Expansion dowel assembly

F - Mech Eng,Light,Heat,Weapons – 16 – B

Patent

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85/30

F16B 13/12 (2006.01) F16B 13/06 (2006.01) F16B 13/08 (2006.01) F16B 13/00 (2006.01)

Patent

CA 1237005

ABSTRACT OF THE DISCLOSURE An expansion dowel assembly includes an axially extending dowel and an expansion member. In the expansion step, the expansion member is axially displaced over a surface on the dowel to provide form-locking enlargement of the dowel assembly within a borehole. The surface of the dowel, over which the expansion member is displaced. is made up of two serially arranged frusto-conical surface sections. Each surface section is disposed at a different acute angle to the dowel axis.

443097

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