8 results about "Firestop" patented technology

A device that is an improved rapid expansion fire stop and system for wall openings. The fire stop is made of a backer rod comprised of a durable foam material in a pre-determined size and cross-sectional configuration, the backer rod has a slot that accepts an intumescent strip with expansion characteristics of expanding up to thirty-three (33) times its size and volume when exposed to high heat or flame. The firestop is placed into the wall opening or crack of the wall system and then the wall system is completed with an architectural sealant across the remaining crack. The improved expanding rapid expansion fire stop serves to prevent fire, smoke and heat by expanding and fully sealing the wall opening and crack from any intrusion or passage of the heat, smoke or flame through the opening.

A firestop for pipes and conduits comprises a metal housing in which fire protection packs are attached, with a protective rail on the front face.

Cast in place firestop device for installation on corrugated metal decking, comprising an insert, which comprises a flange, a first web for being inserted into a rib of the corrugated metal decking, wherein the first web projects from the flange, and wherein the first web has a first web distal end, and a second web for being inserted into the rib of the corrugated metal decking, wherein the second web projects from the flange, and wherein the second web has a second web distal end, wherein a mouth is formed between the first web distal end and the second web distal end, and a spring-loaded shutter mechanism, wherein the spring-loaded shutter mechanism comprises a first shutter flap pivotably connected to the first web, a second shutter flap pivotably connected to the second web, and at least one thermal fuse for releasing at least one of the first shutter flap or the second shutter flap in case of heat.

An apparatus for firestopping a cable tray having a cable load and extending through a partition. A housing of the apparatus is constructed to envelope a portion of the cable tray within the partition and defines an axial passageway between open front and back sides of the housing through which the cable tray and cable load extend. Firestop pads are arranged along the inside of the housing. An actuator is connected to a top firestop pad and is operable to move the top firestop pad between a first position disengaged from the cable load, which allows the cable load to be altered without interference from the top firestop pad, and a second position engaged with the cable load, which firestops the passageway surrounding the cable load.

The invention relates to the technical field of photovoltaic cable or wire installation, basic electrical elements, connecting devices and adhesives, in particular to a photovoltaic cable fire extinguishing protector, system, material and method for an MC4 connector. The protector comprises a hollow shell, a perfluorohexanone microcapsule patch arranged towards a heating area, a composite seal, a limiting structure and a high-viscosity heat-conducting interface material, and a closed cavity is formed after the hollow shell, the perfluorohexanone microcapsule patch, the composite seal, the limiting structure and the high-viscosity heat-conducting interface material are assembled. The equivalent heat transfer gap is limited, the equivalent ventilation rate is checked through a concentration-time curve, the patch explosive load is determined according to calculation, second-level establishment is achieved, and the volume fraction not lower than the fire extinguishing threshold value is maintained within the set time. The device does not need external energy supply, has the functions of mechanical protection, rapid fire extinguishing and after-combustion inhibition, and is suitable for various outdoor photovoltaic scenes.

The invention relates to a fire-fighting plugging device for an electrical equipment shell, and belongs to the technical field of electrical equipment shell parts. The device is installed in a through hole of an electric equipment shell and comprises a center channel used for a cable bundle to penetrate through and further comprises an annular piston rod which is coaxially arranged in a mechanism space on the periphery of the center channel. The wall surface locking mechanism comprises at least one wall surface locking block capable of moving in the radial direction; the cable bundle locking mechanism comprises at least one cable bundle locking block capable of moving in the radial direction; the first conversion mechanism is used for axially displacing the annular piston rod; and the second conversion mechanism is arranged to be used for converting the axial displacement of the annular piston rod into the radial inward movement of the cable bundle locking block. In the initial stage of a fire, a fire-fighting plugging body which is firmly anchored with an equipment shell and tightly attached to an internal cable bundle is actively formed.

The invention relates to a metallic housing (5) for a firestop through penetration device (4) The housing (5) is preformed to be installed in a break-through (3) of a firewall (2) to form a side wall of an axial channel and configured to receive penetrants (10); and has one or more of the following constructional features reducing thermal conduction between its opposite openings (6, 7): - a radial thickness of less than 2 mm; and / or - stainless steel, chrome steel, and / or other steel alloys with chrome, nickel, molybdenum, titanium, and / or tungsten used as its material(s); and / or - a corrugated longitudinal profile, increasing the length of heat conduction paths connecting the opposite openings (6, 7); and / or - a plurality of slots (17, 17a, 17b) extending at least partly in a circumferential direction and being successively arranged in the axial direction with offsets, increasing the length of heat conduction paths connecting the opposite openings (6, 7).

A firestop for one or more service components (fluid pipes, data and electrical cables, and HVAC ducts) the firestop comprising: a housing having: a first tubular part 12 that defines a first longitud