Patents by Inventor Colin W. Wooldridge

Colin W. Wooldridge 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).

  • Flush tank mechanism
    Patent number: 5502846
    Abstract: The present invention discloses an operating mechanism for a cistern (1) or flush tank which is able to be used for a wide variety of cisterns, irrespective of their volume to depth profile. The preferred mechanism takes the form of a generally cup-shaped weir (22) which surrounds the flush valve (18) and from which a support frame (7) extends. The height of the rim of the weir is able to be selected or adjusted, for example by the use of a number of rupturable panels (24) located in the walls of the weir (22). A mechanism (26,27) to adjust for height variations between the flush actuators (14) and the flush operating mechanism (15) is also disclosed.
    Type: Grant
    Filed: June 30, 1994
    Date of Patent: April 2, 1996
    Assignee: Caroma Industries Limited
    Inventors: David Chelchowski, Colin W. Wooldridge