Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having separate expander means – Bulged by axially contracting ends
Patent
1984-10-19
1986-01-07
Dorner, Kenneth J.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having separate expander means
Bulged by axially contracting ends
411 71, F16B 1304
Patent
active
045631182
ABSTRACT:
An expanding means for removable fastening in a cylindrical hole, consisting of an elastic cylinder, which is caused by axial contraction to radially expand and with the outer surface to engage with the cylindrical hole, which cylinder is formed with a plurality of bars, which extend substantially in the axial direction of the cylinder from grooves running in the direction of the bars in the outer surface of the cylinder and radially outwardly outside the outer surface to frictionally grip the inside of the cylindrical hole so that the elastic cylinder is prevented from rotating during contraction.
REFERENCES:
patent: 829892 (1906-08-01), Rieflin
patent: 2120577 (1938-06-01), Schulte
patent: 2456480 (1948-12-01), Austin
patent: 2542967 (1951-02-01), Waechter
patent: 3504498 (1970-04-01), Triplett
patent: 3651651 (1972-03-01), Triplett
patent: 4108043 (1978-08-01), Varga
patent: 4360301 (1982-11-01), Mosberger
Dorner Kenneth J.
Whitcomb, Jr. Adrian H.
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