Abstract:
A magnetic system for the unlocking of padlocks and locks ( 10 ) characterized by the fact that it includes:
       A lock-cover element ( 11 ) which together with a component fixed to a fitting, itself patented, allows or disallows access to a keyhole,   A unlocking-key element ( 12 ) which has the function of blocking or unblocking the lock-cover element ( 11 ).

Description:
PRIORITY INFORMATION 
       [0001]    This application is a continuation of International Patent Application No. PCT/IT06/000180 filed on Mar. 23, 2006 which claims benefit of Italian Patent Application No. 1M2005A000143, filed on Mar. 24, 2005, all of which are incorporated herein in their entirety. 
     
    
     BACKGROUND OF THE INVENTION 
       [0002]    1. Field of the Invention 
         [0003]    This industrial invention patent regards a magnetic system which when placed within padlock and lock mechanisms allows these mechanisms to be blocked or unblocked at the discretion of the user. 
         [0004]    In particular this device includes a magnetic system which by use of a device protected by a personalized code can either permit or prevent the movement of a mechanism to which it is applied. 
         [0005]    2. Brief Description of the Art 
         [0006]    This industrial invention patent constitutes an innovation in the field of common unlocking systems for padlocks and locks and in particular for those used for doors. Reference to this type of use will later be made but this will only be done for example purposes since the same principles are applicable for other applications (for example safes and locking devices in general). 
         [0007]    With current technology magnetic unlocking systems for padlocks and locks are composed of devices that include magnetic components in the key. These keys can pose a serious health risk to patients with internal medical devices that are sensitive to magnets such as paces makers. Furthermore transporting such keys together with credit cards or cards with magnetic stripes can alter the magnetic properties of both the keys and the cards. 
         [0008]    The device being presented for this industrial invention patent develops current systems in that the device only contains magnetic components in the mechanism of the padlock or lock applied to the fitting and not in the keys body. 
       SUMMARY OF THE INVENTION 
       [0009]    Consequently the specific object in question of this industrial invention patent is a magnetic system for the unlocking of padlocks and locks characterized by the fact that it includes:
       one or more fixed base elements;   one or more magnet sensitive plates which are inserted in the fixed base element;   one or more overlying elements that can be made to move;   pairs of pins made of magnet material and of varying length which either prevent or permit the movement of the base and overlying elements;   screws that have the function of keeping the fixed base elements fastened to the overlying elements;   means for unlocking that are made from material that is either magnet sensitive or magnet insensitive and that according to predetermined and personalized codes either attract or leave the pairs of magnets immobile;   components that assemble the unlocking means and that maintain the personalized code constant; and   aesthetic and mechanical trimmings aimed at distinguishing the system and to make it suitable for general use with all commercially available padlocks and locks.       
 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0018]    The invention will now be described in an illustrative but not limited manner as being part of an already generally known device for covering padlocks and locks but it must be understood that this only has the aim of making the clearer the presentation description and enunciation. The design patent will now be illustrated in its preferred but not exhaustive design form with particular attention being paid to the attached drawings in which: 
           [0019]      FIG. 1  is a perspective view of the disassembled magnetic system for the unlocking of padlocks and locks; 
           [0020]      FIG. 2  is a perspective view of the magnetic system for the unlocking of padlocks and locks when in the blocked configuration; 
           [0021]      FIG. 3  is a perspective view of the magnetic system for the unlocking of padlocks and locks when in the rotation and unblocking configuration; and 
           [0022]      FIG. 4  is a perspective view of the magnetic system for the unlocking of padlocks and locks when in the configuration that favours favors access to the underlying lock. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0023]    The preferred design form of the industrial invention patent will now be described in detail. As illustrated in  FIGS. 1-4 , the magnetic system for the unlocking of padlocks and locks ( 10 ) is composed of:
       1. A lock-cover element ( 11 ). The lock-cover element ( 11 ) has several sub-components which are:   a covering element ( 13 ) at the top of which is there exists a depression for the insertion of a key and on the inside of which there are holes into which magnets may be inserted;   one or more gear tooth elements ( 13 / a ) in order to allow the lock-cover element ( 11 ) to be either be freed from or to remain blocked with respect to the device to which it is applied this device itself already being patented;   one or more overlying magnetic pins ( 14 ) having either a long measurement (14/a) or a short measurement (14/b) The function of the of magnetic pin measurements is that of whether either being attracted or remaining immobile of bringing their mating surfaces to the same level as those of the surface levels of the covering element ( 13 ) and of the plate element ( 15 ), so as to allow the rotation of the covering element ( 13 ) with respect to the plate element ( 15 ) and hence facilitate the rotation and the unblocking of the gear tooth elements ( 13 / a );   a plate element ( 15 ) having a magnet sensitive a base platelet ( 15 / a ) fixing-teeth ( 15 / b ) and sockets into which can be inserted magnets that have the function of blocking or unblocking the covering element ( 13 ); and   a screw element ( 16 ) which has the function of holding together the lock-cover ( 11 ).   An unlocking-key element ( 12 ) The unlocking-key element ( 12 ) consists of several sub elements which are:   a clip element ( 17 ) for positioning and turning the unlocking-key element ( 12 );   a key-body element ( 18 ) having holes into which the coding-pins ( 20 ) are inserted;   a friction-ring element made from plastic ( 19 );   one or more coding-pin elements ( 20 ) made from either magnet sensitive ( 20 / c ) or magnet insensitive ( 20 / d ) material such that they can attract or leave immobile the magnetic-pin elements ( 14 ) and in so doing align them with the covering ( 13 ) and plate ( 15 ) element levels so as to allow for the rotation and unblocking of the lock-cover ( 11 ) and hence facilitate the insertion of the key into the underlying lock given that when in a state of rest the pairs of magnets are attracted to the base platelet element ( 15 / a ) the sequence of events that takes place when the unlocking-key element ( 12 ) is brought near the depression situated on the top of the lock-cover element ( 11 ) is as follows:       
 
         [0035]    The magnet sensitive ( 20 / c ) coding-pins ( 20 ) located in the key-body ( 18 ) attract the magnet pairs located in the holes on the internal surface of the covering element ( 13 ) and the plate element ( 15 ) thus moving the mating surface of the magnet pairs to the same level as that of the covering element ( 13 ) and of the plate element ( 15 ) surfaces while the magnet insensitive ( 20 / d ) coding-pins ( 20 ) leave immobile the pairs of magnets on the inside of the lock-cover ( 11 ), the mating surfaces these already being at the same level as those of the covering element ( 13 ) and plate element ( 15 ) surfaces. 
         [0036]    The sequence of necessary operations for gaining access to the underlying lock is as follows:
       place the unlocking-key ( 12 ) into the depression on the top of the lock-cover element ( 11 ) as illustrated in  FIG. 3 ,   rotate the lock-cover element ( 11 ) anti-clockwise as illustrated in  FIG. 3 ,   remove the lock-cover element ( 11 ) so as to facilitate the insert pin of the subsequent key as illustrated in  FIG. 4 .       
 
         [0040]    This invention has been described in an illustrative but nevertheless not a limited manner according to its preferred design form but it must be understood that any variations and/or modifications may be made without leaving the relative ambit of protection as defined in the attached claims.