Patents by Inventor Edwin R. Pretsch

Edwin R. Pretsch 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).

  • Patent number: 4150742
    Abstract: An apparatus is provided for transferring packs of elongated flat bars in a direction normal to their length. The apparatus includes a first and second set of stationary arms, which are interleaved, and which all extend in the same direction. Both sets of arms are notched at their upper edges and means are provided to move one set of arms in a closed loop. Movable arms each have a modified notch at the downstream end with respect to flat bar travel, and this modified notch includes a dog member on at least some of the movable arms, the dog member defining a notch and pivoted to its respective arm adjacent the apex of the notch. The dog member is counterbalanced to retain the dog member with its notch oriented the same as the other notches of the arm so long as no flat bars are supported in the notch, but to allow the dog member to pivot when a pack of flat bars is supported in the dog member notch, the pivoting causing the bars to lean in the direction opposite the direction in which the flat bars are moving.
    Type: Grant
    Filed: January 11, 1978
    Date of Patent: April 24, 1979
    Assignee: The Steel Company of Canada, Limited
    Inventors: Edwin R. Pretsch, Jan Cipris