Patents by Inventor Darrell Lee Miller

Darrell Lee Miller 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).

  • Jack bit for actuating scissor jacks on trailers
    Patent number: 6526850
    Abstract: This invention relates to an improved jack bit comprised of a tubular jack actuator for driving a scissor or screw type jack and a shaft having a curved latch end engaged within the jack actuator for effecting rotation of the jack actuator. The improvement resides in a centering barrel slidably carried on the shaft and within the jack actuator whereby on rotation of the shaft by a power driver, the centering barrel provides for smooth and continuous transfer of energy of the shaft engaged with the jack actuator.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: March 4, 2003
    Inventor: Darrell Lee Miller