Patent ID: 8142128
Filing Date: 2012-03-27
Classification: F16B

Abstract:
1. An anchor for fastening to a fibrous or pierceable substrate comprising: a base with a spaced pair of bores, each of the bores having an axis; a pair of hubs rotatably mounted in said pair of bores, the pair of hubs being movable in a direction along the axis of the bores between a retracted and a deployed position, each of said pair of hubs having on one side thereof a plurality of spiral prongs, the spiral prongs on a first one of the hubs spiraling away from the first one of the hubs in a first direction, the spiral prongs on a second one of said hubs spiraling away from the second one of said hubs in a second, direction, the first direction being the opposite of the second direction said hubs when in said deployed position projecting said plurality of prongs beyond said base; and a thrust member mounted over said pair of hubs to move toward and away from said pair of hubs, said thrust member being movable into contact with said pair of hubs to move them from said retracted to said deployed position.