32results about How to "Effective seal" patented technology

A reclosable bag zipper having a female profile assembly that terminates in a first curled end. A male profile assembly opposes the female profile assembly to selectively close the opening, The male profile assembly terminates in a second curled end. A riser is formed by non-uniform portions of the curled ends at one end of the bag. The slider has a dividing member and depending opposing first and second sides that define a central channel for receiving the curled ends. The curled ends create a distal bias against the slider, wherein: the first and second sides engage the profiles when moved in a closing direction; the dividing member separates the profiles when moved in an opening direction opposite to the closing direction; and when the slider is moved in the closing direction onto the riser, the dividing member moves distally away from the profiles so that the zipper may be fully closed.

An electronic device includes a multilayer circuit board having a non-planar three-dimensional shape defining a membrane switch recess therein. The multilayer circuit board may include at least one liquid crystal polymer (LCP) layer, and at least one electrically conductive pattern layer thereon defining at least one membrane switch electrode adjacent the membrane switch recess to define a membrane switch. The electronic may further include a compressible dielectric material filling the membrane switch recess. The electronic device may also include at least one spring member within the membrane switch recess.

A seal assembly includes a first seal, a second seal, and a positioning element. The first seal includes at least one longitudinal slot therein. The second seal includes at least one longitudinal slot therein and is positioned coaxially with the first seal. The positioning element is positioned coaxially with the first seal. The at least one longitudinal slot of the first seal is offset from the at least one longitudinal slot of the second seal in a radial direction from a longitudinal axis of the seal assembly. The seal assembly can be integrated with a closing valve. The seal assembly can also be integrated with a capsule.

A disposable sanitary absorbent article such as an absorbent pad (e.g., male guard) is provided which is defined by opposed lateral sides and opposed longitudinal sides extending between said lateral side, comprising a topsheet, a backsheet and an absorbent core disposed therebetween having opposed lateral sides and opposed longitudinal sides extending between said lateral sides of said absorbent core, an adhesive layer attached to said backsheet and a release paper strip covering the adhesive layer. The longitudinal sides or edges of the pad define side flaps outwardly relative to the longitudinal sides of the absorbent core, and at least two spaced apart elastic members are secured along each longitudinal side flap, with each elastic member having two active ends, at least one of which is located outwardly relative to the corresponding end of the adhesive layer.

A nutritional feed supplement composition for post rumen metabolism in ruminant animals composed of spheroid nutrient particles coatingly covered with divalent metal salts which are insoluble in near-neutral rumen fluid but soluble in acidic post rumen digestive fluids. The composition protects nutrients which would be of no value if exposed to rumen fluids but are beneficial when available for metabolism in post rumen digestive fluids. The nutrients may be dispersed in inert powders formed into spheroid particles, and the divalent metal salts may be dispersed in a resin membrane insoluble in all ruminant fluids. Nutrient particles in the composition include enzymes, amino acids, vitamins, single cell proteins, and medicinal materials. The divalent metal salts include magnesium phosphate, magnesium ammonium phosphate, and magnesium stearate. The resin membranes include polyurethane, polyethylene and polyacrylonitrile-butadiene-styrene. The inert powders include diatomaceous earth, feathermeal, and grain flours.

A replaceable bottle cap assembly includes a body that conforms to the top of a threaded beverage container, the assembly including an internally threaded portion that mates with the threaded neck of the beverage container. A set of adapters are releasably and interchangeably used in connection with the body, each adapter being releasably attached to the body and having a threaded portion for engaging the threaded neck portion of a beverage container. A hinged cap of the assembly provides selective access to the contents of the attached beverage container wherein the assembly is sealingly and releasably attached to the container.

An apparatus is provided for cleaning paint rollers and / or brushes. It comprises a roller cover / brush holder that may be coupled to a drill or other power tool, and a container and cap assembly. Advantageously, the container accommodates the holder and a roller cover or paintbrush with a minimal effective volume of cleanser. The cap closes and substantially seals the container to contain spray or spillage during high-speed rotation of the holder within the container. In use, the container is filled with cleanser, such as soapy water, and the roller is spun for several minutes. The container is drained, then refilled with rinse water and the process is repeated as needed. The roller or brush may be spun dry after cleaning, or between wash and rinse cycles. The apparatus provides effective cleaning with a reduced volume of water or cleanser and requires minimal clean-up.

A refrigerator having French-style doors is sealed between the doors by a first sealing pad linearly biased from a base fixed within a recess provided in an inner side portion of one door, and a second sealing pad carried by a mounting arm which is pivotally mounted and angularly biased from an inner side portion of the second door. When either door is closed against the other, the first and second sealing pads deflect and conform to each other to provide an effective seal. In one preferred embodiment of the invention, the first and second sealing pads take complementary concave and convex shapes which provide a larger cross-section for the overall sealing area and establish a high insulation value, while avoiding the need for an internal heater commonly employed in refrigerator doors.

A composition of matter and a method of sealing a permeable formation is provided incorporating the composition to reduce or eliminate lost circulation in permeable formations. The composition comprises one or more sealing components, ranging in size from approximately 10 to approximately 750 microns, a wetting component, a viscosifier component and an activator or flocculent. A dry mixture of the components may be added directly from the bag to the drilling mud to the permeable formation and will not set up inside the drill string. The mixture will seal the formation in an aqueous or organic environment, thus removing the need to form a pill in a slugging pit prior to introduction. The mixture dewaters at a rapid rate without regard to the time and temperature required for curing agents or other additives. The mixture does not require additional agents such as defoamers, accelerators, retarders or spacers to dewater and set as a solid plug.

A rotary pump includes a valve rotor and one or more vane rotors positioned around it. Each vane rotor has a vane that engages a slot in the valve rotor as the vane rotor rotates. A housing around the valve rotor and the vane rotor(s) defines a generally constant-radius pump space around each vane rotor and includes inlet and discharge openings associated with each vane rotor. As each vane rotor rotates within the housing, its vane sealingly interacts with the housing, while that vane rotor sealingly interacts with the valve rotor. The vane interacts with the channel, allowing the vane to move past the valve rotor. As the vane rotor rotates, the vane enters the pump space to divide the pump space into at least inlet and discharge portions, while fluid within the discharge portion is discharged or compressed and additional fluid is drawn into the inlet portion.

The invention discloses a three-bed combination pyrolysis gasification and tar cracking integrated system for solid waste and belongs to the technical field of solid waste treatment. The system comprises a solid waste feeding system, a pyrolyzer, an oxidizer system, an oxidizer cyclone separator and a cyclone reactor. According to the system, the circulating flow of bed materials among three bed is realized by virtue of a circulating fluidized bed oxidizer, a bubbling or turbulent fluidized bed pyrolyzer and the cyclone reactor which are combined with a gas stripping tube and a sedimentation tube, and the adequate mixing between the hot bed materials and pyrolysis gas is realized by virtue of the cyclone reactor, so that the tar cracking and the gas purification are greatly promoted; by virtue of structural optimization of an oxidizer and the pyrolyzer, the mixed use of different bed materials and the improvements of a bed material circulating flow system, the gas-liquid mixing level and a feeding system, the integral pyrolysis gasification efficiency is greatly improved, the heat value of product gas is greatly increased, the tar content of product gas is greatly reduced, and high-quality clean pyrolysis gas / synthesis gas is prepared.

A fuel cell unit incorporates a pair of plates; one plate an anode, the other a cathode. Respective anode and cathode plates are physically bonded together to form such pairs; wherein pluralities of the pairs are secured together to form commercially available fuel cells utilized to generate electric power. Material employed between respective pairs of plates are in the nature of resilient media arranged about selected areas of the plates to confine paths for fluids adapted to flow within said selected areas. A method of manufacturing such fuel cell units involves the injection of a rapidly curable liquid silicone material into aligned apertures of the respective plates, whereby liquid silicone material flows through and between the plates to a) seal between respective anode and cathode plates and to b) form an insulation layer on the backside of the anode.

A sealing and inflating assembly includes an air compressor for generating a pressurized air, a tire repairing container for receiving a sealing preparation having a mouth opening, an outlet piece attached to the mouth opening of the container for guiding the pressurized air to flow into the container, and having an inlet conduit for allowing the sealing preparation to flow out of the outlet piece, a pipe coupled to the inlet conduit of the outlet piece for directing and guiding the pressurized air to flow into an upper space of the container without flowing through the sealing preparation when the container is disposed upside down.

A hydrogen storage material tank including a shell along a longitudinal axis, a hydrogen supply and collection duct along a longitudinal axis, a stack of plural cups around the duct, wherein each cup includes a base perpendicular to the longitudinal axis, a passage allowing installation of the cup around the duct, an outer wall perpendicular to the base, in contact with the shell and an inner wall perpendicular to the base and in contact with the duct, wherein each cup is force-fitted on the duct and each cup includes a mechanism allowing mutual engagement of the cups in one another by mechanical deformation of free ends of the outer walls of the cups.

The invention relates to the field of suspension cables of bridge parts, in particular to an inhaul cable with sealing structure rain covers and a manufacturing method thereof. The inhaul cable with the sealing structure rain covers comprises a cable strand body (1). The inhaul cable with the sealing structure rain covers is characterized by further comprising a cable duct (2), shock absorbers (3), a sealant (4 ), the rain covers (5), a sealing ring (6), an end cover (7) and air bags (8), wherein the cable strand body (1) is sleeved with the cable duct (2), and the two shock absorbers (3) arearranged on the cable strand body (1) in a hooped mode; the two ends of the cable duct (2) are correspondingly sleeved with the rain covers (5); the air bags (8) are arranged on the inner side of theend cover (7) and between the outer side of the cable strand body (1) and the inner sides of the rain cover (5). The manufacturing method of the inhaul cable with sealing structure rain covers is characterized by comprising the following steps of in sequence (1) installing the shock absorbers; (2) arranging the rain covers; (3) arranging the air bags and (4) closing. The inhaul cable with sealingstructure rain covers is simple in structure, convenient to install, good in sealing performance and long in durability.

The invention discloses a star type feeding valve. The feeding valve comprises a shell and a rotor impeller located in the shell; the shell is provided with a feeding opening and a discharging opening; the rotor impeller is provided with a plurality of center plates, the two sides of the feeding position of the rotor impeller are both provided with glands, the lower ends of the glands are buckled on the outer edge of at least one center plate of the rotor impeller, and a feeding channel communicated with the feeding opening is formed in the upper ends of the glands on the two sides; the shell is further provided with an elastic compressing device, and the elastic compressing device compresses the glands so that the glands and the rotor impeller are in seal contact at the buckling position of the glands and the rotor impeller; and the star type feeding valve can achieve long-time effective sealing.

A disposable compressed gas cartridge has an envelope formed of a cylindrical wall portion, an end wall portion enclosing a first end of the cylindrical wall portion, a neck portion formed at a second end of the cylindrical wall portion, and a membrane spanning across the neck portion such that the envelope is arranged to contain gas under pressure therein. A resilient sealing member is integrally and externally supported on the second end of the envelope so as to abut the seat surface about a charging pin of a compressed gas consuming device. Sealing engagement between the cartridge and the device being charged with compressed gas by the cartridge is provided primarily by the sealing member on the cartridge which is replaced together with the cartridge to always ensure that the sealing between the cartridge and the device is accomplished with a new and effective sealing member.

The invention discloses an elastic grouting counter-pressure sealing structure of an expansion joint. The elastic grouting counter-pressure sealing structure of the expansion joint comprises a deforming joint which contains underground water or has underground water during a rainy season and is located between two concrete interfaces in structures such as an urban underground pipe galley, a high-speed railway tunnel, a normal railway tunnel and a highway tunnel; and a grouting material layer, an elastic material layer, an elastic pipe and an epoxy grout staggered platform are sequentially arranged in the deforming joint from inside to outside and are used for blocking underground water. The invention further discloses a constructing method for the elastic grouting counter-pressure sealing structure of the expansion joint. According to the elastic grouting counter-pressure sealing structure of the expansion joint, sealing for the deforming joint can be conducted effectively, and the problems of repeated seepage and falling of sealing materials in the prior sealing art are solved.

A scroll pump includes a frame, a stationary plate scroll, an orbiting plate scroll, a tip seal(s), an eccentric drive mechanism which drives the orbiting plate scroll, and an axial compliance system. The eccentric drive mechanism includes a crankshaft, and bearings and a counterbalance disposed on the crankshaft. The counterbalance is mounted so as to be slidable along the crankshaft in the axial direction of the crankshaft. The axial compliance system includes a flexure and one set of springs for pre-loading the bearings. The flexure is interposed between one of the bearings and the counterbalance. The flexure allows the orbiting plate scroll to move away from the stationary plate scroll in the case of an assembly process which would otherwise result in the tip seal(s) being too forcefully engaged with the plate of the opposing plate scroll.

Apparatus (10) for helping to protect an occupant (28) of a vehicle (12) that has a side structure (16) and a roof (18). The apparatus (10) includes an inflatable occupant protection device (14) that is inflatable away from the vehicle roof (18) to a position between the side structure (16) of the vehicle (12) and the vehicle occupant (28). The apparatus (10) further includes a fill tube (22) for delivering inflation fluid to the protection device (14). The protection device (14) includes an opening (104) through which the fill tube (22) extends and a portion (106) adjacent the opening that forms a friction fit around the fill tube (22). The friction fit forms an effective seal for preventing inflation fluid leakage through the opening (104).

The invention discloses an improved submerged pump for conveying titanium tetrachloride. The upper part of an annular throttling plate (3) in an annular cavity formed between a supporting pipe (2) and a pump shaft (4) is a nitrogen isolation cavity (7); a group of filler (20) is arranged on each of the upper side and the lower side in a filler box (11); an air division ring (19) is arranged near each group of filler; an isolated nitrogen channel is formed in the filler box (11) and provided with an isolated nitrogen inlet (14) and an isolated nitrogen outlet (15) communicated with the nitrogen isolation cavity (7); the filler box (11) is also provided with a cooling nitrogen channel with a cooling nitrogen inlet (18); and the inner end of the cooling nitrogen channel is communicated with the air division rings (19). The nitrogen isolation cavity prevents titanium tetrachloride steam from ascending, so that the filler at the upper end seals the nitrogen isolation cavity to form dual sealing; and therefore, the titanium tetrachloride liquid and the titanium tetrachloride steam can be effectively sealed.

A pumpable mine ventilation stopping wall structure comprised of a pumpable bag having spaced walls of generally parallel nonporous and flexible sheets with the sheets retained in spaced relationship with spaced flexible cross ties. The perimeter of the spaced walls are closed off with a permeable mesh having a mesh size which will permit restricted flow of cementitious grout therethrough for sealing the wall structure to surrounding rough mine faces. The bag is provided with at least one grout fill port for filling the bag by pumping cementitious grout into the bag.

A gasket arrangement for use between an intake manifold and a cylinder head of an internal combustion engine is provided. Individual runner grooves are formed around each of the manifold runner openings. A collective runner groove is formed around all of the individual runner grooves. A relatively compressible sealing gasket material is placed in each of the runner grooves and a barrier gasket material placed in the collective runner groove. The relatively compressible sealing gasket material provides an effective seal at low engine operating temperatures. The barrier gasket material provides an effective seal against the passage of hydrocarbons. The relatively compressible sealing gasket material is preferably silicone rubber. The barrier gasket material is preferably a fluorine elastomer having a high fluorine content of preferably at least 66.0%. Accordingly, the silicone gasket provides a seal while the fluorinated polymer gasket is relatively impermeable to hydrocarbons and satisfies emission requirements.

The invention relates to a ball seat of ball injection activated sliding sleeve, a manufacture method of the ball seat and a sliding sleeve. The ball seat comprises a tubular body and a pressure-bearing sleeve mounted in the tubular body. The pressure-bearing sleeve comprises a body attaching to the inner surface of the tubular body in a covering manner. Corrosion resistance of the tubular body is poorer than that of the pressure-bearing sleeve. In an intra-well liquid environment, this ball seat can come off automatically, thus avoiding drilling removal of the ball seat.

The invention discloses a sealing rubber sleeve of a low-temperature soluble bridge plug and a preparation method of the sealing rubber sleeve, and relates to the technical field of oil and gas well sealing equipment. According to the sealing rubber sleeve, polyvinyl alcohol resin, a plasticizer, an acid-binding agent and a filler are compounded, and the synergistic interaction effect is achieved by adjusting the components and the proportion, so that the obtained sealing rubber sleeve is low in melting point and easy to form and process, the mechanical properties such as hardness and strength of the sealing rubber sleeve meet the use requirements of oil and gas well sealing, and the pressure-bearing sealing performance, the assembling performance and the low-temperature dissolving performance are good. The sealing rubber sleeve of the low-temperature soluble bridge plug provided by the invention can be specifically prepared into a sealing rubber sleeve, and the sealing rubber sleeve is used as a bridge plug accessory of an oil and gas well and has good assembling performance and ideal pressure-bearing sealing performance with other components so as to effectively seal the oil and gas well. When the oil-gas well needs to be dredged, the sealing rubber sleeve can be rapidly dissolved in water under the low-temperature condition, and the use requirements of oil-gas well sealing equipment are well met.

The invention provides a door-window sealing strip which comprises a cuboid sealing strip body with an opening groove and a rotatable button connected with the sealing strip body. The rotatable button is in mechanical connection with the sealing strip body. The two side end faces in the length direction of the sealing strip body are provided with locking pieces which extend outwards respectively. The door-window sealing strip has the advantages of being simple in structure, capable of carrying out effective sealing, long in service life, convenient to maintain and low in machining cost.

The invention provides a sealing structure and an air conditioner with the same. The sealing structure comprises a sealing body, wherein a connecting hole is formed in the sealing body, the connecting hole is used for mounting a connecting pipe, and a hole diameter of the connecting hole is adjustable; and the sealing body is arranged in a mounting hole and can be connected with the connecting pipe and the mounting hole in a sealed mode. According to the sealing structure and the air conditioner with the same provided by the invention, connecting pipes of different sizes can be effectively sealed.

The invention relates to the field of artificial respirators, and more particularly relates to an inflatable artificial respirator which can ensure that gas sufficiently enters into lungs of a rescuedperson. The inflatable artificial respirator is characterized by comprising an inflatable hollow column, the shape of the inflatable hollow cylinder is a columnar column, the inflatable hollow columnis made by one of a rubber, plastic film and a cloth coating, and an air-blowing mechanism for blowing air to the inflatable hollow column is arranged on the inflatable hollow column; two stuffy noses for blocking the nose of the rescued person are connected with the side wall of the inflatable hollow column, and the stuffy noses are communicated with the inflatable hollow column. The inflatableartificial respirator which is convenient to carry and provided with the stuffy noses to facilitate operation solves the problem that an existing artificial respirator is inconvenient to carry and fixwhen used.

The invention relates to the technical field of valves of oil tanks, and discloses a mechanical breather valve of a vault oil tank. The mechanical breather valve comprises a valve body casing; a negative-pressure valve seat is mounted on the front side of an inner cavity of the valve body casing; a negative-pressure valve plate is movably clamped in the inner cavity of the valve body casing and located above the negative-pressure valve seat; a first moving clamping column is fixedly connected at the top of the negative-pressure valve plate; and a positive-pressure valve seat is mounted on thefront side of the inner cavity of the valve body casing and located below the negative-pressure valve seat. According to the mechanical breather valve of the vault oil tank, an oil tank communicatingseat as well as an upper cylindrical film, a lower cylindrical film and an oil storage cavity mounted in the oil tank communicating seat is arranged at the bottom of the valve body casing, so that oilvapor at the oil tank cannot pass through the upper cylindrical film, and then the oil vapor cannot be volatilized; meanwhile, the outside air can enter the oil tank, then the oil tank can have the respiratory action, the oil vapor and the air can pass through the lower cylindrical film, and then the oil vapor is liquefied and stored in the oil storage cavity.