Anchor with spreading elements

Details Anchor with spreading elements Anchor with spreading elements

1999-08-17

2000-12-26

Wilson, Neill

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

Having separate expander means

Bulged by axially contracting ends

411 32, 411 59, 411 602, F16B 1304, F16B 1306

Patent

active

061648841

ABSTRACT:
The novel anchor has a neck portion formed with an opening for inserting a screw into the anchor, a head portion formed with an annular, circumferentially closed collar, and spreading elements connecting the neck portion with the head portion. Radially extending longitudinal webs connect the spreading element with the collar and they space the collar from the spreading elements.

REFERENCES:
patent: 3735665 (1973-05-01), Mortensen
patent: 5205688 (1993-04-01), Sundstrom
patent: 5312215 (1994-05-01), Anquetin

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