Patents by Inventor Cynthia Ann Stuvel

Cynthia Ann Stuvel 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).

  • Engine assembly with camshaft housing
    Patent number: 8534251
    Abstract: An engine assembly may include an engine structure, a first camshaft housing assembly and a first camshaft assembly. The first camshaft housing assembly may be supported by the engine structure and have a first portion providing a first plurality of bearing support surfaces on a first side and a second portion coupled to the first portion and providing a second plurality of bearing support surfaces on a second side opposite the first side. The first camshaft assembly may be rotationally supported by the first camshaft housing assembly and arranged between the first portion and second portion.
    Type: Grant
    Filed: October 4, 2010
    Date of Patent: September 17, 2013
    Inventors: Rodney E. Baker, Brian W. Geiser, Cynthia Ann Stuvel, Gary L. Nye
  • Compact second order balance shaft arrangement with low inertia driven shaft
    Patent number: 8468995
    Abstract: A balancer assembly for an engine includes a first balance shaft and a second balance shaft parallel with and laterally spaced from the first balance shaft. The first balance shaft includes a first counterweight portion and a second counterweight portion axially spaced from each other, with each defining a first radius. The second balance shaft includes a central counterweight defining a second radius. The central counterweight is axially disposed between the first counterweight portion and the second counterweight portion to allow a radial overlap with the first counterweight portion and the second counterweight portion, with the first radius being greater than the second radius.
    Type: Grant
    Filed: July 22, 2010
    Date of Patent: June 25, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Robert Lionel Jacques, Cynthia Ann Stuvel
  • ENGINE ASSEMBLY WITH CAMSHAFT HOUSING
    Publication number: 20110277725
    Abstract: An engine assembly may include an engine structure, a first camshaft housing assembly and a first camshaft assembly. The first camshaft housing assembly may be supported by the engine structure and have a first portion providing a first plurality of bearing support surfaces on a first side and a second portion coupled to the first portion and providing a second plurality of bearing support surfaces on a second side opposite the first side. The first camshaft assembly may be rotationally supported by the first camshaft housing assembly and arranged between the first portion and second portion.
    Type: Application
    Filed: October 4, 2010
    Publication date: November 17, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: RODNEY E. BAKER, BRIAN W. GEISER, CYNTHIA ANN STUVEL, GARY L. NYE
  • COMPACT SECOND ORDER BALANCE SHAFT ARRANGEMENT WITH LOW INERTIA DRIVEN SHAFT
    Publication number: 20110277720
    Abstract: A balancer assembly for an engine includes a first balance shaft and a second balance shaft parallel with and laterally spaced from the first balance shaft. The first balance shaft includes a first counterweight portion and a second counterweight portion axially spaced from each other, with each defining a first radius. The second balance shaft includes a central counterweight defining a second radius. The central counterweight is axially disposed between the first counterweight portion and the second counterweight portion to allow a radial overlap with the first counterweight portion and the second counterweight portion, with the first radius being greater than the second radius.
    Type: Application
    Filed: July 22, 2010
    Publication date: November 17, 2011
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Robert Lionel Jacques, Cynthia Ann Stuvel