Patents by Inventor Philip P. Hutchings

Philip P. Hutchings 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).

  • Multi-level automotive battery charging system
    Patent number: 5444352
    Abstract: An electric charging control unit is used to control charging of a dual voltage battery of an automobile electrical system. The charging control unit is used in conjunction with a standard 12 volt alternator or 12 volt charger to efficiently recharge a lead acid battery having both 12 and 16 voltage terminals. The electric charging control unit continually monitors the different voltage levels of the battery. Charging of higher voltage cells by a DC to DC converter is selectively activated when the voltage of the lower cells rises above a pre-determined voltage level. Activation of the charging of the higher voltage cells is selectively overridden in response to the voltage differential of the input and output of the DC to DC converter which are respectively coupled to the 12 and 16 volt battery terminals.
    Type: Grant
    Filed: August 2, 1993
    Date of Patent: August 22, 1995
    Assignee: New Castle Battery Manufacturing Company
    Inventor: Philip P. Hutchings