Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having separate expander means – Including sleeve and distinct tapered expander
Patent
1985-12-12
1987-01-13
Friedman, Carl D.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having separate expander means
Including sleeve and distinct tapered expander
411 54, 411 55, F16B 1306
Patent
active
046361227
ABSTRACT:
A device is provided which can join pre-drilled substrates such as panels, and can establish a threaded attachment post securely anchored to a substrate. The device is comprised of a hollow sleeve, and an internal rotatable core. When the device is inserted into a hole, and the core is rotated relative to the sleeve, prongs in the inserted extremity of the sleeve are forced into tight engagement with the hole. The opposite, uninserted extremity of the sleeve is provided with external threading, useful for general mounting purposes.
REFERENCES:
patent: 1381428 (1921-06-01), Peelle
patent: 2309122 (1943-01-01), Keenan
patent: 2381050 (1945-08-01), Hardinge
patent: 4263833 (1981-04-01), Loudin
patent: 4330230 (1982-05-01), Giannuzzi
patent: 4560312 (1985-12-01), Grady
Friedman Carl D.
Pedersen Dan W.
Rainer Norman B.
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