Patents by Inventor Don Mackrill

Don Mackrill 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: 8327890
    Abstract: A bulk bag filling apparatus comprises a first support member having an upper end and a lower end and being oriented in a generally vertical direction; a second support member connected to said generally vertical member and extending at an angle to said generally vertical direction; a filling head for engagement with an opening of the bulk bag, wherein the filling head is connected to and supported by the second support member; a bulk bag support structure for engagement with support elements of the bulk bag, wherein the bulk bag support structure is connected to and supported by the second support member; and a hang-weighing mechanism for weighing the contents of the bulk bag, wherein the bulk bag support structure is connected to said second support member through said hang-weighing mechanism. The hang-weighing apparatus includes one or two load-bearing points at which the bulk bag support structure applies a load to the hang-weighing apparatus.
    Type: Grant
    Filed: September 8, 2006
    Date of Patent: December 11, 2012
    Assignee: Control and Metering Limited
    Inventors: Don Mackrill, Bahram Zandi-Hanjari
  • Publication number: 20090293990
    Abstract: A bulk bag filling apparatus comprises a first support member having an upper end and a lower end and being oriented in a generally vertical direction; a second support member connected to said generally vertical member and extending at an angle to said generally vertical direction; a filling head for engagement with an opening of the bulk bag, wherein the filling head is connected to and supported by the second support member; a bulk bag support structure for engagement with support elements of the bulk bag, wherein the bulk bag support structure is connected to and supported by the second support member; and a hang-weighing mechanism for weighing the contents of the bulk bag, wherein the bulk bag support structure is connected to said second support member through said hang-weighing mechanism. The hang-weighing apparatus includes one or two load-bearing points at which the bulk bag support structure applies a load to the hang-weighing apparatus.
    Type: Application
    Filed: September 8, 2006
    Publication date: December 3, 2009
    Applicant: CONTROL AND METERING LIMITED
    Inventors: Don Mackrill, Bahram Zandi-Hanjari
  • Patent number: 7165498
    Abstract: A vibrating table assembly for an apparatus for filling and weighing bulk bags comprises a bag support table, a vibrating device for vibrating the bag support table, and a lifting device for raising an lowering the bag support table, the lifting device being located below the bag support table. Preferably, the lifting device comprises a convoluted air bellows. Location of the lifting device below the table overcomes problems encountered with known bag filling apparatus where the bag support table and the lifting mechanism are connected to the frame of the apparatus.
    Type: Grant
    Filed: July 31, 2003
    Date of Patent: January 23, 2007
    Assignee: Control and Metering Limited
    Inventors: Don Mackrill, Carmine Cacciacarro, Viren Panchal
  • Publication number: 20050022700
    Abstract: A vibrating table assembly for an apparatus for filling and weighing bulk bags comprises a bag support table, vibrating means for vibrating the bag support table, and a lifting device for raising an lowering the bag support table, the lifting device being located below the bag support table. Preferably, the lifting device comprises a convoluted air bellows. Location of the lifting device below the table overcomes problems encountered with known bag filling apparatus where the bag support table and the lifting mechanism are connected to the frame of the apparatus.
    Type: Application
    Filed: July 31, 2003
    Publication date: February 3, 2005
    Inventors: Don Mackrill, Carmine Cacciacarro, Viren Panchal