Patents by Inventor Panpop Makkun

Panpop Makkun 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).

  • Power apparatus with low energy consumption
    Patent number: 6462444
    Abstract: A power apparatus in which a battery is connected to a dynamo to drive it as a motor and deliver energy to a spiral spring to wind-up the spring. When the spring has been wound to a particular degree a sensor disconnects the motor from the spring which now unwinds and delivers output power. A further sensor detects low charge state of the battery and during unwinding of the spring, some spring energy is delivered to the dynamo, now acting as an alternator, to charge the battery.
    Type: Grant
    Filed: July 26, 2000
    Date of Patent: October 8, 2002
    Inventor: Panpop Makkun