Patents by Inventor Geoffrey Terence Webber

Geoffrey Terence Webber 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).

  • Process for end sealing a bag and apparatus therefor
    Patent number: 3953272
    Abstract: Superimposed heat-sealable layers are heat-sealed by applying external suction to draw the layers apart, inserting a nozzle between the parted layers, directing hot gas from the nozzle onto the inside surfaces of the layers, removing the nozzle and pressing the heated surfaces together. Preferably the layers are carried by a conveyor, such as between a pair of endless chains, along a path on which the suction means, nozzle means and pressing means are successively arranged.
    Type: Grant
    Filed: May 15, 1974
    Date of Patent: April 27, 1976
    Assignee: Whitehall Machinery Limited
    Inventor: Geoffrey Terence Webber