Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having separate expander means – Relatively sliding wedge surfaces
Patent
1997-08-05
1999-10-12
Saether, Flemming
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having separate expander means
Relatively sliding wedge surfaces
411 75, 411 80, F16B 1304
Patent
active
059645580
ABSTRACT:
An expansion dowel including an expansion sleeve (2, 22) radially expandable upon being compressed and having a slot (5) extending along an entire axial length of the expansion sleeve (2, 22) and inclined toward an axis (A) of the expansion sleeve (2, 22), with a respective edge region (6, 7) of the slots extending beyond a respective end surface (8, 9) of the expansive sleeve (2, 22) in an unexpanded condition of the sleeve, and an arrangement (2, 52, 53; 51; 23, 24, 25, 26) for retaining the expansion sleeve (2, 22) in its axially compressed and radially expanded condition.
REFERENCES:
patent: 2104496 (1938-01-01), Schaefer
patent: 2648247 (1953-08-01), Schmuziger
patent: 3881393 (1975-05-01), Campbell
patent: 3951034 (1976-04-01), Chromy
patent: 4474515 (1984-10-01), Pitzer
patent: 4605350 (1986-08-01), Charter
European Search Report, Number EP 97 810 298.6 dated Aug. 26, 1997.
Hilti Aktiengesellschaft
Saether Flemming
LandOfFree
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