Patents by Inventor Clarence Hallett

Clarence Hallett 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).

  • Reaction containment drive for power tool
    Patent number: 5136197
    Abstract: A reaction containment drive apparatus for a power tool includes a motor having an outside case free to rotate within the tool casing, and an internal drive shaft. A planetary gear set is an integral portion of the drive. It has three parts, namely, a central sun gear part, a middle planet gear part (the planet gear part having a planet carrier and preferably three planet gears on the planet carrier), and an outside ring gear part coaxial with the sun gear part and the planet carrier. The planet gear part is rotatable between the sun gear part and the ring gear part.
    Type: Grant
    Filed: June 25, 1991
    Date of Patent: August 4, 1992
    Inventor: Clarence Hallett