Anchor bolt with mechanical keys deployed by internal pressuriza

Details Anchor bolt with mechanical keys deployed by internal pressuriza Anchor bolt with mechanical keys deployed by internal pressuriza

1983-03-16

1985-04-16

Holko, Thomas J.

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

Having separate expander means

Fluent pressure actuated

411 21, 411 82, 411440, 405259, F16B 1304, B23P 1900

Patent

active

045112967

ABSTRACT:
In order to provide an anchor site in a matrix of solid material which has an accessible face, a socket is formed in the material through the accessible face. A shaft such as an anchor bolt is inserted in the socket, leaving an accessible emergent outer end portion. Via the outer end, explosive force is introduced to or generated in a central cavity of the shaft, which explosive force dislodges and deploys radially essentially outwardly at least one key at at least one level within the socket. Various ways for producing the explosive force are described.

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