Patents by Inventor Patrick Mcenhill

Patrick Mcenhill 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: 7374049
    Abstract: A screening plant having a main frame, a trammel drum mounted on the main frame to be rotatable about a rotational axis at a small angle to the horizontal, and having an input end and an opposite discharge end at a lower end than the input end, screening apertures provided in the wall of the drum, drive means coupled with the drum and operative to rotate the drum while screening takes place, an input hopper mounted on the main frame and arranged to supply bulk material to the input end of the drum, an inclined guide shoot which feeds material from the hopper laterally so as to enter the input end of the drum, and a cantilever type rotatable mounting assembly which rotatably mounts the input end of the drum on the main frame of the plant.
    Type: Grant
    Filed: February 5, 2003
    Date of Patent: May 20, 2008
    Assignee: Extec Screens & Crushers Limited
    Inventors: Paul Douglas, Patrick Mcenhill
  • Publication number: 20050139524
    Abstract: A screening plant having a main frame, a trammel drum mounted on the main frame to be rotatable about a rotational axis at a small angle to the horizontal, and having an input end and an opposite discharge end at a lower end than the input end, screening apertures provided in the wall of the drum, drive means coupled with the drum and operative to rotate the drum while screening takes place, an input hopper mounted on the main frame and arranged to supply bulk material to the input end of the drum, an inclined guide shoot which feeds material from the hopper laterally so as to enter the input end of the drum, and a cantilever type rotatable mounting assembly which rotatably mounts the input end of the drum on the main frame of the plant.
    Type: Application
    Filed: February 5, 2003
    Publication date: June 30, 2005
    Inventors: Paul Douglas, Patrick Mcenhill