Patents by Inventor Patrick James Walsh

Patrick James Walsh 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).

  • Piston type drain clearing apparatus
    Patent number: 7062799
    Abstract: An apparatus for clearing a clog in a pipe that includes a hollow, rigid cylindrical body, the body having a closed end and an open end; a piston disposed in the body for reciprocation therein; a rod attached to the piston and extending through an opening in the closed end of the body; a handle located on an upper portion of the rod; and a seal attached to the open end of the body. In one embodiment, the seal includes at least one flexible flange formed on an external surface thereof.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: June 20, 2006
    Inventor: Patrick James Walsh
  • Piston type drain clearing apparatus
    Publication number: 20050132480
    Abstract: An apparatus for clearing a clog in a pipe having a diameter, the apparatus including a hollow, rigid cylindrical body, the body having a closed end, an open end and an inside diameter that is less than the diameter of the pipe at the clog thereby providing a mechanical advantage in removing the clog; a piston disposed in the body for reciprocation therein; a rod attached to the piston and extending through an opening in the closed end of the body; a handle located on an upper portion of the rod; and a seal attached to the open end of the body.
    Type: Application
    Filed: February 4, 2005
    Publication date: June 23, 2005
    Inventor: Patrick James Walsh
  • Piston type drain clearing apparatus
    Patent number: 6895606
    Abstract: An apparatus for clearing a clog in a pipe having a diameter, the apparatus including a hollow, rigid cylindrical body, the body having a closed end, an open end and an inside diameter that is less than the diameter of the pipe at the clog thereby providing a mechanical advantage in removing the clog; a piston disposed in the body for reciprocation therein; a rod attached to the piston and extending through an opening in the closed end of the body; a handle located on an upper portion of the rod; and a seal attached to the open end of the body.
    Type: Grant
    Filed: June 19, 2003
    Date of Patent: May 24, 2005
    Inventor: Patrick James Walsh
  • Drain clearing apparatus and seals
    Publication number: 20040064878
    Abstract: An apparatus for clearing a clog in a pipe having an inside diameter, comprising a hollow, collapsible, generally cylindrical bellows portion, the bellows portion having an upper end, a lower end and an inside diameter that is less than the inside diameter of the pipe at the clog thereby providing a mechanical advantage in removing the clog; a handle attached to the upper end of the bellows portion; and a seal attached to the lower end of the bellows portion.
    Type: Application
    Filed: July 8, 2003
    Publication date: April 8, 2004
    Inventor: Patrick James Walsh
  • Piston type drain clearing apparatus
    Publication number: 20040010842
    Abstract: An apparatus for clearing a clog in a pipe having a diameter, the apparatus including a hollow, rigid cylindrical body, the body having a closed end, an open end and an inside diameter that is less than the diameter of the pipe at the clog thereby providing a mechanical advantage in removing the clog; a piston disposed in the body for reciprocation therein; a rod attached to the piston and extending through an opening in the closed end of the body; a handle located on an upper portion of the rod; and a seal attached to the open end of the body.
    Type: Application
    Filed: June 19, 2003
    Publication date: January 22, 2004
    Inventor: Patrick James Walsh