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
Method and system for electronic distribution of product redemption coupons
Critical word forwarding with adaptive prediction
Persistent luminescence nanoparticles used in the form of a diagnosis agent for in vivo optical imaging
Stretchable elastic laminate having increased CD elongation zones and method of production
Production of battery grade materials via an oxalate method
Deposited conductive layers for leads of implantable electric stimulation systems and methods of making and using
Stevia formulation
  Randomly Featured Patents
Watch dial
Media content user interface systems and methods
Drive arrangement for a wiper device for windows of motor vehicles
Peep sight
Coated transfer member
Demodulator synchronization loop lock-in detection circuit
Dye-sensitized light-sensitive core/shell silver halide photographic material
Headlight for vehicle in accordance with projection principle
Method for operating a clutch and control device for implementing the method
Camouflage fabric