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

Image Number 4 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
Light-emitting device package and method of manufacturing the same
Multiple-frequency inversion method and control apparatus for internal combustion engine driven generator
Communication device and method for detecting a radio signal
Electronic system with vertical intermetallic compound
Optical packet signal transmission device and WDM optical communication network
Writing implement
Pixel structure of a solid-state image sensor employing a charge sorting method
  Randomly Featured Patents
Gasoline station installation
Electrostatic transducer with nonplanar configured diaphragm
Load balancing method and system using multiple load balancing servers
Process condition sensing wafer and data analysis system
Method for modifying navigation information
Molten carbonate fuel cell and method for production thereof
Attachments enabling vehicles to negotiate obstacles
Water-based hydraulic fluids having improved lubricity and corrosion inhibiting properties
Toy car with a parachute