Expansible plug having an expander body

Details Expansible plug having an expander body Expansible plug having an expander body

1993-03-02

1994-05-24

Lindsey, Rodney M.

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

Having separate expander means

Including sleeve and distinct tapered expander

411 44, F16B 1306

Patent

active

053142772

ABSTRACT:
The expansible plug has an expander body at one end of a plug shank and an expansible sleeve which slids over the expander plug in operation. A sliding ring is often provided between the expander body and the expansible sleeve to improve the sliding properties of the expansible sleeve over the expander plug. To prevent slippage of the sliding ring off the expander plug, the sliding ring can be provided with an interlocking inner profile which engages in an outer thread or a plurality of annular steps on the outer surface of the expander body. The expansible plug can be used to attach objects to a masonry wall by inserting the expansible plug into a drilled blind hole with the expander body at the base of the hole and a fixing means which may include a threaded portion on the shank protruding from the hole.

REFERENCES:
patent: 2685221 (1954-08-01), Barrett
patent: 4287807 (1981-09-01), Pacharis et al.
patent: 4309138 (1982-01-01), Jarman et al.
patent: 4656806 (1987-04-01), Leibhard
patent: 4986711 (1991-01-01), Fischer

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