Patents by Inventor Alvin L. Jefferson

Alvin L. Jefferson 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).

  • Flexible register boot for heated and cooled air
    Patent number: 10591179
    Abstract: A register boot which has a duct opening at one end and a register opening at the other end that protrudes through a hole in a structure that is made of flexible material that is deformable and also restores itself to the natural shape of the register boot. Because the register boot is deformable it is able to pass through the hole in the structure. The register boot then restores itself to its original shape. The register boot as described allows for a method of installation that allows a single person to install the register boot.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: March 17, 2020
    Assignee: Ductmate Industries, Inc.
    Inventors: Alvin L. Jefferson, Branden Butella, David Agee
  • High efficiency take-off fitting
    Patent number: 10436369
    Abstract: A high efficiency take-off fitting allows conditioned air from a rectangular cross-section main duct to be smoothly transferred into a circular cross-section branch duct.
    Type: Grant
    Filed: August 13, 2013
    Date of Patent: October 8, 2019
    Assignee: Ductmate Industries, Inc.
    Inventors: Alvin L. Jefferson, David E. Overdorff, II, Duane Fetko, Branden Butella, David Agee
  • High Efficiency Take-Off Fitting
    Publication number: 20140049038
    Abstract: A high efficiency take-off fitting allows conditioned air from a rectangular cross-section main duct to be smoothly transferred into a circular cross-section branch duct.
    Type: Application
    Filed: August 13, 2013
    Publication date: February 20, 2014
    Applicant: Ductmate Industries, Inc.
    Inventors: Alvin L. Jefferson, David E. Overdorff, II, Duane Fetko, Branden Butella, David Agee
  • Flexible Register Boot for Heated and Cooled Air
    Publication number: 20140049040
    Abstract: A flexible contoured boot for transmitting air to or from a room register in a building.
    Type: Application
    Filed: August 13, 2013
    Publication date: February 20, 2014
    Applicant: Ductmate Industries, Inc.
    Inventors: Alvin L. Jefferson, Branden Butella, David Agee
  • Rectangular Sheet Metal Sealed Duct
    Publication number: 20140048167
    Abstract: A rectangular cross-section sheet metal duct system that is automatically sealed when assembled prevents or reduces leakage of air from the duct system.
    Type: Application
    Filed: August 13, 2013
    Publication date: February 20, 2014
    Applicant: Ductmate Industries, Inc.
    Inventors: Douglas G. Gudenburr, Alvin L. Jefferson, David E. Overdorff, II
  • Residential Ductwork System
    Publication number: 20140052417
    Abstract: A high efficiency HVAC duct system for residential ductwork that is useable for multiple residential houses and is sealed from the manufacturing process.
    Type: Application
    Filed: August 14, 2013
    Publication date: February 20, 2014
    Applicant: Ductmate Industries, Inc.
    Inventors: Douglas G. Gudenburr, Alvin L. Jefferson, Branden Butella, David Agee, David E. Overdorff, II, Duane Fetko