1. Field of the Invention
The present invention relates generally to fire protection systems, and particularly to a portable fire protection system having a self-contained supply of water or other fire extinguishing agent and a self-contained operating system, actuated by a remote wireless detector.
2. Description of the Related Art
Fire suppression or protection systems are required by law in many, if not most, public access structures, homes for the physically and mentally infirm, hospitals, schools, day care centers, and other such facilities. It is well known that the fire protection networks of detection systems and devices, water pipes, sprinkler heads, and other related components are generally quite costly, but the potential benefit and legal requirements outweigh the cost of installation and maintenance of such systems.
People are well advised to install similar systems in their own homes or private residences, as well. However, this is generally not done due to the expense of such systems. Rather, people will rely upon one or two smoke detectors located at various places in the residence, and perhaps one or two hand held fire extinguishers. While the smoke detectors may provide sufficient warning for the occupants of the residence, it may be that they are unable to access a portable fire extinguisher when needed. Moreover, many private residences have one or more very small children or infants and/or older adults of limited mobility. A mere smoke detector and hand held fire extinguisher may be insufficient protection against a fire in the residence, and may not provide sufficient time for some people in the residence to escape or to be rescued.
Accordingly, various portable fire protection and extinguishing devices and systems have been developed in the past, e.g., the hand held fire extinguishers noted above. Another example is found in Korean Patent Publication No. 20100084952 published on Jul. 28, 2007 to Byeong Su Min. This reference describes (according to the drawings and English abstract) a system having a wall-mounted fire sprinkler nozzle aimed to spray water on the interior ceiling of the structure in which it is installed.
Thus, a portable fire protection system solving the aforementioned problems is desired.
The portable fire protection system essentially comprises a housing containing a supply of water or other fire extinguishing agent and an operating system for dispensing the water or agent when the device is activated. The housing is mounted on casters or other wheels to facilitate positioning the device as desired in a structure or elsewhere. The housing includes a tank for water or other extinguishing agent, with a low pressure pump providing extinguishing agent to a sprinkler head. The housing also includes an electrical storage battery for operation of the pump independent of external electrical power. However, a battery charger is also provided, with the charger receiving electrical power from a conventional external electrical source as needed to maintain battery charge.
A pop-up sprinkler head is provided atop the housing, with a guard or support structure extending upward from the top of the housing and generally surrounding the sprinkler head. The sprinkler head is normally retracted when the system is inactive, but extends automatically to spray water or other extinguishing agent in a predetermined pattern when the pump is activated. The relatively low pressure of the pump and sprinkler head combination results in an array of variably sized water droplets, with larger droplets removing heat and drowning the fire and smaller droplets serving to cool the air. The system is activated by a remotely disposed, wireless smoke and/or fire detection device, with the housing having a receiver therein to receive a signal(s) from the detector.
The system is relatively compact, with the greater portion of the volume of the device being taken up by the tank or container therein for the extinguishing agent. The compact configuration of the system permits it to be stored or disguised within an overlying cabinet or other article of furniture, for an unobtrusive appearance when placed in a room in a residence or other structure. The device may include one or more automatically activated lights when the system is activated by the detector.
These and other features of the present invention will become readily apparent upon further review of the following specification and drawings.
Similar reference characters denote corresponding features consistently throughout the attached drawings.
The portable fire protection system comprises a self-contained apparatus 12 including a quantity of fire extinguishing agent, a pump, a pop-up sprinkler head, a power supply, and a receiver. A remotely located smoke and fire detector communicates wirelessly with the receiver to actuate the apparatus in the event that smoke and/or fire is detected. The entire system including the apparatus and the remotely located detector is illustrated in the block diagram of
The pump 22 supplies fire extinguishing agent to an automatically deployed, pop-up type sprinkler head 26 situated in the superstructure 18 via a supply pipe 28. The sprinkler head 26 comprises an outer shell 26a containing a pop-up sprinkler unit 26b. The pop-up unit 26b is normally concealed within the outer shell 26a, as shown in
The superstructure 18 of the apparatus comprises mutually parallel, first and second arched members 30a and 30b that extend from the top 16 of the housing 14. An intermediate sprinkler head mounting plate 32 is installed in the superstructure 18, above the top 16 of the housing 14 and between the arched members 30a and 30b. This provides a solid, rigid mounting plate to which the base of the sprinkler head 26 is attached to extend upward above the mounting plate 32. Additional lateral members 34a and 34b may be provided, to serve as handles to facilitate movement of the apparatus 12 and/or to assist in holding a non-rigid cover clear of the upper portion of the apparatus 12. Casters, wheels, or rollers 36 (
The electrical storage battery 38 also provides electrical power to the wireless receiver 44 installed with the housing 14. The receiver 44 is set to receive signals (RF, IR, etc.) from a smoke and/or flame detector 46 situated remotely, but within operating distance, of the apparatus 12 and its receiver 44. The detector 46 includes a conventional transmitter that is actuated simultaneously with actuation of the detector 46 when sufficient smoke and/or flame is detected. The transmitter sends a signal to the receiver 44, with the receiver 44 actuating the pump 22 (and optionally a light 48) via appropriate relays, e.g., relay 50, and/or other circuitry as required. If the pump 22 operates on alternating electrical current, an inverter 52 is provided in the power circuit to the pump 22. Normally open, momentary contact test and reset switches, respectively 54 and 56, are provided with the housing 14, e.g., in a panel adjacent to other electrical circuitry disposed below the tank 20 in the apparatus 12.
In
It is to be understood that the present invention is not limited to the embodiments described above, but encompasses any and all embodiments within the scope of the following claims.
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20100084952 | Jul 2010 | KR |
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