Abstract: The present invention provides a helmet, comprising first and second components having a sliding interface between them, wherein the sliding interface is provided between respective sliding surfaces of the first and second components, and the first component comprises (a) a mixture of (i) an olefin polymer, (ii) a lubricant, and optionally one or more further agents; or (b) an ultra high molecular weight (UHMW) polymer having a density of ?960 kg/m3, which UHMW polymer is preferably an olefin polymer.

Abstract: A helmet comprising first and second parts and a connector connecting the first and second parts of the helmet, the connector comprising: a first plate; a first anchor point on one side of the first plate, configured to be connected to the first part; a second plate located on an opposite side of the first plate from the first anchor point; a second anchor point on an opposite side of the second plate from the first plate, configured to be connected to the second part; a low friction interface provided between opposing surfaces of the first and second plates; and a cuff of deformable material provided around the first and second plates, and configured to at least partially cover the side of the first plate on which the first anchor point is located and to at least partially cover the side of the second plate on which the second anchor point is located.

Abstract: The present invention provides a helmet, comprising first and second components having a sliding interface between them, wherein the sliding interface is provided between respective sliding surfaces of the first and second components, and the first component comprises (a) a mixture of (i) an olefin polymer, (ii) a lubricant, and optionally one or more further agents; or (b) an ultra high molecular weight (UHMW) polymer having a density of ?960 kg/m3, which UHMW polymer is preferably an olefin polymer.

Abstract: There is disclosed a connector for connecting first and second parts of an apparatus, the connector comprising: a deformable retainer having first and second sides around an inner space; and a first plate positioned within the inner space to provide a low friction interface between the first and second sides of the retainer; wherein the first side of the retainer has a first anchor point that is configured to connect the connector to the first part of the apparatus; and the second side of the retainer has a second anchor point that is configured to connect the connector to the second part of the apparatus.

Abstract: A connector for connecting first and second parts of an apparatus, comprising a first plate; a first anchor point on one side of the first plate, configured to be connected to the first part; a second plate located on an opposite side of the first plate from the first anchor point; a second anchor point on an opposite side of the second plate from the first plate, configured to be connected to the second part; a low friction interface provided between opposing surfaces of the first and second plates; and a cuff of deformable material provided around the first and second plates, and configured to at least partially cover the side of the first plate on which the first anchor point is located and to at least partially cover the side of the second plate on which the second anchor point is located.