Patents by Inventor Derrick W. Lloyd

Derrick W. Lloyd 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).

  • Method of injecting secondary air into an exhaust gas stream of a marine engine
    Patent number: 11473474
    Abstract: An air intake and exhaust system for a marine engine having an intake manifold and an exhaust manifold includes an air compressor configured to compress ambient air into compressed air and a catalytic converter assembly configured to convert pollutants in an exhaust gas stream received from the exhaust manifold. The air compressor is configured to be fluidly coupled to the intake manifold of the engine for directing at least a first portion of the compressed air to the intake manifold of the engine. The air compressor is also selectively fluidly coupled to the catalytic converter assembly for selectively directing a second portion of the compressed air into the exhaust gas stream at a secondary air injection location at or upstream of the catalytic converter assembly.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: October 18, 2022
    Assignee: Indmar Products Company, Inc.
    Inventors: Richard J. Waggoner, Jason C. Stimmel, Jason Vetzel, Derrick W. Lloyd, Timothy G. Anderson
  • METHOD OF INJECTING SECONDARY AIR INTO AN EXHAUST GAS STREAM OF A MARINE ENGINE
    Publication number: 20210355853
    Abstract: An air intake and exhaust system for a marine engine having an intake manifold and an exhaust manifold includes an air compressor configured to compress ambient air into compressed air and a catalytic converter assembly configured to convert pollutants in an exhaust gas stream received from the exhaust manifold. The air compressor is configured to be fluidly coupled to the intake manifold of the engine for directing at least a first portion of the compressed air to the intake manifold of the engine. The air compressor is also selectively fluidly coupled to the catalytic converter assembly for selectively directing a second portion of the compressed air into the exhaust gas stream at a secondary air injection location at or upstream of the catalytic converter assembly.
    Type: Application
    Filed: July 30, 2021
    Publication date: November 18, 2021
    Inventors: Richard J. Waggoner, Jason C. Stimmel, Jason Vetzel, Derrick W. Lloyd, Timothy G. Anderson
  • Marine engine exhaust system having secondary air injection
    Patent number: 11111838
    Abstract: An air intake and exhaust system for a marine engine having an intake manifold and an exhaust manifold includes an air compressor configured to compress ambient air into compressed air and a catalytic converter assembly configured to convert pollutants in an exhaust gas stream received from the exhaust manifold. The air compressor is configured to be fluidly coupled to the intake manifold of the engine for directing at least a first portion of the compressed air to the intake manifold of the engine. The air compressor is also selectively fluidly coupled to the catalytic converter assembly for selectively directing a second portion of the compressed air into the exhaust gas stream at a secondary air injection location at or upstream of the catalytic converter assembly.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: September 7, 2021
    Assignee: Indmar Products Company, Inc.
    Inventors: Richard J. Waggoner, Jason C. Stimmel, Jason Vetzel, Derrick W. Lloyd, Timothy G. Anderson
  • Marine Engine Exhaust System Having Secondary Air Injection
    Publication number: 20200256236
    Abstract: An air intake and exhaust system for a marine engine having an intake manifold and an exhaust manifold includes an air compressor configured to compress ambient air into compressed air and a catalytic converter assembly configured to convert pollutants in an exhaust gas stream received from the exhaust manifold. The air compressor is configured to be fluidly coupled to the intake manifold of the engine for directing at least a first portion of the compressed air to the intake manifold of the engine. The air compressor is also selectively fluidly coupled to the catalytic converter assembly for selectively directing a second portion of the compressed air into the exhaust gas stream at a secondary air injection location at or upstream of the catalytic converter assembly.
    Type: Application
    Filed: January 16, 2020
    Publication date: August 13, 2020
    Inventors: Richard J. Waggoner, Jason C. Stimmel, Jason Vetzel, Derrick W. Lloyd, Timothy G. Anderson