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US 2024/0392605 A1Published application
Security Devices
AssigneeZeal Innovation Ltd.
InventorNeil Anthony BARRON
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AssigneeZeal Innovation Ltd.
InventorNeil Anthony BARRON
Estimating the term…
A security device has a metallic elongate body with at least one end attachable to a lock unit. The body has at least one track of material of the kind referred to above extending longitudinally on the surface thereof and metallurgically bonded therewith. The material of the track has particles of a hard cut-resistant material dispersed in a self-fluxing matrix of lower melting point than that of the body and comprising one of nickel, iron and cobalt in composition with chromium, silicon and boron. The tracks are normally applied to the elongate body by welding, preferably laser welding or laser cladding, but plasma arc welding or brazing might also be used. The lower melting point prevents melting of the elongate body while enabling the metallurgical bond. Tungsten carbide is the preferred hard cut-resistant material, but other materials might be used, such as silicon carbide, cubic boron nitride, or industrial or synthetic diamond.
A security device in which a metallic elongate body has at least one end attachable to a lock unit, wherein the body has at least one track extending longitudinally on the surface thereof, the material of the track having particles of a hard cut-resistant material dispersed in a self-fluxing matrix of lower melting point than that of the body and comprising one of nickel, iron and cobalt in composition with chromium, silicon and boron, the or each track being metallurgically bonded with the elongate body.
A security device according to claim 21 wherein said at least one track has a maximum thickness of 2 mm
A security device according to claim 21 wherein said at least one track has a width in the range 3-10 mm.
A security device according to claim 21 wherein said at least one track is compressed into the elongate body.
A security device according to claim 21 wherein the elongate body has a circular cross section.
A security device according to claim 21 wherein said at least one end of the elongate body is attachable to the lock unit by entering an opening therein, and wherein a track of material having particles of a hard cut-resistant material dispersed in a self-fluxing matrix comprising one of nickel, iron and cobalt in composition with chromium, silicon and boron is metallurgically bonded with the lock unit around the boundary of the opening.
A security device according to claim 21 wherein the elongate body is encapsulated in a layer of polymeric material.
A padlock comprising a security device according to claim 21 wherein the elongate element is the padlock shackle.
A security device in which a metallic elongate body has at least one end attachable to a lock unit, wherein the body has at least one track welded to and on the surface thereof a cut-resistant material suspended in a low melting point self-fluxing metal based matrix.
A method of reinforcing an elongate metal body that has at least one end attachable to a lock unit by welding longitudinally on the surface thereof at least one track of a material comprising a cut-resistant material suspended in a low melting point self-fluxing metal based matrix.
Dependencies are inferred from the claim text.