Back to results
US 6,023,951 AGranted
Method of securing against theft of goods and device for carrying out said method
AssigneeAlbert Maurer
InventorsAlbert Maurer, Urs Meyer
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeAlbert Maurer
InventorsAlbert Maurer, Urs Meyer
Estimating the term…
An apparatus and method for using a permanent magnet with a high coercive force and a permanent pole-reversible magnet with a low coercive force used in securing members in cooperation with wedging members. The apparatus also includes a release device, with a securing member inserted, and a combined control and feed device and a verification device, in the form of a till. The entire release device can therefore be, for example, directly linked to invoicing for a paid sum. The control and feed device controls and feeds the electromagnet coil of the magnetizing device. To release a securing member, the magnetizing device is activated, thereby reversing the poles of the permanent pole-reversible magnet. Both permanent magnets in the securing member subsequently repel, the wedge is released and the pin can be withdrawn from the locking section.
In a method for securing an article (5) against theft wherein a pin (11) having a broad head is pushed through the article (5) to be secured and on an opposite side of the article (5) is inserted into a retaining part (10), wherein the pin (11) is held in the retaining part (10) under an effect of a retaining force field by at least two wedging elements (17, 18) which can be wedged against one another and against the pin (11), and the pin (11) is secured against withdrawal, the article (5) is released by the wedging elements (17, 18) being released by the magnetic field so that the pin (11) may be removed from the retaining part (10) and from the secured article (5), the improving comprising:
In a device for securing an article (5) against theft, the device having securing elements and a release apparatus, wherein each of the securing elements (1) comprises a pin (11) which can be pushed through the article (5) and a retaining part (10) having at least two wedging elements (17, 18) wedgable against one another and against the pin (11), the wedging of the wedging elements (17, 18) operates under an effect of a retaining force field which can be released by a releasing magnetic field induced by the release apparatus, the improvement comprising:
Dependencies are inferred from the claim text.