Abstract: An indicator of battery charge is disclosed which is incorporated into a battery to allow persons possessing knowledge of remaining battery capacity to easily modify tactile and visual characteristics of said battery as an indication of remaining charge. Said characteristics are, but not limited to, coatings, attachments for removal and devices, which can be altered in form.

Abstract: A latch/switch mechanism is attached to and operative for inserting and securing circuit modules into a housing while at the same time creating differing electrical connections during the insertion process. The latch/switch mechanism includes a latch lever with a cam and also included means to engage a support housing such as a notch or clip in the lever. The cam portion sequentially engages a plurality of conductive leaf springs and as the lever is rotated, the cam forces the making and breaking of certain connections of the conductive leaf springs to effect the various desired circuit connections and disconnections.

Abstract: Method and apparatus for providing an indication of when the web material remaining on the supply spool has been depleted to a predetermined amount, such as the end portion. An end portion of the web material is coupled to the supply spool hub and a predetermined amount of the web material is wound onto the spool in a first direction. The web material is then folded back onto itself and the remaining amount of web material to be placed on the supply spool is wound onto the spool in a second and opposite direction. As the web material is removed from the supply spool, the supply spool hub and/or the shaft for the supply spool will reverse direction of rotation upon reaching the portion of the web material, which has been folded back onto itself. Also, the angle and point of departure of the web material from the supply spool hub will change.