Patents by Inventor Rob S. Karnbach

Rob S. Karnbach 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: 9871358
    Abstract: A unique electrical switchgear system may include a circuit breaker compartment having a compartment wall. The electrical switchgear system may also include a tapered floor pan mounted on the compartment wall. The floor pan may have two side walls disposed oblique to each other; a back wall; and a top wall coupled to the side walls and defining a discharge opening adjacent to the back wall. The two side walls, the top wall and the compartment wall may form a tunnel for channeling cooling air in a first direction. The back wall may be operative to redirect the cooling air in a second direction different from the first direction for discharging the cooling air from the discharge opening.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: January 16, 2018
    Assignee: ABB Schweiz AG
    Inventors: Rahul Pawar, Rob S Karnbach
  • Patent number: 9516784
    Abstract: An electrical switchgear system includes a first compartment supplied with cooling air and in fluid communication with an exhaust plenum. A second compartment is in fluid communication with the exhaust plenum. A deflector is operative to deflect an amount of the cooling air from the first compartment and direct it into the second compartment. An electrical switchgear system having switchgear in an enclosure includes a first compartment disposed inside the enclosure and supplied with cooling air. A second compartment is disposed inside the enclosure. A deflector is operative to capture an amount of the cooling air from the first compartment and direct it into the second compartment.
    Type: Grant
    Filed: February 18, 2015
    Date of Patent: December 6, 2016
    Assignee: ABB Schweiz AG
    Inventors: Rahul Pawar, Rob S Karnbach
  • Publication number: 20160242315
    Abstract: An electrical switchgear system includes a first compartment supplied with cooling air and in fluid communication with an exhaust plenum. A second compartment is in fluid communication with the exhaust plenum. A deflector is operative to deflect an amount of the cooling air from the first compartment and direct it into the second compartment. An electrical switchgear system having switchgear in an enclosure includes a first compartment disposed inside the enclosure and supplied with cooling air. A second compartment is disposed inside the enclosure. A deflector is operative to capture an amount of the cooling air from the first compartment and direct it into the second compartment.
    Type: Application
    Filed: February 18, 2015
    Publication date: August 18, 2016
    Applicant: ABB Technology Ltd.
    Inventors: Rahul Pawar, Rob S. Karnbach
  • Publication number: 20160226228
    Abstract: A unique electrical switchgear system may include a circuit breaker compartment having a compartment wall. The electrical switchgear system may also include a tapered floor pan mounted on the compartment wall. The floor pan may have two side walls disposed oblique to each other; a back wall; and a top wall coupled to the side walls and defining a discharge opening adjacent to the back wall. The two side walls, the top wall and the compartment wall may form a tunnel for channeling cooling air in a first direction. The back wall may be operative to redirect the cooling air in a second direction different from the first direction for discharging the cooling air from the discharge opening.
    Type: Application
    Filed: January 30, 2015
    Publication date: August 4, 2016
    Applicant: ABB Technology Ltd.
    Inventors: Rahul Pawar, Rob S. Karnbach