Patent ID: 7402933
Filing Date: 2008-07-22
Classification: H01R,H02K

Abstract:
1. A brush holder system for use with an electric motor, generator, or actuating device, the system comprising: a constant force spring having a pair of coils positioned on either end of a middle section; a carbon brush; and a brush holder having a body defined with opposing sides, an upper portion and a lower portion, the lower portion having a pair of flanges separately extending from opposing sides of the body, each flange includes a channel to receive a fastener to secure the body to the electric motor, generator, or actuating device, the upper portion having a pair of members separately extending from opposing sides of the body, the members having a curved surface to accommodate an outside surface of the coils of the spring, the body further includes a lateral bore positioned through the body such that openings of the bore are positioned about the pair of members, the lateral bore sized to accommodate the middle section of the spring, and an anterior bore positioned through the body, the anterior bore being positioned to transverse the lateral bore and sized to accommodate the carbon brush such that one end of the carbon brush is positioned against the middle section of the spring, and wherein when the brush holder is secured to the electric motor, generator, or actuating device, the middle portion of the spring engages said one end of the carbon brush and resiliently pushes said brush against a rotating conductive surface of the electric motor, generator, or actuating device with a constant force.