(under subclass 25) Device, whose applicator is moved or guided, during fusion either in a closed-loop path or along a portion of a planar, closed-loop path, which portion is curved through-out its length.
(1) Note. Included in this and the indented subclasses are patents disclosing orbital applicator movement and mutual engagement of the applicator and work at a tangential point or line.
(2) Note. The movements known as "rotating", "revolving", or "orbital" are all considered as having a "closed-loop path".
