Abstract: A system and method for enabling the replacement of electric toothbrush heads on toothbrush models that require users to replace the entire toothbrush head assembly is described. Toothbrush head assemblies typically include much more than a simple toothbrush head, for example, a shank attached to magnets and a housing for coupling the shank to the toothbrush base. The present invention therefore permits the replacement of worn out toothbrush heads instead of entire toothbrush head assembly that includes many parts that have not worn out. The system includes tools for separating an existing toothbrush head from a shank and replacement toothbrush heads having new bristles that couple with the shank or the head assembly of a particular toothbrush model.

Abstract: Enables electric toothbrush head replacement on models that require users to replace entire toothbrush head assemblies. The head assemblies include much more than a simple toothbrush head, for example a shank attached to magnets and a housing for coupling the shank to the toothbrush base. Allows for replacement of a worn out toothbrush head instead of the entire toothbrush head assembly that includes many parts are not worn out. Although selling entire head assemblies may increase the manufacturer's margin, this practice of selling more than is needed is wasteful, environmentally unfriendly and more costly to the user. Includes tools for separating an existing toothbrush head from a shank and replacement heads that fit the shank of a particular toothbrush model.

Abstract: An adjustable sheet for a windsurfing harness on a boom of an articulated mast of a windsurfing board comprising an elastic element, one end of which is secured to the boom; a sheet which is attached to the other end of the elastic element; a dual-action clamp through which the sheet is routed; and a quick release element to disengage the dual action clamp such that the sheet is disengaged from the dual-action clamp and the sheet may be elongated or shortened.