GB2405015A

GB2405015A - Aerosol intruder deterrent using passive infrared sensor and solenoid activation

Info

Publication number: GB2405015A
Application number: GB0319070A
Authority: GB
Inventors: Colin Longstaff; Graham Longstaff
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-08-14
Filing date: 2003-08-14
Publication date: 2005-02-16
Also published as: GB0319070D0

Abstract

An automatic intruder deterrent uses conventional aerosol spray cans activated by a solenoid plunger 4.2, 4.5 which forces down on the can's activator. The solenoid is connected to a passive infrared motion detector. The system is preferably battery operated and can be set or reset by a remote control. The system may include an alarm activated by a tilt sensor to guard against theft of the system. The system may be used for pest control. The system may also be adapted to act as an automatic air freshener, so that an air freshener aerosol might be activated within a room whenever someone entered or exited.

Description

240501 5 The SKATTZ

Description

The skattz is primarily designed to scare off any unwanted animal or person from anywhere within the boundary of your premises. It can also be used in areas such as cars, boats etc. as a stand alone deterrent.

Based on a power source using any of a number of standard power tool batteries with a pedestal mounted onto it. Onto this pedestal in turn is mounted a "PIR" which has been 0 modified to allow it to work on the voltage of the power source "18 Volts" preferred.

The PIR has an external power provider incorporated that is activated by the PIR but is provided by the battery of the pedestal. This is connected to a solenoid that is capable of exerting enough force (around 25 Newtons) to activate a standard aerosol can. The contents of the aerosol are a matter of personal preference depending on the deterrent factor required but controlled in the end by the requirement to act within the law. In the interests of health and safety the manufacturers instructions for use must be adhered to.

Technical Field

An intruder deterrent.

Background art

Based on an integration of two basic devices namely 1/ A "P1R" of the type illustrated on sheet 1/4 Fig 1.1 1/ A rechargeable pedestal torch of the type illustrated on sheet 2/4 Fig 2.1

Disclosure of invention

The invention as illustrated on sheet 3/4 clearly shows how the physical integration has taken place from the devices of sheet 1/4 the PIR 1.1 and sheet 2/4 the Pedestal Torch 2.1.

The PIR has been modified in several ways, first the angle of detection was limited to around 30 to limit the active field of vision and the sensitivity reduced to around 2 metros. Also changes were made to the circuitry to work off the preferred voltage of 1 8V, instead of its intended 220V mains. The wiring has also been modified to allow the 3s incorporated relay (in the Pin) indicated as 3.2 to tap into and provide 18V from the battery when activated.

This is provided as an external source indicated as 3.1. and as 4.6 with cable attached.

When activated by the heat of "the intruder", 1 8v is thus presented at the external source 3. I. This is then transmitted along the cable shown on sheet 4 as 4.1 to the solenoid 4.2.

The solenoid has to exert sufficient force to operate a standard aerosol can.

To achieve this the solenoid is mounted on a base 4.3 which in turn has clips shown as 4.4 that attach it firmly to the aerosol cans neck. Thus when operated the solenoids plunger 4.5 is forced down onto the aerosols activator and content is expelled in the normal way.

Since this device is likely to be expensive and desirable. As well as deliberately designed to be fully portable, several security measures are to be incorporated to prevent it being stolen including: 1/ Remote control activation. ( without the remote the device is worthless) 2/ Lockable battery ( device would have to be destroyed to recharge battery) 3/ Tilt alarm ( that would activate if anyone moved it while activated) so The remote control has the added advantage that the unit can be set or reset without the danger of accidentally spraying yourself.

It would also be useful to have a red/green LED to indicate condition of battery as with a flat battery the alarm will not operate.

Manufacturing techniques The whole unit must be waterproof as one of its main uses is for external pest control.

This will be made easier as the unit will not have an on/off switch, unlike the prototype thus the case will be virtually unbroken and therefore waterproof by default.

The solenoid must provide in the order of 25 Newtons of force in order to operate the aerosol successfully.

Claims

1/ A stand alone heat sensitive aerosol activator, usually used as an intruder detector/deterrent, based on a rechargeable battery powered FIR that has been modified to activate a solenoid, which in turn has been modified to operate a standard aerosol can, which may have several features designed for anti-theft reasons.

lo 2/ As in claim one an intruder deterrent, that can be remotely activated 3/ As in claim one an intruder deterrent that can include an alarm 4/ As in claim one an intruder deterrent that can include a battery lock 5/ As in claim one an intruder deterrent that can have a battery condition indicator 6/ As in claim one an aerosol activator that may be used as a free standing automatic air freshener