Patents by Inventor James C. Dougherty

James C. Dougherty 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).

  • Methods of straightening backplane-supported pins
    Patent number: 4340094
    Abstract: A plurality of pins (21) supported by a backplane (22) are initially processed through a straightening operation within a pin straightening apparatus (23) while using a preselected straightening amplitude. The centroids of a statistical sample of the pins (21) are then measured to obtain a measure of pin deviation from nominal. The measured data is then processed by a computer (48) to determine statistical values for mean deviation from nominal and standard deviation. Using the statistical values, a determination is made as to whether another straightening operation is required. If another operation is required, a modified straightening amplitude is determined by using the statistical values and is established within the pin straightening apparatus (23). The pins are then processed through the second straightening operation using the modified straightening amplitude.
    Type: Grant
    Filed: February 26, 1980
    Date of Patent: July 20, 1982
    Assignee: Western Electric Co., Inc.
    Inventors: William M. Chisholm, James C. Dougherty
  • Method of straightening backplane-supported pins
    Patent number: 4340093
    Abstract: A plurality of pins (21) supported by a backplane (22) are initially processed through a straightening operation within a pin straightening apparatus (23) while using a preselected straightening amplitude. The centroids of a statistical sample of the pins (21) are then measured to obtain a measure of pin deviation from nominal. The measured data is then processed by a computer (48) to determine statistical values for mean deviation from nominal and standard deviation. Using the statistical values, a determination is made as to whether another straightening operation is required. If another operation is required, a modified straightening amplitude is determined by using the statistical values and is established within the pin straightening apparatus (23). The pins are then processed through the second straightening operation using the modified straightening amplitude.
    Type: Grant
    Filed: February 26, 1980
    Date of Patent: July 20, 1982
    Assignee: Western Electric Co., Inc.
    Inventors: William M. Chisholm, George S. Davis, James C. Dougherty