Patents by Inventor Bradley J. Stringer

Bradley J. Stringer 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: 6049386
    Abstract: An in-motion measuring system for determining the length and width of linearly-moving cuboidal objects through the use of object speed, the times during which six light beams oriented across the path of the object are obstructed by the object, and the angles of the light beams with respect to the direction of object movement. The height of an object may also be determined through use of a vertically-extending light curtain with horizontally-oriented light beams, or via an ultrasonic sensor.
    Type: Grant
    Filed: October 21, 1998
    Date of Patent: April 11, 2000
    Assignee: Quantronix, Inc.
    Inventors: Bradley J. Stringer, Lee W. Badger
  • Patent number: 5850370
    Abstract: A method and apparatus for measuring the dimensions and determining the three-dimensional, spatial volume of objects, particularly small objects. Reflected laser light sensors are employed. A stationary measurement embodiment of the apparatus may be employed to measure regular cuboidal objects. A dynamic or in-motion embodiment may be employed to measure the dimensions of cuboidal objects or a three-dimensional outline of objects of irregular configuration.
    Type: Grant
    Filed: February 11, 1997
    Date of Patent: December 15, 1998
    Assignee: Quantronix, Inc.
    Inventors: Bradley J. Stringer, Michael K. Elwood
  • Patent number: 5831737
    Abstract: An in-motion measuring system for determining the length and width of linearly-moving cuboidal objects through the use of object speed, the times during which four light beams oriented across the path of the object are obstructed by the object, and the angles of the light beams with respect to the direction of object movement. The height of an object may also be determined through use of a vertically-extending light curtain with horizontally-oriented light beams, or via an ultrasonic sensor.
    Type: Grant
    Filed: June 2, 1997
    Date of Patent: November 3, 1998
    Assignee: Quantronix, Inc.
    Inventors: Bradley J. Stringer, Lee W. Badger, Michael K. Elwood
  • Patent number: 5636028
    Abstract: An in-motion measuring system for determining the length and width of linearly-moving cuboidal objects though the use of object speed, the times during which four light beams oriented across the path of the object are obstructed by the object, and the angles of the light beams with respect to the direction of object movement. The height of an object may also be determined through use of a vertically-extending light curtain with horizontally-oriented light beams, or via an ultrasonic sensor.
    Type: Grant
    Filed: June 29, 1995
    Date of Patent: June 3, 1997
    Assignee: Quantronix, Inc.
    Inventors: Bradley J. Stringer, Lee W. Badger, Michael K. Elwood
  • Patent number: 5606534
    Abstract: A method and apparatus for measuring the dimensions and determining the three-dimensional, spatial volume of objects, particularly small objects. Reflected laser light sensors are employed. A stationary measurement embodiment of the apparatus may be employed to measure regular cuboidal objects. A dynamic or in-motion embodiment may be employed to measure the dimensions of cuboidal objects or a three-dimensional outline of objects of irregular configuration.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: February 25, 1997
    Assignee: Quantronix, Inc.
    Inventors: Bradley J. Stringer, Michael K. Elwood
  • Patent number: 5422861
    Abstract: A method and apparatus for measuring the dimensions and determining the three-dimensional, spatial volume of objects. An object detection system is employed to detect proper placement of an object to be measured, and waveguides are employed as standoffs and received wave isolators for reflected-wave sensors. An autocalibration method for ultrasonic sensors is also disclosed.
    Type: Grant
    Filed: June 14, 1993
    Date of Patent: June 6, 1995
    Assignee: Quantronix, Inc.
    Inventors: Bradley J. Stringer, Robert L. Kennington
  • Patent number: 5220536
    Abstract: A method and apparatus for measuring the dimensions and determining the three-dimensional, spatial volume of objects. In the preferred embodiment, a light curtain and ultrasonic sensing are employed in combination with the travel time of linearly moving objects to ascertain object dimensions. The preferred embodiment is particularly suitable for measurement of moving, rectangular objects of random orientation with respect to the direction of travel.
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: June 15, 1993
    Assignee: Quantronix, Inc.
    Inventors: Bradley J. Stringer, Brian H. Smith
  • Patent number: 5105392
    Abstract: The present invention relates to methods and apparatus for measuring the linear dimensions and determining the three-dimensional, spatial volume of objects. In the preferred embodiments, ultrasonic sensing is employed, alone or in combination with other measuring methods such as light curtains and the timing of moving objects, to ascertain linear dimensions. The preferred embodiments are particularly adapted to the measurement of large and irregularly configured objects, such as palletized loads, and to the measurement of moving, rectangular objects of random orientation with respect to the direction of travel.
    Type: Grant
    Filed: March 18, 1991
    Date of Patent: April 14, 1992
    Assignee: Quantronix, Inc.
    Inventors: Bradley J. Stringer, Brian H. Smith, Robert L. Kennington
  • Patent number: 5042015
    Abstract: The present invention comprises a method and apparatus for measuring the linear dimensions and determining the three-dimensional spatial volume of an object. In the preferred embodiment, all three linear dimensions are ascertained using the travel time of reflected ultrasonic waves. Measurements may be taken while the object is in motion, and the object may also be weighed.
    Type: Grant
    Filed: September 1, 1989
    Date of Patent: August 20, 1991
    Assignee: Quantronix, Inc.
    Inventor: Bradley J. Stringer