Patent ID: 7959379
Filing Date: 2011-06-14
Classification: E21D,F16B

Abstract:
1. A bolt anchor comprising: a body comprising an axial bore and threads disposed therein, the body terminating at opposing ends, said opposing ends being a first, larger end, and a second, smaller end; at least one stop depending from said body from near said second end, said at least one stop comprising at least one radial projection from said body, said at least one radial projection extending from said body to a height greater than the inner circumference of said sleeve but no greater than the outer surface of said first end of said body; a deformable sleeve receiving and engaging said second end of said body, said sleeve comprising a plurality of leaves parallel to the axis of said sleeve, said sleeve having an inner circumference and an outer circumference, at least two adjacent said leaves of said sleeve having a gap between them sufficient to accommodate said at least one stop, said sleeve having at least one said gap per each said stop; wherein said at least one stop maintains said body and said sleeve in engagement.