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282results about How to "No pressure" patented technology

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

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

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

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

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
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