Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having separate expander means – Including sleeve and distinct tapered expander
Reexamination Certificate
2005-01-25
2005-01-25
Miller, William L. (Department: 3677)
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having separate expander means
Including sleeve and distinct tapered expander
C411S055000
Reexamination Certificate
active
06846141
ABSTRACT:
The invention relates to an expansible anchor (10) for anchoring in a cylindrical drilled hole (40). The invention proposes constructing the expansible anchor (10) with a tubular basic anchor part (12), on which a hollow conical expansion portion (22) is formed by means of a forming procedure, on which expansion portion (22) an expansion sleeve (14) bent out of sheet metal is mounted. As a result of axial displacement of the expansion sleeve (14) on the expansion portion (22), the expansible anchor (10) becomes anchored in the drilled hole (40). The expansible anchor (10) exhibits subsequent expansion behaviour in the event of widening of the drilled hole (40), for example as a consequence of crack formation.
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Heinzelmann Werner
Mallee Rainer
fischerwerke Artur Fischer GmbH & Co. KG
Miller William L.
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