Patents by Inventor Marc J. Smet

Marc J. Smet 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).

  • Quick connect pipe coupling
    Patent number: 5403043
    Abstract: A pipe coupling having mating pin and socket elements, each having pitched interlocking fins. The two elements are mated by slidingly engaging the two elements and then rotating them. An O-ring may be added to one or the other of the elements to create a more leak-tight seal between the two elements. Additionally, the pin and socket elements may each have saw tooth shaped teeth which interact as a locking means for the pipe coupling.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: April 4, 1995
    Inventor: Marc J. Smet
  • High pressure pipe and device for making a hole in the ground, provided with such high pressure pipe
    Patent number: 5101918
    Abstract: A high pressure pipe consisting of a flexible high pressure hose which is attached at both ends to a tube. The tube is stiffer than the high pressure hose in order to allow the high pressure hose to be pushed into the ground without bending or buckling and thereby forming a hole in the ground.
    Type: Grant
    Filed: October 3, 1990
    Date of Patent: April 7, 1992
    Inventor: Marc J. Smet