Anchor
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 3, 1987
Grant Date -
N/A
app pub date -
Jun 3, 1985
filing date -
Jun 1, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An anchor for fastening in bore holes comprises an expander body driven into an expansion sleeve, having a slotted expansible portion, by a stay bolt to which a torque is applied to draw the expander body into the expansion sleeve. The expander body has at its trailing end a conical portion which merges into a concavely-curved portion. The angle of the concavity of the curved portion at the leading end of the expander body corresponds to a double angle of inclination of the conical portion to the central axis of the anchor.
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