A monitoring and testing system which is designed to automatically seal off the system from its gas supply and monitor internal pressure during that time to perform regulatory testing. The scheduling can be automated and can be done without maintenance personnel having to monitor the time passage and pressure manually. The system may also be designed to monitor operation of the air compressor, or related gas supply device, and evaluate if the operation of the gas supply is operating in a fashion indicative of a larger than desired leak. This effectively allows the system to monitor pressure changes during regular operation and on a somewhat continuous basis.
Systems and methods for the remote testing of a pressure switch, particularly a supervisory switch in a fire sprinkler system. The systems and methods detected a decrease in pressure below a target low threshold and above a modified high threshold where the modified high threshold is moved during testing to allow for testing without need to increase the pressure in the system substantially above a supervisory pressure.
Systems and methods for a solenoid supervisory detection system which can detect the presence or absence of a solenoid plunger within a solenoid coil. These systems can be used to verify correct reassembly of a solenoid valve after it has been disassembled for testing.
A62C 35/68 - Details, e.g. of pipes or valve systems
F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
4.
FORWARD AND BACK SCATTERING SMOKE DETECTOR AND METHOD OF USE
Systems and methods for smoke detection which utilizes two generally identical light sources and single light detector to compare the ratio of forward and backward scattering smoke particles present in a detection area.
Systems and methods for smoke detection which utilizes two generally identical light sources and single light detector to compare the ratio of forward and backward scattering smoke particles present in a detection area.
A gas supply system primarily designed for use with fire sprinkler systems which includes a control system which uses flow demand to automatically determine the mode of operation and switch between providing air and nitrogen. The gas supply system can operate either in standard nitrogen generation mode where nitrogen is supplied to the reservoir tank and/or sprinkler system or in a bypass mode, where sufficient pressure is only obtained by directly supplying air. The gas supply system can provide for improved safety in operation as well as the ability to operate the sprinkler system primarily when filled with nitrogen supervisory gas.
A monitoring and testing system which is designed to automatically seal off the system from its gas supply and monitor internal pressure during that time to perform regulatory testing. The scheduling can be automated and can be done without maintenance personnel having to monitor the time passage and pressure manually. The system may also be designed to monitor operation of the air compressor, or related gas supply device, and evaluate if the operation of the gas supply is operating in a fashion indicative of a larger than desired leak. This effectively allows the system to monitor pressure changes during regular operation and on a somewhat continuous basis.
Systems and methods for a solenoid supervisory detection system which can detect the presence or absence of a solenoid plunger within a solenoid coil. These systems can be used to verify correct reassembly of a solenoid valve after it has been disassembled for testing.
F16K 37/00 - Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
A62C 35/68 - Details, e.g. of pipes or valve systems
F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
9.
Automatic nitrogen fill for a fire sprinkler system
A gas supply system primarily designed for use with fire sprinkler systems which includes a control system which uses flow demand to automatically determine the mode of operation and switch between providing air and nitrogen. The gas supply system can operate either in standard nitrogen generation mode where nitrogen is supplied to the reservoir tank and/or sprinkler system or in a bypass mode, where sufficient pressure is only obtained by directly supplying air. The gas supply system can provide for improved safety in operation as well as the ability to operate the sprinkler system primarily when filled with nitrogen supervisory gas.
A62C 37/50 - Testing or indicating devices for determining the state of readiness of the equipment
F17C 13/00 - Details of vessels or of the filling or discharging of vessels
A62C 35/62 - Pipe-line systems dry, i.e. empty of extinguishing material when not in use
B01D 53/22 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols by diffusion
A gas supply system primarily designed for use with fire sprinkler systems which includes a control system which uses flow demand to automatically determine the mode of operation and switch between providing air and nitrogen. The gas supply system can operate either in standard nitrogen generation mode where nitrogen is supplied to the reservoir tank and/or sprinkler system or in a bypass mode, where sufficient pressure is only obtained by directly supplying air. The gas supply system can provide for improved safety in operation as well as the ability to operate the sprinkler system primarily when filled with nitrogen supervisory gas.
Systems and methods for the remote testing of a paddle-type flow detector, such as are common in fire protection systems. Specifically, the systems and methods provide for mechanical movement of the vane to test activation of the flow detector under a flow condition, and which measure the amount of time the vane takes to return to the ready position to verify the presence of a paddle on the vane.
G01P 13/00 - Indicating or recording presence or absence of movementIndicating or recording of direction of movement
A62C 37/50 - Testing or indicating devices for determining the state of readiness of the equipment
H01H 35/40 - Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow actuated by devices allowing continual flow of fluid, e.g. vane
H01H 35/24 - Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
G01F 25/00 - Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
G01F 1/28 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow by drag-force, e.g. vane type or impact flowmeter
A62C 35/60 - Pipe-line systems wet, i.e. containing extinguishing material even when not in use
G01P 21/00 - Testing or calibrating of apparatus or devices covered by the other groups of this subclass
H01H 9/16 - Indicators for switching condition, e.g. "on" or "off"
12.
SYSTEMS AND METHODS FOR REMOTE TESTING OF A FLOW SWITCH
Systems and methods for the remote testing of a paddle-type flow detector, such as are common in fire protection systems. Specifically, the systems and methods provide for mechanical movement of the vane to test activation of the flow detector under a flow condition, and which measure the amount of time the vane takes to return to the ready position to verify the presence of a paddle on the vane.
Systems and methods for the remote testing of a paddle-type flow detector, such as are common in fire protection systems. Specifically, the systems and methods provide for mechanical movement of the vane to test activation of the flow detector under a flow condition, and which measure the amount of time the vane takes to return to the ready position to verify the presence of a paddle on the vane.
Systems and methods for the remote testing of a paddle-type flow detector, such as are common in fire protection systems. Specifically, the systems and methods provide for mechanical movement of the vane to test activation of the flow detector under a flow condition, and which measure the amount of time the vane takes to return to the ready position to verify the presence of a paddle on the vane.
A system and method of synchronization protocol for fire alarm strobe systems which has the ability to synchronize the strobe light devices from different manufactures simultaneously.
A system and method of synchronization protocol for fire alarm strobe systems which has the ability to synchronize the strobe light devices from different manufactures simultaneously.
A chemical and associated systems and methods for creating a gas barrier and microbiologically resistant coating consisting of a quaternary ammonium salt, nano- clay and oxygen scavenger to protect metallic surfaces from microbiologically influenced corrosion, oxygen and acid gas (hydrogen sulfide and carbon dioxide) corrosive processes.
An apparatus for monitoring corrosion in a pressurized system such as a water-based fire protection system comprising a corrosion monitor mounted within a section of the system containing fluid, wherein the corrosion monitor comprises a surface comprising at least one point of weakness wherein corrosion of a point of weakness causes a change in pressure in an interior chamber of the monitor, which change can be to provide a signal alerting monitoring personnel.
Systems and methods for evaluating probe signal level readings in a manner that allows a low water detector to distinguish between a probe that is under a fluid level, or is above the fluid level and either being splashed or is within a foam. Low water detectors which utilize these systems and methods are also provided. The detectors generally utilize a representative probe reading, and a dynamic indicator between probe readings, for a set of probe readings taken in a time period to detect low water levels, foam, or surge.
G01F 23/00 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
G01N 11/00 - Investigating flow properties of materials, e.g. viscosity or plasticityAnalysing materials by determining flow properties
20.
Fluid detector recognizing foam and surge conditions
Systems and methods for evaluating probe signal level readings in a manner that allows a low water detector to distinguish between a probe that is under a fluid level, or is above the fluid level and either being splashed or is within a foam. Low water detectors which utilize these systems and methods are also provided. The detectors generally utilize a representative probe reading, and a dynamic indicator between probe readings, for a set of probe readings taken in a time period to detect low water levels, foam, or surge.
G01F 23/00 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
G01N 11/00 - Investigating flow properties of materials, e.g. viscosity or plasticityAnalysing materials by determining flow properties
21.
Fluid detector recognizing foam and surge conditions
Systems and methods for evaluating probe signal level readings in a manner that allows a low water detector to distinguish between a probe that is under a fluid level, or is above the fluid level and either being splashed or is within a foam. Low water detectors which utilize these systems and methods are also provided. The detectors generally utilize a representative probe reading, and a dynamic indicator between probe readings, for a set of probe readings taken in a time period to detect low water levels, foam, or surge.
Systems and methods for evaluating probe signal level readings in a manner that allows a low water detector to distinguish between a probe that is under a fluid level, or is above the fluid level and either being splashed or is within a foam. Low water detectors which utilize these systems and methods are also provided. The detectors generally utilize a representative probe reading, and a dynamic indicator between probe readings, for a set of probe readings taken in a time period to detect low water levels, foam, or surge.
F22B 37/46 - Applications, arrangements or dispositions of alarm or automatic safety devices responsive to low or high water level, e.g. for checking, suppressing or extinguishing combustion in boilers
F22B 37/78 - Adaptations or mounting of level indicators
G01F 23/22 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
G01F 23/24 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of resistance of resistors due to contact with conductor fluid
A water column supervisory switch having a probe arrangement and probe circuitry for detecting the presence of a conductive medium that has reached a predetermined level above a clapper valve inside a dry pipe valve for a sprinkler system is disclosed. The probe arrangement comprises a housing and a probe operatively associated with probe circuitry that provides a means for activating an alarm when the conductive medium reaches the predetermined level in order for maintenance personnel to drain the water from the dry pipe valve.
A62C 37/36 - Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
A62C 35/60 - Pipe-line systems wet, i.e. containing extinguishing material even when not in use
A62C 3/06 - Fire prevention, containment or extinguishing specially adapted for particular objects or places of highly inflammable material, e.g. light metals, petroleum products
A water column supervisory switch having a probe arrangement and probe circuitry for detecting the presence of a conductive medium that has reached a predetermined level above a clapper valve inside a dry pipe valve for a sprinkler system is disclosed. The probe arrangement comprises a housing and a probe operatively associated with probe circuitry that provides a means for activating an alarm when the conductive medium reaches the predetermined level in order for maintenance personnel to drain the water from the dry pipe valve.
A water column supervisory switch having a probe arrangement and probe circuitry for detecting the presence of a conductive medium that has reached a predetermined level above a clapper valve inside a dry pipe valve for a sprinkler system is disclosed. The probe arrangement comprises a housing and a probe operatively associated with probe circuitry that provides a means for activating an alarm when the conductive medium reaches the predetermined level in order for maintenance personnel to drain the water from the dry pipe valve.
A single-piece manifold comprising a body having an inlet in communication with a water supply and an outlet that communicates with a sprinkler system having a main conduit adapted for fluid flow between the inlet and the outlet is disclosed. The body includes a main valve that provides a means of manually shutting off communication with the water supply and first and second check valves positioned across the main conduit for preventing fluid flow therethrough until the sprinkler system is activated. The single-piece manifold has a reduced pressure arrangement comprising a valve member that vents water that may build up between the first and second check valves in order to prevent the back flow of contaminated water from the sprinkler system to the water supply.
A water feed controller which can provide for the addition of a preset fixed amount of water to be added after a low water condition is removed. This system provides for a preset fixed amount of water to be added to a boiler above the amount which triggers the low water condition. This generally inhibits excess cycling from the boiler operating at its minimum safe water level as well as inhibiting overfilling of the boiler. Further, there is discussed a water feed controller which can measure the amount of water added over a prior predetermined period (such as 30 days) which serves as a floating window of time so that a leak or other condition resulting in overly frequent filling can be detected quickly.
A low-water cut-off system [A] determines if fluid [W] within a boiler or other enclosure drops below a predetermined level within the enclosure. A signal generator introduces a signal into the enclosure so that the signal is present for sensing at the predetermined level, where a probe is provided for sensing the signal if present as occurs if the water is at the predetermined level. A control, which includes a microcontroller, is responsive to the probe for providing a control function in response to whether the signal is so sensed by the probe, and so to determine if water has dropped below the predetermined level. The function may be causing alarm signalling or boiler heating cut-off. Self-test and time delay features are also included. Provision is made so that the control compensates for variation in electrical conductivity of the water through which the probe signal is sent, including circuitry to adjust for a wide range of possible purity levels. Provision is included such that the low water cut-off system is fault tolerant no matter at what water purity it is adjusted to operate.
G01F 23/22 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
G01F 23/28 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
G08B 21/00 - Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
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