Patents by Inventor Carl I. Swanson

Carl I. Swanson 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).

  • Multiple redundant suppression devices with provision of supervision and fault correction
    Patent number: 4520348
    Abstract: An electrical protection system including a plurality of suppressor units each activatable by either a first or a second electrical current responsive activator to suppress abnormal condition. The system further includes a supervisory electrical current source, an activation electrical current source, a first connector circuit connecting all of the first activators in series and a second connector circuit connecting all of the second activators in series. A control circuit connects the supervisory source in parallel with the first and second connector circuits so as to provide in each a predetermined supervisory current that is insufficient to energize the activators.
    Type: Grant
    Filed: July 13, 1983
    Date of Patent: May 28, 1985
    Assignee: Kidde, Inc.
    Inventor: Carl I. Swanson
  • Fire protection apparatus
    Patent number: 4162485
    Abstract: A multi-zone fire protection system in which each protected zone is provided with a detector for producing an alarm signal in response to the presence of combustion products, a source of fire extinguishing agent, and a pull box station manually operable to induce discharge of the extinguishing agent into the protected zone. Each pull station possesses a signal lamp that can be energized to signal an abnormal condition to personnel present in the area. A signal lamp in a given zone is energized via a central control panel in response to an alarm signal from a detector associated with that zone, thereby clearly indicating to personnel at hand the specific zone in which a fire has been detected.
    Type: Grant
    Filed: January 7, 1977
    Date of Patent: July 24, 1979
    Assignee: Walter Kidde and Company, Inc.
    Inventors: Enio Facchini, Carl I. Swanson
  • Fire protection apparatus
    Patent number: 4017844
    Abstract: A multi-zone fire protection system in which each protected zone is provided with a detector for producing an alarm signal in response to the presence of combustion products, a source of fire extinguishing agent, and a pull box station manually operable to induce discharge of the extinguishing agent into the protected zone. Each pull station possesses a signal lamp that can be energized to signal an abnormal condition to personnel present in the area. A signal lamp in a given zone is energized via a central control panel in response to an alarm signal from a detector associated with that zone, thereby clearly indicating to personnel at hand the specific zone in which a fire has been detected.
    Type: Grant
    Filed: July 14, 1975
    Date of Patent: April 12, 1977
    Assignee: Walter Kidde & Company, Inc.
    Inventors: Enio Facchini, Carl I. Swanson