Patents by Inventor Baljit Sierra

Baljit Sierra 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).

  • Exhaust subsystem with fiber pipe and method of forming fiber pipe
    Patent number: 11339704
    Abstract: A substantially metal-free exhaust subsystem includes an exterior housing formed of polymer; and a pipe formed of a layered fibers formed at least partially of glass, and bound by an inorganic binder. The fibers may be glass or ceramic, and may define micro-pores on the interior of the pipe that aid in absorbing acoustic energy, and thereby attenuating exhaust noise.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: May 24, 2022
    Assignee: NOVO PLASTICS INC.
    Inventors: Baljit Sierra, Udo Gaertner
  • EXHAUST SUBSYSTEM WITH FIBER PIPE AND METHOD OF FORMING FIBER PIPE
    Publication number: 20190353078
    Abstract: A substantially metal-free exhaust subsystem includes an exterior housing formed of polymer; and a pipe formed of a layered fibers formed at least partially of glass, and bound by an inorganic binder. The fibers may be glass or ceramic, and may define micro-pores on the interior of the pipe that aid in absorbing acoustic energy, and thereby attenuating exhaust noise.
    Type: Application
    Filed: November 18, 2016
    Publication date: November 21, 2019
    Inventors: Baljit Sierra, Udo Gaertner
  • Exhaust subsystem with polymer housing
    Patent number: 9194513
    Abstract: A vehicle exhaust system includes a subsystem having an exterior pipe formed of a polymer. A rigid liner extends along the length of the exterior pipe and defines a passageway. A fiber insulating layer is formed between the rigid liner and the exterior pipe. The liner is formed to define at least one groove circumscribing the periphery of the passageway. The groove defines a region of increased volume of the exhaust passage along the length. The liner is further formed to define at least one void extending between the wall of the liner and the insulating layer, around the periphery of the passageway. A plurality of apertures in the liner, allow sound waves to pass from the passageway into the fiber insulating layer, and into the void.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: November 24, 2015
    Inventor: Baljit Sierra
  • EXHAUST SUBSYSTEM WITH POLYMER HOUSING
    Publication number: 20130126034
    Abstract: A vehicle exhaust system includes a subsystem having an exterior pipe formed of a polymer. A rigid liner extends along the length of the exterior pipe and defines a passageway. A fiber insulating layer is formed between the rigid liner and the exterior pipe. The liner is formed to define at least one groove circumscribing the periphery of the passage-way. The groove defines a region of increased volume of the exhaust passage along the length. The liner is further formed to define at least one void extending between the wall of the liner and the insulating layer, around the periphery of the passageway. A plurality of apertures in the liner, allow sound waves to pass from the passageway into the fiber insulating layer, and into the void.
    Type: Application
    Filed: March 23, 2010
    Publication date: May 23, 2013
    Applicant: NOVO Plastics Inc.
    Inventor: Baljit Sierra