Patent ID: 7960630
Filing Date: 2011-06-14
Classification: G10D

Abstract:
1. An apparatus comprising: a body; a neck extending from the body; a plurality of tensioned strings attached to the neck and extending over the body; a base disposed on the body, the plurality of tensioned strings extending over the base, wherein the base includes a base support surface defining a support plane; and a roller bridge disposed upon the base, the roller bridge including a plurality of roller support assemblies, wherein each roller support assembly comprises a saddle block with two opposing walls, wherein each wall contains a roller bore, and yet further wherein the roller bore on one opposing wall is disposed farther from the base than the roller bore on the other opposing wall, and a plurality of rollers, wherein each roller is contained within the saddle block and disposed so as to rotate around a corresponding roller axis, wherein the corresponding roller axis is defined by an axis through the roller bores on the opposing walls and further disposed so as to receive one of the tensioned strings, wherein, the tensioned string exerts both a static force component along the corresponding roller axis and a vibratory force component along the corresponding roller axis, further wherein the corresponding roller axis is disposed with relation to the support plane such that the static force component directed upon the corresponding roller axis is generally greater than the vibratory force component directed along the corresponding roller axis.