Patents by Inventor Alvin Coughenour

Alvin Coughenour 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).

  • Dual purpose dimple for HVAC circular ductwork
    Patent number: 8973954
    Abstract: Sealing HVAC ductwork along its joints to reduce air leakage is achieved by the combination of a gasket and mechanical locking mechanisms.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: March 10, 2015
    Assignee: Ductmate Industries, Inc.
    Inventors: Alvin Coughenour, Vincent L. Bloom, Duane Fetko
  • Dual Purpose Dimple for HVAC Circular Ductwork
    Publication number: 20130221667
    Abstract: This invention relates to sealing HVAC ductwork along its joints in order to reduce air leakage. The ductwork can be sealed by the combination of a gasket and mechanical locking mechanism.
    Type: Application
    Filed: April 2, 2013
    Publication date: August 29, 2013
    Applicant: DUCTMATE INDUSTRIES, INC.
    Inventors: Alvin Coughenour, Vincent L. Bloom, Duane Fetko
  • Dual purpose dimple for HVAC circular ductwork
    Patent number: 8429803
    Abstract: HVAC ductwork is sealed along its joints in order to reduce air leakage. The ductwork can be sealed by the combination of a gasket and mechanical locking mechanism. Transverse mechanical locking joints are provided.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: April 30, 2013
    Assignee: Ductmate Industries, Inc.
    Inventors: Alvin Coughenour, Vincent L. Bloom, Duane Fetko
  • Dual Purpose Dimple for HVAC Circular Ductwork
    Publication number: 20110042945
    Abstract: This invention relates to sealing HVAC ductwork along its joints in order to reduce air leakage. The ductwork can be sealed by the combination of a gasket and mechanical locking mechanism.
    Type: Application
    Filed: October 1, 2009
    Publication date: February 24, 2011
    Inventors: Alvin Coughenour, Vincent L. Bloom, Duane Fetko