Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having separate expander means – Including sleeve and distinct tapered expander
Patent
1993-06-04
1994-05-24
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having separate expander means
Including sleeve and distinct tapered expander
411 55, 411 74, F16B 1306
Patent
active
053142780
ABSTRACT:
An expansible anchor for anchoring of an article to a component includes a shank having a portion of reduced cross-section at a front end, elements for fixing the article at a rear end, an adjoining expander cone at a rear end of the shank, and an expansible sleeve positioned over the shank portion of reduced cross-section and locking elements projecting beyond the diameter of the expansible sleeve. To allow the expander cone to enter the expansible sleeve for expansion of it even in the event the drilled hole becomes enlarged as a result of cracks being formed in its wall, the expansible sleeve is provided with a plurality of longitudinal slits so as to form expander arms. Each of the longitudinal slits extends over at least half the length of the expansible sleeve from a front end edge of the expansible sleeve and continues into an enlarged opening provided in the sleeve. The expansible sleeve also is provided with a plurality of notch-like indentations aligned with the slits and terminating at a distance from the enlarged openings to define a web whose length is advantageously chosen to facilitate spreading of the expansible sleeve.
REFERENCES:
patent: 4884931 (1989-12-01), Revol et al.
patent: 4904135 (1990-02-01), Barthomeuf et al.
patent: 4917552 (1990-04-01), Crawford
patent: 5176481 (1993-01-01), Schiefer
Befestigungstechnik, sbz 19/1989, p. 1428.
fischerwerke Artur Fischer GmbH & Co. KG
Striker Michael J.
Wilson Neill R.
LandOfFree
Expansible anchor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Expansible anchor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Expansible anchor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1968624