Patent ID: 6821049
Filing Date: 2004-11-23
Classification: E04H,Y10T

Abstract:
An attachment device for attaching a support post to a floor having a top, a bottom, and a floor opening between the top and the bottom, the attachment device comprising:a floor locking nut configured to be movably supported at the bottom of the floor to engage a protrusion of the support post extending through the floor opening, the floor locking nut including a nut bearing surface disposed adjacent a nut aperture and facing downward from the bottom of the floor, the nut bearing surface including an inclined surface leading to a raised surface which is raised with respect to the bottom of the floor, the floor locking nut being movable relative to the protrusion to change contact from a first contact position between the inclined surface and the protrusion to a second contact position between the raised surface and the protrusion.