Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Illumination apparatus for microlithography projection system including polarization-modulating optical element
Frame syncrhonization in orthogonal frequency-division multiplexing systems
Apparatus and method for foreground detection
Semiconductor apparatus
Apparatus and method of preventing signal delay in display device
Method for fabricating a nitrided silicon-oxide gate dielectric
Inter-carrier communications for multimedia-message delivery
  Randomly Featured Patents
Production device for carbon fibers and production method therefor
Motorized outrigger drive
Double-purpose earlobe ornaments usable as stud and earring
Tar-free gasification system and process
Method and system of fluid analysis and control in hydrocarbon well
Multiple-master digital communication technique utilizing a dedicated contention bus
Manual dispenser and note paper roll
Pyridyl N-oxides
Film handling apparatus for a multipass photographic film scanner and printer
Spin coating of electrolytes