Patents Assigned to S.A.E.I. Celite
  • Process for positioning strengthening rods in mine levels and public works
    Patent number: 4286899
    Abstract: Strengthening rods are positioned in mine levels and public works by introducing into a long bore made in a wall or other surface to be strengthened, a thermosetting resinous composition and a metal rod of substantially the same length as the bore, and rotating the rod at a rotation speed which causes it to heat up by friction with the composition to the hardening temperature of the composition so as to cause the rod to be sealed in the bore by the hardening of the composition.
    Type: Grant
    Filed: September 25, 1980
    Date of Patent: September 1, 1981
    Assignees: S.A.E.I. Celite, Societe d'Etude et de Construction de Machines pour Toutes Industries SECOMA
    Inventors: Alain Benichou, Raymond J. Perraud