Device for setting anchors

Details Device for setting anchors Device for setting anchors

1990-10-31

1992-10-06

Wilson, Neill R.

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

Having separate expander means

Including sleeve and distinct tapered expander

411 14, 411432, 411917, 4052594, 29256, F16B 1306, F16B 3708, B23P 1902

Patent

active

051526492

ABSTRACT:
A device for setting an anchor rod (3) in a borehole includes a housing (4) and a socket (5). The socket (5) is made up of a sleeve (6) and a liner (7). The sleeve (6) is rotatable relative to the housing (4) and the liner (7). The liner (7) is in threaded engagement with the anchor rod (3) by a standard thread and with the sleeve (6) by a fine pitch thread (6c). Due to the fine pitch thread engagement of the sleeve (6) and the liner (7), by rotating the sleeve (6), which remains axially stationary, the liner (7) and the anchor rod (3) are moved axially with the anchor and also moving axially relative to an expansion sleeve (2) so that the expansion sleeve (2) is expanded into an undercut in the borehole.

REFERENCES:
patent: 2571265 (1951-10-01), Leufven
patent: 3120700 (1964-02-01), Chuplis, Jr.
patent: 4085649 (1978-04-01), Christensson
patent: 4899431 (1990-02-01), Borntrager

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