Patents by Inventor David L. Christian

David L. Christian 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).

  • Publication number: 20120198778
    Abstract: A self-cleaning flooring system is provided that includes at least one module. The module comprises a drain pan, a plurality of discharge ports, and at least one side wall. The drain pan may have a ramp and a drain outlet. The ramp may slope downward towards the drain outlet. The discharge ports may be disposed about a periphery of the drain pan and may be directed towards the drain outlet to direct flushing fluid towards the drain outlet. The side wall may circumscribe a portion of the periphery of the drain pan and include a hollow passage and at least one fluid inlet. The fluid inlet may be in fluid communication with the hollow passage for delivering flushing fluid to the discharge ports.
    Type: Application
    Filed: April 17, 2012
    Publication date: August 9, 2012
    Inventors: James G. MacLean, David L. Christian
  • Publication number: 20100251646
    Abstract: A self-cleaning flooring system for catching waste products has at least one module comprising a drain pan and a floor grid. The drain pan has a ramp and a central drain outlet. The ramp extends around the drain pan defining a drain pan periphery. The ramp slopes downward from the drain pan periphery towards the drain outlet. The drain pan periphery has a plurality of discharge ports spaced therealong for discharge of flushing fluid onto the ramp such that the waste products are washed down the ramp towards the drain outlet. The floor grid extends across the drain pan and is mounted upon the drain pan periphery for supporting personnel standing thereon while permitting waste products to pass therethrough.
    Type: Application
    Filed: April 6, 2009
    Publication date: October 7, 2010
    Inventors: James G. MacLean, David L. Christian, Darell J. Long, JR.
  • Publication number: 20090241442
    Abstract: A self-cleaning flooring system is provided that includes at least one module. The module comprises a drain pan, a plurality of discharge ports, and at least one side wall. The drain pan may have a ramp and a drain outlet. The ramp may slope downward towards the drain outlet. The discharge ports may be disposed about a periphery of the drain pan and may be directed towards the drain outlet to direct flushing fluid towards the drain outlet. The side wall may circumscribe a portion of the periphery of the drain pan and include a hollow passage and at least one fluid inlet. The fluid inlet may be in fluid communication with the hollow passage for delivering flushing fluid to the discharge ports.
    Type: Application
    Filed: June 2, 2009
    Publication date: October 1, 2009
    Inventors: James G. MacLean, David L. Christian
  • Patent number: 6941703
    Abstract: A self-cleaning flooring system for catching waste products has at least one module comprising a drain pan and a floor grid. The drain pan has a ramp and a central drain outlet. The ramp extends around the drain pan defining a drain pan periphery. The ramp slopes downward from the drain pan periphery towards the drain outlet. The drain pan periphery has a plurality of discharge ports spaced therealong for discharge of flushing fluid onto the ramp such that the waste products are washed down the ramp towards the drain outlet. The floor grid extends across the drain pan and is mounted upon the drain pan periphery for supporting personnel standing thereon while permitting waste products to pass therethrough. The module is interconnectable to horizontally adjacent modules to form the flooring system.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: September 13, 2005
    Assignee: Sani-Floor, Incorporated
    Inventors: James G. MacLean, David L. Christian, Darell J. Long, Jr.
  • Publication number: 20040079040
    Abstract: A self-cleaning flooring system for catching waste products has at least one module comprising a drain pan and a floor grid. The drain pan has a ramp and a central drain outlet. The ramp extends around the drain pan defining a drain pan periphery. The ramp slopes downward from the drain pan periphery towards the drain outlet. The drain pan periphery has a plurality of discharge ports spaced therealong for discharge of flushing fluid onto the ramp such that the waste products are washed down the ramp towards the drain outlet. The floor grid extends across the drain pan and is mounted upon the drain pan periphery for supporting personnel standing thereon while permitting waste products to pass therethrough.
    Type: Application
    Filed: October 29, 2002
    Publication date: April 29, 2004
    Inventors: James G. MacLean, David L. Christian, Darell J. Long