Patents by Inventor Eric Paul Spaeth

Eric Paul Spaeth 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).

  • Compact design exhaust aftertreatment system with NOx sensor
    Patent number: 10066535
    Abstract: An exhaust aftertreatment system includes a housing including at least one exhaust aftertreatment component. The housing defines a body portion and an outlet portion terminating in an outlet opening. The outlet portion decreases in diameter from the body portion toward the outlet opening. A sampling tube is positioned within the outlet portion and extends between opposing sides of an inner wall of the outlet portion, with the sampling tube having a plurality of openings facing the body portion. A NOx sensor is positioned in fluid communication with an interior of the sampling tube.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: September 4, 2018
    Assignee: Caterpillar Inc.
    Inventors: Yong Yi, Bogdan Balea, Eric Paul Spaeth
  • COMPACT DESIGN EXHAUST AFTERTREATMENT SYSTEM WITH NOX SENSOR
    Publication number: 20180135496
    Abstract: An exhaust aftertreatment system includes a housing including at least one exhaust aftertreatment component. The housing defines a body portion and an outlet portion terminating in an outlet opening. The outlet portion decreases in diameter from the body portion toward the outlet opening. A sampling tube is positioned within the outlet portion and extends between opposing sides of an inner wall of the outlet portion, with the sampling tube having a plurality of openings facing the body portion. A NOx sensor is positioned in fluid communication with an interior of the sampling tube.
    Type: Application
    Filed: November 17, 2016
    Publication date: May 17, 2018
    Inventors: Yong YI, Bogdan BALEA, Eric Paul SPAETH
  • Diffuser plate for an exhaust aftertreatment module
    Patent number: 9802157
    Abstract: An aftertreatment module may include a housing with an inlet port and an outlet port. A selective catalytic reduction catalyst may be disposed between the inlet port and the outlet port. A diffuser plate may be disposed downstream of the inlet port and upstream of the selective catalytic reduction catalysts. The diffuser plate may include a first section including a first degree of porosity and a second section including a second degree of porosity. The first degree of porosity may be greater than the second degree of porosity.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: October 31, 2017
    Assignee: Caterpillar Inc.
    Inventors: Mark Lunau Schmid, Eric Paul Spaeth, Raymond U. Isada, Julian Justin
  • DIFFUSER PLATE FOR AN EXHAUST AFTERTREATMENT MODULE
    Publication number: 20170036165
    Abstract: An aftertreatment module may include a housing with an inlet port and an outlet port. A selective catalytic reduction catalyst may be disposed between the inlet port and the outlet port. A diffuser plate may be disposed downstream of the inlet port and upstream of the selective catalytic reduction catalysts. The diffuser plate may include a first section including a first degree of porosity and a second section including a second degree of porosity. The first degree of porosity may be greater than the second degree of porosity.
    Type: Application
    Filed: August 5, 2015
    Publication date: February 9, 2017
    Applicant: CATERPILLAR INC.
    Inventors: Mark Lunau Schmid, Eric Paul Spaeth, Raymond U. Isada, Julian Justin