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
Imaging apparatus having selection unit to select focus detection areas
System and method for determining a characterisitic of an object adjacent to a route
System and method for terminating communication sessions with roaming mobile devices
Adaptive switch mode LED system
Feature management of a communication device
Medicament delivery device and a method of medicament delivery
Multi user MIMO detection utilizing averaged spatial whitening
  Randomly Featured Patents
Method and apparatus for attaching a personal electronic device
Preparation method for lead-titanium based thin film
Encoding apparatus, encoding method, and computer product
Bifurcated oil scavenging bearing compartment within a gas turbine engine
Locking pin assembly for locking dog housing
Faucet with pull-out spray
Telephone apparatus
Continuous treating system for wide cloth
Soft sculpture doll
Polarized electromagnetic relay