375 results about "Fire sprinkler" patented technology

Systems and methods are provided that allow for the continued operation of a fire sprinkler or standpipe system after the failure of an air release valve, wherein connected to the air release valve is a system that collects and contains fire extinguishing liquid leaked from an air release valve, as well as being able to detect and stop such leaks that could not be contained by the system.

Methods and systems for providing cleaning and providing barrier coatings to interior wall surfaces of small diameter metal and composite piping systems in buildings. An entire piping system can be cleaned in one single pass by dry particulates forced by air throughout the building piping system by an external generator, and the entire piping system can be coated in one single pass by a machine also connected exterior to the piping system. Small diameter pipes can be protected by the effects of water corrosion, erosion and electrolysis, extending the life of small diameter piping systems such as copper, steel, lead, brass, cast iron piping and piping systems made of composite materials. The invention meets the National Sanitation Foundation standard for products and services that come into contact with potable water, and the American Water Works Association. Coatings can be applied to pipes having diameters of approximately ⅜″ up to approximately 6″ so that entire piping systems such as potable water lines, natural gas lines, HVAC piping systems, drain lines, and fire sprinkler systems in buildings such as single-family homes to smaller walk-up style apartments to multi-floor concrete high-rise hotel / resort facilities and office towers, as well as high-rise apartment and condominium buildings and schools, can be cleaned and coated to pipes within existing walls. The barrier coating forms an approximately 4 mils or greater covering to the inside of pipes. Entire buildings can return to service within approximately 24 to approximately 96 hours depending on the size of the building piping system.

An automatic fire sprinkler having a variable orifice, the sprinkler having a variable orifice associated with the automatic fire sprinkler, and wherein the orifice is responsive to the water inlet pressure of the sprinkler.

A fire sprinkler of the preferred embodiments includes a frame, a trigger, and a deflector. The frame defines a duct to exhaust the flow of a fire suppressing or extinguishing substance, and includes a fastener to fasten the frame to a supply line. The trigger blocks the flow of the fire suppressing or extinguishing substance through the duct during a first mode, and permits the flow of the fire suppressing or extinguishing substance during a second mode. The deflector redirects the flow of the fire suppressing or extinguishing substance into a coverage area. The deflector also at least partially shields the trigger from the dispersal of a fire suppressing or extinguishing substance from an adjacent fire sprinkler and prevents a failure of the trigger.