Patents by Inventor Thomas Kenneth Allen

Thomas Kenneth Allen 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).

  • Glass tube cutting
    Patent number: 4044936
    Abstract: Apparatus for cutting glass tubing transverse to its length comprises a laser, an optical system for directing the laser along a full circumferential line around the tubing without rotating the tubing and means for forming a point of weakness on the circumferential line so that the stress generated by the laser beam causes the tube to be cut. The optical system includes a mirror located within a tubular casing arranged to be inserted within the glass tubing to be cut.
    Type: Grant
    Filed: May 13, 1975
    Date of Patent: August 30, 1977
    Assignee: James A. Jobling & Company Limited
    Inventors: Derek Obersby, Thomas Kenneth Allen