Bosses and method for fastening same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
N/A
app pub date -
Jun 21, 2002
filing date -
Jun 21, 2001
priority date (Note) -
Abandoned
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Abstract
A boss for attaching to a manufactured hole in a pipe has a generally cylindrical hollow body, with an external surface and an internal surface, a first end and a second end. The second end has a smaller external diameter than a diameter of the external surface. The second end aligns with the hole, and has pointed protrusions, for concentrating a weld spark during welding. The external surface is stepped forming a larger diameter portion adjacent the first end and a smaller diameter portion adjacent the second end. The smaller diameter portion has a diameter larger than the diameter of the second end. Alternatively, the second end has a bevelled portion cooperating with a pointed end of the hole, or a skirt generally conforming to the profile of the pipe, the skirt having pointed protrusions, for concentrating a weld spark during welding.
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