Patents by Inventor Jean C. Langlois

Jean C. Langlois 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: 5040791
    Abstract: A collapsible portable batting cage having an upper frame assembly, a lower frame assembly, and a rear frame assembly. A length of shock cord is threaded through a vertical bore hole. The top end of the shock cord passes through an eye bolt on the front end of the upper frame assembly and its free end is detachably secured to the top edge of the rear assembly. The bottom end of the shock cord is passed through an eye bolt mounted on the front end of the lower frame assembly and it has its free end detachably secured to the bottom edge of the rear assembly. There is structure on the respective top edge and bottom edge of the rear frame assembly for adjusting the height of the static position of the ball prior to a person taking practice batting swings against it. A safety line is passed through the horizontal bore hole of the bail and its respective ends are secured to the left and right upright tubular members of the rear frame assembly.
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: August 20, 1991
    Inventors: Aleksandar Ratajac, Jean C. Langlois, Gary Dubie, Bobby Ratayats
  • Patent number: 4986551
    Abstract: A portable golf practice swing assembly having a vertically oriented four sided frame assembly having a net stretched between its sides and secured thereto. The bottom of the assembly has laterally spaced attachment legs that are secured to the forward end of laterally spaces side frame members. The other ends of the frame members are secured to a golf ball support structure positioned a predetermined distance in front of the assembly. It has a tee upon which is mounted a golf ball. Secured to the front end of the ball is a first restraint line whose forward end is connected at a Y connection point to a pair of safety lines whose front ends are secured to the respective laterally spaced side frame members of the assembly.
    Type: Grant
    Filed: May 7, 1990
    Date of Patent: January 22, 1991
    Inventors: Jean C. Langlois, Gary Dubie, Aleksandar Ratajac