilator includes horizontal regions adapted to engage outer wall tissues of first and second nasal passages of a nose. When in use the dilator stabilizes or expands nasal outer wall tissues and prevents the outer wall tissues from drawing inward during breathing.
Owner:HORIZON IP TECH LLC

Optical sensor device

InactiveUS9029968B2Excellent in cost and property and reliability in mounting and reliabilityImprove reliabilitySemiconductor/solid-state device detailsSolid-state devicesEngineering
An optical sensor element is mounted in a package which includes a glass substrate having a cavity, and a glass lid substrate bonded to the other substrate to close the cavity. The glass substrate with the cavity has metalized wiring patterns on front and rear surfaces thereof, and a through hole filled with metal to form a through-electrode interconnecting the wiring patterns on the front and rear surfaces. A metalized wiring pattern on the rear surface of the glass lid substrate is electrically connected to the wiring pattern on the front surface of the other substrate with an adhesive containing conductive particles. The glass lid substrate is made either of glass having a filter function or glass having a light shielding property with an opening therethrough filled with glass having a filter function.
Owner:ABLIC INC

Engine anhydrous cooling liquid and preparation method thereof

The invention discloses an engine anhydrous cooling liquid and a preparation method thereof, wherein the engine anhydrous cooling liquid comprises the following raw materials by the weight percentage:60-70% of propylene glycol, 25-30% of ethylene glycol, 3-4% of 1,2-aminoazophenylene, 1-2% of sodium nitrate, 2-3% of glycerol, 1-2% of triethanolamine, 0.5-1.5% of sodium hydroxide, and 0.1-1% of apigment. The anhydrous cooling liquid has the freezing point lower than -52 DEG C and the boiling point more than 190 DEG C and has a large thermal safe space, so with the use of the product, the anhydrous cooling liquid can maintain a good state for operation, adequate power is maintained, noise is reduced, a water tank does not produce 'boiling', and cylinder score is not generated. With use ofthe anhydrous cooling liquid, zero corrosion can be achieved, no water rust is generated, cleaning and repair are not needed forever, and boiling, cylinder score, water tank blocking, water rust, water scale, corrosion and cavitation corrosion, engine fatigue, nausea, explosive vibration, precombustion, large noise, unstable idle speed, cylinder pressure reduction, insufficient power, oil consumption increase and large exhaust gas emission smoke and other phenomena are thoroughly eliminated.
Owner:四川路恒达机械科技有限公司

Safety valve of electric water heater

The invention discloses a safety valve of an electric water heater. The safety valve comprises a valve body, and a water inlet cavity and a pressure relief cavity, which are arranged on the valve body; a one-way water inlet valve is arranged in the water inlet cavity; a pressure relief valve is arranged in the pressure relief cavity; the pressure relief valve comprises a rubber body, a rubber body pressing cap, a pull rod, a return spring and an adjustment cap; an empty cavity is arranged in the rubber body; the rubber body pressing cap is in threaded connection with the inner wall of the pressure relief cavity; an inner end of the pull rod passes through the rubber body pressing cap, is inserted into the empty cavity, and is fixedly connected with the inner wall of the empty cavity; the rubber body is arranged into a columnar barrel-shaped structure; the edge of the rubber body outwards extends to the rubber body pressing cap to be hermetically fixed; the adjustment cap is arranged at the outer end of the rubber body pressing cap; the return spring is sleeved on the pull rod; an inner end of the return spring is connected with the inner end of the pull rod; an outer end of the return spring is butted against the adjustment cap; and the rubber body is hermetically jacked on an outlet of a water inlet passage under the action of the return spring. The safety valve is reasonable in structural arrangement, and compact and simple in structure, and is reliable to work; the production cost is low; and furthermore, the service life is long.
Owner:ZHEJIANG HUAYI PRECISION MACHINERY CO LTD

Method for compensating gravity of nine-accelerometer gyro-free inertial navigation system

InactiveCN103900614AOutput eliminationThe effect of the output is eliminatedNavigational calculation instrumentsNavigation by speed/acceleration measurementsAccelerometerAbsolute gravity
The invention belongs to the field of inertial navigation and in particular relates to a method for compensating gravity of a nine-accelerometer gyro-free inertial navigation system. The method comprises the following steps: collecting output signals of nine accelerometers of the gyro-free inertial navigation system; obtaining a local latitude according to output of GPS (Global Positioning System); calculating a local absolute gravity value; mounting the system on a static base, enabling the system to be in a static state, only sensing the gravity by the accelerometers, recording output of the accelerometers at the moment and calculating a primary error conversion matrix of the gravity to the system according to a linear speed equation of the system; calculating an angular speed of the system; calculating a gravity compensation value; compensating the gravity of the system. The invention discloses a new gravity estimating method. The method can be used for compensating gravity in the navigation and is capable of effectively removing the influence of the gravity on measurement results of the accelerometers, calculating simply, generating no pressure on the calculation of the system and compensating the gravity of the system in real time.
Owner:HARBIN ENG UNIV

Screws used in twin-screw foaming extruder

The invention discloses screws used in a twin-screw foaming extruder. Each screw comprises a screw body, wherein the screw body is sequentially composed of a feeding segment, a compressing segment, a plasticizing segment, a gas discharging segment, a mixing segment and an extrusion segment; spiral edges are arranged on the feeding segment, the compressing segment, the plasticizing segment, the gas discharging segment and the extrusion segment; and the length-diameter ratio of the screw body is L:D = 29. Each screw is characterized in that multiple inclined spiral edge strips are arranged on the circumference of the mixing segment, the inclined spiral edge strips of two screws are mutually meshed, and the included angle between the extended spiral edge strips and the axial center line of the screw body is 19.5-20.5 degrees. As compared with the prior art, the screws have the advantages that multiple inclined spiral edge strips are arranged on the circumference of the mixing segment of each screw and the inclined spiral edge strips of the two screws are mutually meshed, thus the materials are efficiently and uniformly mixed, the materials can be better mixed with a foaming agent, the produced product is not easy to yellow and uniform in thickness, the production formula cost is reduced and the production efficiency is improved.
Owner:浙江华业塑料机械股份有限公司

Variable test object and holder for variable test objects

The invention relates to a holder for test objects, which are composed of at least two targets and at least one connecting element, comprising at least one carrier, at least one guide, which is arranged on or / and in the at least one carrier, and seats for the targets of at least one test object, wherein at least one seat can be moved along the at least one guide such that an adaptation of the position of the at least one movable seat to the position of one target of the test object is possible. Furthermore, the invention relates to a test object for the holder previously mentioned, comprising at least two targets and at least one connecting element, wherein the targets and connecting elements can be selected from a given set of single targets and single connecting elements and combined to form a test object.
Owner:METRONOM
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