Patents by Inventor Jean Rogemont

Jean Rogemont 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: 4701234
    Abstract: The process of the invention concerns the manufacture of an interposed support of semipermeable microfiltration membranes, the support composed of a permeable mesh and a sealed border of elastomeric material. After deposition of an elastomeric film on a transfer support 2, the assembly which is obtained is cut into one or more elements 3 reconstituting the border; this or these elements 3 are applied on the mesh with their support(s) 2 and the elastomer is turned toward the mesh; then the mesh thus equipped is treated with pressure at a temperature of between and C. to cause the elastomer to penetrate into the mesh and to obtain a smooth border surface on each side of this mesh, allowing for a sealed joint. The product which is obtained is applied to the manufacture of microfiltration units, whether it has to do with ultrafiltration, with gas permeation or with hemodialysis.
    Type: Grant
    Filed: April 10, 1986
    Date of Patent: October 20, 1987
    Assignee: Cefilac
    Inventors: Jean Rogemont, Andre Nouvet
  • Patent number: 4624465
    Abstract: A pneumatic safety seal joint, made of elastomer, generally designed to be installed in a slot or groove, this joint having an inflatable internal volume under the pressure of a fluid, and an external seal surface. The joint has an internal volume with maximum internal width l and a maximum internal height H and has an internal sealed septum which divides the internal volume into two chambers, each with a means for pressurization. This internal septum is connected to the lateral walls of the joint such that the respective volumes of the two chambers are in a ratio between 0.9 and 1.1 and when l/H is between 1 and 2, the developed width L of this sealed septum is between 1.1 times and 1.4 times l, when l/H is between 2 and 8, the developed width L is such that 1.ltoreq.L.ltoreq.1.21. In case of the puncturing of one chamber the internal septum deforms and comes to press against the wall to be sealed, maintaining the seal.
    Type: Grant
    Filed: August 26, 1985
    Date of Patent: November 25, 1986
    Assignee: CEFILAC
    Inventor: Jean Rogemont