Cone expansion wall plug

Details Cone expansion wall plug Cone expansion wall plug

1986-05-14

1989-08-08

Wilson, Neill

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Having separate expander means

Including sleeve and distinct tapered expander

411 39, 411 55, 411 60, 411 74, F16B 1306

Patent

active

048547930

ABSTRACT:
A cone expansion wall plug is provided comprising a threaded rod, an expansible socket, an expansion cone, an intermediate ring and a spacer between the head of the rod and said intermediate ring. During expansion and anchorage of the socket by the cone, the ring and the spacer prevent movement of the socket with respect to the rod. After anchorage, the rod may be screwed into the cone by shearing a collar of the spacer. During expansion, the socket only bears against the intermediate ring through a radial shoulder.

REFERENCES:
patent: 942693 (1909-12-01), Wintermute
patent: 4015505 (1977-04-01), Murray
patent: 4516885 (1985-05-01), Calandra

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