Removable rivet and method of removing the head from the shank of the rivet
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Sep 3, 1996
Grant Date -
N/A
app pub date -
Apr 11, 1995
filing date -
Apr 12, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A removable rivet which includes a shank and a preformed head located at at least one end of the shank, the shank being insertable through workpieces and being capable of being permanently deformed to rivet the workpieces together. The rivet includes an annular groove at the junction of the shank and the head, the annular groove extending radially inwardly of the diameter of the shank, thereby to facilitate separation of the head from the shank when a drill of diameter substantially equal to that of the shank is applied to the head of an installed rivet co-axially with the shank until the drill meets the annular groove; an annular rim carried by the head of the rivet for cooperating with a drill, thereby to locate the drill co-axially with the annular groove; and abutment faces carried by the head of the rivet for engaging dogs of a non-rotating sleeve of the drilling apparatus thereby to prevent rotation of the rivet under the influence of the rotating drill.
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