Hi I have a one touch electric can opener (that no longer works). How it (used to) work:
-Place on a can
-Press switch (momentary) From there on it turned and cut off the top of the can and stopped when finished. I curious about how it worked. Specfically: How does the momentary switch "latch" or stay closed. (There aren't any electronic ics). Batteries then turn gears till the cutting is completed. Somehow a gear (I think) breaks the circuit and opearations is ended. The entire circuit is 2 AA batteries (3 volts), a motor, gears and switches. No electronics or digital logic. Thanks BobP