Patents by Inventor Lonnie A. Coffey

Lonnie A. Coffey 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).

  • Adjustable riffler assembly
    Patent number: 7930981
    Abstract: An adjustable riffler can be used in a piping system connecting a pulverizer and a furnace. The adjustable riffler includes a support member, at least two plates spaced apart along an axis, and at least one inclined flange. The two plates include a fixed plate attached to the support member and a translatable plate positioned adjacent to the fixed plate. The translatable plate is translatable along the axis with respect to the fixed plate. The at least one inclined flange is connected to one of the fixed plate and the translatable plate and extends along the axis between the plates to form a channel between the fixed plate and the translatable plate.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: April 26, 2011
    Inventors: Lonnie A. Coffey, Robert L. Frank
  • ADJUSTABLE RIFFLER ASSEMBLY
    Publication number: 20090249987
    Abstract: An adjustable riffler can be used in a piping system connecting a pulverizer and a furnace. The adjustable riffler includes a support member, at least two plates spaced apart along an axis, and at least one inclined flange. The two plates include a fixed plate attached to the support member and a translatable plate positioned adjacent to the fixed plate. The translatable plate is translatable along the axis with respect to the fixed plate. The at least one inclined flange is connected to one of the fixed plate and the translatable plate and extends along the axis between the plates to form a channel between the fixed plate and the translatable plate.
    Type: Application
    Filed: April 2, 2008
    Publication date: October 8, 2009
    Inventors: Robert Frank, Lonnie Coffey