Patents by Inventor Kenju Tetaka

Kenju Tetaka 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).

  • Apparatus for adjusting gaps between a plurality of members disposed in a line and tobacco thresher adopting the same
    Patent number: 4805643
    Abstract: A tobacco threshing system of the present invention comprises a housing, a threshing rotor arranged in the housing, and a threshing basket which covers a lower portion of the rotor. The threshing basket includes a plurality of arcuated plates arranged to have threshing gaps therebetween. The tobacco threshing system further comprises an apparatus for adjusting the threshing gaps. The apparatus includes a drive shaft, a plurality of first sliders mounted on the drive shaft, and a plurality of second sliders mounted on the drive shaft to be located between the first sliders. Each of the first sliders has a first right-handed thread portion on one end thereof and a left-handed thread portion on the other end thereof. Each of the second sliders has, on its two ends, second right- and left-handed thread portions to be screwed to the first right- and left-handed thread portions of the adjacent first sliders. The arcuated plates are connected to the first sliders and/or second sliders.
    Type: Grant
    Filed: March 7, 1988
    Date of Patent: February 21, 1989
    Assignee: Japan Tobacco Inc.
    Inventor: Kenju Tetaka