Patents by Inventor Charles T. Crisman

Charles T. Crisman 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: 6234193
    Abstract: Improved outlet boxes are provided for installation in a wall to connect water supply lines and drain lines to the corresponding lines from an appliance. Molded plastic outlet boxes having dual drains; left-to-right reversibility; adaptability to multiple drain and inlet line configurations, including top, bottom and side inlets; inclined bottom walls with gutters and removable webs facilitating drainage; and rear walls with recesses accommodating flushable water supply line connections are disclosed. Dual drain connectors adapted to combine the flows from dual drain outlets into a single drain pipe and knock-outs with downwardly extending, elongated tabs are also disclosed.
    Type: Grant
    Filed: July 18, 2000
    Date of Patent: May 22, 2001
    Inventors: Billy J. Hobbs, Philip A. Mulvey, Jerry P. Mitchell, Sam H. Howe, Charles T. Crisman
  • Patent number: 6125881
    Abstract: Improved outlet boxes are provided for installation in a wall to connect water supply lines and drain lines to the corresponding lines from an appliance. Molded plastic outlet boxes having dual drains; left-to-right reversibility; adaptability to multiple drain and inlet line configurations, including top, bottom and side inlets; inclined bottom walls with gutters and removable webs facilitating drainage; and rear walls with recesses accommodating flushable water supply line connections are disclosed. Dual drain connectors adapted to combine the flows from dual drain outlets into a single drain pipe and knock-outs with downwardly extending, elongated tabs are also disclosed.
    Type: Grant
    Filed: April 12, 1999
    Date of Patent: October 3, 2000
    Assignee: LSP Products Group, Inc.
    Inventors: Billy J. Hobbs, Philip A. Mulvey, Jerry P. Mitchell, Sam H. Howe, Charles T. Crisman
  • Patent number: 6106027
    Abstract: A flexible hose assembly used for pull-out faucets includes a hose having an inner tube and a spiral wound outer jacket. The hose assembly further includes at least one end connector disposed on an end of the hose that includes a jacket fitting having a tubular portion disposed between a spiral wound outer jacket and the inner tube. The tubular portion of the jacket fitting includes an externally threaded portion that engages the inner surface of the spiral wound outer jacket. The jacket fitting further includes a flange disposed at a distal end of the tubular portion wherein the flange abuts a distal end of an outer ferrule. The end connector also includes an insert fitting having a flange positioned on a distal end of a tubular portion. The tubular portion includes at least one external barb that engages the inner surface of the hose. A coupling nut with a central bore with a shoulder disposed therein receives the jacket fitting and the flange of the jacket fitting abuts the shoulder of the central bore.
    Type: Grant
    Filed: April 9, 1998
    Date of Patent: August 22, 2000
    Inventors: Philip A. Mulvey, Andrew J. Huntington, Charles T. Crisman