Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having separate expander means – Made up of plural expansible segments or sections
Patent
1984-08-22
1986-04-01
Holko, Thomas J.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having separate expander means
Made up of plural expansible segments or sections
411 45, 411 55, 411 79, 405259, F16B 1304
Patent
active
045794901
ABSTRACT:
An expansion dowel assembly includes an anchor bolt and an expansion element made up of at least two expansion element parts offset from one another in the axial and circumferential direction when mounted on the anchor bolt. A web interconnects the adjacent expansion element parts. Recesses are formed in the circumferential surface of the anchor bolt for receiving the expansion element parts. Another recess connects the recesses for the expansion elements parts and is arranged to receive the web interconnecting these parts. The expansion element parts encircle the anchor bolt by more than half of its circumference so that holders are not needed for securing the expansion element on the anchor bolt.
REFERENCES:
patent: 1033447 (1912-07-01), Mower
patent: 3427919 (1969-02-01), Lerich
patent: 4205587 (1980-06-01), Van der Lugt
Hilti Aktiengesellschaft
Holko Thomas J.
Wilson Neill
LandOfFree
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