Patent Number: 6,296,433

Title: Large diameter tapcon with debris reservoir end or tip

Abstract: A masonry anchor is provided with a reaming portion which includes recessed portions for defining reservoir regions for accumulating debris generated by the reaming operation when the anchor is installed within a masonry structure. The accumulation of the debris within the reservoir regions reduces torsional friction and installation torque characteristic of the anchor installation operation. Masonry anchors which are self-tapping or self-threading and which do not have reaming portions operatively associated therewith can also have such recessed reservoir structure defined thereon for such similar dust and debris accumulation and discharge purposes.

Inventors: Forsell; David (Carol Stream, IL), Ernst; Richard J. (San Diego, CA)

Assignee: Illinois Tool Works Inc.

International Classification: F16B 25/00 (20060101); F16B 35/04 (20060101); F16B 025/00 (); F16B 035/04 ()

Expiration Date: 10/02/2018