Patent ID: 7148776
Filing Date: 2006-12-12
Classification: B25B,H01F,Y10T

Abstract:
1. An electromagnetic clamp for a structure comprising: an electromagnet comprising: a coil that defines a longitudinal aperture extending at least partially through the coil, wherein said electromagnet is energized by transmitting an electric current through the coil; and a core within the longitudinal aperture defined by the coil; and a clamping piece separated from said electromagnet by a distance for receiving the structure therebetween, such that said clamping piece and said electromagnet exert a compressive force on the structure when the coil is energized, wherein the core of said electromagnet comprises a lateral dimension, and wherein a smallest lateral dimension of the core is greater than the distance between said clamping piece and said electromagnet, and wherein the core has at least one of a higher permeability or a higher saturation flux density than said clamping piece.