Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having separate expander means – Having securing element projecting through aperture in sleeve
Patent
1998-09-23
2000-05-02
Saether, Flemming
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having separate expander means
Having securing element projecting through aperture in sleeve
411 571, F16B 1304
Patent
active
06056489&
ABSTRACT:
An expansion dowel including a cylindrical, at least regionwise expandable dowel body (2) having a plurality of axial slots (22) opening at a front, in a setting direction(s), end (24) of the dowel body, and a bore (21) which tapers in the setting direction(s) in a region of the axial slots (22); an expansion sleeve (4) arranged inside of the dowel body (2) and tapering in the setting direction(s), the expansion sleeve (4) having a conically tapering, in the setting direction(s), bore (44), a plurality of slots extending in an axial direction, and a plurality of projections (47) projecting from an outer surface (42) of the sleeve and adapted to displace in the axial slots (22) of the dowel body (2); and an expansion member 93) axially displaceable in the bore (21) of the dowel body.
REFERENCES:
patent: 929979 (1909-08-01), Pleister
patent: 1790841 (1931-02-01), Rosen
patent: 3014399 (1961-12-01), Schaffner
patent: 3279301 (1966-10-01), Fischer
patent: 4290338 (1981-09-01), Gruber
patent: 4673320 (1987-06-01), Froehlich
Hilti Aktiengesellschaft
Saether Flemming
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