Patents by Inventor David J. Nicholls

David J. Nicholls 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).

  • Patent number: 9322695
    Abstract: Systems and methods for determining amount of solid ammonia stored in a canister used in providing ammonia fluid in exhaust gas after-treatment systems. A microcontroller sets an ammonia level based on the data read from an RFID tag associated with the canister. The data may provide the amount of solid ammonia stored in the canister or a tag number that the microcontroller may use to retrieve the quantity of stored solid ammonia. A measured amount of ammonia fluid used during the treatment process may be used by the microcontroller in determining the amount of solid ammonia depleted from the canister. At predetermined precisions, the amount of depleted ammonia is subtracted from the set ammonia level to determine the remaining amount of solid ammonia in the canister. This determined amount of may be used to reset the ammonia level and be written onto the RFID tag.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: April 26, 2016
    Assignee: International Engine Intellectual Property Company, LLC.
    Inventors: David J. Nicholls, Jason B. Arriaga, Jeffrey R. Kelso
  • Publication number: 20150159532
    Abstract: A heating device and method for use in heating a canister containing a reductant, such as ammonia for use in an after-treatment device in an exhaust system, is disclosed. The heating device or jacket includes two sections forming an interior chamber for receipt of the canister. The sections include multiple layers including an inner surface layer, which provides both uniform heating of the canisters positioned therein, and a wear plate for engaging the canister within the heating unit.
    Type: Application
    Filed: June 11, 2012
    Publication date: June 11, 2015
    Applicant: International Engine Intellectual Property Company , LLC
    Inventors: David J. Nicholls, Jeffrey Kelso, Jason B. Arriaga
  • Patent number: 8826996
    Abstract: Apparatus and method for applying novel horseshoes to the hoof of a horse comprising the steps of, establishing the apex of the hoof wall curve that defines each lateral side of the hoof wall, and applying a horseshoe to the hoof by aligning the longitudinal mid line of each arm of the horseshoe with the respective apex on each lateral side of the hoof wall and aligning the heels of the horseshoe arms with the caudal part of the central sulcus of the hoof's frog.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: September 9, 2014
    Inventors: Eugene D. Ovnicek, David J. Nicholls, Mark S. Spriggs, Michael J. Williams, Tfm Head
  • Publication number: 20140021194
    Abstract: A heating jacket for use with an ammonia-containing storage cartridge for the controlled release of ammonia into an exhaust stream for the reduction of NOx is disclosed. The heating jacket includes an upper section comprising a plurality of layered materials, a lower section comprising a plurality of layered materials, a tool-less locking mechanism for securing the upper and lower sections, wherein the upper and lower sections together form an interior space for the receiving an ammonia-containing material canister. The heating jacket may also include a temperature regulating device within one of the upper section and the lower section for maintaining an activating temperature within a predefined limit for the controlled release of ammonia into the exhaust stream.
    Type: Application
    Filed: August 26, 2011
    Publication date: January 23, 2014
    Applicant: International Engine Intellectual Property Company, LLC
    Inventors: Gregory A. Griffin, Timothy Yoon, Jeffrey R. Kelso, David J. Nicholls, Jason B. Arriaga
  • Publication number: 20130153652
    Abstract: Systems and methods for determining amount of solid ammonia stored in a canister used in providing ammonia fluid in exhaust gas after-treatment systems. A microcontroller sets an ammonia level based on the data read from an RFID tag associated with the canister. The data may provide the amount of solid ammonia stored in the canister or a tag number that the microcontroller may use to retrieve the quantity of stored solid ammonia. A measured amount of ammonia fluid used during the treatment process may be used by the microcontroller in determining the amount of solid ammonia depleted from the canister. At predetermined precisions, the amount of depleted ammonia is subtracted from the set ammonia level to determine the remaining amount of solid ammonia in the canister. This determined amount of may be used to reset the ammonia level and be written onto the RFID tag.
    Type: Application
    Filed: July 6, 2012
    Publication date: June 20, 2013
    Applicant: International Engine Intellectual Property Company , LLC
    Inventors: David J. Nicholls, Jason B. Arriaga, Jeffrey R. Kelso
  • Publication number: 20090032269
    Abstract: Apparatus and method for applying novel horseshoes to the hoof of a horse comprising the steps of, establishing the apex of the hoof wall curve that defines each lateral side of the hoof wall, and applying a horseshoe to the hoof by aligning the longitudinal mid line of each arm of the horseshoe with the respective apex on each lateral side of the hoof wall and aligning the heels of the horseshoe arms with the caudal part of the central sulcus of the hoof's frog.
    Type: Application
    Filed: July 31, 2007
    Publication date: February 5, 2009
    Inventors: Eugene D. Ovnicek, David J. Nicholls, Mark S. Spriggs, Michael J. Williams, TFM Head
  • Patent number: 5670333
    Abstract: Expression vector for expressing the E. coli a polypeptide other than E. coli malate dehydrogenase coded for by a DNA coding sequence. The vector includes a DNA coding for the polypeptide and also includes an initiation codon wherein the DNA sequence is operatively linked to an upstream sequence located upstream of the initiation codon and which is capable of controlling expression of the polypeptide. The upstream sequence consists on the 285 base pair sequence defined by SEQ ID NO:3. A process for expressing a polypeptide by culturing a host strain of E. coli transformed with an expression vector of the invention is also provided.
    Type: Grant
    Filed: July 28, 1994
    Date of Patent: September 23, 1997
    Assignee: Public Health Laboratory Service Board
    Inventors: Richard M. Alldread, David J. Nicholls, Michael D. Scawen, Tony Atkinson