Simultaneous butt and lap joints
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United States of America Patent
Stats
-
N/A
Issued Date -
Aug 1, 2002
app pub date -
Mar 20, 2002
filing date -
Jul 10, 1998
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A method for production of simultaneous lap and butt joints directs electromagnetic radiation (12) through a radiation transmitting material coupling (40) having an absorbing material (44) formed as a portion of coupling (40) that absorbs radiation (12) with the generation of heat. The heat provides sufficient molten material in interfaces (50a, 50b, and 50c) to fuse and bond: 1) pipe ends (14, 24) to each other in a butt joint (22), 2) pipe end portion (16) to sleeve (40) in a lap joint (28a), and 3) pipe end portion (26) to sleeve (40) in a lap joint (28b). A coupling (40) is preformed with integral or surface applied radiation absorbing material (44) to provide rapid joint assembly and consistent weld production.
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Cited Art Landscape
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