Patents by Inventor Charles E. Lewis

Charles E. Lewis 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: 8682528
    Abstract: A suspension system for a mobile machine is disclosed. The suspension system may have a seat operatively connected to a cabin floor of the mobile machine, a cylinder connected between the seat and the cabin floor, and a spring associated with the cylinder. The suspension system may also have at least one valve configured to regulate fluid flow into and out of the cylinder, and a controller in communication with the at least one valve. The controller may be configured to detect a failure condition of the suspension system. In response to detection of the failure condition, the controller may be further configured to cause the at least one valve to move to a default position at which fluid flow into and out of the cylinder is restricted by an amount that still allows fluid flow through the at least one valve.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: March 25, 2014
    Assignee: Caterpillar Inc.
    Inventors: Michael S. Contratto, John C. Spangler, Jr., Charles E. Lewis, II, Florin M. Marcu, Kristen A. Gerstner
  • Publication number: 20130158791
    Abstract: A suspension system for a mobile machine is disclosed. The suspension system may have a seat operatively connected to a cabin floor of the mobile machine, a cylinder connected between the seat and the cabin floor, and a spring associated with the cylinder. The suspension system may also have at least one valve configured to regulate fluid flow into and out of the cylinder, and a controller in communication with the at least one valve. The controller may be configured to detect a failure condition of the suspension system. In response to detection of the failure condition, the controller may be further configured to cause the at least one valve to move to a default position at which fluid flow into and out of the cylinder is restricted by an amount that still allows fluid flow through the at least one valve.
    Type: Application
    Filed: April 17, 2012
    Publication date: June 20, 2013
    Inventors: Michael S. CONTRATTO, John C. Spangler, JR., Charles E. Lewis, II, Florin M. Marcu, Kristen A. Gerstner
  • Publication number: 20130153320
    Abstract: A suspension system for a mobile machine is disclosed. The suspension system may have at least one sensor configured to detect a performance parameter of the mobile machine, and a seat operatively connected to a cabin floor of the mobile machine. The suspension system may also have a cylinder connected between the seat and the cabin floor, and a spring associated with the cylinder. The suspension system may additionally have a controller in communication with the at least one sensor. The controller may be configured to make a classification of an operation currently being performed by the mobile machine based on input from the at least one sensor, and to select for use in controlling movement of at least one of the cylinder and the spring one of a plurality of available maps stored in the memory of the controller based on the classification.
    Type: Application
    Filed: April 17, 2012
    Publication date: June 20, 2013
    Inventors: Michael S. CONTRATTO, Charles E. Lewis, II, John C. Spangler, JR., Johnathan C. Catton
  • Patent number: 8186658
    Abstract: A suspension system for a seat assembly of a machine includes an upper support member and a lower support member. A plurality of vertically aligned guide pins interconnect the upper and lower support members, and are telescopically movable to adjust a distance between the upper and lower support members. A plurality of suspension devices are operatively connected to the upper and lower support members for biasing the upper support member away from the lower support member.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: May 29, 2012
    Assignee: Caterpillar Inc.
    Inventor: Charles E. Lewis, II
  • Publication number: 20100052356
    Abstract: A suspension system for a seat assembly of a machine includes an upper support member and a lower support member. An array of fluid chambers is operatively connected to the upper and lower support members. Each of the fluid chambers includes an electronically controlled valve for controlling an amount of fluid within the fluid chambers. An elastomer is coupled between the upper support member and the lower support member. An electronic controller is in communication with each of the electronically controlled valves and is configured to actuate the valves in response to a movement of the machine.
    Type: Application
    Filed: September 4, 2008
    Publication date: March 4, 2010
    Inventor: Charles E. Lewis, II
  • Publication number: 20090189407
    Abstract: A suspension system for a seat assembly of a machine includes an upper support member and a lower support member. A plurality of vertically aligned guide pins interconnect the upper and lower support members, and are telescopically movable to adjust a distance between the upper and lower support members. A plurality of suspension devices are operatively connected to the upper and lower support members for biasing the upper support member away from the lower support member.
    Type: Application
    Filed: January 29, 2008
    Publication date: July 30, 2009
    Inventor: Charles E. Lewis, II
  • Patent number: 7279226
    Abstract: A composition and method for inhibiting stain formation in a floor covering. The composition includes a copper glycine complex in combination with magnesium hydroxide and a carrier. The composition can be advantageously applied to a wood-based substrate upon which a floor covering is overlaid. Flooring assemblies that include the composition are also provided.
    Type: Grant
    Filed: June 25, 2003
    Date of Patent: October 9, 2007
    Assignee: Weyerhaeuser Company
    Inventors: Jack G. Winterowd, Jerry D. Izan, Charles E. Lewis, Tri Tran, Daniel V. Hanson
  • Publication number: 20040265613
    Abstract: A composition and method for inhibiting stain formation in a floor covering. The composition includes a copper glycine complex in combination with magnesium hydroxide and a carrier. The composition can be advantageously applied to a wood-based substrate upon which a floor covering is overlaid. Flooring assemblies that include the composition are also provided.
    Type: Application
    Filed: June 25, 2003
    Publication date: December 30, 2004
    Inventors: Jack G. Winterowd, Jerry D. Izan, Charles E. Lewis, Tri Tran, Daniel V. Hanson
  • Patent number: 6803091
    Abstract: In one aspect, the present invention provides a formulation for sealing the edge of a wood-based panel. The formulation includes a butylacrylate latex, a solution of a wax in oil, a surfactant, and water. In another aspect of the invention, a wood-based panel that is edge-sealed with a sealant formulation is provided.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: October 12, 2004
    Inventors: Jack G. Winterowd, Charles E. Lewis, Jerry D. Izan, Roger M. Shantz
  • Publication number: 20040013857
    Abstract: In one aspect, the present invention provides a formulation for sealing the edge of a wood-based panel. The formulation includes a butylacrylate latex, a solution of a wax in oil, a surfactant, and water. In another aspect of the invention, a wood-based panel that is edge-sealed with a sealant formulation is provided.
    Type: Application
    Filed: June 24, 2003
    Publication date: January 22, 2004
    Applicant: Weyerhaeuser Company
    Inventors: Jack G. Winterowd, Charles E. Lewis, Jerry D. Izan, Roger M. Shantz
  • Patent number: 6608131
    Abstract: In one aspect, the present invention provides a formulation for sealing the edge of a wood-based panel. The formulation includes a butylacrylate latex, a solution of a wax in oil, a surfactant, and water. In another aspect of the invention, a wood-based panel that is edge-sealed with a sealant formulation is provided.
    Type: Grant
    Filed: July 19, 2000
    Date of Patent: August 19, 2003
    Assignee: Weyerhaeuser Company
    Inventors: Jack G. Winterowd, Charles E. Lewis, Jerry D. Izan, Roger M. Shantz
  • Patent number: 6489037
    Abstract: A coating that inhibits stain formation in floor covering. The coating includes a copper amine complex, preferably a copper morpholine complex, and is advantageously applied to an underlayment upon which a floor covering is adhered. Coated panels and floor assemblies that include the coating are also described.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: December 3, 2002
    Assignee: Weyerhaeuser Company
    Inventors: Jack G. Winterowd, Jerry D. Izan, Charles E. Lewis, Daniel V. Hanson, Darrell C. Roden, Albert C. Phillips
  • Patent number: 6455622
    Abstract: An anticorrosion formulation for coating wood based panels to inhibit the corrosion of metallic members in contact with the panel is disclosed. In one embodiment, the formulation includes water, a binding agent, boric acid, and a group II metal hydroxide selected from beryllium hydroxide, magnesium hydroxide, calcium hydroxide, strontium hydroxide, and barium hydroxide. A wood-based panel coated with the anticorrosion formulation and a method for forming the coated panel are provided.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: September 24, 2002
    Assignee: Weyerhaeuser
    Inventors: Jack G. Winterowd, Jerry D. Izan, Charles E. Lewis, Roger M. Shantz
  • Patent number: 5993534
    Abstract: Wood-based products, to which an overlay material is attached, are pretreated with an aqueous suspension of alkaline, inorganic, multivalent compound such as magnesium hydroxide and a binding agent and then allowed to dry fixing the antistaining compound on the surface of the wood member. Selected additives can be added to the aqueous suspension to enhance application and surface properties. Thereafter the treated members are installed, a typical application being as wood-based underlayment or structural subflooring in flooring construction. When a vinyl floor covering material is attached to the pretreated panel, the treatment functions as a stain blocker preventing unsightly staining of the vinyl floor covering over time.
    Type: Grant
    Filed: October 9, 1997
    Date of Patent: November 30, 1999
    Assignee: Weyerhaeuser Company
    Inventors: Jack G. Winterowd, Dan V. Hanson, Jerry D. Izan, Charles E. Lewis, Stephen L. Siebert, Kerry P. Murphy, David R. Pflum, Barbara A. Wade
  • Patent number: 5129857
    Abstract: When birds are placed upright on the interior surface of an open-ended, non-vertical rotating drum, the birds turn, regardless of their initial orientation, so as to face "uphill" in the drum. The birds leaving the drum are all found to have the same orientation, and thus can be more easily hung on shackles.An apparatus for performing the method comprises a frame, bearings connected to the frame, an open-ended drum supported for rotation about its longitudinal axis by the bearings, means for rotating the drum about its axis, means for depositing a series of birds on the interior surface of the drum, at a first end of the drum as it rotates, and means for receiving birds exiting from a second end of the drum. The drum preferably declines from the first end toward the second at a depression angle of about 15.degree..
    Type: Grant
    Filed: October 29, 1991
    Date of Patent: July 14, 1992
    Inventors: Marlin E. Keiter, Charles E. Lewis
  • Patent number: 5114012
    Abstract: A method and apparatus are provided for producing a foam wrapped package for protecting a roll of pressure-sensitive carbonless copy paper. Interleaved foam and film are wrapped under tension around the outer periphery of the roll of carbonless paper by selectively rotating the roll and separately feeding packaging foam and stretch film toward the rotating roll.
    Type: Grant
    Filed: October 22, 1990
    Date of Patent: May 19, 1992
    Assignee: WTA Inc.
    Inventors: Roger J. Mushinski, Charles E. Lewis, Lawrence J. Casey
  • Patent number: 5007538
    Abstract: A method and apparatus are provided for producing a foam wrapped package for protecting a roll of pressure-sensitive carbonless copy paper. Interleaved foam and film are wrapped under tension around the outer periphery of the roll of carbonless paper by selectively rotating the roll and separately feeding packaging foam and stretch film toward the rotating roll.
    Type: Grant
    Filed: June 20, 1989
    Date of Patent: April 16, 1991
    Assignee: Appleton Papers Inc.
    Inventors: Roger J. Mushinski, Charles E. Lewis, Lawrence J. Casey
  • Patent number: 4936459
    Abstract: A method and apparatus are provided for producing a foam wrapped package for protecting a roll of pressure-sensitive carbonless copy paper. Interleaved foam and film are wrapped under tension around the outer periphery of the roll of carbonless paper by selectively rotating the roll and separately feeding packaging foam and stretch film toward the rotating roll.
    Type: Grant
    Filed: June 20, 1989
    Date of Patent: June 26, 1990
    Assignee: Appleton Papers Inc.
    Inventors: Roger J. Mushinski, Charles E. Lewis, Lawrence J. Casey
  • Patent number: 4884385
    Abstract: A method and apparatus are provided for producing a foam wrapped package for protecting a roll of pressure-sensitive carbonless copy paper. Interleaved foam and film are wrapped under tension around the outer periphery of the roll of carbonless paper by selectively rotating the roll and separately feeding packaging foam and stretch film toward the rotating roll.
    Type: Grant
    Filed: March 4, 1987
    Date of Patent: December 5, 1989
    Assignee: Appleton Papers Inc.
    Inventors: Roger J. Mushinski, Charles E. Lewis, Lawrence J. Casey
  • Patent number: D685623
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: July 9, 2013
    Inventor: Charles E. Lewis