Patents Examined by Norman Stack
  • Patent number: 4225175
    Abstract: Arrangement for covering a chip transport box including a cover which is adapted to be rolled up on and unrolled from a shaft and a swinging arm provided at each of two opposite walls of the chip transport box whereby one end of the swinging arm is pivotally journalled at the respective wall and at least one piston and cylinder unit connected to at least one of the swinging arms and to said wall for swinging the swinging arms and for extending the cover across the chip transport box from one side thereof to the other.
    Type: Grant
    Filed: January 29, 1979
    Date of Patent: September 30, 1980
    Inventor: Sture Fredin