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Trailer shield assembly for a welding torchThis invention relates generally to trailer shields for gas shielded arc welding torches, and more particularly to a trailer shield assembly provided with a shield gas manifold for providing an even dispersion of shield gas to the interior of the shield assembly, which generally encloses a joint being welded and a welding trailing portion of hot welded metal. The novelty of the invention lies in providing trailer shield with a manifold tube having a plurality of openings from which shield gas is distributed. A gas manifold region ahead of the torch is also provided with shield gas from a tube to protect metal preheated by the torch. Further novelty lies in constructing portions of sides and housing and portions of side walls of the guide of stainless steel screen having a tight mesh.
Document ID
19900010286
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Dyer, Gerald E. (Rockwell International Corp. Huntsville, AL., United States)
Date Acquired
August 14, 2013
Publication Date
June 13, 1989
Subject Category
Mechanical Engineering
Accession Number
90N19602
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-MFS-29260-1|US-PATENT-4,839,489
Patent Application
US-PATENT-APPL-SN-156059

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