Resources Contact Us Home
Method of using metal conductive blanks for extending useful battery life

Image Number 5 for United States Patent #6074778.

A method of extending the useful life of one or more conventional DC batteries in a battery-powered device. The method involves use of at least one dry cell DC battery, at least one metal blank, and a battery-powered apparatus having a battery compartment and an extension housing. At least one dry cell DC battery is placed inside the battery compartment of the battery-powered apparatus. At least one metal blank is then placed in the extension housing for completing an electrical circuit between first and second contacts of the battery-powered device. Using a voltmeter, the voltage of one of the dry cell DC batteries is tested. If the voltage of the dry cell DC battery is below a threshold voltage level required for the battery-powered apparatus, at least one metal blank is then replaced with a partially-charged battery.

  Recently Added Patents
Tread portion of an automobile tire
Use of a high-oleic and high-tocol diet in combination with a non-tocol antioxidant for improving animal meat quality
Light-emitting device package and method of manufacturing the same
Vehicle location information-based abnormal driving determination and warning system
Using rule induction to identify emerging trends in unstructured text streams
Contactless electrical connector for an induction sensor, and sensor including such a connector
FET device having ultra-low on-resistance and low gate charge
  Randomly Featured Patents
Method and apparatus for controlling compressor capacity
Time counting circuit and counter circuit
Simulation circuit employing switched capacitors
Mechanism for generating pseudorandom number sequences
Ultrasonic calibration apparatus
Position calculation apparatus, storage medium storing position calculation program, game apparatus, and storage medium storing game program
Services using globally distributed infrastructure for secure content management
Stabilizer systems for ABS plastics and ABS alloys
Method of lighting a fire from a charcoal-containing fuel package