WELDING APPARATUS
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United States of America Patent
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-
N/A
Issued Date -
Mar 3, 2011
app pub date -
Feb 6, 2009
filing date -
Feb 13, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A welding apparatus (24) is adapted to be mounted on a guide ring, the welding apparatus comprising a housing (25), a pair of rollers (29, 31) mounted on each side of the housing, said pair of rollers comprising a first roller (29) having a tubular outer surface and a second roller (31) having a conical outer surface, the pairs of rollers being mountable on either side of a guide ring such that an edge of the guide ring passes between each pair of rollers, the conical roller (31) on one side of the housing being laterally movable within the housing (25). The guide ring (1) comprises two arcuate components (2) connected by a flexible hinge (11), and has a removable gear rack (6). A plurality of resilient spaces (8) are mounted on the inner surface of the guide ring (1).
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