Integral box section boom arm
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 7, 1981
Grant Date -
N/A
app pub date -
Oct 12, 1978
filing date -
Oct 12, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A boom arm of a boom assembly is formed of a pair of side walls integrated into a box boom structure where the top and bottom plates are roll formed with transition edges providing a weld bed for welds attaching the side walls to the top and bottom plates. The particular cross sections of the top and bottom plates provide a weld blow-through preventing barrier and also dimensional guidance and tolerance control during assembly of the boom arm.
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