449 results about "Gas bladder inflation" patented technology

This invention relates to active protective garments which are inconspicuously worn by an individual and which activate upon certain conditions being met. Activation causes inflation of regions of the active protective garment to provide padding and impact cushioning for the wearer. The invention is an active protective garment such as pair of shorts or pants, a jacket, a vest, underwear, and the like. The garments comprise multiple layers of material that constrain pockets or regions that are inflatable by a source of compressed gas or foam. The garments also comprise sensors to detect ballistic parameters such as acceleration, distance, relative acceleration, and rotation. The sensor information is used to determine whether activation is required. Detection and activation are accomplished in a very short time period in order to offer maximal protection for the individual wearing the garment. The system comprises a computer or logic controller that monitors the sensor data in real time and coordinates the information from all sensors. The system calculates velocity, distance, and rotational velocity. A rule-based system is used to detect a complex fall in progress and discriminate said fall in progress from the events of every day life. The pockets or inflatable regions of the garment protect the individual against falls and other impacts that may cause bone fracture or organ damage.

A patient support, such as a mattress, includes a plurality of inflatable bladders. Depth sensors are included in the support that measure the degree of penetration of a patient into the mattress. An air pressure sensor is also included that measures the pressure inside at least one bladder. A suitable inflation level of the mattress is determined by monitoring the rate of change of the depth with respect to air pressure as the bladder is either inflated or deflated. By detecting an inflection point in the graphical relationship of the depth and pressure outputs, a suitable inflation point for the bladders is determined that reduced interface pressures experienced by the patient, yet does not overly sink the patient into the mattress to a degree or discomfort. Analyzing the outputs of the depth and pressure sensors can also be used to detect a patient's heart rate and respiration rate.

An adaptive multi-stage inflator for inflating an air bag in an air bag safety system. The adaptive multi-stage inflator comprises a housing, a primary igniter assembly and a secondary igniter assembly. The housing has a top wall, a bottom wall and a side wall, which together define an interior chamber therebetween. The primary igniter assembly is disposed in the interior chamber of the housing and is configured to initiate the generation of a primary inflation fluid to inflate an air bag. The secondary igniter assembly is also disposed in the interior chamber of said housing. The secondary igniter assembly is configured to augment the primary inflation fluid by producing a secondary inflation fluid to further inflate the air bag. The inflator also includes a bypass assembly that is configured to provide the secondary inflation fluid to the air bag at substantially the same temperature as it was produced by the secondary igniter assembly, thereby increasing the pressure of the primary inflation fluid. The bypass assembly comprises a bypass passage configured such that the secondary igniter assembly is in direct fluid communication with the air bag. The bypass assembly has a retainer disk which in combination with the interior surface of the housing defines the bypass passage. The inflator also includes a filter disposed in the housing proximate to the side wall thereof to prevent the passage of particulates. The bypass assembly is configured to direct the secondary inflation fluid to the air bag without the secondary inflation fluid passing through the filter. Both the primary igniter assembly and the secondary igniter assembly comprises a quantity of igniter material.

The invention provides an anti-settling protection device, and relates to the technical field of automobile security devices. The anti-settling protection device comprises an air storage tank and a plurality of air bags, wherein the air bags are arranged at the chassis, top and two sides of the automobile, and all communicate with the air storage tank via air-guide tubes; an inflation control valve is arranged on each air-guide tube, and electrically connected with an automobile controller; and a water detection element is arranged on the automobile chassis, and electrically connected with the automobile controller. The invention also discloses an automobile comprising an automobile body and an anti-settling protection device installed on the automobile body. By installing the settling protection device on the automobile body, the inflation device can be started before the automobile falls into water or after the automobile falls, so that the air storage tank can inflate each air bag, the automobile can be lifted up or reduced in settling speed under the effect of buoyancy of water, and thus life security of personnel in the automobile is ensured.

A hybrid inflator having improved inflating performance of an air bag is provided. A gas generator provided in a housing 102, in which a pressurized medium is charged under a high pressure, includes a first gas generating chamber 120 and a second gas generating chamber 130. By allowing the two gas generating chambers to generate high-temperature combustion gas, respectively, the inflating speed and the like of the air bag are further improved.

The invention relates to an artificial trachea cannula made of nano materials in the technical field of medical appliance and a preparation method thereof; the artificial trachea cannula comprises a respirator joint, an air supply tube, an inflation tube, an inflation gasbag, a drain pipe and a lubricant coating, wherein, the inflation tube is in the air supply tube, the output end of the air supply tube is connected with the respirator joint; an inserting section of the air supply tube is cuniform; the external wall of the air supply tube is provided with inflation gasbags; the position where the inflation tube is correspondingly arranged is provided with holes; the drain pipe is embedded on the external wall of the air supply tube and is adjacent to the inflation gasbag; the side of the drain pipe close to the inflation gasbag is provided with a liquid outlet, the other side thereof is connected with an injector; the lubricant coating is arranged on the external wall of the inflation gasbag and the air supply tube, the air supply tube and the inflation gasbag are made of modified plastics. With the method of the invention adopted, damage to lumen tissue when the tube is inserted is reduced, pain is reduced, complicating disease is prevented from occurring; in addition, the preparation process is easy and controllable, the cost is low, as a result, the method is applicable to batch production.

Combustion residues of a gas generating agent remain in an inflator due to composition of the gas generating agent, temperature difference between combustion gas and pressurized gas isolated by a rupturable plate, collision of the combustion gas against a wall surface and the like. The inflator inflates an air bag with pressurized gas and combustion gas, while satisfying the following requirements: (1) pressurized gas contains an inert gas and substantially no oxygen; (2) in the gas generating agent, a pressure is 0.8 or less; (3) a mole ratio of an amount of pressurized gas and the combustion gas is 1 to 10; (4) a ratio of a mass of pressurized gas and the gas generating agent is 1 to 10; (5) a mass of a gas generating agent is 1 to 30 g; and (6) the pressurized gas is charged at 30,000 to 67,000 kPa.

Radio-frequency (RF) leakage from shielded enclosures is minimized while ensuring applicable RF attenuation standards and access requirements of the Americans with Disabilities Act (ADA) by attaching an inflatable bladder to a door of an enclosure. Substantially surrounding the bladder is an electrically conductive material. When the bladder is inflated it makes contact with conductive material which in turn makes conductive contact with the door frame to create an RF seal. The use of the bladder and conductive material provides an improved RF seal and allows for the use of a low-profile threshold that permits ADA access to, and from, the enclosure.

The invention relates to an inflatable drainage tube fixing device. The inflatable drainage tube fixing device comprises a fixed base (1), wherein the outer surface of the fixed base (1) is connected with a locking press cover (2); and the inflatable drainage tube fixing device is characterized in that a drainage tube fixing seat (3) is arranged between the fixed base (1) and the locking press cover (2), the drainage tube fixing seat (3) is internally provided with an inflatable air bag (5), the inflatable air bag (5) is connected with an air injection tube (7), and the end part of the air injection tube (7) is connected with a one-way valve (8). The inflatable drainage tube fixing device disclosed by the invention has the advantages that the pressure lacing of a drainage tube is controllable, the generality is strong, the sealing performance is good, and infection can be effectively prevented; the operation is simple, air injection or liquid injection can be carried out, air discharge or liquid discharge can be carried out at any time, the situation of observing a drainage opening or cleaning an operative incision can be facilitated, and the moving of the drainage tube can be convenient; the drainage tube can be fixed to the skin surface, the sticking stability can be kept, and the incision pain of a postoperative patient can be relieved; and the using of dressing bandages such as gauzes can be reduced, and the treating cost can be reduced.

Detonable devices such as charged air bag inflators are fed to a shred tower at a controlled feed rate via a feed valve. Water spray and / or water baths in the shred tower prevent sparking and begin to solubilize chemicals while the inflators are fed to primary and optional secondary shredders respectively performing course and fine shreds. A sump receives the shredded material which continues to solubilize and separate chemicals from metal. A conveyor lifts solids from the sump. Dewatered solids are fed to a receiving box for metal scrap recycling.

A pneumatic reinforcement system (14) (“system”) for a body structure (12) of a vehicle (10) includes an air bladder (28), an inflator device (30), a sensor (32), and one or more mounting members (34a, 34b, 34c). The sensor (32) detects a crash condition and actuates the inflator device (30) to inflate the air bladder (28). The air bladder (28) is attached to the body structure (12) by mounting members (34a, 34b, 34c), with the inflated air bladder (28) and mounting member (34a, 34b, 34c) strengthening the body structure (12) during a crash condition.

An apparatus for hand held inflating or deflating gas shocks or air bags is disclosed that is substantially hand held. A body comprises a high pressure valve, a lower pressure vent valve, and a pressurized plenum between the two valves. A high pressure gas source is connected tot the high pressure valve on one side. An object to be pressurized is connected to the other side to the lower pressure pressurized plenum. A gage is optionally available to monitor the pressure of the object to be pressurized. This device, which may fit into traditionally glove compartments and tool boxes, allows for quick and accurate pressurization of gas filled devices with pressure tunable characteristics. Although described here with a standalone highly pressurized gas source, a standard pressure disconnect can allow the device to be used with conventional tire inflation and deflation with an external pump supplying the high pressure source.

An air bag device that includes an air bag cushion, a diffuser canister, and a gas generation inflator. The diffuser canister is attached to the air bag cushion and has walls configured to define an interior space therein. The walls of the diffuser canister have an interior surface, an exterior surface, and a wall thickness t. At least one of the walls has an aperture formed therethrough in communication with the interior of the air bag cushion. The gas generation inflator is configured to rapidly create a gas that exits the diffuser canister through the aperture so as to fill the air bag cushion. The aperture is defined by an edge extending between the interior and said exterior surfaces of the wall that is configured to diffuse the gas exiting the diffuser canister through the aperture. The edge of the aperture is configured such that the cross-sectional area of the aperture that is proximate to the exterior surface of the wall is larger than the cross-sectional area of the aperture proximate to the interior surface of wall. The edge includes an angled portion configured such that opposing sides of the aperture have an angle alpha therebetween in the range of about 20 degrees to about 145 degrees. The aperture has a diameter d1 proximate to the interior surface of the wall and is configured so that the diameter d1 and wall thickness t have a ratio d1 to tin the range of about 0.5 to about 4. An alternate embodiment of the air bag device comprises an aperture defined by an edge that is configured so that the cross-section of aperture is non-smooth and causes turbulence in the gas stream.

A traction adjustable cervical collar transferring weight of the head from the cervical spine to the shoulders. A collar portion releasably encircles the neck and is inflated by inflating apparatus. A bladder of the inflating apparatus is a part of the collar portion and a squeezable hand bulb of the inflating apparatus selectively inflates the bladder. The bladder has a lowermost surface that is flat for preventing slippage along the shoulders of the wearer. The bladder has a pair of side walls and contains a plurality of ribs extending upwardly from the lowermost surface thereof and which have a portion of the pair of side walls of the bladder adjacent thereto being attached thereto so as to provide rigidity to the bladder and prevent it from rolling over onto itself during use.

The present invention provides a coolant for an air bag inflator in which unevenness in density in the axial direction is reduced even though the coolant is compressed in its axial direction.The coolant is a molded product made of wire rods and compressed in its axial direction. An absolute value of a difference between a radial pressure loss of the axially upper half portion of the coolant and a radial pressure loss of the axially lower half portion of the coolant is 10 mm H2O or less at a flow rate of 250 liters / minute under the atmosphere of 20° C.

An airbag assembly may include an airbag and an inflator that provides inflation gas to inflate the airbag. A filter module may be positioned such that inflation gas exiting the inflator must first pass through the filter module. The filter module may be formed of a sheet of metal that is wrapped into a generally tubular shape. The filter module may have a first layer and a second layer that generally encircles the first layer. The first layer may have a pattern of holes and dimples that are separate from and / or displaced from each other. The dimples may protrude toward the second layer to maintain spacing to enable relatively unrestricted gas flow from the holes of the first layer through unaligned holes of the second layer. The resulting tortuous gas flow path may help to slow, cool, and / or purify the gas before it exits the inflator.

The invention provides a device and a method for detecting ball stones in an air bag type ball mill, and relates to the technical field of a ball mill detection device. The device comprises a ball mill cover (2) at an opening of the ball mill (1), and is characterized in that the lower part of the ball mill cover (2) is provided with a protective head (3) which can be inserted into the opening of the ball mill (1); a cavity structure is formed in the protective head (3); a detection head (4) is arranged at the lower side in the cavity, and the bottom end of the detection head extends into the ball mill (1); an air bag (7) is fixedly arranged above the detection head (4); the upper part of the air bag (7) is connected with a gas pressure detection sensor (10) outside the ball mill cover (2) and an air bag inflating device; the gas pressure detection sensor (10) is connected with a signal processing device. The method for detecting the ball stones in the air bag type ball mill comprises the steps of calibrating, acquiring a data list, and then detecting the amount of ball stones in the ball mill. After the device and the method are adopted, the amount of the ball stones can be detected, a data basis is provided for adding ball stones, and the amount of the ball stones in the ball mill is stable.

The invention discloses an offshore steep pipe distributed post-grouting device, an air-type grouting assembly and a construction method. The air-type grouting assembly comprises a grouting pipe for being placed into a vertical square grouting channel, square rubber air bags which are wrapped on the outer side of the grouting pipe at upper and lower intervals, an upper air pipe connected with thesquare rubber air bag at the upper end to inflate the square rubber air bag, and a lower air pipe connected with the square rubber air bag at the lower end to inflate the square rubber air bag, and aplurality of slurry outlets are uniformly formed in the outside surface, avoiding the square rubber air bags at the upper and lower ends, of the grouting pipe; and the square rubber air bags are filled under the action of external air pressure, and the square rubber air bags at the upper and lower ends under the sufficient air state form a local closed space with the vertical square grouting channel. According to the air-type grouting assembly, a closed space is formed by using the square rubber air bags arranged up and down and the inner wall of the vertical square grouting channel under sufficient air state, and the local grouting in the vertical square grouting channel is achieved.

An apparatus for continuously controlling fluid flow in a sewer conduit, comprising: a) moisture sensors detecting levels of fluid in this conduit; b) an inflatable bladder, mounted in the sewer conduit for releasably sealing in fluid tight fashion a section of this conduit; an air compressor, for inflating the bladder; and a control box including a CPU, sensitive to the moisture sensor and actuating the air compressor responsively to conduit fluid level conditions reaching beyond a preset threshold value. The performance of the apparatus is independent of the speed of fluid flow in the sewer conduit.

Tissue dissecting device, including an inflatable bladder configured to be inserted into a body via an introducer tube in a compact deflated state, and to be inflated to a substantially planar form in a manner which dissects tissue. Method for dissecting tissue, including inserting an inflatable bladder, in a deflated state, via an introducer tube, into a space in a body, and inflating the bladder to substantially planer form, thereby dissecting tissue. Method for dissecting tissue, including inserting an introducer tube via an incision into a body, inserting an inflatable bladder, in a defined state, via the introducer tube, into a space in the body, pulling the introducer tube back at least a length of the deflated bladder, inflating the bladder, via a filling tube, to substantially planar form, thereby dissecting tissue, disconnecting the filling tube from the bladder, retracting the filling tube and the introducer tube from the body.

The invention relates to the technical field of air tightness detection, and discloses an inert gas sealing device detection device capable of efficiently detecting and positioning, which comprises a device main body, a supercharging device, a reset device, a docking device, a fixing device and a sealing device. According to the inert gas sealing device detection device capable of efficiently detecting and positioning, after an air bag is inflated to expand and fix a part, a hydraulic rod is started to drive a sealing plate to cover the top surface of a placement box, so that a sealing state is formed;when the part leaks air flow to impact the air bag at high speed, and the camera transmits recorded sealed leakage data to the display screen for displaying, so that the beneficial effects of quickly detecting leakage and detecting the leakage position are achieved, the to-be-detected part is directly put into the inner side of the placing box, and the placing box is moved to reset after being placed, and meanwhile, an inflation pump is started to inflate and expand the air bag and fix the parts placed on the inner side of the placing box, so that the beneficial effect that the parts of different models can be detected and fixed quickly is achieved.

The invention discloses an air bag sealing device for a concrete test block penetration test. The air bag sealing device comprises a base used for bearing a test block, a sleeve arranged on the base,the cross section of the air bag being annular, and an upper cover which covers the sleeve. The air bag is higher than or equal to the test block; an inflation cavity is formed in the air bag; a gap is reserved between the inner wall of the air bag and the side surface of the test block before the air bag is inflated; after the air bag is inflated, the inner wall of the air bag is tightly attachedto the side face of the test block, an inflation opening communicated with the inflation cavity is formed in the outer wall of the air bag, an opening is formed in the position, corresponding to theinflation opening, of the side wall of the sleeve, at least one water injection channel is formed in the base, and water injection openings of the water injection channels are formed in the peripheralwall of the base. The air bag sealing device for the concrete test block penetration test is simple in structure, time-saving, labor-saving, high in sealing efficiency and capable of guaranteeing thesealing quality.

An inflatable buoy (20) that may be worn by a person, such as a swimmer, and used as a flotation aid and beacon in an emergency situation. The buoy (20) has securing means (2a) for being secured to a forearm (3) of a person, an inflatable balloon (4a) that when uninflated is disposed on the securing means (2a) and when inflated is separate from the securing means (2a), a tether (7a) anchoring the balloon (4a) to the securing means (2a), and a gas dispenser (30a) that, when activated, inflates the balloon (4a) with gas. The buoy (20) also has a pair of handles (21) for gripping by a person as well as a pop-up flag (22). In another embodiment of the invention, the buoy may be used as an air beacon whereby the balloon is filled with gas that is lighter than air and the balloon can float to a height determined by the length of the tether.

The invention discloses an on-water garbage can, and relates to the field of environment friendliness. The on-water garbage can comprises a solar energy ball, a PLC, a storage battery, an air pump, anair pipe, a water flow electric generator, a water suction pump, an air bag, a hollow pipe and four garbage can bodies, the four garbage can bodies depend on each other in pairs to form a cylinder, the hollow pipe is located in the centers of the four garbage can bodies, the PLC and the storage battery are mounted on the top of the hollow pipe, the solar energy ball is mounted on the PLC, the PLCis connected with the air pump, the air pump is connected with the air pipe, the air pipe extends into an inner cavity of the hollow pipe, and the lower portion of the hollow pipe is connected with the air bag. The garbage can can float on the water surface, floating garbage in the water can be collected, along with continuously-increased collected garbage, gravity is increased, a water level sensor detects that data are sent back to the PLC, the air pump is controlled to be started, the air bag is inflated, buoyancy is increased, a cornice of the garbage can can be kept under the water by 1to 3 cm until the can is full of the collected garbage, a worker can clean the garbage in time, the on-water garbage can be cleaned without ship arrangement, labor intensity is reduced, and treatmentcost is reduced.

The invention discloses vehicle-mounted drowning life-saving self-rescue electronic equipment comprising a body, wherein a carriage is arranged in the body; windows are symmetrically arranged at the top ends of the left and right walls of the carriage; a gas cylinder is arranged in the bottom wall of the carriage; identical structures are symmetrically arranged in the left wall and the right wallof the gas cylinder; description is carried out by taking the left wall structure of the gas cylinder as an example, the left wall of the gas cylinder is connected with a main gas channel, the openingof the airbag inflation valve is realized through electromagnetism or a screw rod; therefore, the vehicle can float on the water surface for a longer time and thus passengers can save themselves forlonger time; after the equipment sinks into water, the displacement limitation of the firing pin is removed through electromagnetism or a screw rod, then the gunpowder is ignited to enable the hammerto break a window, and finally the ventilation device capable of floating on the water surface is released through the push rod to supply oxygen to the passenger who cannot escape in time underwater so that the survival time is prolonged.

The present invention provides a device that provides relief for lower back pain and corrects bad posture. The back brace device comprises a plurality of belts having a rear side, a front side, and a first end removably securable to a second end. The rear side of at least one of the belts has an inflatable bladder that is controlled by an air pump. The device further comprises having a heating element and a vibration mechanism that can be turned on or off as desired by the user. The present invention is used by placing the belt around the waist of the user and securing the first and second ends to one another via one or more suitable fasteners. The bladder is then inflated in order to provide support to the back of the user.

The invention belongs to the field of medical equipment, and particularly relates to a novel trachea cannula. The novel trachea cannula comprises a cannula body, a balloon and a balloon inflation connecting pipe; the lower end of the balloon inflation connecting pipe is communicated with the balloon, the upper end of the balloon inflation connecting pipe is connected with a balloon inflation device, a strip-shaped groove is formed along the outer wall of the cannula body, and the balloon inflation connecting pipe is embedded in the strip-shaped groove; an annular groove is formed in the lower section of the cannula body, and the balloon is fixed in the annular groove. According to the novel trachea cannula, visual operation of the trachea cannula is achieved, and meanwhile it is guaranteed that a camera device is used repeatedly; insertion of the trachea cannula is safe, and the probability of disengagement of a gular cartilage and damage of the inner wall of a respiratory tract is reduced; collapse and bending of the trachea cannula body at the meshing part are prevented; oxygen supply is not interfered with surgical operation.

The invention discloses an intelligent inflatable waistband. The waistband comprises an airbag assembly, an air source assembly, a control assembly and a waistband body, wherein the airbag assembly comprises an airbag and a turnover box, the turnover box is connected and fixed on the waistband body, and the airbag is arranged in the turnover box and is connected with the waistband body through a plurality of connecting lines; the air source assembly comprises an air storage cylinder and an automatic cylinder opening device; an air pipeline is arranged in the waistband body; the control assembly comprises a control chip, a power supply, an electronic circuit and a pressure sensor, the electronic circuit and the pressure sensor are electrically connected with the control chip respectively; when water pressure and time which are detected by the pressure sensor reach the set values, the control chip starts the automatic cylinder opening device to open the air storage cylinder to supply airto the airbag through the air pipeline, the airbag is inflated and expanded to be ejected out of the turnover box and is filled with the air to be fully expanded, and the fully expanded airbag pullsthe waistband body through the connecting lines and supports a human body to float on the water surface.