Class / Patent application number | Description | Number of patent applications / Date published |
169019000 | AUTOMATIC VALVES | 20 |
20090095493 | FRANGIBLE SHAPE MEMORY ALLOY FIRE SPRINKLER VALVE ACTUATOR - A temperature-activated valve for a conventional fire sprinkler utilizing a hyperelastic single-crystal shape memory alloy is described. The shape-memory element expands as it is heated, forcing a bolt to break, thereby opening the sprinkler valve. The devices described are less susceptible to accidental breakage than conventional actuators, and have fewer moving parts. Transition temperature of the shape memory alloy can be tuned to a narrow range. | 04-16-2009 |
20090314501 | Frost-Proof Container for Extinguishing Fluid - Closure device | 12-24-2009 |
20100006304 | SPRINKLER VALVE WITH ACTIVE ACTUATION - A temperature-activated valve for a conventional fire sprinkler utilizing a hyperelastic single-crystal shape memory alloy is described. The shape-memory element expands as it is heated, forcing a bolt to break, thereby opening the sprinkler valve. The shape memory element typically communicates with the valve so as to force it open. The devices described are less susceptible to accidental breakage than conventional actuators, and have fewer moving parts. Transition temperature of the shape memory alloy can be tuned to a narrow range. | 01-14-2010 |
20100025050 | Frangible Shape Memory Alloy Fire Sprinkler Valve Actuator - A temperature-activated valve for a conventional fire sprinkler utilizing a hyperelastic single-crystal shape memory alloy is described. The shape-memory element expands as it is heated, forcing a bolt to break, thereby opening the sprinkler valve. The devices described are less susceptible to accidental breakage than conventional actuators, and have fewer moving parts. Transition temperature of the shape memory alloy can be tuned to a narrow range. | 02-04-2010 |
20100059234 | AUTOMATIC FLOW RESTRICTOR FOR FIREFIGHTING APPARATUS - An automatic flow restrictor includes a movement sensor that detects undesired movement of a firefighting apparatus relative to a support surface and automatically reduces the flow of fluid through the apparatus to thereby reduce reaction forces acting upon the apparatus. The sensor may be a slidable member or an actuatable lever, for example, that detects movement of the apparatus along or away from a support surface, and actuates an adjuster to restrict the flow of fluid until the forces are balanced and the apparatus stops moving relative to the support surface. | 03-11-2010 |
20110061878 | METHODS AND APPARATUS FOR HAZARD CONTROL AND SIGNALING - A hazard control system according to various aspects of the present invention is configured to deliver a control material in response to detection of a hazard and signal a secondary hazard detection system that an event has occurred. In one embodiment, the hazard control system comprises a pressure tube having an internal pressure that is configured to leak in response to exposure to heat. The leak changes the internal pressure and generates a pneumatic signal. A valve may be coupled to the pressure tube and be configured to release the control material from a container is response to the pneumatic signal. A second valve may also be coupled to the pressure tube and be configured to provide a signal to the secondary hazard detection system in response to the pneumatic signal. | 03-17-2011 |
20120103637 | WATER FLOW DETECTION DEVICE - The present invention realizes a new actuated valve type water flow detection device that can be applied to a pipe with a relatively large bore diameter. The water flow detection device A includes a coil spring for urging a detection rod in an opening direction of a valve body. Therefore, while detecting water flow by linking a rotation of the detection rod to a rotation of the valve body when the valve body opens or closes by a differential pressure, the detection rod does not apply a closing load to the valve body that is released. Therefore, even when the rotation of the valve body is small because the water flow in the secondary side is small in a conventional actuated valve type water flow detection device, it is possible to increase an opening angle of the valve body. | 05-03-2012 |
20130062079 | VALVE - A valve for a pressure vessel of an automatic fire extinguishing system comprises a valve housing with a valve output opening for connecting an extinguishing line, a valve input opening for connecting the valve to the pressure vessel, a valve seat arranged between the valve output opening and the valve input opening, a low pressure chamber for connecting a triggering device and a high pressure chamber connectable with the low pressure chamber, wherein arranged in a the valve housing is a closing piston comprising a valve seat seal, which can be moved between a closing piston closed position and a closing piston open position, a pressure control unit in pressure connection with the valve input opening and the low pressure chamber for controlling the low pressure in the low pressure chamber relative to a vessel pressure of the pressure vessel and a control piston which can be moved between a control piston closed position and a control piston open position, wherein the closing piston is arranged in the closing piston closed position with the valve seat seal on the valve seat in a fluid-tight manner so that the valve output opening is sealed relative to the valve input opening, wherein the closing piston is arranged in the closing piston open position spaced apart from the valve seat, so that the valve output opening and the valve input opening are in pressure connection, wherein the control piston in the control piston closed position seals a pressure channel between the high pressure chamber and the low pressure chamber in a fluid-tight manner, and wherein the control piston in the control piston open position releases the pressure channel, so that the high pressure chamber and the low pressure chamber are in pressure connection. | 03-14-2013 |
20130092402 | FIRE EXTINGUISHING BALL - The fire extinguishing ball includes an outer ball cage, an inner ball cage freely rotatable within the outer ball cage about one axis, and an internal fire extinguishing assembly carried by the inner ball cage and freely rotatable therein about a different axis. The internal fire extinguishing assembly includes a hollow ball-shaped body containing compressed gas and fire extinguishing agents. A valve assembly attached to the top of the body permits refilling of the body and dispersion of the contents during operation. The internal fire extinguishing assembly is connected to the inner ball cage so that the valve assembly will be disposed on top when the fire extinguishing ball is at rest. The ball can be tossed or rolled towards fires in difficult to reach areas. Exposure to heat opens the valve in the valve assembly to thereby disperse the contents of the body and extinguish the flames. | 04-18-2013 |
20130098641 | Preaction Dry Pipe Alarm Valve for a Sprinkler Pipework - A preaction dry pipe alarm valve ( | 04-25-2013 |
20130255971 | VALVE FOR A FIRE EXTINGUISHING SYSTEM - A valve for a fire extinguishing system includes a housing, a flow control apparatus, an actuator apparatus, and a manual override apparatus. The flow control apparatus is disposed in a cavity to prevent or permit flow of the fire extinguishing agent from an ingress aperture to an egress aperture of the housing. The flow control apparatus includes a burst disk clamped between the first and second annular faces and an annular spool axially movable along the longitudinal axis relative to the housing. The actuator apparatus includes a bearing sleeve angularly movable around a longitudinal axis relative to the housing and a latch element operably coupling the bearing sleeve and the annular spool. The manual override apparatus includes a cam operably coupled to the bearing sleeve. | 10-03-2013 |
20160023031 | Temperature-Based Fire Detection - A fire detection device and method therefor are able to provide automatic activation so as to extinguish a fire. The fire detection can be rapid and temperature-based. In one embodiment, a heat collector can be provided to enhance thermal responsiveness. Activation of the fire detection device can be electrically induced to release an extinguishing agent at the fire. The activation can be protected such that it is durable and unaffected by vibrations. | 01-28-2016 |
20160195196 | MANUAL RESET HYDRAULIC VALVE LATCH FOR A HYDRAULICALLY CONTROLLED VALVE | 07-07-2016 |
169020000 | Pressure controlled | 7 |
20090178813 | METHODS AND APPARATUS FOR HAZARD CONTROL - A hazard control system according to various aspects of the present invention is configured to deliver a control material in response to detection of a hazard. In one embodiment, the hazard control system comprises a pressure tube having an internal pressure and configured to leak in response to exposure to heat. The leak changes the internal pressure and generates a pneumatic signal. A fire detector may also detect a fire condition associated with fire. A valve may be coupled to the fire detector and the pressure tube. The valve is configured to change the internal pressure and generate the pneumatic signal in response to a signal from the fire detector. The pneumatic signal triggers a delivery system to deliver the control material. | 07-16-2009 |
20100089596 | METHOD AND DEVICE FOR CONTROLLING A FIRE-EXTINGUISHING SYSTEM OF THE HIGH-PRESSURE GAS TYPE - The invention relates to a fire-extinguishing system of the high-pressure gas type, in which the gaseous extinguishing agent is stored under high pressure in at least one high-pressure gas bottle ( | 04-15-2010 |
20100288517 | Pneumatic Flow Control Valve for Fire Suppression Over Pressure Prevention - A controlled pressure release valve includes a valve body having a gas inlet for connection to a gas container and a gas outlet for delivering gas to a protected area. The controlled valve comprises a slidable spool housed in the valve body that is slidable between a first position and a second position. The slidable spool has a first end and a second end. A primary flow passage connects the gas inlet and the gas outlet and increases with lineal movement of the slidable spool. The sliding spool is biased towards the first position by a gas pressure applied by the second chamber and a spring. | 11-18-2010 |
20120152571 | A HIGH PRESSURE GAS DISCHARGE VALVE FOR A FIRE-EXTINGUISHING OR EXPLOSION-PREVENTING SYSTEM - A high pressure gas discharge valve for a fire-extinguishing or explosion-preventing system including: a valve body with a gas inlet channel and a gas outlet channel; a valve seat arranged between the channels; and a triggering chamber; a closing piston which is slidably movable within the valve body and has a first end portion forming a pressure surface in the triggering chamber, a second end portion forming a sealing surface, with which it can be sealingly pressed against the valve seat, and a pressure compensation channel via which the triggering chamber communicates with the inlet channel when the closing piston rests on the valve seat; a triggering port in communication with the triggering chamber, for connecting thereto a low pressure triggering device that is capable of generating a pressure drop in the triggering chamber; and a pressure-reducing valve for reducing a pressure of high pressure gas to a reduced pressure suitable for the low pressure triggering device. | 06-21-2012 |
20120292057 | Fire Suppression Valve Improvements - Disclosed is a fire suppression system, a valve for the system, and a movable valve member for the valve. The system includes a reservoir for a fire suppressant material. The reservoir has an outlet, at least one nozzle from which the suppressant is delivered, and a valve governing passage of the suppressant to the nozzles. The valve includes a movable valve member and first and second valve seats cooperating therewith. The valve member is movable from a first position seated with respect to the first valve seat preventing communication between the reservoir and the nozzles, to a second position seated with respect to the second valve seat permitting suppressant flow from the reservoir to the nozzles and preventing suppressant flow to an actuator operatively associated with the valve to selectively cause movement of the valve member from the first position to the second position. | 11-22-2012 |
20160008645 | DRY PIPE/DELUGE VALVE FOR AUTOMATIC SPRINKLER SYSTEMS | 01-14-2016 |
169022000 | Differential area | 1 |
20130037278 | DIFFERENTIAL DRY PIPE VALVE - A differential dry pipe valve is provided having a body including an inlet chamber having an inlet port, an exit chamber having an exit port, and a gasket flange positioned between the inlet and exit chambers facing the exit port, the inlet and exit ports being substantially aligned. The valve also includes a gasket attached to the gasket flange and an openable cover hingedly attached to the body. The gasket has an inner water lip in fluid communication with the inlet chamber and an outer air lip surrounding the water lip. The spacing between the water lip and air lip varies. The air and water lips are coaxial. The cover is configured to be sealingly engaged with the seal when in a closed position and to be sealingly disengaged in an open position when the pressure in the exit chamber is lower than the pressure in the inlet chamber. When the cover is in the open position, a direction of a path between the inlet and exit ports is substantially unaltered. | 02-14-2013 |