Patents by Inventor David W. Creasy

David W. Creasy 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).

  • Filter assembly
    Patent number: 7517452
    Abstract: A floor waste (10) including a filter basket (16) having a magnet (18). The magnet (18) attracts a movable valve member (27) upwardly from a seat (22) to allow liquid to pass through the seat (22). When the basket (15) is removed the movable valve member (27) closes the seat (22). In one embodiment the valve member (27) includes a valve disk 29 that prevents the flow of liquid through the seat (22) when engaged therewith, while in another embodiment the disk (29) has a series of passages (31) that permits the flow of liquid through the seat when the disk (29) is engaged with the seat (22).
    Type: Grant
    Filed: December 1, 2004
    Date of Patent: April 14, 2009
    Assignee: Speciality Plumbling Supplies Pty Ltd
    Inventors: Raymond G. Chapman, David W. Creasy
  • Filter Assembly
    Publication number: 20080017567
    Abstract: A floor waste (10) including a filter basket (16) having a magnet (18). The magnet (18) attracts a movable valve member (27) upwardly from a seat (22) to allow liquid to pass through the seat (22). When the basket (15) is removed the movable valve member (27) closes the seat (22). In one embodiment the valve member (27) includes a valve disk 29 that prevents the flow of liquid through the seat (22) when engaged therewith, while in another embodiment the disk (29) has a series of passages (31) that permits the flow of liquid through the seat when the disk (29) is engaged with the seat (22).
    Type: Application
    Filed: December 1, 2004
    Publication date: January 24, 2008
    Applicant: Speciality Plumbing Supplies Pty Ltd.
    Inventors: Raymond G. Chapman, David W. Creasy