Expanding plug and a method to manufacture same

Details Expanding plug and a method to manufacture same Expanding plug and a method to manufacture same

1990-10-02

1992-02-04

Lindsey, Rodney M.

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

Having separate expander means

Made up of plural expansible segments or sections

411 75, F16B 1304

Patent

active

050855441

ABSTRACT:
An expanding plug comprises an expanding sleeve made in one piece and provided with a continuous longitudinal slot, an expanding body arranged in the expanding sleeve, and a screw engaging with a thread in the expanding body and bearing with its head against a rim of the expanding sleeve. On its external wall the expanding body is provided with several expanding surfaces one arranged behind the other in longitudinal direction, which bear against associated inclined surfaces on the internal surface of the expanding sleeve. For the purpose of creating an embodiment particularly simple in design and manufacture, the inclined surfaces are provided on the projections of the expanding sleeve directed radially inwards and engaging with recesses of the expanding body 2 limiting the expanding surfaces.

REFERENCES:
patent: 2241343 (1941-05-01), Fleaca
patent: 4475856 (1984-10-01), Toomingas
patent: 4523881 (1985-06-01), Ringe

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