Patents by Inventor Ronald L. Underwood

Ronald L. Underwood 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: 8576022
    Abstract: Tuning a programmable power line filter, the power line filter including a live line, a neutral line, and a ground line connected to input terminals of the filter on an input side of the filter, the live line and the neutral line connected through inductors in the filter to output terminals on an output side of the filter, X-capacitors selectably connected through tuning switches between the live line and the neutral line, Y-capacitors selectably connected through tuning switches between the live line and ground and/or between the neutral line and ground, and a tuning control circuit connected to the tuning switches and selectably connected through one or more programming switches to the load, including measuring by the tuning control circuit the input impedance of the load and programming by the tuning control circuit the tuning switches in dependence upon the input impedance of the load.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: November 5, 2013
    Assignee: International Business Machines Corporation
    Inventors: Eric N. Chikando, Brad E. Dillon, Tuan D. Ngo, William J. Roberts, Eric R. Schumann, Ronald L. Underwood
  • Publication number: 20110128087
    Abstract: Tuning a programmable power line filter, the power line filter including a live line, a neutral line, and a ground line connected to input terminals of the filter on an input side of the filter, the live line and the neutral line connected through inductors in the filter to output terminals on an output side of the filter, X-capacitors selectably connected through tuning switches between the live line and the neutral line, Y-capacitors selectably connected through tuning switches between the live line and ground and/or between the neutral line and ground, and a tuning control circuit connected to the tuning switches and selectably connected through one or more programming switches to the load, including measuring by the tuning control circuit the input impedance of the load and programming by the tuning control circuit the tuning switches in dependence upon the input impedance of the load.
    Type: Application
    Filed: December 2, 2009
    Publication date: June 2, 2011
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Eric N. Chikando, Brad E. Dillon, Tuan D. Ngo, William J. Roberts, Eric R. Schumann, Ronald L. Underwood
  • Publication number: 20040049826
    Abstract: An apparatus for shielding a human eye of a patient while allowing the human eye contact with the air. A lens of the apparatus is fashioned to one or both of the eyes and is optically clear and optically correct in that it does not distort the patient's vision. The optically correct aspect of the lens is achieved by either polishing a mold for the lens or alternatively, by die-cutting the lens from an optically correct material. The lens may be held in place by an adjustable strap. A plurality of vents to allow the eye contact with the air are a plurality of apertures in the lens or a plurality of spaces or holes in a cushioning structure, where the cushioning structure is coupled to the perimeter of the surface of the lens facing the eye.
    Type: Application
    Filed: July 18, 2003
    Publication date: March 18, 2004
    Inventors: Henry Welling Lane, Ronald L. Underwood
  • Patent number: 6609255
    Abstract: An apparatus for shielding a human eye of a patient while allowing the human eye contact with the air. A lens of the apparatus is fashioned to one or both of the eyes and is optically clear and optically correct in that it does not distort the patient's vision. The optically correct aspect of the lens is achieved by either polishing a mold for the lens or alternatively, by die-cutting the lens from an optically correct material. The lens may be held in place by an adjustable strap. A plurality of vents to allow the eye contact with the air are a plurality of apertures in the lens or a plurality of spaces or holes in a cushioning structure, where the cushioning structure is coupled to the perimeter of the surface of the lens facing the eye.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: August 26, 2003
    Assignee: Dioptics Medical Products, Inc.
    Inventors: Henry Welling Lane, Ronald L. Underwood
  • Publication number: 20020166160
    Abstract: An apparatus for shielding a human eye of a patient while allowing the human eye contact with the air. A lens of the apparatus is fashioned to one or both of the eyes and is optically clear and optically correct in that it does not distort the patient's vision. The optically correct aspect of the lens is achieved by either polishing a mold for the lens or alternatively, by die-cutting the lens from an optically correct material. The lens may be held in place by an adjustable strap. A plurality of vents to allow the eye contact with the air are a plurality of apertures in the lens or a plurality of spaces or holes in a cushioning structure, where the cushioning structure is coupled to the perimeter of the surface of the lens facing the eye.
    Type: Application
    Filed: May 9, 2001
    Publication date: November 14, 2002
    Inventors: Henry Welling Lane, Ronald L. Underwood
  • Publication number: 20020152544
    Abstract: An apparatus for shielding a human eye of a patient while allowing the human eye contact with the air. A lens of the apparatus is fashioned to one or both of the eyes and is optically clear and optically correct in that it does not distort the patient's vision. The optically correct aspect of the lens is achieved by either polishing a mold for the lens or alternatively, by die-cutting the lens from an optically correct material. The lens may be held in place by an adjustable strap. A plurality of vents to allow the eye contact with the air are a plurality of apertures in the lens or a plurality of spaces or holes in a cushioning structure, where the cushioning structure is coupled to the perimeter of the surface of the lens facing the eye.
    Type: Application
    Filed: February 26, 2002
    Publication date: October 24, 2002
    Inventors: Henry Welling Lane, Ronald L. Underwood
  • Patent number: 5674113
    Abstract: Clip-on sunglasses and an apparatus for custom cutting the clip-on sunglasses. The system includes a holder which assists in positioning the sunglasses on the system. The sunglasses include a pair of lenses interconnected by a bridge specifically dimensioned to be received by the holder. The bridge and holder are intended to be used in combination to produce custom clip-on sunglasses which can form in shape and size to the frame of the eyeglasses.
    Type: Grant
    Filed: April 12, 1996
    Date of Patent: October 7, 1997
    Inventor: Ronald L. Underwood
  • Patent number: 5546140
    Abstract: Clip-on sunglasses and an apparatus for custom cutting the clip-on sunglasses. The system includes a holder which assists in positioning the sunglasses on the system. The sunglasses include a pair of lenses interconnected by a bridge specifically dimensioned to be received by the holder. The bridge and holder are intended to be used in combination to produce custom clip-on sunglasses which can form in shape and size to the frame of the eyeglasses.
    Type: Grant
    Filed: June 9, 1994
    Date of Patent: August 13, 1996
    Inventor: Ronald L. Underwood
  • Patent number: 5431595
    Abstract: An apparatus for custom cutting clip-on sunglasses includes a stop which assists in positioning the eyeglasses or sunglasses on the holder. A centerer is associated with said apparatus for centering the eyeglasses or sunglasses.
    Type: Grant
    Filed: September 14, 1993
    Date of Patent: July 11, 1995
    Inventor: Ronald L. Underwood
  • Patent number: 5423712
    Abstract: An apparatus for custom cutting clip-on sunglasses includes a first holder for securely holding eyeglasses and a second holder for securely holding clip-on sunglasses. A first locator assists in positioning the eyeglasses on the first holder. A second locator is used for positioning the sunglasses on the second holder. A support carries a guide for tracing the perimeter of the eyeglasses and a cutter for cutting the clip-on sunglasses. To custom cut the clip-on sunglasses, the eyeglasses are positioned on the holder and each lens of the eyeglasses is marked at a point aligned with a respective locator on the holder. The clip-on sunglasses are then clipped onto the eyeglasses, and the points on the sunglasses positioned over the marks on the eyeglasses are marked. The clip-on sunglasses are then positioned on a second holder. The guide is then moved around the perimeter of the eyeglasses. The cutter moves with the guide such that the cutter cuts the sunglasses into the shape of the eyeglasses.
    Type: Grant
    Filed: August 11, 1993
    Date of Patent: June 13, 1995
    Inventors: Ronald L. Underwood, Alan W. Brown
  • Patent number: D457908
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: May 28, 2002
    Assignee: Dioptics Medical Products, Inc.
    Inventors: Henry Welling Lane, Ronald L. Underwood
  • Patent number: D462374
    Type: Grant
    Filed: September 26, 2000
    Date of Patent: September 3, 2002
    Assignee: Dioptics Medical Products, Inc.
    Inventors: Henry Welling Lane, Ronald L. Underwood
  • Patent number: D467959
    Type: Grant
    Filed: January 8, 2002
    Date of Patent: December 31, 2002
    Assignee: Dioptics Medical Products, Inc.
    Inventors: Henry Welling Lane, Ronald L. Underwood