Patents by Inventor Antony John Bubb

Antony John Bubb 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).

  • In and relating to machines for forming helically wound lock-seam tubing having multiple wall thickness
    Patent number: 5737832
    Abstract: This invention pertains to a machine for forming helical lock-seam tubing. The machine includes rollers for forming flanges on edges of laterally staggered overlapped strips, a forming head for forming the strips into a helical configuration, rollers for clinching the flanges into locking engagement, reels for supplying the strips, and structure for guiding the strips from the reels to the forming rollers.
    Type: Grant
    Filed: July 24, 1996
    Date of Patent: April 14, 1998
    Assignee: Protol A.G.
    Inventor: Antony John Bubb