E - Fixed Constructions – 04 – B
Patent
E - Fixed Constructions
04
B
85/23
E04B 1/49 (2006.01) F16B 13/00 (2006.01) F16B 13/04 (2006.01)
Patent
CA 1041326
SELF-DRILLING ONE-PIECE MASONRY ANCHOR Abstract of the Disclosure An expansion anchor device for use in masonry structure which is capable of drilling a hole in the structure and being set without the necessity of removal of the device from the hole. A drill tip portion with a conical upper region is interconnected to a generally cylindrical sleeve portion through a frangible wall. Helical flute grooves are formed on the outer surface of the sleeve to permit exhaust of drilled material from the hole.
266236
Ernst Richard J.
Williams Elbert E. (jr.)
LandOfFree
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