Security devices and straps therefor
AssigneeZeal Innovation Ltd.
InventorNeil Anthony Barron
Life of this patent
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Abstract
A strap for a security device has a core (12,62) within a flexible sleeve (14,64), and the sleeve is extensible independently of the core such that the core is not under tension. Because the core is not under tension, it is more difficult to cut and substantially inhibits, if not prevents, cutting of the sleeve. The core may take various forms which resist cutting in different ways. Examples are elongate, normally metallic planar bodies (12,34,38) having longitudinal flexibility but resistance to lateral flexure, and extensible springs (16,22,26). The sleeve (14,64) can also be designed to complicate any attempt to cut the strap as a whole, and may comprise multiple layers (76,78).
Claims34
A security device in which a strap with a central core consisting of at least one elongate planar body is contained within a flexible sleeve, with complementary locking units secured at opposite ends of the flexible sleeve, wherein the complementary locking units receive respective ends of the central core, wherein the flexible sleeve is extensible independently of the central core such that the central core is not under tension, and wherein a length of the central core is at least equal to a spacing between the complementary locking units when the flexible sleeve is fully extended.
A security device in which a strap with a central core comprising at least one elongate planar body with longitudinal flexibility but resistance to lateral flexure is contained within a flexible sleeve, with complementary locking units secured at opposite ends of the flexible sleeve, wherein the complementary locking units receive respective ends of the central core, wherein the flexible sleeve is extensible independently of the central core such that the central core is not under tension, and wherein a length of the central core is at least equal to a spacing between the complementary locking units when the flexible sleeve is fully extended.
A security device in which a strap with a central core comprising at least one extensible helical spring is contained within a flexible sleeve, with complementary locking units secured at opposite ends of the flexible sleeve, wherein the complementary locking units receive respective ends of the central core, wherein the flexible sleeve is extensible independently of the central core such that the central core is not under tension, and wherein a length of the central core is at least equal to a spacing between the complementary locking units when the flexible sleeve is fully extended.
Dependencies are inferred from the claim text.