Method and an apparatus for making an elongate object
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 20, 1996
Grant Date -
N/A
app pub date -
Oct 14, 1994
filing date -
Mar 3, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a method of making an elongate object (49) with a head at one end and a point at the other end, a blank (49) is placed in a die (50) having a through-going channel, following which the head end is subjected to axial pressure by a tool (52), while a stop member (55) is kept engaged with the die (50) at its other end. A pre-formed head is initially provided on the blank (49) so that the head has an excess of material with respect to the size of the final head. A cavity (56) is formed in the stop member and is in extension of the through channel. When blank (49) is subjected to axial pressure the tool (52) causes flow of material in the shank of the blank (49) so that blank material flows into the cavity (56) of the stop member.
First Claim
Other Claims data not available