Patents by Inventor Larry Donald Hartman

Larry Donald Hartman 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).

  • Modular manifold for a tankless water heater
    Patent number: 11499746
    Abstract: A modular manifold for a tankless water heater includes a first cavity member having a first opening, a second opening, and a base wall; a second cavity member coupled to the first cavity member, the second cavity member having a first opening, a second opening, and a base wall; a first cover plate coupled to either the first cavity member or the second cavity member; and a second cover plate coupled to either the first cavity member or the second cavity member, wherein two openings in the first and second openings are covered by the first and second cover plates, respectively, and wherein the base walls of the first and second cavity members, the first and second cover plates, and the two openings in the first and second openings not covered by the first and second cover plates define a fluid flow path in the modular manifold.
    Type: Grant
    Filed: February 17, 2017
    Date of Patent: November 15, 2022
    Assignee: Bradford White Corporation
    Inventors: Kenneth E. Lutz, II, Larry Donald Hartman
  • MODULAR MANIFOLD FOR A TANKLESS WATER HEATER
    Publication number: 20170159969
    Abstract: A modular manifold for a tankless water heater includes a first cavity member having a first opening, a second opening, and a base wall; a second cavity member coupled to the first cavity member, the second cavity member having a first opening, a second opening, and a base wall; a first cover plate coupled to either the first cavity member or the second cavity member; and a second cover plate coupled to either the first cavity member or the second cavity member, wherein two openings in the first and second openings are covered by the first and second cover plates, respectively, and wherein the base walls of the first and second cavity members, the first and second cover plates, and the two openings in the first and second openings not covered by the first and second cover plates define a fluid flow path in the modular manifold.
    Type: Application
    Filed: February 17, 2017
    Publication date: June 8, 2017
    Applicant: Keltech, Inc.
    Inventors: Kenneth E. Lutz, II, Larry Donald Hartman
  • Modular manifold for a tankless water heater
    Patent number: 9574792
    Abstract: A modular manifold for a tankless water heater includes a first cavity member and a second cavity member. The first cavity member includes a first opening, a second opening, and a first base wall. The second cavity member is coupled to the first cavity member and includes a first opening, a second opening, and a second base wall. Two of the openings are configured to receive a first conduit and a second conduit. The first and second base walls and the two openings that receive the first and second conduits define a fluid flow path through the modular manifold.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: February 21, 2017
    Assignee: Keltech, Inc.
    Inventors: Kenneth E. Lutz, II, Larry Donald Hartman