313results about How to "High fire rating" patented technology

An improved air gun for firing paint balls, pellets,, consisting of a passively venting and freeze resistant regulator, a pressure differential trigger mechanism, and a muzzle break with angled sidewalls. The freeze resistant regulator regulates incoming high pressure gas to a user predetermined pressure to operate the gun while avoiding freezing of the regulator associated with frigid incoming compressed gases and high firing rates. This is accomplished by using a heat transmission component formed by the engagement between a hemispheric shaped tip of a regulating pin and a hemispheric cavity of an adjustment piston. Passive venting of gas from the gun upon removal of the pressurized gas supply is provided by the regulator using a reciprocating regulating pin and adjustment piston which combine to compress a seal into a seat only when pressurized gas is attached to the air gun. Once detached from a pressurized air supply the compressed air in the gun vents through the seat. Firing of the gun is achieved using a pressure differential trigger mechanism capable of fine pull adjustment using a trigger biasing mechanism. Greater accuracy of projectiles leaving the gun is provided by the muzzle break featuring of a plurality of elongated oval slots having angled sidewalls to parse propulsion gases from the projectile which reduces air turbulence encountered by the projectile upon exit from the gun.

The present invention is fireproof building board of ceramic fiber, and belongs to the field of ceramic fiber material technology. The fireproof building board of ceramic fiber is produced with aluminum silicate fiber or light refractory stuffing as base material, and through adding one or several kinds of enhancing fiber; adding proper amount of organic binding agent or inorganic binding agent, stuffing and additive; pulping; forming; drying and other steps. The fireproof building board of ceramic fiber is used as the heat insulating board in building, and has high fire rating, high fire resistance, high heat isolating performance, high strength, low density and low cost.

The invention provides a fireproof decorative board base material. The fireproof decorative board base material comprises 10 to 90 parts of lightweight aggregate, 140 to 240 parts of gel material, 25 to 110 parts of filler, 0.1 to 6 parts of additives and 0.1 to 3 parts of reinforced fibers; the lightweight aggregate comprises 10 to 60 parts of perlite; the gel material consists of an organic gel material and an inorganic gel material; additives are one or combination of more of water reducing agent, early strength agent, accelerating agent, defoaming agent, air entraining agent, water repellent, curing agent, dispersing agent, coupling agent, flame retardant and smoke inhibitor; the reinforced fibers are one of asbestos, paper pulp, polypropylene fibers, fluorine resin fibers and glass fibers. Compared with the prior art, the fireproof decorative board base material has the beneficial effects that the base material which is high in strength, high in fireproof grade, small in density and likely to composite with an aluminum foil is provided, the base material is composited with the aluminum foil to form a decorative board, and a novel solution is provided for the decoration of an outer wall.

A handheld multiple-charge weapon for remote impact on a target with an electric current includes a housing including a launch power supply, a power source, a voltage converter, and a high voltage generator and triggered by a firing element. A clip on the housing carries a plurality of unitary cartridges. Each of said cartridges carries an electrode for contact action on the target and delivering the electric current thereto. The cartridge includes a wire connected to an electrode launched from each of at least two of said cartridges by the power source toward the target when the firing element is actuated in a firing position. The clip moves two cartridges to the firing position and after the firing element is actuated extracts the cartridges and associated wires. The wires are connected to the high voltage generator subsequent to the firing element being actuated after which the cycle of firing and extraction of spent cartridges can be repeated multiple times in manual, semiautomatic or automatic mode.

The rotary bolt (100) of the present invention has a cylindrical-shaped bolt assembly, which rotates about a central shaft 130. About the circumference of the bolt (100) are a number of chambers (110), each of which can accept a single projectile (112) as it passes through a feed aperture (107). As the bolt (100) rotates, it transports the projectiles (112) from the feed aperture (107) to the breech (104) from where the projectile (112) can be launched from the barrel (106) of the launching device (102).

A kit of components for constructing a building comprises a first coupling part (30) embedded in one end of a beam (14), and a second coupling part (50) embedded in one end of a post (12). The coupling parts (30,50) have end profiles (32,52) with apertures (34,54) which are registrable when the beam (14) abuts the post (12). Once registered with beam (14) resting on ledge (64) the apertures are slidably engaged by a locking pin (70), coupling the beam (14) to the post (12).

The invention provides a house interlayer cast-in-situ cavity floor. The house interlayer cast-in-situ cavity floor comprises interlayer space height reserved in a main body house building, light steel beams, a light steel beam and wall slab combined member, a reinforced concrete upper flange slab, a hollow ribbed steel mesh and a lower flange thin slab compounded with concrete mortar at the bottom of the hollow ribbed steel mesh, wherein a house interlayer cast-in-situ cavity floor is arranged in the reserved space height of the main body building; the house interlayer cast-in-situ cavity floor adopts light steel beams; the compounded lower flange thin slab is directly compounded by cement mortar and the bottom surface of the hollow ribbed steel mesh; the thickness of the lower flange thin slab is smaller than or equal to 30mm; the hollow ribbed steel mesh comprises a hollow mesh, a floor end mesh and a support mesh; the thickness of the interlayer cast-in-situ cavity floor is smaller than or equal to 250mm. Through the house interlayer cast-in-situ cavity floor, the defect that any filling body cannot act and stress with the floor of the existing cavity floor hole formation technique is overcome; the potential safety hazard of the quality caused by non-uniform house interlayer standard is reduced; the interlayer durability co-exists with the building main body.

The invention discloses a homogeneous non-combustible polyurethane foam heat insulating material and a preparation method thereof. The heat insulating material is prepared by reacting the following raw materials in parts by weight: 6~20 parts of polyurethane rigid foaming material, 4~20 parts of flame retardant and 60~90 parts of inorganic filler, wherein the loose packing density of the inorganicfiller is 1.0~2.0 g / cm<3>. The heat insulating material prepared by the invention has overall density between 120 and 800 kg / m<3>, compressive strength being greater than and equal to 0.10 MPa, highmechanical strength, good durability, total heat value being smaller than and equal to 3.0 MJ / kg, combustion growth rate index being smaller than and equal to 120 W / s and 600 s total heat release ratebeing smaller than and equal to 7.5 MJ, and belongs to A2 grade non-combustible material, and has high fire-proofing safety and simple preparation process, and can realize industrial production.

A compounded latex retardant for preventing coal spontaneous combustion belongs to the technical field of retardants, and comprises the following components by weight ratio: 20 to 80 polymer emulsion, 10 to 90 organic modified clay, and 0.5 to 60 retardant, as well as 1 to 50 dispersant in a concentration of 0.1 to 10wt%. The preparation method comprises the following steps: adding the clay into silane coupling agent solution; performing ultrasonic or stirring dispersion by 30mins; dissolving the dispersant into water of a certain weight ratio, and stirring under 20 to 90 DEG C to get a dispersant solution in a concentration of 0.1 to 10wt%; and adding the organic modified clay and the prepared dispersant solution into the polymer emulsion, fully stirring, adding the retardant, and stirring to achieve uniform concentration. The retardant provided by the invention can not corrode metal equipment during use, harmful gas the wastes can not be generated, no pollution is caused to coal mine environment, and adverse effects and side effects to human body are prevented. Therefore, the retardant is environmental-friendly.

The invention relates to an inorganic fire-resistant foam filling material for a door core board. The filling material is mainly prepared by foaming slurry by a foaming agent, wherein the slurry comprises the following components in part by mass: 15 to 25 parts of anhydrous magnesium chloride, 5 to 15 parts of magnesium sulfate, 0.5 to 0.8 parts of carbon fibre, 0.2 to 0.3 parts of fire-resistant bamboo stick, 5 to 10 parts of kaoline, 3 to 6 parts of soot, 45 to 55 parts of light magnesium oxide, 1.5 to 2.5 parts of closed-cell perlite and 25 to 35 parts of water; and the foaming agent comprises the following raw materials in part by mass: 1.5 to 2.5 parts of animal protein foaming agent, 1 to 2 parts of K12 foaming agent and 25 to 30 parts of water. The frame material in the foam material of the invention has the characteristics of uniform distribution, high foaming efficiency, stable foaming structure, dense holes and good sound insulation effect; and the foamed material has the characteristics of high fire-resistance rating, strong fire resistance without toxicity or side effect, and safe use, and is worthy of popularizing and using.

A nano-class composite wooden material for plate, tube, or section is proportionally prepared from laminar silicate, high-molecular resin, natural plant fibers, inorganic filler, and chemical assistant through proportional mixing, and extruding out or injection moudling. It is possible to granulate before it is shaped.

The method of firing a paintball marker uses a grip frame 21 replaces an existing grip frame 1 on a paintball marker in order to convert said paintball marker from a mechanically operated paintball marker into an electro-pneumatic paintball marker. The electronic grip frame 21 utilises an optical sensor in order to detect the operation of a trigger 29 and a second optical sensor to detect the presence of objects within the breech of the paintball marker. Electrical signals from these sensors are taken to an electronic circuit board 24, which controls the operation of two solenoids (one shown 26) in order to fire and re-cock the paintball marker. A user interface comprising pushbuttons 12, 13, 14 and a multi-character display 16, allows the user to define how the grip frame 21 functions.

A fire resistant roofing tile which utilizes economical materials and is formed using an efficient manufacturing technique. The tile has components shaped to prevent fire spread significantly enough to achieve a Class A fire retardation rating. Recycled materials are used in a compression molding process for commercial appeal and benefit to the ecology.

The invention relates to a novel multi-purpose fireproof composite heat-insulation plate comprising a fireproof composite heat-insulation plate body, a fastener and a heat storage substrate plate or a surface-layer veneer plate, wherein the fireproof composite heat-insulation plate body sequentially is formed by sequentially compounding a protective layer, a composite heat-insulation plate or a heat-insulation plate and a fireproof antiflaming reflecting layer or a reflecting layer from bottom to top; an underfloor heating pipe groove is arranged at the upper end of the composite heat-insulation plate or the heat-insulation plate; and the heat storage substrate plate or the surface-layer veneer plate and a supporting base in the composite heat-insulation plate are anchored on the fireproof composite heat-insulation plate body and an underfloor heating pipeline by using the fastener and a bolt or using the bolt directly. The novel multi-purpose fireproof composite heat-insulation plate is suitable for dry-type or wet-method low-temperature radiation heating of floors of various structural forms including steel structures and the like and inner and outer walls and roof heat insulation, improves the fireproof property of the composite heat-insulation plate, ensures that the composite heat-insulation plate can meet the new fireproof requirement and ensures the fire safety of building heat-insulation materials, and has the advantages of simplicity and convenience for installation, lower cost, economy and practicability, broad application and better decoration effect.

An inkjet printhead comprising a plurality of firing cells, each adapted to generate ink droplet, said firing cells being arranged to form a plurality of matrices; a control circuit for selectively activating said firing cells; said control circuit comprising: a first memory register for storing main printing data defining which firing cells have to be activated in a first printing operation; a second memory register for storing auxiliary printing data defining which firing cells have to be activated in a second printing operation; a processing unit operatively associated with said first and second memory registers for transferring said auxiliary printing data into said first memory register, thereby defining which firing cells have to be activated in said second printing operation; a firing unit for sending to said matrices a single firing signal for each printing operation. Also disclosed is a method of inkjet printing.

The invention discloses a back-contact solar cell double-glass assembly and a manufacturing method thereof. The back-contact solar cell double-glass assembly comprises a first glass layer, a metal conducting circuit core board layer, a sealing insulating isolation material layer, a conducting medium connecting point layer, a back-contact battery cell layer, a packaging material layer and a second glass layer which are laminated together from bottom to top in sequence. According to the back-contact solar cell double-glass assembly and the manufacturing method thereof provided by the invention, the back-contact solar cell double-glass assembly is easy for industrialization, is low in manufacturing cost, high in yield and high in weather resistance, and has good economic and social benefits.

The invention discloses an inorganic fireproof heat insulation board and a preparation method thereof. The inorganic fireproof heat insulation board is characterized by including a hollow ceramic bead surface layer, a glass fiber grid cloth layer, an expanded perlite composite layer, a glass fiber grid cloth layer and a hollow ceramic bead bottom layer from top to bottom; potholes are arranged on the hollow ceramic bead layer, and grooves are arranged on the hollow ceramic bead bottom layer; non-woven cloth layers are arranged respectively on the hollow ceramic bead surface layer as well as the bottom layer; further, the hollow ceramic bead surface layer and the hollow ceramic bead bottom layer are made of hollow ceramic bead slurry, and the expanded perlite composite layer is made of expanded perlite composite layer slurry. The preparation method includes the following steps: preparing the hollow ceramic bead bottom layer; spreading the glass fiber grid cloth; preparing the expanded perlite composite layer; spreading the glass fiber grid cloth; preparing the hollow ceramic bead surface layer; compacting for formation; and demoulding and solidifying. The inorganic fireproof heat insulation board has the advantages of excellent heat insulation performance, low thermal conductivity, fire resistance and high fireproofing grade, environmental protection and the like; further, the integral compression strength is greatly improved.

Provided are a heat-insulating fireproof material based on phenolic aldehyde hollow microspheres and a preparation method thereof. The heat-insulating fireproof material comprises, by weight ratio, 45-60 wt% of liquid thermosetting phenol resin, 5-20 wt% of phenolic aldehyde hollow microspheres, 5-20 wt% of light filling and 5-15 wt% of flame retardant. The sum of mass percents of all the ingredients is 100 wt%, wherein the phenolic aldehyde hollow microspheres are spherical blind hole phenolic aldehyde hollow microspheres with a diameter of 0.1-500 um and a stacking density of 50-200 kg / m<3>. The invention further comprises the method for preparing the heat-insulating fireproof material based on the phenolic aldehyde hollow microspheres. The product has the advantages that the material is large in foam intensity, good in toughness and low in electrical conductivity, foam holes are uniform, the residual acidity is small and even neutral, and the material is green, environmentally friendly and high in fireproof grade. The preparation forming process is simple.

The present invention is an instrument for the rapid firing of a self-loading firearm in a manner which was not previously possible. Some exemplary embodiments of the present invention comprise a fire control group for firearms essentially conforming to semi-automatic fire control groups as known to the art with the addition of novel features, as described herein, which temporarily transfer hammer spring force to the trigger after the firearm has fired live ammunition, resulting in the urging of the trigger to its reset position by hammer spring force. This temporary use of hammer spring force to urge the trigger to its reset position enables more controllable rapid firing of the firearm and other attributes.

A gatling gun style projectile launcher comprising an assembly of rotating, pressurized-air driven guns. A loader assembly mounted on the gun assembly rotates synchronously through mating of drive gears with the assembly of guns. The loader applies centrifugal force to the paintballs within, urging them into loader tubes positioned in the wall of the loader. Synchronous timing gears align the rotating loader tubes with cognate breech openings in the guns, thereby transferring paintballs into the firing positions from which the paintballs are launched.

A firing apparatus (1.0) for a projectile-firing weapon of the type comprising a barrel (8) having a bore therein, the firing apparatus comprising a breech assembly (2.0) adapted to be secured to the barrel (8), a firing mechanism (5.0) adapted to initiate firing of the projectile from the bore, and a valve means (4.0)adapted to allow air within the bore, between the projectile and the firing mechanism (5.0), to be expelled from the bore during loading of the projectile through the bore.

The invention provides internal and external wall fireproof insulating plates, and particularly relates to a vitrified micro bubble composite rock wool fireproof insulating plate and a manufacturing method thereof. In the vitrified micro bubble composite rock wool fireproof insulating plate, a rock wool plate is used as a base layer; a vitrified micro bubble layer, an alkaline-resistance mesh cloth layer, a vitrified micro bubble surface layer and a vitrified micro bubble bottom layer are solidified on the outer surface of the base layer; a plurality of laminar structures are solidified into a whole; and a groove is formed on the surface of the vitrified micro bubble bottom layer. The preparation method comprises the following steps: preparing vitrified micro bubble insulating slurry, and applying a layer of interface mortar on the upper surface, the lower surface and the periphery of a rock wool plate; uniformly applying the vitrified micro bubble slurry on the upper surface and the lower surface of the rock wool plate to form an upper vitrified micro bubble bottom layer and a lower vitrified micro bubble bottom layer; respectively bonding and paving two alkaline-resistance mesh clothes on the applied upper and lower vitrified micro bubble bottom layers, and sewing the upper and lower vitrified micro bubble bottom layers together; applying hydrophobic vitrified micro bubble mortar on the alkaline-resistance mesh cloths once again to form an upper vitrified micro bubble surface layer and a lower vitrified micro bubble surface layer; and forming a slot on the lower vitrified micro bubble surface layer. The vitrified micro bubble composite rock wool fireproof insulating plate is used for external wall insulation and fireproofing, can achieve the A-level fireproof requirement, and accords with high-rise building insulation and fireproof standards in China.

The invention provides compound enhanced waterproof and fireproof heat-insulating board slurry which is prepared through the following steps of: firstly, agitating raw materials comprising 650-800 kg of silicate cement, 160-250 kg of fly ash, 45-65 kg of saltpeter ash, 12-18 kg of re-dispersed latex powder, 1-3 kg of polypropylene fiber with the size of 6-8 mm, 2.5-3.5 kg of naphthalene-based superplasticizer, 1.5-2.5 kg of methyl cellulose ether and the like into uniformly-mixed dry powder; and uniformly agitating 140-200 kg of the dry powder with 10-15 kg of B1-grade inflaming retarding EPS (Expanded Polystyrene) grains and 100-150 kg of water to prepare the slurry. The weight contents of the B1-grade inflaming retarding EPS grains are as follows: the content of grains with the size of phi2 mm is 10-20%, the content of grains with the size of phi3 mm is 10-20%, the content of grains with the size of phi4 mm is 30-40% and the content of grains with the size of phi5 mm is 30-40%. A heat-insulating board prepared from the compound enhanced waterproof and fireproof heat-insulating board slurry disclosed by the invention has the characteristics of low heat conduction rate, low water absorption, A2-grade non-combustible and fireproof performance and the like.

The invention discloses an inorganic sandwich composite external thermal insulation system and a construction technique thereof. The inorganic sandwich composite external thermal insulation system comprises a foundation wall, wherein the border periphery of the foundation wall is orderly provided with an inorganic light-weight aggregate thermal insulation mortar bonding layer, an inorganic fiber cotton heated board layer and an inorganic light-weight aggregate thermal insulation mortar bonding and leveling layer, and an anti-cracking protective layer and a coating facing layer are orderly arranged outside the inorganic light-weight aggregate thermal insulation mortar bonding and leveling layer. The construction technique comprises the following steps: after wall face base layer treatment and border mortar treatment, sticking inorganic fiber cot ton heated boards with adhesive inorganic light-weight aggregate thermal insulation slurry, leveling the slurry surface layer by attaching inorganic light-weight aggregate thermal insulation mortar, and finally, constructing the anti-cracking protective layer and the coating facing layer. The fire-protection rating of the inorganic sandwich composite external thermal insulation system achieves non-combustible type; and the invention has the advantages of weather fastness and air permeability.

The invention relates to a device for delaying the gas action operated firearm. The device includes a gas chamber and an outlet, wherein the outlet is in fluid communication with the action tube of the firearm. The device has a port in fluid communication between the gas chamber and the barrel and a one-way check valve in the port. A gas release valve is included and is disposed on the container and in fluid communication with the gas chamber and the outlet. The device further includes linkage attached to the gas release valve and in mechanical communication with the bolt, such that when the gas release valve is in the closed position, gas is retained in the gas chamber and the linkage blocks the bolt from moving, and when the gas release valve is in the open position the linkage unblocks the bolt permitting normal gas action of the firearm.

The invention provides a cavity floor with a hollow ribbed steel mesh. The cavity floor with the hollow ribbed steel mesh comprises a main beam, a ribbed beam, an upper flange slab, a lower flange slab, a column-beam structure platform and a hollow ribbed steel mesh, wherein the column-beam structure platform is a hidden platform or an apparent platform or a conical platform; a steel mesh body with the hollow ribbed steel mesh is cast in situ in concrete of the lower flange slab; the hollow ribbed steel mesh comprises a hollow mesh, a hollow end mesh and a support mesh; the hollow mesh, the hollow end mesh and the support mesh are made of pure metal materials; the hollow mesh forms the periphery of the hollow ribbed steel mesh; the steel mesh body comprises steel slab expansion mesh holes, a V-shaped rib and a steering connection sheet; the expansion mesh holes on two sides of the steering connection sheet are located in the same direction; the support mesh is a steel mesh body or a steel bar mesh body. Through the cavity floor with the hollow ribbed steel mesh, the cavity floor is cast by the hollow ribbed steel mesh; concrete mortar directly wraps the hollow ribbed steel mesh, participates in stressing and resisting crack together; the defect of the existing hollow floor technology can be effectively solved.

A building element (1) comprising an outer sheath and an inner core, the sheath being formed of a material having a greater tensile strength than compressive strength and the core having a greater compressive strength than tensile strength; wherein the outer sheath is longitudinally extending and has a first face (7) and a second face (8) which are spaced apart, first (9) and second (21) edges and a first and second end; wherein the first face (7) and the second face (8) are joined at the first (9) and second (21) edges to form the outer sheath as a continuous body, and wherein the first edge (9) and the second edge (21) are so shaped that the first edge (9) of one such building element (1) is adapted to locate in the second edge (21) of another such building element (1).

Gun ammunition having a propellant is provided. The ammunition being for loading from a closed ammunition hold into the loading chamber of a gun. The ammunition has a tail region and an oxygen-releasing substance arranged in the tail region. The oxygen-releasing substance is for releasing oxygen after ignition of the propellant in the loading chamber of the gun, the release of the oxygen being for oxidizing carbon monoxide that forms during the firing in the loading chamber into carbon dioxide.