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`the invention provides such a (levies; for use by drivers who are in
`Specifically,
`vehieies for long periods.
`
`in its broadest sense, comprises a magnetic therapy device being a
`The invention,
`ilexihie pact which is adapted to he in close contact with a user when in use, which
`pad includes at least one eiongateci magnetic coil which is adapted to be locateti
`ediecent the portion of the body of the user to be treated, a support upon which this
`coil is located and a coveriig for the coii.
`
`.referebiy the eoil may be in e sandwich of e material having no magnetic
`properties, such as a flexible foam material and there may be on external cover
`
`which has a surface against which it is pleasant to rest, i“or example iambswooi.
`
`The fieio in the magnetic ooii may be induced by an electronic device having an
`(in/off ratiio of lot onernting, say, on a 2i} millisecond cycle with the cycle being
`effected for mil miiiiseconds and broken for the next mi} inilliseeonds2 that is a 5 Hz
`signs}.
`Preferably there may he more than one coil and the coils may be located
`side by side and be of different polarity.
`
`in
`the invention may he more readily understood, i shall describe,
`in order that
`relation to the accompanying drawings, one particular form of device inane in
`
`accordance with the invention, which form is adented for use in a vehicle.
`
`In these drawings:
`
`Fig. l
`
`ilinstretes schematically the pad of the invention as fitted to a
`
`vehicle seat; and
`
`Fig. 2
`
`is a block diagram showing an arrangement whereby the one can be
`activated.
`
`in the flexible pad 18, illustrated in Fig. l, i may have two eoils ll, 12, each of which
`
`may comprise thirty turns of wire and each of which is in the form of a rectangle
`having a longer side of} say, 750 mm and a width of}, sey2 13o mm with the two coils
`
`being adjacent with their 75% mm sides contiguous.
`
`Che coil is preferably wound in such a way as to he effectiveiy a north coil, and this
`is so indicated on the Figure, and the other2 in the opposite way, to be effectively a
`south coil‘
`
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`The output level is adjusted tc nermeliy provide appreximetely 5i} geuss at the coils
`
`11, 12 of the pad 18 which would give approximately 15 genes where the field comes
`into contact with a user.
`
`The timer is provided te restrict the nmpiificetien and transmission of pulses fer half
`
`an heur in a four hour period, although the specific times can be varied.
`
`the ignition of the
`is such that, notwithstanding the feet that
`The arrangement
`vehicle may he switehed on and switched off, the timer retains a memory se that,
`after a fuil period of treatment, which can be broken, there can he he further pulses
`transmitted for the minimum at a three and a half hour period,
`
`in use, if the device is to be used tn prevent musele stiffness and pein in a vehicle
`
`driver's hack the pad of the inventien is located against the rear Of the seat oi" the
`
`vehicle and is held in positien thereehouts by means of the straps or the trike in which
`are tied about the seat back.
`
`The pulse senree is canneeted to n seureeef power, such as by a cigarette lighter
`socket, and the uperation of the {levies commences end continues as nreviously
`described for en en period at“ half an hour and an off peried of three and a half hours.
`
`The driver, in his nermei driving position? has his back in ciose proximity to the part
`it}, which is comfortable because cf the iamhswoel severing, and provides magnetite
`waves to the museles of the driver at the selected, which is a desired, frequency and
`at a newer which is considered te be suitable.
`
`if the driver should be suffering from muscle pains in the thighs er calves, it is
`possible that the tieviee be located on the seat ef the vehicle and extend thereever se
`
`that the magnetie tieid een he brought into eonteet with those muscles.
`
`Further, although i have described the device as being useful in e vehieie situation, it
`wiii be perceived that. for persons with muscle sereness, the device could he used as
`
`an underhlenket on a bed or chair so that, during rest, magnetic treatment of the
`
`bedy museles could he provident.
`
`i have described one pertieuier form ef menufeeture of the pad of the
`Whilst
`invention, it Wiii be perceived thst the coils could be located in a material other than
`
`a synthetic plastics teem end, else? that it would set he neeessery that the outer
`
`cover be iemhswoei, although it wouid be desirable that the cover be of a material
`
`

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