68results about How to "Limit escape" patented technology

An assembly structured to introduce a trocar or other medical instrumentation into a body cavity through an entry site formed in the cavity wall. The introducer assembly includes a base formed of a semi-rigid, flexible and / or a semi-flexible material having an instrument receiving passage extending there through, and further including an exterior sealing surface extending between proximal and distal portions of the base. The sealing surface has a predetermined configuration which is shaped to conform to the shape of the entry site as the base passes into the entry site. A fluid restricting seal is thereby established between the exterior of the base and the peripheral tissue surrounding the entry site, particularly when the entry site is formed by an incision commonly utilized an open laparoscopic procedure.

A self-sealing male connector having a body, a resilient boot mounted over the body, and a male thread hub. The body is formed with an elongate post that extends to the distal end. The body includes a fluid flow lumen extending from its proximal end to its distal end. At its proximal end, the body may be formed as a female Luer connector, or may be directly connected to tubing, or other arrangements. The internal fluid flow lumen extends through the post to its distal end. The body includes a first groove in which is mounted the boot. In a second groove is mounted the thread cuff. The thread cuff is used to engage a female connector and through thread action, draw in into engagement with the post. As the female connector is further engaged with eh sealed male connector, the post protrudes through the boot and into fluid communication with the female fluid flow passage thus establishing a flow path through both connectors. The boot forms a seal with the female connector when engaged and returns to seal the male connector post and fluid flow passage within disconnected from the female connector.

A structure that can be partially assembled at one location, transported to a site in modules, and then fully assembled into a structure suitable for housing a therapeutic radiation source is disclosed. The modules include reinforced walls that are filled with radiation shielding fill material to form a barrier around a central treatment area. Additional modules are placed over the first set of modules and form a barrier above the treatment room. A door with a selectively retractable threshold provides access to the treatment room. The module including the radiation equipment is included in removable portions so that the radiation equipment can be removed and replaced. The modules also form a patient waiting room and control area separated from the treatment by the barrier.

A cat confinement fence for limiting a cat from escaping from a confinement area includes a plurality of posts spaced apart and mounted in the ground to define the confinement area. Each of the posts includes a main section and a pivoting section. A first end of each main section is mounted in a ground surface and a second end of each main section is secured to the pivoting section. The pivoting section is pivotable between an upright position and an extended position. Upper fencing is mounted to and between the plurality of posts and extends across at least a portion of the main section and at least a portion of the pivoting section of each of the plurality of posts. A resilient member is mounted proximate to the second end of the main section of each post and biases the pivoting section of the respective post toward the upright position.

An oxygen-absorbing composition, device, and method for oxygen scavenging in a low moisture environment are provided. The present invention provides an oxygen absorbing composition which includes an oxygen reducing agent, water, a carrier, an electrolyte salt, and a humectant salt, which may be the same as the electrolyte salt, present in an amount sufficient to reduce the water activity of the composition to below 0.6. Also included are methods of using the composition.

Flasks 10, 110, 210 and 310 serve as a storage container for toothbrushes 2, 2A and serve are reservoirs for a treating solution, such as a cleaner, which can be used to clean, deodorize, sanitize, decontaminate or otherwise treat the toothbrush between brushings. Flask 10 has an upper section 14 separated from a lower section 22 by an intermediate section 18, which contains a constricted throat 20. A toothbrush 2 in an inverted position would be supported by an inwardly tapered surface 16 above the constricted throat 20. Toothbrush bristles 6 would be located in the enlarged lower section 22, which serves as a reservoir for the treating solution. The constricted throat 22 can be sealed so that overpressure in the lower section can enhance the action of the treating solution. A covered flask 110 can also be used to store or merchandise the toothbrush.

The invention relates to the technical field of air purification, in particular to an air purifier, which comprises an air passage, wherein a fan is arranged in the air passage, the interior of the air passage is sequentially provided with a filtering net, an ionizing and polarizing assembly, an electromagnetic deflection assembly, an adsorbing assembly and an ultraviolet light disinfection assembly along the air flow direction, the filtering net sequentially comprises a metal filtering net layer and a fiber filtering net layer along the air flow direction, the ionizing and polarizing assembly comprises an ionizing pole plate on the axis of the air passage, the ionizing pole plate is provided with a plurality of barbed poles, the electromagnetic deflection assembly comprises an excitation deflection coil, the adsorbing assembly comprises the grounded air passage body or an adsorbing layer, the adsorbing layer is grounded and is attached to the inner wall of the air passage, and the ultraviolet light assembly comprises a plurality of ultraviolet light pipes. The air purifier has the advantages that the direct passing, jumping and escape of particles in the air are limited, the adsorbing effect is improved, and the purifying efficiency is improved; the air purifier is favorable for the gaseous particles with maximum particle size smaller than or equal to 10 micrometers, namely PM10, and is especially suitable for the particles with maximum particle size smaller than or equal to 2.5 micrometers, namely PM2.5.

The invention discloses a light-emitting diode (LED) epitaxial structure and a manufacturing method thereof. The LED epitaxial structure successively comprises an epitaxial substrate, a leukotriene (LT)-GaN nucleating layer, a high-temperature non-doped buffer layer, a P-GaN layer, a P-AlGaN layer, a diffusion barrier layer, a multiple quantum well (MQW) luminous layer, an InGaN current expansion layer, an N-ZnO layer and a surface-coarsened ZnO layer. The manufacturing method comprises the following steps: pre-treating the epitaxial substrate; growing the nucleating layer; growing the buffer layer; growing the P-GaN layer; growing the P-AlGaN layer; growing the diffusion barrier layer; growing the MQW luminous layer; growing the InGaN current expansion layer; growing the N-ZnO layer; and growing the surface-coarsened ZnO layer. By using the LED epitaxial structure obtained by virtue of the manufacturing method provided by the invention, an excellent electrical property and a good optical property are obtained, the internal quantum efficiency and the electronic static discharge (ESD) resistance capability are improved, the lost light caused by total reflection is lowered, the external quantum efficiency is greatly improved, a high-brightness LED is obtained, and the purposes of development and sustainable development of the LED industry are greatly promoted.

The present invention relates to an anaerobic column reactor for biodegradation of wastes. Particularly the present invention relates to a process for conversion of biodegradable wastes to biogas and compost. More particularly, the present invention relates to an anaerobic reactor with unique arrangement of expanded and constricted portions alternatively placed vertically over each other which enhances the mixing pattern and thereby the mass transfer rates while controlling the biomass washout by regulating the upflow liquid velocity.

An evaporative emissions canister for use in an automotive evaporative emission system to control emission of fuel vapors to the atmosphere. The canister includes an integrally molded housing having a circumferential side member, a top member and a bottom member; a hydrocarbon-adsorbing material disposed therein so as to provide a vapor adsorbent chamber for adsorbing hydrocarbon fuel vapor flowing therethrough; and an internal membrane located above the vapor adsorbent chamber in the fresh air side of the adsorbent chamber for preventing the fuel vapor molecules from passing through the internal membrane while allowing the air molecules to pass therethrough. The internal membrane is characterized as a cellular fibular material having physical properties sufficient to effectively cause any fuel vapor component molecules and associated pollutants to be sufficiently filtered or separated on the membrane while allowing fresh air molecules to pass freely therethrough.

A fire ant trap for eradicating fire ants at a mound includes a domed enclosure having a lower rim peripherally engaging the mound and secured thereat by stakes. A tubular auger is threaded at the top end and has a perforated beveled tip that rotates into the top of the mound. A fire ant agent is dispensed to the tip from an upper fill opening that is sealed by a removable cap.

A gaming headset adapted for precise delivery of chemical substances capable of olfactory stimulation, such as odorants, fragrances, pheromones, etc. The headset includes at least one earpiece containing a speaker, a feature for securing the earpiece to the person's head while positioning the speaker over one of the person's ears when the headset is worn, an armature disposed relative to the earpiece so as to extend toward the person's mouth, a microphone located on the armature so as to be located in front of the person's mouth, and a feature supported by and extending along the armature for delivering at least one chemical substance to the person's nostril's when the headset is worn.

An air filter system with an air filter element having an inflow and an outflow face and comprising alternating flat and pleated layers, which are configured to form channels. The channels are alternately sealed in inflow and outflow direction, such that the medium to be filtered must pass through one of the layers as it flows from the inflow face through the filter to the outflow face. An adsorber element made of an activated carbon coated honeycomb structure is disposed adjacent the air filter element.

A method and system for displacing water from a porous geological formation are provided. The zone to be displaced is defined by the injection of water into one or more barrier wells around the zone. One or more gas injection wells and water production wells are located within the zone. During pressurized gas injection within the zone, the barrier wells are operated to achieve a hydraulic pressure barrier surrounding the zone that is sufficient to prevent penetration therethrough by the injected gas. The well system is operated to concurrently limit gas entry into the water production well. Accordingly, the gas displaces water downward within the zone such that water is produced at the water production wells.

Cable grommets for use with raised-floor tiles permit the passage of cables while simultaneously limiting the amount of cool air escaping from under-floor ducts and plenums. The cable grommet includes a floor tile mounting flange, one or more pairs of opposed, overlapping finger assemblies, and one or more pairs of opposed finger mounting flanges for coupling the finger assemblies to the underside of the floor tile mounting flange. The edges of the of the triangularly-shaped fingers are configured to flex around the cables while the interior core section remains generally rigid and parallel to the plane of the floor to restrict the loss of cooling air. Alternatively, the cable grommet includes a floor tile mounting flange and a finger panel defining a sinusoidal cut along its length and a plurality of intersecting short cuts.

The improved circular secondary clarifier of the present invention requires less surface area and low HRT and provides efficient solids-liquid separation. The improved clarifier has better SS and BOD reduction and provides high under flow solids concentrations, as compared to conventional secondary clarifiers. The improved clarifier is even capable of treating wastewaters containing low MLSS concentration. One of the biggest advantages of improved clarifier is that it does not require a separate sump cum pump house as it removes the settled sludge using suction mechanism thereby reduces capital and recurring cost. Further, it provides natural flocculation, which is essential for agglomeration of solids and increases particle size referred to as ‘floc’ and eliminates provision for a separate flocculation facility thereby reduces capital and recurring costs.

An arrangement for an aircraft turbine engine combustion chamber including an injection system and a fuel injector is provided. The injection system includes an injector nozzle guide, the inner surface of which delimits an opening for centering the nozzle, which includes an outer casing. The arrangement further includes a sealing device between the inner surface of the guide and the outer casing. The sealing device includes a first part accommodated in a groove of the outer casing, the groove being delimited, in part, by a downstream delimiting surface, the first part having a first sealing surface and bearing axially against the downstream delimiting surface; and a second part having a second sealing surface bearing radially against the inner surface of the guide.

A piston assembly is provided for a gas-operated firearm of the type having a chamber and a barrel. The piston assembly includes a gas expansion housing and a piston mounted within the gas expansion housing. An annular recess is formed in the outer wall of the piston to receive exhaust gases diverted from the barrel upon firing of the firearm. At least one longitudinally extending groove extends from the annual recess to the head of the piston and forms a pathway for diverting the exhaust gases to the head of the piston. During firing, pressurized gases are diverted into the annular recess and expand longitudinally from the annular recess to the piston head, whereupon the pressurized exhaust gas drives the gas piston rearwardly along the housing.