Patents by Inventor Colette Regnier

Colette Regnier 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).

  • Process and installation for the congelation of grounds by means of a cryogenic liquid
    Patent number: 4676694
    Abstract: The injection of liquid nitrogen into the probe (2) is regulated in an on-off manner so as to maintain the temperature of the ground at the coldest point above a value within the range of between -140.degree. C. and -160.degree. C. so as to cause calefaction of the liquid nitrogen. The liquid nitrogen is alternately injected into the central passage (9) and into the annular passage (11) of the probe, these passages being thermally insulated from each other.
    Type: Grant
    Filed: May 29, 1985
    Date of Patent: June 30, 1987
    Assignee: l'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Pierre Karinthi, Maurice Gardent, Colette Regnier, Jean Tuccella
  • Ground congelation process and installation
    Patent number: 4607488
    Abstract: A refrigerant liquid flows through congelation probes (S1, S2, . . . ). The temperature of the liquid supplied to each probe is regulated as a function of the rate of congelation of the ground around the various probes and/or is progressively increased as the congelation progresses.
    Type: Grant
    Filed: May 28, 1985
    Date of Patent: August 26, 1986
    Assignee: L'Air Liquide, Societe Anonyme Pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Pierre Karinthi, Maurice Gardent, Colette Regnier, Jean Tuccella