Abstract: Systems and methods are provided for controlling two or more linear generators each operating according to a repeated behavior to constitute a cycle. A control system utilizes control circuitry to determine a desired phase offset between operation cycles of a first linear generator and a second linear generator of the two or more linear generators. During operation, an actual phase offset between the first linear generator and the second linear generator is determined. The control circuitry of the control system is used to modify the operation of at least one of the first linear generator or the second linear generator to achieve the desired phase effect.

Abstract: A tooth loosening device comprises a body having a tooth contacting portion connected to a handling portion. The tooth contacting portion has a tooth contacting member including one or more surfaces adapted to contact a tooth, and the handling portion includes a manipulation member. The tooth contacting portion can be inserted into a mouth having a tooth in need of loosening, and the manipulation member can position the tooth contacting member so that the one or more surfaces contacts the tooth in need of loosening. The tooth in need of loosening can then be loosened by manipulation of the tooth loosening device. A vibrating mechanism can also be provided to apply vibration to the tooth in need of loosening.

Abstract: A tooth loosening device comprises a body having a tooth contacting portion connected to a handling portion. The tooth contacting portion has a tooth contacting member including one or more surfaces adapted to contact a tooth, and the handling portion includes a manipulation member. The tooth contacting portion can be inserted into a mouth having a tooth in need of loosening, and the manipulation member can position the tooth contacting member so that the one or more surfaces contacts the tooth in need of loosening. The tooth in need of loosening can then be loosened by manipulation of the tooth loosening device. A vibrating mechanism can also be provided to apply vibration to the tooth in need of loosening.