Patents by Inventor Thomas Earl Kelly

Thomas Earl Kelly 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).

  • Backflow preventing apparatus for water closets
    Patent number: 8636026
    Abstract: An automatically activated backflow prevention device for water closets or toilets is provided having a substantially cylindrical support member terminating in one end in a cam shaped end for mating with a hinged flapper valve having a parabolic shaped or upwardly curving upper surface and correspondingly shaped sealing member disposed therebetween for mating with the cam shaped end of the substantially cylindrical support member. An elastomeric hinge member is provided for connecting the closure member or flapper valve to the substantially cylindrical support member so that when closed the flapper valve or closure member conforms to the confronting cam shaped end of the cylindrical support member with the sealing member disposed therebetween. A backflow water pressure responsive assist member is optionally provided on the lower surface of the closure member to assist in the closure of the closure member in response to backflow water pressure from waste pipes.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: January 28, 2014
    Inventors: Thomas Earl Kelly, Stephanie C. Kelly, William Harley Frankenfield
  • Backflow preventing apparatus for water closets
    Publication number: 20110017316
    Abstract: An automatically activated backflow prevention device for water closets or toilets is provided having a substantially cylindrical support member terminating in one end in a cam shaped end for mating with a hinged flapper valve having a parabolic shaped or upwardly curving upper surface and correspondingly shaped sealing member disposed therebetween for mating with the cam shaped end of the substantially cylindrical support member. An elastomeric hinge member is provided for connecting the closure member or flapper valve to the substantially cylindrical support member so that when closed the flapper valve or closure member conforms to the confronting cam shaped end of the cylindrical support member with the sealing member disposed therebetween. A backflow water pressure responsive assist member is optionally provided on the lower surface of the closure member to assist in the closure of the closure member in response to backflow water pressure from waste pipes.
    Type: Application
    Filed: September 3, 2010
    Publication date: January 27, 2011
    Inventors: Thomas Earl Kelly, Stephanie C. Kelly, William Harley Frankenfield
  • Backflow preventing apparatus for water closets
    Patent number: 7789104
    Abstract: An automatically activated backflow prevention device for water closets or toilets is provided having a substantially cylindrical support member terminating in one end in a cam shaped end for mating with a hinged flapper valve having a parabolic shaped or upwardly curving upper surface and correspondingly shaped sealing member disposed therebetween for mating with the cam shaped end of the substantially cylindrical support member. An elastomeric hinge member is provided for connecting the closure member or flapper valve to the substantially cylindrical support member so that when closed the flapper valve or closure member conforms to the confronting cam shaped end of the cylindrical support member with the sealing member disposed therebetween. A backflow water pressure responsive assist member is optionally provided on the lower surface of the closure member to assist in the closure of the closure member in response to backflow water pressure from waste pipes.
    Type: Grant
    Filed: September 17, 2007
    Date of Patent: September 7, 2010
    Inventors: Thomas Earl Kelly, Stephanie C. Kelly, William Harley Frankenfield
  • Backflow preventing apparatus for water closets
    Publication number: 20090071552
    Abstract: An automatically activated backflow prevention device for water closets or toilets is provided having a substantially cylindrical support member terminating in one end in a cam shaped end for mating with a hinged flapper valve having a parabolic shaped or upwardly curving upper surface and correspondingly shaped sealing member disposed therebetween for mating with the cam shaped end of the substantially cylindrical support member. An elastomeric hinge member is provided for connecting the closure member or flapper valve to the substantially cylindrical support member so that when closed the flapper valve or closure member conforms to the confronting cam shaped end of the cylindrical support member with the sealing member disposed therebetween. A backflow water pressure responsive assist member is optionally provided on the lower surface of the closure member to assist in the closure of the closure member in response to backflow water pressure from waste pipes.
    Type: Application
    Filed: September 17, 2007
    Publication date: March 19, 2009
    Inventors: Thomas Earl Kelly, Stephanie C. Kelly, William Harley Frankenfield