Patents by Inventor David William Thomson

David William Thomson 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: 7398890
    Abstract: A closure assembly for a mouth and neck portion of a container for liquid has a sleeve adapted to lie substantially concentrically with respect to the mouth and provided with a mechanism for fixing the sleeve on the container. A first outer sleeve is coaxially mounted over the sleeve and a second outer sleeve separate from the first outer sleeve and substantially tight fit with a container closure member. The first and second outer sleeves are axially aligned and have respective initially adjacent portions. A mechanism is provided for spacing apart the initially adjacent portions of the first and second outer sleeves upon reclosure of the assembly after an initial opening of the container.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: July 15, 2008
    Assignee: Guala Closures Patents B.V.
    Inventor: David William Thomson
  • Patent number: 6908013
    Abstract: There is disclosed a tamper-evident device for a closure assembly adapted to be applied to a mouth of a container, for example, a neck of a bottle. There has been identified a need for an improved tamper-evident device which does not have any parts which are removed upon initial opening and which are liable to be reattached by counterfeits or the like. Accordingly the present invention provides a tamper-evident device comprising a sleeve member which comprises a first portion associated with a second portion by a frangible portion therebetween, and wherein said first portion is adapted to be applied to a mouth and neck portion of a container, and said second portion is associated with a container closure member, and wherein an initial container opening operation causes said frangible portion to fracture or break such that when the container is reclosed said first and second portions are located in a spaced apart relationship to one another.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: June 21, 2005
    Assignee: Daniel Montgomery & Son Limited
    Inventors: David William Thomson, Egidio Mezzadra
  • Patent number: 6854612
    Abstract: The invention relates to a non-refillable tamper evident liquid container closure assembly which is applied to a mouth and neck portion of a container for liquid. The closure assembly provides a sleeve which is adapted to lie around the mouth and provided with three projection means projecting inwardly of the sleeve, the projection means are movable radially of the sleeve in a stiffly resilient manner and are engageable with an outer lip portion of the bottle neck. The assembly also includes a valve seat body which is receivable within the neck portion of the bottle, and is surrounded by the sleeve.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: February 15, 2005
    Assignee: Daniel Montgomery & Son Limited
    Inventor: David William Thomson
  • Publication number: 20040129729
    Abstract: There is disclosed a tamper-evident device for a closure assembly adapted to be applied to a mouth of a container, for example, a neck of a bottle. There has been identified a need for an improved tamper-evident device which does not have any parts which are removed upon initial opening and which are liable to be reattached by counterfeits or the like. Accordingly the present invention provides a tamper-evident device comprising a sleeve member which comprises a first portion associated with a second portion by means of a frangible portion therebetween, and wherein said first portion is adapted to be applied to a mouth and neck portion of a container, and said second portion is associated with a container closure member, and wherein an initial container opening operation causes said frangible portion to fracture or break such that when the container is reclosed said first and second portions are located in a spaced apart relationship to one another.
    Type: Application
    Filed: November 20, 2003
    Publication date: July 8, 2004
    Inventors: David William Thomson, Egidio Mezzadra
  • Publication number: 20030178442
    Abstract: The invention relates to a non-refillable tamper evident liquid container closure assembly which is applied to a mouth and neck portion of a container for liquid. The closure assembly provides a sleeve which is adapted to lie around the mouth and provided with three projection means projecting inwardly of the sleeve, the projection means are movable radially of the sleeve in a stiffly resilient manner and are engageable with an outer lip portion of the bottle neck. The assembly also includes a valve seat body which is receivable within the neck portion of the bottle, and is surrounded by the sleeve.
    Type: Application
    Filed: February 28, 2003
    Publication date: September 25, 2003
    Inventor: David William Thomson