Expanding plug

Details Expanding plug Expanding plug

1991-05-10

1992-05-12

Lindsey, Rodney M.

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

Having separate expander means

Including sleeve and distinct tapered expander

411 55, F16B 1306

Patent

active

051121743

ABSTRACT:
An expanding plug in usual manner comprises an expanding sleeve, an expanding screw and an expanding cone which serves to expand the expanding sleeve and which can be pulled into the expanding sleeve by means of the expanding screw. So as to reduce the material need for the expanding cone and the manufacturing expenditure, the expanding cone is bent from sheet. Its edges of its wall limiting a joint gap are positively connected with each other by means of an interlocking in the direction of the central longitudinal axis and tangentially to the latter or by welding.

REFERENCES:
patent: 777399 (1904-12-01), Church
patent: 1041953 (1912-10-01), Bennett
patent: 1101302 (1914-06-01), Masor
patent: 1365945 (1921-01-01), Ogden
patent: 1434394 (1922-11-01), Matthes
patent: 4390042 (1983-06-01), Kucherer et al.
patent: 4602902 (1986-07-01), Herb

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