Patents by Inventor Walter A. Nichols

Walter A. Nichols 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: 10518804
    Abstract: A steering system and method for a vehicle having steerable front and rear wheels has rear hydraulic steering device that may be coupled to one or more of the rear wheels. A rear valve assembly may hydraulically control the rear hydraulic steering device to steer the rear wheels based upon a rear steering command from a controller. In a manual steering mode, the controller does not determine a rear steering command for the rear valve assembly such that the rear wheels are freely rotatable. In a rear steering assist mode, the controller determines the rear steering command based upon, at least in part, the manual steering input.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: December 31, 2019
    Assignee: DEERE & COMPANY
    Inventors: Thomas D. Bebernes, Thomas A. Nichols, David V. Rotole, Walter C. Wright, Eric R. Lang, Mitchell R. Usasz
  • Patent number: 9823259
    Abstract: A detection device for cannabinoid use including a base unit and a display screen disposed on the base unit. A central processing unit and a tetrahydrocannabinol testing device are disposed within the base unit. A testing slot is disposed on a bottom portion of the base unit, with a back end of the testing slot disposed within the tetrahydrocannabinol testing device. Each of a plurality of testing strips is slidably and removably disposed within the testing slot. A printer has a pair of T-shaped attachment extensions. Each of the pair of attachment extensions and a universal serial bus plug disposed on the printer simultaneously removably and slidably engages each of a pair of attachment slots and a universal serial bus port disposed on the base unit, respectively. The tetrahydrocannabinol testing device is configured to analyze and calculate the presence and amount of tetrahydrocannabinol in a person's bloodstream.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: November 21, 2017
    Inventor: Walter Nichols
  • Publication number: 20170087267
    Abstract: An air freshening device includes a liquid supply operable to supply liquid fragrance material, a wick in contact with the liquid supply, a conductive mesh material operable to retain the liquid material in interstices thereof, and a power supply operable to apply voltage across the mesh material so as to heat the mesh material and the liquid fragrance material contained in interstices of the mesh material to a temperature sufficient to vaporize the liquid. The air freshening device is operable to substantially prevent deposition of the vaporized liquid material.
    Type: Application
    Filed: December 8, 2016
    Publication date: March 30, 2017
    Applicant: Philip Morris USA Inc.
    Inventors: Christopher S. Tucker, Walter A. Nichols
  • Patent number: 9526808
    Abstract: An air freshening device includes a liquid supply operable to supply liquid fragrance material, a wick in contact with the liquid supply, a conductive mesh material operable to retain the liquid material in interstices thereof, and a power supply operable to apply voltage across the mesh material so as to heat the mesh material and the liquid fragrance material contained in interstices of the mesh material to a temperature sufficient to vaporize the liquid. The air freshening device is operable to substantially prevent deposition of the vaporized liquid material.
    Type: Grant
    Filed: October 13, 2010
    Date of Patent: December 27, 2016
    Assignee: Philip Morris USA Inc.
    Inventors: Christopher S. Tucker, Walter A. Nichols
  • Patent number: 8897630
    Abstract: An aerosol generator periodically forms aerosolized fragrance material by repeatedly supplying a liquid fragrance material to a capillary passage via only capillary action and heating the capillary passage, such that the liquid fragrance material at least partially volatilizes and is driven out of an outlet of the capillary passage. A wick feeds the liquid fragrance material to an inlet of the capillary passage by capillary action. An apparatus and method for generating such an aerosolized fragrance material, as well as the methods of heating, are disclosed.
    Type: Grant
    Filed: May 10, 2013
    Date of Patent: November 25, 2014
    Assignee: Philip Morris USA Inc.
    Inventors: Walter A. Nichols, David Keeler, Christopher Tucker
  • Patent number: 8662479
    Abstract: A respiratory humidification system having a capillary passage in communication with a ventilator, the ventilator adapted to deliver an air stream, a heater operable to at least partially vaporize water in the capillary passage, a pumping unit adapted to supply water to the capillary passage, wherein the water upon heating is at least partially vaporized to form an aerosol stream. The aerosol stream is combined with the air stream to form a humidified air stream.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: March 4, 2014
    Assignee: Philip Morris USA Inc.
    Inventors: Walter A. Nichols, Christopher S. Tucker, Amit Limaye
  • Publication number: 20130243410
    Abstract: An aerosol generator periodically forms aerosolized fragrance material by repeatedly supplying a liquid fragrance material to a capillary passage via only capillary action and heating the capillary passage, such that the liquid fragrance material at least partially volatilizes and is driven out of an outlet of the capillary passage. A wick feeds the liquid fragrance material to an inlet of the capillary passage by capillary action. An apparatus and method for generating such an aerosolized fragrance material, as well as the methods of heating, are disclosed.
    Type: Application
    Filed: May 10, 2013
    Publication date: September 19, 2013
    Applicant: Philip Morris USA Inc.
    Inventors: Walter A. Nichols, David Keeler, Christopher Tucker
  • Patent number: 8442390
    Abstract: An aerosol generator periodically forms aerosolized fragrance material by repeatedly supplying a liquid fragrance material to a capillary passage via only capillary action and heating the capillary passage, such that the liquid fragrance material at least partially volatilizes and is driven out of an outlet of the capillary passage. A wick feeds the liquid fragrance material to an inlet of the capillary passage by capillary action. An apparatus and method for generating such an aerosolized fragrance material, as well as the methods of heating, are disclosed.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: May 14, 2013
    Assignee: Philip Morris USA Inc.
    Inventors: Walter A. Nichols, David Keeler, Christopher Tucker
  • Publication number: 20130068225
    Abstract: A respiratory humidification system having a capillary passage in communication with a ventilator, the ventilator adapted to deliver an air stream, a heater operable to at least partially vaporize water in the capillary passage, a pumping unit adapted to supply water to the capillary passage, wherein the water upon heating is at least partially vaporized to form an aerosol stream. The aerosol stream is combined with the air stream to form a humidified air stream.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 21, 2013
    Applicant: Philip Morris USA Inc.
    Inventors: Walter A. Nichols, Christopher S. Tucker, Amit Limaye
  • Patent number: 8282084
    Abstract: A respiratory humidification system having a capillary passage in communication with a ventilator, the ventilator adapted to deliver an air stream, a heater operable to at least partially vaporize water in the capillary passage, a pumping unit adapted to supply water to the capillary passage, wherein the water upon heating is at least partially vaporized to form an aerosol stream. The aerosol stream is combined with the air stream to form a humidified air stream.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: October 9, 2012
    Assignee: Philip Morris USA Inc.
    Inventors: Walter A. Nichols, Christopher S. Tucker, Amit Limaye
  • Publication number: 20120006324
    Abstract: A respiratory humidification system having a capillary passage in communication with a ventilator, the ventilator adapted to deliver an air stream, a heater operable to at least partially vaporize water in the capillary passage, a pumping unit adapted to supply water to the capillary passage, wherein the water upon heating is at least partially vaporized to form an aerosol stream. The aerosol stream is combined with the air stream to form a humidified air stream.
    Type: Application
    Filed: September 22, 2011
    Publication date: January 12, 2012
    Applicant: Philip Morris USA Inc.
    Inventors: Walter A. Nichols, Christopher S. Tucker, Amit Limaye
  • Patent number: 8088807
    Abstract: A microbicidal composition comprising relatively high levels of a mixture of 5-chloro-2-methyl-4-isothiazolin-3-one and 2-methyl-4-isothiazolin-3-one; a metal nitrate; and water. The composition optionally contains magnesium chloride.
    Type: Grant
    Filed: May 29, 2007
    Date of Patent: January 3, 2012
    Assignee: Rohm and Haas Company
    Inventors: Mary Jo Bergbauer, John Vincent Berrier, Richard Walter Nichols
  • Patent number: 8052127
    Abstract: A respiratory humidification system having a capillary passage in communication with a ventilator, the ventilator adapted to deliver an air stream, a heater operable to at least partially vaporize water in the capillary passage, a pumping unit adapted to supply water to the capillary passage, wherein the water upon heating is at least partially vaporized to form an aerosol stream. The aerosol stream is combined with the air stream to form a humidified air stream.
    Type: Grant
    Filed: October 16, 2008
    Date of Patent: November 8, 2011
    Assignee: Philip Morris USA Inc.
    Inventors: Walter A. Nichols, Christopher S. Tucker, Amit Limaye
  • Publication number: 20110253798
    Abstract: An air freshening device includes a liquid supply operable to supply liquid fragrance material, a wick in contact with the liquid supply, a conductive mesh material operable to retain the liquid material in interstices thereof, and a power supply operable to apply voltage across the mesh material so as to heat the mesh material and the liquid fragrance material contained in interstices of the mesh material to a temperature sufficient to vaporize the liquid. The air freshening device is operable to substantially prevent deposition of the vaporized liquid material.
    Type: Application
    Filed: October 13, 2010
    Publication date: October 20, 2011
    Applicant: Philip Morris USA Inc.
    Inventors: Christopher S. Tucker, Walter A. Nichols
  • Patent number: 7743766
    Abstract: An aerosol generating device includes a housing, a heater and an optional mouthpiece. The heater volatilizes liquid within a flow passage and forms an aerosol in the mouthpiece. An aerosol confinement sleeve is disposed to control the size distribution of the aerosol.
    Type: Grant
    Filed: June 1, 2005
    Date of Patent: June 29, 2010
    Assignee: Philip Morris USA Inc.
    Inventors: Rajiv Gupta, Douglas D. McRae, Kenneth A. Cox, Walter A. Nichols
  • Patent number: 7625548
    Abstract: Liquid nanoscale particle precursor materials for generating nanoscale particles include at least one high volatility carrier and a second component. A nanoscale particle generating device generates nanoscale particles by passing a liquid nanoscale particle precursor material through a flow passage heated to convert the carrier into a vapor and the second component into nanoscale particles. The nanoscale particles preferably consist essentially of the second component and can consist essentially of dry, solid particles. The particle generator can be incorporated in a hand held inhaler, and can be delivered to a targeted portion of the lung using the inhaler. Composite controlled release particles of micron or nanoscale size can be produced by flowing a solution of medicament, control release agent and carrier liquid through a capillary heater.
    Type: Grant
    Filed: May 5, 2008
    Date of Patent: December 1, 2009
    Assignee: Philip Morris USA Inc.
    Inventors: Tung T. Nguyen, Nina Brown, Jui C. Lin, Stephen Pham, Kenneth A. Cox, Douglas D. McRae, Walter A. Nichols
  • Publication number: 20090267242
    Abstract: A respiratory humidification system having a capillary passage in communication with a ventilator, the ventilator adapted to deliver an air stream, a heater operable to at least partially vaporize water in the capillary passage, a pumping unit adapted to supply water to the capillary passage, wherein the water upon heating is at least partially vaporized to form an aerosol stream. The aerosol stream is combined with the air stream to form a humidified air stream.
    Type: Application
    Filed: October 16, 2008
    Publication date: October 29, 2009
    Applicant: Philip Morris USA Inc.
    Inventors: Walter A. Nichols, Christopher S. Tucker, Amit Limaye
  • Publication number: 20090194607
    Abstract: An aerosol generator periodically forms aerosolized fragrance material by repeatedly supplying a liquid fragrance material to a capillary passage via only capillary action and heating the capillary passage, such that the liquid fragrance material at least partially volatilizes and is driven out of an outlet of the capillary passage. A wick feeds the liquid fragrance material to an inlet of the capillary passage by capillary action. An apparatus and method for generating such an aerosolized fragrance material, as well as the methods of heating, are disclosed.
    Type: Application
    Filed: August 28, 2008
    Publication date: August 6, 2009
    Applicant: Philip Morris USA Inc.
    Inventors: Walter A. Nichols, David Keeler, Christopher Tucker
  • Patent number: 7500479
    Abstract: An aerosol generator includes a flow passage having an inlet end, an outlet end, and a constriction in the flow passage at the outlet end. A heater is operable to heat liquid in the flow passage to produce a vapor, which is expelled from the outlet end of the flow passage.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: March 10, 2009
    Assignee: Philip Morris USA Inc.
    Inventors: Walter A. Nichols, Rajiv Gupta, Gene G. Faison, Kenneth A. Cox
  • Patent number: 7458373
    Abstract: An aerosol generator such as a hand-held inhaler and method of delivering aerosol to a user inhaling on an outlet of a mouthpiece when a pressure drop is detected within the mouthpiece. A medicated fluid passing through a capillary passage is heated sufficiently to vaporize the fluid and form the aerosol by condensation of the vaporized fluid as it admixes with air. Air is supplied to the mouthpiece through an air passage which is initially closed during detection of the pressure drop. A metering chamber allows consistent delivery of precise doses of fluid to the capillary passage. The pressure drop is detected before air is supplied to the mouthpiece with the result that the aerosol can be quickly delivered to the user as the user begins to inhale on the mouthpiece. The quick delivery of aerosol provides more efficient use of the user's lung capacity.
    Type: Grant
    Filed: January 14, 2003
    Date of Patent: December 2, 2008
    Assignee: Philip Morris USA Inc.
    Inventors: Walter A. Nichols, Donald L. Brookman, Gary E. Grollimund, Ulysses Smith