Patents Assigned to Metal Closures Group Limited
  • Patent number: 4249362
    Abstract: A method for applying a threaded closure to a container, said closure having sealing means in or towards the crown thereof, which method comprises applying the closure to the container by the application of a predetermined rotary torque thereto, continuing the application of the closure to the container until the desired torque applied is obtained and thereafter applying axial pressure to the closure crown towards and on to the container while simultaneously applying said torque whereby the closure pressure serves to disengage the threads to overcome at least some of the friction therebetween to permit a greater proportion of the applied torque to be applied to the sealing means within the closure.
    Type: Grant
    Filed: November 14, 1978
    Date of Patent: February 10, 1981
    Assignee: Metal Closures Group Limited
    Inventor: Thomas D. Brownbill
  • Patent number: 4220250
    Abstract: The present invention relates to a closure for a container the contents of which are to be pressurized characterized by having a crown and a depending skirt, retaining means provided in or on said skirt adapted to co-operate with a neck of the container to which the closure is to be applied, a flexible annular sealing ring extending from an internal surface of the closure adapted to engage in sealing relationship with a container neck and a support ring depending from the crown of the closure and disposed substantially concentrically within the sealing ring and arranged to limit the flexing of the sealing ring relative to the axis of the closure whereby the pressure of the contents of the container permeates between the support of the sealing rings to urge the ring into sealing engagement with the neck of the container to which the closure is applied the skirt has a bead at the level of the sealing ring extremity to center the closure on the neck as the sealing ring and neck are brought into sealing engagemen
    Type: Grant
    Filed: April 5, 1979
    Date of Patent: September 2, 1980
    Assignee: Metal Closures Group Limited
    Inventor: Thomas D. Brownbill
  • Patent number: 4196818
    Abstract: The present invention is concerned with a one-piece pressure resistant container closure including a pilfer proof ring and associated sealing means provided in or towards the crown of the closure whereby it is possible to apply the closure to a container without substantial risk of rupture between a skirt extension portion of the closure constituting a security ring and the remainder of the closure.
    Type: Grant
    Filed: April 17, 1978
    Date of Patent: April 8, 1980
    Assignee: Metal Closures Group Limited
    Inventor: Thomas D. Brownbill