Patents by Inventor James C. Krahn

James C. Krahn 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).

  • Sliding door locking device
    Patent number: 5120094
    Abstract: Locking apparatus for securing in a closed disposition a sliding door panel defined, in part, by a jamb-engaging stile which, when the panel is in a closed disposition, is received within a channel defined by frame members defining the jamb. The apparatus includes one or more locking bosses which are received within the channel defined by the frame members. The boss, or bosses, are recessed so that, when the panel is in an open disposition, they do not protrude out of the channel beyond the frame members which define the jamb. Further, the apparatus includes means carried by the jamb-engaging stile for capturing one or more of the locking bosses when the panel is in a closed disposition. Such capture apparatus precludes opening lateral movement of the door panel from its closed disposition.
    Type: Grant
    Filed: January 17, 1991
    Date of Patent: June 9, 1992
    Assignee: Marvin Lumber and Cedar Co.
    Inventors: Charles G. Eaton, James C. Krahn
  • Sliding door pull handle
    Patent number: D330839
    Type: Grant
    Filed: January 17, 1991
    Date of Patent: November 10, 1992
    Assignee: Marvin Lumber and Cedar Co.
    Inventors: Paul B. Barrington, Stephen L. Frish, James C. Krahn