Patents by Inventor Merle R. Aiken

Merle R. Aiken has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Battery charging circuit including a current limiter which compares a reference current to a charging current to ensure operation of a load
    Patent number: 5786682
    Abstract: In a system including a power supply, such as a rectifier, which supplies power to a load and in which a back-up battery is arranged between the power supply and load, a current controller is configured to control the recharging current supplied to the back-up battery. The current controller includes a variable resistance which is altered dependent upon whether more or less current is to be used for recharging of the back-up battery. The use of the current controller ensures that sufficient current is available for the load during the recharging process, even in a situation where the back-up battery requires a high level of recharging.
    Type: Grant
    Filed: August 7, 1996
    Date of Patent: July 28, 1998
    Assignee: Reltec Corporation
    Inventors: Merle R. Aiken, Brian D. Goodlive, James A. Giancaterino