Metal working – Method of mechanical manufacture – Assembling or joining
Reexamination Certificate
2011-08-09
2011-08-09
Chang, Richard (Department: 3726)
Metal working
Method of mechanical manufacture
Assembling or joining
C029S428000, C029S429000, C104S284000, C104S281000, C104S285000, C180S009100, C180S009500, C244S050000, C305S185000, C414S749200
Reexamination Certificate
active
07992278
ABSTRACT:
A method of operating a production line comprises the steps of supporting equipment in the production line on a plurality of crawlers comprising at least one rolling track and a structural support for supporting the equipment. A first plurality of lifting magnets coupled to an interior surface of said at least one rolling track is configured to oppose a second plurality of lifting magnets coupled to an exterior surface of said structure support to lift the structural support, such that the structural support floats between and within said at least one rolling track. The magnetic fields experienced by the first and second plurality of lift magnets are adjusted to translate the at least one rolling track, such that the crawlers move along the production line.
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