Fastening element

Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having separate expander means – Including sleeve and distinct tapered expander

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Details

248 71, F16B 1306

Patent

active

043700829

ABSTRACT:
A fastening element to be used with a fastener, such as a screw, comprising a longitudinally slotted conical sleeve of an at least slightly resilient material, said sleeve being sized to be held by friction fit in a hole, wherein the screw is to be inserted.

REFERENCES:
patent: 713027 (1902-11-01), Weaver
patent: 728144 (1903-05-01), Tribe
patent: 987229 (1911-03-01), Haywood
patent: 1434806 (1922-11-01), Brown
patent: 1960046 (1934-05-01), Beal
patent: 2240425 (1941-04-01), Sternbergh
patent: 2400142 (1946-05-01), Tinnerman
patent: 3503802 (1970-03-01), Galbato

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