Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1993-03-08
1994-09-13
Hofsass, Jeffery A.
Communications: electrical
Condition responsive indicating system
Specific condition
340605, 1374875, 137551, G08B 2100
Patent
active
053472640
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This invention relates to an arrangement for a monitoring system or an alarm system comprising devices and sensing components for varying tasks, preferably a system which contains devices for the detection of entry into the area which the system is intended to cover.
In more detailed terms, the invention relates to an arrangement for an alarm system so arranged as to prevent and/or detect the unintended or otherwise accidental escape of water or similar from pipe systems or networks to which apparatuses and units are connected within the area concerned.
DESCRIPTION OF THE PRIOR ART
Already disclosed is a series of detecting devices which can be positioned, for example, beneath dishwashers and similar units for the purpose, in the event of the escape of water, of giving an alarm and/or causing the water supply to the unit to be switched off.
Also previously disclosed are so-called hose rupture valves, which sense any drop in the specified pressure beyond the valve and, this being the case, close the valve.
Also previously disclosed for the purpose of reducing the risk of the escape of water going undiscovered in apartment blocks, for example, is the arrangement of an electromagnetically actuated valve in the incoming main supply pipe, and the control of that valve by means of a manually operated switch arrangement located on the exterior door, i.e. on a so-called cam lock. The water is thus turned off on leaving the house and locking the door behind one.
Alarms and/or shut-off devices arranged on the respective units have failed to gain widespread acceptance, because intervention is required in the supply to each unit and, as a rule, a power supply must also be provided to the sensing and shut-off devices.
A shut-off arrangement capable of actuation by means of the exterior door lock obviously reduces the risk of water escaping when the apartment is empty, although it offers no protection when the occupants are at home or sleeping, or have not locked the exterior door for some reason. Of course, in an apartment or the like with several room, water can continue to escape without immediately being noticed. The risk of leaks can also increase at night, as the pressure in the pipes is then often higher than during the day, when consumption is greater.
OBJECT OF THE INVENTION
An object of the present invention is to provide a simple and reliable arrangement capable of integration into or connection to a control or alarm installation for other purposes, and which can monitor any pipe system or network without the need for intervention in the network to take place at more than a single point. The alarm system may be already existing or concurrently installed, and common components can be used for internal and external reporting and for giving the alarm.
A further object of the invention is to provide an arrangement which is activated or which starts to function as soon as the area or the premises supplied by the pipe system are not under supervision, and which is de-activated without the need for special measures when the area or the premises supplied by the pipe system are once more under supervision.
BRIEF DESCRIPTION OF THE PRESENT INVENTION
Basically speaking, the present invention provides, by relatively simple means, an arrangement for effective monitoring of water pipes and tapping points and the water consuming or utilizing units connected thereto.
The invention is based on the ideal of causing devices for sensing presence or movement in one or more areas to control the supply of water to the pipe network and the consumer units within those areas. Preferably, the arrangement of the invention is set up in such a way that not only presence as such, but also function or movement of a specified kind or to a specified extent has a determining effect on whether the water supply is to remain turned off or is to be allowed to flow.
In one preferred embodiment, use is made of presence or movement detectors from a premises monitoring installation, which are used to guard or scan the areas,
REFERENCES:
patent: 4107941 (1978-08-01), Hamilton
patent: 4402095 (1983-09-01), Pepper
patent: 4823414 (1989-04-01), Piersimoni et al.
patent: 5004014 (1991-04-01), Bender
Hofsass Jeffery A.
RB Larmprodukter AB
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