Patents by Inventor Clair Wheeler

Clair Wheeler 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: 5674463
    Abstract: Sulfur compounds are removed from gaseous carbon dioxide by contacting the carbon dioxide with water vapor in the presence of a carbonyl sulfide hydrolysis catalyst, thereby converting carbonyl sulfide in the gas stream to hydrogen sulfide, contacting the resulting gas stream with ferric oxide, thereby removing hydrogen sulfide from the gas stream as elemental sulfur, and contacting the remaining gas stream with copper oxide, zinc oxide or mixtures of these, thereby removing any remaining sulfur compounds from the gaseous carbon dioxide.
    Type: Grant
    Filed: August 25, 1994
    Date of Patent: October 7, 1997
    Assignee: The BOC Group, Inc.
    Inventors: Loc H. Dao, Clair Wheeler
  • Patent number: 5186008
    Abstract: The present invention provides a cryogenic freezer and method using a freezing chamber within which articles are cooled under the direct application of a cryogen, causing the cryogen to vaporize into a cryogenic vapor. The freezing chamber has inlet and outlet plenums through which articles to be frozen are passed into and from the freezing chamber, respectively. The liquid cryogen is introduced from a make-up tank into the freezing chamber and into direct contact with the articles to be frozen. Conduits connect the inlet and outlet plenums to a blower that draws air from outside the freezing chamber and the cryogenic vapor from inside the freezing chamber to prevent air from entering the freezing chamber. The cryogenic vapor is drawn from an outlet in the freezing chamber to a recovery unit to be compressed, purified and liquefied. The resulting liquid cryogen is then fed back to the make-up tank.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: February 16, 1993
    Assignee: The BOC Group, Inc.
    Inventors: Jack Appolonia, Clair Wheeler, Akhilesh Kapoor