Patents by Inventor Harrell J. McRae

Harrell J. McRae 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).

  • Apparatus and method for recycling oil laden waste materials
    Patent number: 5944034
    Abstract: A system for treating oil laden used products, e.g., oil filters to achieve complete recycle of the products. The used products are heated in a primary combustion zone under reducing conditions to lower the viscosity of the oil for removal and to create oil in vapor form. The oil vapor is passed to a reclamation chamber where oil is condensed and removed. The remaining vapors are led to a secondary combustion chamber under greater than stoichiometric conditions to produce clean exhaust.
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: August 31, 1999
    Assignee: McNick Recycling, Inc.
    Inventors: Harrell J. McRae, James R. Nickerson
  • Medical waste incinerator
    Patent number: 5193468
    Abstract: A medical waste incinerator with primary and secondary incinerator chambers. The primary chamber has an "hour-glass" shape and air conduits that are directed downward to prevent clogging. There are no interior metal structures within the burning chambers. The primary incineration chamber uses sub-stoichiometric amounts of air.
    Type: Grant
    Filed: January 30, 1992
    Date of Patent: March 16, 1993
    Assignee: Texas Refractory Service, Inc.
    Inventor: Harrell J. McRae