Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having separate expander means – Oppositely acting double wedge expander means
Patent
1988-09-12
1990-05-01
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having separate expander means
Oppositely acting double wedge expander means
411 32, F16B 1304
Patent
active
049213814
ABSTRACT:
An expansion dowel assembly includes an axially elongated expansion member, a first member for expanding the expansion member and a second member for anchoring the expansion member in a borehole before is is expanded by the first member. The second member can be connected to the expansion member or mounted in and in contact with the expansion member.
REFERENCES:
patent: 710534 (1902-10-01), Steward
patent: 925006 (1909-06-01), Mason
Breuss Manfred
Gschwend Peter
Hilti Aktiengesellschaft
Wilson Neill R.
LandOfFree
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