57results about How to "Fire protection" patented technology

A fire retardant body comprises a polymeric matrix and a non-halogenated fire retardant component that is an intumescent material. The fire retardant component is present in the fire retardant body in an amount from about 55% to about 95% of the body by weight. The body preferably has a thickness of at least about 3 mm in each dimension. Methods of using the fire retardant body for protecting a substrate from fire damage are also provided.

A fire retardant delivery system for use with a source of carrier for protection from wildfire is provided. The system includes a retardant tank for storing a fire retardant. The retardant tank is in fluid communication with the source of carrier. A metering valve is constructed and arranged to meter a flow of fire retardant injected into the carrier discharged from the source of carrier to maintain a predetermined proportion of fire retardant to carrier, thereby creating a fire retardant and carrier mixture. At least one distribution nozzle is configured to deliver the fire retardant and carrier mixture to a desired area.

A rescue appliance for evacuating physically-compromised persons is disclosed. A rescue appliance includes a platform configured to support a prone evacuee, a set of wheels coupled with the platform to support the platform relative to a floor surface, and a protection assembly coupled with the platform. The protection assembly is configurable to surround the prone evacuee to protect the evacuee from a fire. The protection assembly can be configured to encase the prone evacuee. The rescue appliance can be configured to be sufficiently buoyant to support an evacuee on water to allow evacuation in a flooding emergency. Two or more rescue appliances can be coupled together to form a train so that multiple persons can be evacuated simultaneously.

The invention discloses a novel house capable of being fast disassembled and assembled and an assembling method thereof. The novel house comprises a wall. The lower portion of the wall is connected with ground ring beam angle iron. The upper portion of the wall is connected with top ring beam angle iron. One side of the top ring beam angle iron is connected with a flat roof. A waterproof layer is disposed on the flat roof. The upper portion of one side of the top ring beam angle iron is connected with a house frame. An inclined roof is disposed on the house frame. A waterproof layer covers the inclined roof. The wall, the flat roof and the inclined roof are formed by a plurality of wall module units which are connected in a threaded manner. The ground ring beam angle iron and the top ring beam angle iron are of an angle iron structure. The wall module units are connected with the ground ring beam angle iron and the top ring beam angle iron through threads. The wall module units are spliced to form a door opening and window openings. The wall module units above and below the door opening and the window openings are respectively connected with the wall module units on the outer sides of the door opening and the window openings through angle fixing angle iron in a threaded and matched manner. The novel house is convenient to assemble and disassemble, fast in construction and recyclable.

The invention relates to the technical field of building materials, in particular to an integrated plate integrating the functions of heat preservation, fire prevention and decoration. The integrated plate comprises a polyurethane layer, a foam ceramic layer and a decoration layer. The polyurethane layer and the decoration layer are arranged on the back face and the front face of the foam ceramic layer respectively. The polyurethane layer is made of hard polyurethane. The decoration layer is a glaze layer. An aerogel coating layer can further be arranged between the foam ceramic layer and the decoration layer. The decoration layer can aim at protecting finishing coat or comprises a primer layer and a middle paint layer and protects a finishing coat layer or only comprises the primer layer and protects the finishing coat layer.

A device is easily connected to a utility panel of a building and includes signals to indicate improper operation in the electrical system of the building. The device further includes a system for dispersing an extinguishing agent into the utility panel box in the event a power surge is of sufficient magnitude.

An aircraft propulsion assembly includes an engine, a nacelle surrounding the engine, and a system for extinguishing a fire that may occur in the engine and/or in the nacelle. The extinguishing system has means for supplying an extinguishant to at least one extinguishant distribution pipe which opens into a cavity of the engine and/or a cavity of the nacelle. The extinguishing system also includes means for supplying said at least one pipe with air so as to ventilate the or each cavity.

The invention relates to the technical field of building materials, in particular to a making method of an integrated board which integrates heat-insulating, fireproof and decorating functions. The making method includes following steps: pouring polyurethane, namely placing a large-specification foamed ceramic board forming a foamed ceramic layer on a conveying track on a flow line, and pouring polyurethane on the back of the foamed ceramic board to form a polyurethane layer; laminating and solidifying, namely laminating and solidifying the polyurethane layer formed by pouring and the foamed ceramic layer; forming a decorating layer, namely forming the decorating layer on the front of the foamed ceramic board. The making method is simple in process, supportive of large-scale production and capable of flexibly meeting requirements of different specifications.

A pushing-type inward opened safety door is characterized by comprising an inward opened door unit, an outward rotating door frame installed on the periphery of the inward opened door unit, a fixed door frame fixed to a wall, inner door hinges, spring hinges, an inner door lock and a safety lock. The inward opened door unit is opened in the indoor direction, the outward rotating door frame is opened in the outdoor direction, the inward opened door unit and the outward rotating door frame are hinged through the inner door hinges, the outward rotating door frame and the fixed door frame are hinged through the spring hinges, the inner door lock is installed on the inward opened door unit, and the safety lock is installed on an outward rotating door frame post or opening side fixed door frame post; in the closed state of the outward rotating door frame, an included angle ranging from 5 to 10 degrees is formed in the fitting position of the outward rotating door frame and the fixed door frame in the outdoor direction; the safety lock comprises a safety lock buckler, a safety lock pin, an upward pulling lock cylinder, a downward pulling lock cylinder, a third locking groove and a fourth locking groove. The pushing-type inward opened safety door replaces of a classroom or office inward opened door effectively, the requirements of fire protection rules are met, usage is simple and facilitated, and the appearance is practical and attractive.

A connection utilizing a joist hanger to hang a joist or beam from a wood structural support member such as a top plate or header in cooperation with a first plurality of fasteners such as screws and one or more substantially vertical fire-resistant panels such as drywall.

The invention discloses a core-insertion blade lock, which comprises a lock body, one side edge of the lock body is provided with a panel, the panel is provided with a latch bolt, the lock body is internally articulated with a rotating mechanism and the side face of the lock body is provided with a key hole; and the core-insertion blade lock also comprises a blade structure, a dead bolt, a heaven and earth lock hook, a top plate and a button, wherein the blade structure is arranged inside the lock body and positioned beside the key hole and is in transmission connection with a latch bolt; the dead bolt is arranged at the position of the panel, and the rear part of the dead bolt is arranged inside the lock body and positioned beside the key hole; the heaven and earth lock hook is arranged inside the lock body, the middle part of the heaven and earth lock hook is provided with an inclined chute used for accommodating a guide post extending out from the dead bolt so as to convert the transverse motion of the dead bolt into the vertical motion of the heaven and earth lock hook; the top plate is hinged inside the lock body and in transmission connection with a rotation mechanism, and the top plate is provided with a notch adjacent to the side edge of the lock body; and the middle part of the button is articulated with a door and the rear part of the button is positioned at the outer side of the notch. By integrating three types of structures and adopting a blade as a lock cylinder structure, the invention has a good anti-theft effect and a good use effect and is suitable to being installed and used on doors of various occasions.

The invention discloses a power grid adaptability testing device which comprises a test device shell, a wiring terminal, a fireproof felt, a rubber column, an insulation base and a movable pulley, wherein the top end of the test device shell is in threaded connection with a lifting ring, and the inner side of the test device shell is connected with an installation plate through an insulation block, the lower end of the wiring terminal is in threaded connection with the installation hole, the installation hole is formed in the installation groove, and the fireproof felt is located between the test device shell and the installation plate, the rubber column is located between the lower portion of the outer side of the shell of the test device and the inner side surface of the damping device,and a damping spring is arranged between the lower end surface of the test device shell and the inner bottom surface of the damping device, the insulation base is arranged below the interior of the test device shell, and the movable pulley is located at the lower end of the damping device. The power grid adaptability testing device is characterized in that the fireproof felt is arranged between the installation plate and the side wall of the test device shell, so that the fireproof protection of the equipment inside the test device shell can be achieved.

The invention discloses a belt sander and relates to the field of industrial machinery. The belt sander comprises a support, a base, a motor, a sanding belt wheel, a driven wheel, a sanding belt and a sanding belt shell, wherein the base is connected with the support, the motor is arranged on the base, the sanding belt wheel and the motor are connected through a driving shaft, the sanding belt wheel is connected with the driven wheel through the sanding belt shell, and the support is provided with a clamp comprising a clamp support and a clamping part. The clamping part is connected with the clamp support through a rotary shaft, and the clamp support is composed of two hydraulic rods. The motor is provided with an ash damper 2-3mm in thickness, the clamp vertically moves through the hydraulic rods and is rotatable through a rotary shaft, parts can be conveniently polished from various angles, polishing depth of the parts can be adjusted, the support is provided with an ash damping plate capable of stopping sparks generated during polishing from splashing, and fire risk is prevented.

Disclosed is an unhooking safe device of heat treatment quenching, which is installed between a hook of a trolley and a quenching work-piece. The invention doesn't employ electric power, but employs a safe device of a mechanical locking structure which is formed by a safe quenching hook body, a safe quenching hook main body, a load bearing steel ball, a locking coat, a tension bolt, a connecting bar, a safe tommy bar, a crane trolley combined body, a real-time hook force position of labors and a quenching heavy object hook, wherein the tension bolt, the connecting bar and the safe tommy bar are arranged on the locking coat. When the heat treatment quenching trolley swings the work-piece to a quenching bath and once accidents happen with no electric power which can be used (particularly where near the quenching liquid is on fire), two operators hold iron hooks to respectively hook the real-time hook force location of the device, simultaneously pull the real-time hook force position emphatically, then, the locking coat of the device moves upwards under the leverage, the load bearing steel ball moves outwards under the action of the lateral component force of the gravity of the work-piece, and the safe quenching hook body and the quenching work-piece of the device immediately fast unhook to enter the quenching liquid to avoid fire risk.

A method and system for protecting an object from fire are provided. The system comprises a composition including water, a solid particulate material, and a foaming agent, the composition being aeratable to form an aerated slurry, and an apparatus to aerate the composition to form the aerated slurry and to apply the aerated slurry to the object. Upon application, the aerated slurry forms a thermally-insulating layer adapted to substantially cover a surface of the object, thereby protecting the object from fire damage. The thermally-insulating layer is further adapted to dry on the surface of the object, and whereby the thermally-insulating layer is removable from the surface of the object by application of water.

A transient overvoltage protection system to be positioned in parallel with an equipment item to be protected, has at least three lines and includes three conductive branches intended to be connected to the three lines. The first and second conductive branches are equipped with first and second voltage-sensitive protection elements and are able to rise in temperature when the voltage between its terminals is higher than a voltage threshold. A thermally sensitive disconnection device comprising at least one thermofusible element in thermal contact with at least one of the first and second protection elements, is arranged so as to keep the three branches in a connected position, the thermally sensitive disconnection device having an elastic return device exerting a force tending to bring the three conductive branches to a disconnected position.

The invention discloses a coal feeder operation starting method and system for preventing high temperature of coal stored in a coal bunker. The method comprises the steps that (1) the system judges whether the total number of coal feeders in operation is larger than a system set value or not; (2) if the total number of the coal feeders in operation is not larger than the system set value, corresponding shutdown coal feeders are started according to starting conditions of the coal feeders; (3) whether accumulated operation of the coal feeders meets the system set zero clearing time or not afterthe coal feeders are started is judged; and (4) the coal feeders started to be in operation are shut down according to shutdown conditions of the coal feeder . The coal feeder operation starting system for preventing the high temperature of the coal stored in the coal bunker comprises a coal feeder fault state judgment module, a coal feeder cumulative shutdown time judgment module, a coal feederstarting and shutdown judgment module, a coal quantity judgment module, a bunker position judgment module and a coal feeder cumulative operating time judgment module. The coal feeder operation starting method and system effectively solve fire danger caused by long-time shutdown of the coal feeders.

The invention concerns a device for protection against transitory overvoltages, comprising: a varistor; a discharge tube; a thermofusible soldering securing a first electrode of the discharge tube and a first electrode of the varistor, the thermofusible soldering being a conductor of electricity and being able to melt beyond a temperature threshold when the varistor or the discharge tube heats up; the second electrode of the varistor being designed to be connected to a first electrical line and the second electrode of the discharge tube being designed to be connected to a second electrical line; a restoring element exerting a restoring force tending to move the first electrode of the varistor away from the first electrode of the discharge tube in order to allow a separation between the first electrode of the varistor and the first electrode of the discharge tube during a melting of the thermofusible soldering.