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
Fluid pressure responsive electric switch
Integrated projector system
Methods and apparatuses for anti-shading correction with extended color correlated temperature dependency
Lens barrel and imaging device
Active element machine computation
Polymers derived from benzobis(silolothiophene) and their use as organic semiconductors
Credit flow control scheme in a router with flexible link widths utilizing minimal storage
  Randomly Featured Patents
Information processing device and recovery method thereof
Filter drier and method of filtering a fluid stream
Methods for sampling and testing data centers for metallic particulates
Absorbent structure with superabsorbent material
Banking machine controlled responsive to data read from data bearing records
Acoustic sealing analysis system
Combined cup and plate holder
3,9-diazaspiro[5,5]undecane amides and ureas and methods of use thereof
Game machine, and display