Patents by Inventor Erskin Johnson, SR.

Erskin Johnson, SR. 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 energy electric and gas water heater with igniter shutoff circuit
    Patent number: 10267537
    Abstract: A dual energy electric and gas water heater with an igniter shutoff circuit provides the user with a quick connect by which the electrical heating system may be selectively enabled or disabled. A transformer and relay limit the function of the gas igniter to only function when the electrical heating system is not energized, whether by manual disconnection or power loss.
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: April 23, 2019
    Inventor: Erskin Johnson, Sr.
  • Dual Energy Electric and Gas Water Heater with Igniter Shutoff Circuit
    Publication number: 20150253038
    Abstract: A dual energy electric and gas water heater with an igniter shutoff circuit provides the user with a quick connect by which the electrical heating system may be selectively enabled or disabled. A transformer and relay limit the function of the gas igniter to only function when the electrical heating system is not energized, whether by manual disconnection or power loss.
    Type: Application
    Filed: April 29, 2015
    Publication date: September 10, 2015
    Inventor: Erskin Johnson, SR.