Patents by Inventor Robert A. Shatten

Robert A. Shatten 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).

  • System and method for cryogenic cooling using liquefied natural gas
    Patent number: 6668562
    Abstract: A system and method for cooling a material with liquefied natural gas where liquefied natural gas and the material to be cryogenically cooled are brought into direct or indirect contact and cooled material and a combination of liquefied natural gas and natural gas are removed. Cooling may also employ an intermediate cooling medium such as a refrigerant or nitrogen. In the case of converting rubber in tires to rubber crumb, cooling of the products of a hammer mill and a fine grind mill by nitrogen subsequent to the cooling of nitrogen by a refrigerant and the refrigerant by liquefied natural gas converts shredded tires into recyclable rubber crumb.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: December 30, 2003
    Inventors: Robert A. Shatten, John Carrier, Johnny Dean Jackson