Patents by Inventor Lowell A. Cordingley

Lowell A. Cordingley 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: 5045009
    Abstract: An apparatus and process for use in the manufacture of a tension-mask color cathode ray tube provides for mechanically severing a waste portion from the useful portion of an in-process foil mask secured to mask-support means extending from a faceplate. The apparatus comprises means for support mask-servering means adjacent ot the mask outside the mask support means, and means for translating the mask-severing means into engagement with the mask to sever the mask from the mask support means adjacent all points along the mask-support means.
    Type: Grant
    Filed: May 4, 1990
    Date of Patent: September 3, 1991
    Assignee: Zenith Electronics Corporation
    Inventors: Lowell A. Cordingley, Lawrence W. Dougherty, Allan D. Kautz, Armando V. Marino
  • Patent number: 4333033
    Abstract: An improvement in an anode contact spring for use in a color cathode ray tube is disclosed. The improvement comprises positive locking means for locking an attachment end of the contact spring to a supportive member for suspending the shadow mask adjacent to the panel. The positive locking means comprises bolt means extending from the supportive member and which is located in a preselected lateral position on the member. Clasping means on the attachment end provide for clasping the supportive member. One leg of the clasping means is a hasp for engaging the bolt. An anti-twistoff fold is provided in the contact spring adjacent to the attachment end. Upon engagement by manual pressure of the clasping means with a supportive member, the clasping means expands to provide engagement of the hasp with the bolt, then contracts to provide push-click positive locking of the contact spring to the supportive member.
    Type: Grant
    Filed: March 4, 1980
    Date of Patent: June 1, 1982
    Assignee: Zenith Radio Corporation
    Inventors: Lowell A. Cordingley, Lester C. Gutschick