Patents by Inventor William Shelton

William Shelton 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: 6116502
    Abstract: The present invention provides a container having a pair of walls intersecting along a common edge to form a comer, an opening formed in each of the walls and extending across the common edge, whereby a spout is formed by edges of the walls which define the opening. Preferably the container further comprises a selectively removable flap for overlaying the opening, the flap in hinged attachment with one of the pair of walls of the container, proximal the opening, the flap moveable away from the opening to permit access thereto. A blank for forming the container is also provided.
    Type: Grant
    Filed: August 21, 1998
    Date of Patent: September 12, 2000
    Assignee: Sifto Canada Inc.
    Inventors: Gary Richard Noseworthy, Gregory William Shelton, Richard Marshall, Gregory Kimmett, Ronald Arthur Millichamp, Wayne Petrie, Patrick Bruce
  • Patent number: 5568385
    Abstract: A computer-based system for collecting and displaying weather information includes a microprocessor-based computer programmed to receive digital signals encoding weather data collected at each weather station; and to store and retrieve those digital signals in predetermined screen buffers to generate weather data screens displaying alphanumeric and graphic displays of weather data. The system further includes multiple weather stations, each comprised of one or more weather instruments, each capable of sensing a particular weather parameter and converting that parameter into a analog electrical signal, with means for converting the analog signal into a series of digital signals corresponding to the values of the weather parameter over time. The system further including means for communicating the digital signals from the weather stations to the computer and means for displaying the data screens to multiple end users in real time.
    Type: Grant
    Filed: June 1, 1994
    Date of Patent: October 22, 1996
    Inventor: William A. Shelton
  • Patent number: 4531078
    Abstract: A control circuit for timing the duration of a flash of artificial illumination from an electronic flash maintains a substantially uniform amount of artificial illumination regardless of the ambient scene light intensity by detecting the ambient scene light intensity up to the instant that the flash is fired and thereafter subtracting the ambient scene light intensity so detected immediately prior to the flash being fired from the ambient and artificial scene light intensity detected during the flash of artificial illumination.
    Type: Grant
    Filed: October 27, 1983
    Date of Patent: July 23, 1985
    Assignee: Polaroid Corporation
    Inventors: Joseph M. Canter, William A. Shelton
  • Patent number: 4334744
    Abstract: Photographic apparatus, e.g., a camera, having a synchronized flash. The camera includes a ranging system, an objective lens assembly movable between first and second positions for focusing an object at the camera's focal plane, a source of artificial illumination for illuminating the object, and a flash fire control in the form of an electronic flash initiation timer. The flash fire control receives an input from the ranging system which is representative of the camera-to-subject distance, and an input from the objective lens assembly upon its release for movement toward the second position. The flash fire control correlates these inputs so as to fire the source of artificial illumination while the lens assembly is still moving toward the second position and the object is in focus. In one embodiment, the intensity and/or the duration of the light from the artificial source of illumination is changed as a function of an exposure parameter, e.g., camera-to-subject distance.
    Type: Grant
    Filed: July 28, 1980
    Date of Patent: June 15, 1982
    Assignee: Polaroid Corporation
    Inventor: William A. Shelton
  • Patent number: 4195919
    Abstract: Contact lenses, particularly for aphakic eyes, are characterized by a rear conicoid optical surface that is fitted to the cornea and a front prolate ellipsoidal optical surface of particular power, these surfaces having functionally related configurations.
    Type: Grant
    Filed: October 31, 1977
    Date of Patent: April 1, 1980
    Inventor: William A. Shelton
  • Patent number: 4102701
    Abstract: Oxo-polycarboxylic acids act as set control agents, preferably as set retarders for plasters. Examples of usable acids are 2,2,6,6-tetra(.beta.-carboxyethyl)cyclohexanone, 2,2-di(.beta.-carboxyethyl)-3,5,5-trimethylcyclohexanone or 3-acetyl-3(.beta.-carboxyethyl)-pimelic acid. Also the salts of these acids are usable. The set control agents are added to the plaster in amounts of 5 to 5000 ppm.
    Type: Grant
    Filed: March 17, 1976
    Date of Patent: July 25, 1978
    Assignee: Ciba-Geigy Corporation
    Inventors: Colin Dennis Campbell, Michael Anthony Finan, Kenneth William Shelton
  • Patent number: 4072964
    Abstract: A photographic camera apparatus is provided with an automatic illumination and exposure control system for controlling a pair of scanning type shutter blade elements as well as a flash fire and quench signal directed to a quench strobe operatively associated therewith. The camera apparatus may be operated in either a "fill-in" flash mode of operation or an ordinary flash mode. During the "fill-in" flash mode of operation, the time delay in quenching the strobe is progressively decreased as a function of increasing ambient scene light intensity so that the shutter blade elements admit progressively less reflected strobe light from the subject during the finite time required for the shutter blade elements to close.
    Type: Grant
    Filed: May 13, 1976
    Date of Patent: February 7, 1978
    Assignee: Polaroid Corporation
    Inventors: William R. Pope, William A. Shelton
  • Patent number: 4022625
    Abstract: A polishing composition suitable for polishing semi-conductive materials, e.g. silicon and germanium, comprises an aqueous slurry containing as a polishing agent a finely divided calcium-titanium-zirconium-oxygen product having the empirical formula CaTiZr.sub.3 O.sub.9. Additional materials that may be present include sodium hypochlorite, sodium metasilicate, potassium hydroxide, and glycerine.
    Type: Grant
    Filed: December 24, 1974
    Date of Patent: May 10, 1977
    Assignee: NL Industries, Inc.
    Inventor: William A. Shelton