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
Apparatus and method for transmitting and receiving data
Composite high reflectivity layer
Database caching utilizing asynchronous log-based replication
Bottle
Communication terminal device, communication system, and communication control method
Electron-beam lithography method with correction of line ends by insertion of contrast patterns
Power collecting device, power measuring device, and power collecting method
  Randomly Featured Patents
Applying various hash methods used in conjunction with a query with a group by clause
Liquid crystal display device
Naphthalene-based semiconductor materials and methods of preparing and use thereof
Current-stroke proportional type solenoid valve
Mounting and fixing structure of a handle and a tool head of a hand tool
Laminated variable resistor
Ink cartridge
Polycarbonate composition
Parallel access alignment network with barrel switch implementation for d-ordered vector elements
Cap configured to removably connect to an insulation displacement connector block