US 7,034,430 B2 · Brush holder apparatus, brush assembly, and method

Abstract

Devices and methods of use for brush holders are disclosed. A brush holder including an over-center locking device is disclosed. Also illustrated are methods and devices for maintaining brush pressure against a moving conductive surface using a spring without a back plate. Methods and devices for routing current from a brush to an output location without conducting through a brush box are shown. A system for ready removal and replacement of brushes, contacts and springs is disclosed. Also included are mechanisms and methods for preventing a brush from falling downward or out during removal of the brush. Methods and devices for cutting off current flow without creating arcing or shorting between a brush and collector ring or other moving conductive surface are presented as well.

Claims43

Dependent claims

A brush holder for holding a brush having a conductive element, the brush holder comprising:

a beam for holding the brush, the beam including a bottom edge;
a base member configured to couple to the beam, the base member having a bottom edge and a conductive segment;
wherein the beam is hingedly coupled to the base member such that, when the beam is in a first configuration relative to the base member, the conductive element is electrically coupled to the conductive segment, and, when the beam is in a second configuration relative to the base member, the conductive element is electrically isolated from the conductive segment.

Dependencies are inferred from the claim text.

Brush holder apparatus, brush assembly, and method

Life of this patent

Brush holder apparatus, brush assembly, and method

Life of this patent

Abstract

Claims43