Patents by Inventor William J. McAndrew

William J. McAndrew 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).

  • Ball or plug valve stem extension and lock mechanism
    Patent number: 4817663
    Abstract: A fluid control valve stem extension and locking device includes a rod member to extend the valve stem with a lower end bored and threaded to threadably engage the exposed end of the valve stem with set screws extending horizontally into the bore opening to bear on the sides of the valve stem, the upper of the extension rod shaped to duplicate the shape of the exposed end of the valve stem and a detached plate having a hole shape to interfit over the exposed end of the valve stem coupled to move with turning of the valve stem and including a stop device duplicating the function of the stopping device used in the valve with a locking mechanism including a cylindrical tube sized to interfit over the stem extension device with an attachment plate structurally attached to the lower end of the tube with a horizontal radial plate structurally attached to the outside surface of the upper end of the tube with two holes corresponding to the valve positions and a locking plate with an opening to interfit over the shape
    Type: Grant
    Filed: April 20, 1988
    Date of Patent: April 4, 1989
    Inventor: William J. McAndrew
  • Ball or plug valve stem extension and lock mechanism
    Patent number: 4756507
    Abstract: A fluid control valve stem extension and locking device includes a rod member to extend the valve stem with a lower end bored and threaded to threadably engage the exposed end of the valve stem with set screws extending horizontally into the bore opening to bear on the sides of the valve stem, the upper of the extension rod shaped to duplicate the shape of the exposed end of the valve stem and a detached plate having a hole shape to interfit over the exposed end of the valve stem coupled to move with turning of the valve stem and including a stop device duplicating the function of the stopping device used in the valve with a locking mechanism including a cylindrical tube sized to interfit over the stem extension device with an attachment plate structurally attached to the lower end of the tube with a horizontal radial plate structurally attached to the outside surface of the upper end of the tube with two holes corresponding to the valve positions and a locking plate with an opening to interfit over the shape
    Type: Grant
    Filed: July 6, 1987
    Date of Patent: July 12, 1988
    Inventor: William J. McAndrew