Patents by Inventor Howard D. Jenkel

Howard D. Jenkel 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: 8713795
    Abstract: A remanufacturing and salvaging strategy for fuel injector tips such as high flow fuel injector tips includes blocking a first set of spray orifices in the fuel injector tip, including at least partially filling the first set of spray orifices with a material, for example by laser welding. New spray orifices are formed in virgin material of the fuel injector tip, offset from the former spray orifices, also for example via a laser. A remanufactured fuel injector tip includes blocked former spray orifices as well as new spray orifices configured to permit spraying of fuel from the fuel injector tip.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: May 6, 2014
    Assignee: Caterpillar Inc.
    Inventors: Howard D. Jenkel, James S. Millar
  • Publication number: 20110248101
    Abstract: A remanufacturing and salvaging strategy for fuel injector tips such as high flow fuel injector tips includes blocking a first set of spray orifices in the fuel injector tip, including at least partially filling the first set of spray orifices with a material, for example by laser welding. New spray orifices are formed in virgin material of the fuel injector tip, offset from the former spray orifices, also for example via a laser. A remanufactured fuel injector tip includes blocked former spray orifices as well as new spray orifices configured to permit spraying of fuel from the fuel injector tip.
    Type: Application
    Filed: June 23, 2011
    Publication date: October 13, 2011
    Applicant: CATERPILLAR, INC.
    Inventors: Howard D. Jenkel, James S. Millar
  • Patent number: 8007606
    Abstract: An improved method for salvaging a spring element with a degraded force constant for return to a work environment. The spring element is subjected to a high temperature and extended duration annealing treatment alone or in combination with other treatments. The resultant salvaged spring is characterized by a more durable force constant relative to the original spring when it was new.
    Type: Grant
    Filed: June 25, 2008
    Date of Patent: August 30, 2011
    Assignee: Caterpillar Inc.
    Inventors: Sami El-Sayed, Howard D. Jenkel, Paul May
  • Patent number: 7984550
    Abstract: A remanufacturing and salvaging strategy for fuel injector tips such as high flow fuel injector tips includes blocking a first set of spray orifices in the fuel injector tip, including at least partially filling the first set of spray orifices with a material, for example by laser welding. New spray orifices are formed in virgin material of the fuel injector tip, offset from the former spray orifices, also for example via a laser. A remanufactured fuel injector tip includes blocked former spray orifices as well as new spray orifices configured to permit spraying of fuel from the fuel injector tip.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: July 26, 2011
    Assignee: Caterpillar Inc.
    Inventors: Howard D. Jenkel, James S. Millar
  • Publication number: 20090320970
    Abstract: An improved method for salvaging a spring element with a degraded force constant for return to a work environment. The spring element is subjected to a high temperature and extended duration annealing treatment alone or in combination with other treatments. The resultant salvaged spring is characterized by a more durable force constant relative to the original spring when it was new.
    Type: Application
    Filed: June 25, 2008
    Publication date: December 31, 2009
    Applicant: Caterpillar Inc.
    Inventors: Sami El-Sayed, Howard D. Jenkel, Paul May
  • Publication number: 20090224079
    Abstract: A fuel injector includes an injector body having a plurality of body components, including an insert positioned within a second body component. The insert includes a conical valve seat and is attached to the second body component with a plurality of welds each including a stitch straddling a perimetric interface between the insert and the second body component. A remanufacturing process such as for a valve body of a fuel injector includes removing the damaged valve seat from within a salvaged valve body, and forming a substitute valve seat in an insert welded to the valve body with a plurality of crack free welds. Each of the welds includes a stitch straddling a perimetric interface between the insert and the valve body, and the insert may be formed of 52100 steel. Other machine components subjected to axial loading may be welded and otherwise processed in manufacturing or remanufacturing as described herein.
    Type: Application
    Filed: March 4, 2008
    Publication date: September 10, 2009
    Inventors: Kirk Johnson, Shane Price, Evgeni Sychev, Francis E. Erbes, Howard D. Jenkel, James S. Millar
  • Publication number: 20080120840
    Abstract: A remanufacturing and salvaging strategy for fuel injector tips such as high flow fuel injector tips includes blocking a first set of spray orifices in the fuel injector tip, including at least partially filling the first set of spray orifices with a material, for example by laser welding. New spray orifices are formed in virgin material of the fuel injector tip, offset from the former spray orifices, also for example via a laser. A remanufactured fuel injector tip includes blocked former spray orifices as well as new spray orifices configured to permit spraying of fuel from the fuel injector tip.
    Type: Application
    Filed: October 30, 2006
    Publication date: May 29, 2008
    Inventors: Howard D. Jenkel, James S. Millar
  • Patent number: 4206725
    Abstract: An engine structure (12) wherein a fuel injector nozzle (11) is retained in accurate preselected association with the cylinder head (16) by an improved clamp (20). The clamp is associated with a force-applying device (24) and the nozzle head (13) so as to provide an accurate transfer of force from the force-applying device (24) to the nozzle parallel to the longitudinal axis (20) of the nozzle and in a manner accurately positioning the nozzle about its longitudinal axis. The clamp is associated with the force-applying device and the nozzle head so as to have non-surface engagement between the force transfer portions (21,28, 31,19, and 34,35) and in the illustrated form, utilizes line contact force transfers therebetween. The line contacts are preselected so as to be parallel to each other in providing the desirable accurate force transfer.
    Type: Grant
    Filed: November 29, 1978
    Date of Patent: June 10, 1980
    Assignee: Caterpillar Tractor Co.
    Inventors: Howard D. Jenkel, Victor L. Sheldon, Jr.