Patents by Inventor W. Scott Finlayson

W. Scott Finlayson 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: 6463925
    Abstract: A catalytic heater supplies heated water that circulates to heat a diver's suit. An insulating housing closed at opposite ends by cap members defines a chamber containing a catalyst inside of a multi-tube heat exchanger. Fittings in the cap members pass water through the multi-tube heat exchanger to and from the suit, and a gas circuit flows mixed hydrogen and oxygen to the catalyst that reacts with the mixed hydrogen and oxygen to produce heat that heats the water in the multi-tube heat exchanger for the diving suit. Optionally, hydrogen may be mixed with oxygen from a breathing gas mixture so that after heating the water, the gases remaining may be breathed by the diver. The catalytic heater provides a safe, reliable source of warm water for active thermal protection of divers over a wide range of diving applications.
    Type: Grant
    Filed: January 24, 2001
    Date of Patent: October 15, 2002
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Marshall L. Nuckols, Kirk Van Zandt, W. Scott Finlayson, Kenneth Price
  • Patent number: 6408847
    Abstract: A semi-closed circuit rebreather system that adapts to a user's activity level is provided. A vacuum pressure develops in a chamber coupled to a mouthbit as a breathing gas is drawn by the user from the chamber. A positive pressure develops in the chamber as an exhalation gas is expelled by the user into the chamber. An open circuit is coupled to the chamber to supply an increasing mass of fresh make-up gas to the chamber as vacuum pressure in the chamber develops and increases. A closed circuit coupled to the chamber receives and processes the exhalation gas to produce a recycled gas suitable for breathing. No recycled gas is supplied to the chamber until a threshold vacuum pressure is reached therein. The threshold vacuum pressure is indicative of a higher level of respiratory minute volume (RMV). At that point, a volume of recycled gas is supplied to the chamber proportionally with respect to increases in the mass of fresh make-up gas as vacuum pressure increases beyond the threshold vacuum pressure.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: June 25, 2002
    Inventors: Marshall L. Nuckols, W. Scott Finlayson
  • Publication number: 20010018915
    Abstract: A catalytic heater supplies heated water that circulates to heat a diver's suit. An insulating housing closed at opposite ends by cap members defines a chamber containing a catalyst inside of a multi-tube heat exchanger. Fittings in the cap members pass water through the multi-tube heat exchanger to and from the suit, and a gas circuit flows mixed hydrogen and oxygen to the catalyst that reacts with the mixed hydrogen and oxygen to produce heat that heats the water in the multi-tube heat exchanger for the diving suit. Optionally, hydrogen may be mixed with oxygen from a breathing gas mixture so that after heating the water, the gases remaining may be breathed by the diver. The catalytic heater provides a safe, reliable source of warm water for active thermal protection of divers over a wide range of diving applications.
    Type: Application
    Filed: January 24, 2001
    Publication date: September 6, 2001
    Applicant: The United States of America represented by the Secretary of the Navy
    Inventors: Marshall L. Nuckols, Kirk Van Zandt, W. Scott Finlayson, Kenneth Price