Abstract: A switched power circuit selectively connects an electrical load to any one of a plurality of branch power circuits. The switched power circuit includes a sensing circuit for sensing electrical loading on each of the branch circuits. A logic circuit is coupled to the sensing circuit for selecting one of the branch circuits to be connected to the load according to the sensed loading to provide balanced loading on each branch circuit.

Abstract: A swab, and a substance to be applied thereby, are contained within a sleeve which can readily be opened by use of manual force. The sleeve provides a handle portion that conforms closely to that of the swab stick, thus offering a secure and natural grip for manipulation of the swab while, at the same time, minimizing the amount of the contained substance that can seep along the length of stick, and an element of the sleeve that remains after opening of the unit also serves a protective function. Because of the form of the sleeve it is easy and inexpensive to fabricate as a fully functional article, using only an internal mold member, and it lends itself to facile assembly with the swab.