Patents by Inventor David Robert Seward

David Robert Seward 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: 6543206
    Abstract: An apparatus and method for evacuating and sealing a bag made of a sealable material and containing a comminuted product. The bag is positioned with its open upper end around a sleeve through which a hollow probe can be extended. A pair of upper jaw members close to form an outer temporary seal above an intermediate region of the bag above the level of the surface of the charge in the bag where a permanent seal is to be formed. A pair of lower jaws members close to form an inner temporary seal about a lower region of the bag above the surface of the charge. With the probe extended through the sleeve into the bag, the bag is evacuated through the probe. After evacuation is completed and after withdrawal of the hollow probe, a pair of sealing members close against the intermediate region of the bag in order to form a permanent seal for the bag.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: April 8, 2003
    Assignee: Molins Plc
    Inventors: David Robert Seward, Michael John Cahill, Adrian Mark Hinkley, Roderick Leslie Mitchell
  • Publication number: 20020023411
    Abstract: An apparatus and method for evacuating and sealing a bag made of a sealable material and containing a comminuted product. The bag is positioned with its open upper end around a sleeve through which a hollow probe can be extended. A pair of upper jaw members close to form an outer temporary seal above an intermediate region of the bag above the level of the surface of the charge in the bag where a permanent seal is to be formed. A pair of lower jaws members close to form an inner temporary seal about a lower region of the bag above the surface of the charge. With the probe extended through the sleeve into the bag, the bag is evacuated through the probe. After evacuation is completed and after withdrawal of the hollow probe, a pair of sealing members close against the intermediate region of the bag in order to form a permanent seal for the bag.
    Type: Application
    Filed: March 6, 2001
    Publication date: February 28, 2002
    Inventors: David Robert Seward, Michael John Cahill, Adrian Mark Hinkley, Roderick Leslie Mitchell