Patents by Inventor Keith E. Zumwalt, Sr.

Keith E. Zumwalt, Sr. 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: 4075086
    Abstract: Apparatus for the inspection of flask-type glass containers. Glass containers of the type having elongated necks and somewhat flattened main body portions, sometimes referred to as flask-type containers, may be inspected by conventional inspection devices if a particular handling system is used. The neck portion of the glass container is contained in a pocket formed in a neck holder carried by an upper, indexable starwheel. About 180.degree. of the neck circumference is in contact with the neck holder pocket. An upper guide rail contacts that portion of the neck which extends beyond the neck holder. A lower, indexable starwheel has a large pocket cut therein to allow the flattened main body portion to rotate freely at an inspection station. The flask-type container is fully stabilized for rotation by the contact of the neck portion with the neck holder pocket and the upper guide rail.
    Type: Grant
    Filed: August 5, 1976
    Date of Patent: February 21, 1978
    Assignee: Owens-Illinois, Inc.
    Inventors: Samuel W. Marsh, III, Keith E. Zumwalt, Sr.