Patents Assigned to Super Sack Manufacturing Company
  • Patent number: 5056571
    Abstract: A container fill system for filling flexible bulk container shaving lift straps with a product having a support frame with first and second ends, a scale connected to the first end of the support frame for determining the weight of the flexible bulk containers, a fill control device connected to the second end of the support frame for controlling the flow rate of the product into the flexible bulk container, a rotatable holder connected to the support frame and to a fill spout rotatable along a vertical axis and having fingers for securing the lift straps to the rotatable holder for supporting the flexible bulk containers and an electronic operator panel with an associated microprocessor for controlling the operation of the container fill system. The container fill system of the present invention allows for one man operation and filling of the flexible bulk containers.
    Type: Grant
    Filed: February 28, 1991
    Date of Patent: October 15, 1991
    Assignee: Super Sack Manufacturing Company
    Inventor: Norwin C. Derby
  • Patent number: 4457456
    Abstract: A collapsible receptacle (570) has a bottom wall (574) provided with a discharge spout (582). The discharge spout (582) is provided with an interior layer (586) which is grounded during the flow of material through the discharge spout to prevent the buildup of static electric charge therein. The bottom wall (574) may also be provided with an electrically conductive layer (592) to further prevent the buildup of static electric charge in materials flowing out of the collapsible receptacle (570) through the discharge spout (582). The conductive layers (586, 592) may be electrically interconnected.
    Type: Grant
    Filed: July 30, 1982
    Date of Patent: July 3, 1984
    Assignee: Super Sack Manufacturing Company
    Inventors: Norwin C. Derby, Robert R. Williamson