Patents by Inventor James R. Allman

James R. Allman 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).

  • Multi-chambered muffler
    Patent number: 6659222
    Abstract: A muffler includes an outer shell which defines a chamber. A baffle is positioned in the chamber. A pair of plates cooperate with the baffle to partition the chamber into subchambers.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: December 9, 2003
    Assignee: ArvinMeritor, Inc.
    Inventor: James R. Allman
  • Stamp-formed muffler
    Patent number: 6257367
    Abstract: A muffler includes an outer shell defining a chamber and a pair of inner plates positioned in the chamber. Each inner plate includes first and second folds partitioning each of the inner plates into a base portion, a first baffle portion, and a second baffle portion. The base portions cooperate to define a first baffle. The first baffle portions cooperate to define a second baffle and the second baffle portions cooperates to define a third baffle. The first, second, and third baffles partition the chamber defined by the outer shell into subchambers. The first baffle includes a tube and each of the second and third baffles include a tube-receiving aperture sized to receive the tube of the first baffle.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: July 10, 2001
    Assignee: ArvinMeritor, Inc.
    Inventor: James R. Allman
  • Stamp-formed muffler
    Patent number: 6199659
    Abstract: A muffler includes an outer shell defining a chamber and first and second inner plates positioned to lie in the chamber. The second inner plate includes a base portion, a baffle integral with the base portion, and a tube portion integral with the base portion. The base portion includes an outer periphery defining a base portion boundary. The baffle extends between the base portion and the outer shell and the tube portion is positioned outside the boundary of the base portion.
    Type: Grant
    Filed: March 5, 1999
    Date of Patent: March 13, 2001
    Assignee: Arvin Industries, Inc.
    Inventor: James R. Allman
  • Muffler
    Patent number: 6164412
    Abstract: A muffler includes an outer shell defining a chamber and first and second tubes positioned in the chamber. The first tube has a flat side wall and the second tube has a flat side wall positioned adjacent to the fiat side wall of the first tube. Muffler further includes a baffle plate including a base and an edge defining a tube-receiving aperture and the first and second tube are positioned in the tube-receiving aperture.
    Type: Grant
    Filed: April 2, 1999
    Date of Patent: December 26, 2000
    Assignee: Arvin Industries, Inc.
    Inventor: James R. Allman
  • Stamp-formed muffler
    Patent number: 6135237
    Abstract: A muffler comprises an outer shell defining a chamber, a baffle positioned in the chamber defined by the outer shell, and an inner plate positioned in the chamber. The inner plate includes a channel and a ridge coupled to the channel. The ridge extends away from the channel. The baffle includes an outer edge positioned adjacent to the outer shell and an inner edge positioned adjacent to the ridge and spaced apart from the channel.
    Type: Grant
    Filed: April 2, 1999
    Date of Patent: October 24, 2000
    Assignee: Arvin Industries, Inc.
    Inventor: James R. Allman