Patents by Inventor Loran Hoffman

Loran Hoffman 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).

  • Filter purge system utilizing a reactive propellant
    Patent number: 8142552
    Abstract: A system for removing matter from a filtering device is disclosed. The system may have a reactive propellant located downstream of the filtering device. The reactive propellant may be configured to generate an impact wave.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: March 27, 2012
    Assignee: Caterpillar Inc.
    Inventors: Steven Francis Meister, Loran Hoffman, Thomas V. Staley, Philip Stephen Bruza
  • System for treating exhaust gas
    Patent number: 8083822
    Abstract: A system for treating exhaust gas from an engine is disclosed. The system may include a housing, a fluid treatment element, and a conduit. The housing has an inlet and an outlet port and defines a flow path therebetween. The fluid treatment element is arranged in the flow path. The conduit is fluidly connected with at least one of the inlet port and the outlet port and includes a first port having a first axis and a second port having a second axis substantially perpendicular to the first axis. The first port has a first cross-section with an inner diameter. The second port has a second cross-section with an inner width and an inner length. The inner length of the second cross-section is smaller than the inner diameter of the first cross-section, and the inner width of the second cross-section is greater than the inner diameter of the first cross-section.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: December 27, 2011
    Assignee: Caterpillar Inc.
    Inventors: Loran Hoffman, Richard A. Crandell, Thomas V. Staley, Ryan M. Duffek
  • SYSTEM FOR TREATING EXHAUST GAS
    Publication number: 20090223212
    Abstract: A system for treating exhaust gas from an engine is disclosed. The system may include a housing, a fluid treatment element, and a conduit. The housing has an inlet and an outlet port and defines a flow path therebetween. The fluid treatment element is arranged in the flow path. The conduit is fluidly connected with at least one of the inlet port and the outlet port and includes a first port having a first axis and a second port having a second axis substantially perpendicular to the first axis. The first port has a first cross-section with an inner diameter. The second port has a second cross-section with an inner width and an inner length. The inner length of the second cross-section is smaller than the inner diameter of the first cross-section, and the inner width of the second cross-section is greater than the inner diameter of the first cross-section.
    Type: Application
    Filed: March 4, 2009
    Publication date: September 10, 2009
    Applicant: Caterpillar Inc.
    Inventors: Loran Hoffman, Richard A. Crandell, Thomas V. Staley, Ryan M. Duffek
  • Filter purge system utilizing a reactive propellant
    Publication number: 20090000478
    Abstract: A system for removing matter from a filtering device is disclosed. The system may have a reactive propellant located downstream of the filtering device. The reactive propellant may be configured to generate an impact wave.
    Type: Application
    Filed: June 29, 2007
    Publication date: January 1, 2009
    Inventors: Steven Francis Meister, Loran Hoffman, Thomas V. Staley, Philip Stephen Bruza