Patents by Inventor Theo Hesselmann

Theo Hesselmann 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: 6640710
    Abstract: An ink bar is provided with a control device for bringing back printing ink into the ink duct (20) of a printing machine when required. The aim of the invention is to arrange all the essential function pieces in a space-saving manner, whereby said pieces are used for adjusting the ink level. The ink bar (1) is made from a hollow rod prifile having an undercut groove (4) on the lateral outer wall. Said groove serves for receiving cables (5). Discharge valves (8) and the supply device of an ink valve are arranged in the inner chamber of the rod profile. The ink valve is coupled to a sensor (9) and said valves are connected by means of the cable (5).
    Type: Grant
    Filed: April 9, 2002
    Date of Patent: November 4, 2003
    Assignee: Planatol Klebetechnik GmbH
    Inventors: Theo Hesselmann, Harald Kretzinger
  • Patent number: 5876784
    Abstract: The present invention pertains to a treating device 1, especially a rotating transverse gluing mechanism for high-speed, register mark-related paper or film webs 2. The movements of the transverse gluing mechanism 1 are synchronized with the web 2, and the transverse gluing mechanism has an independent synchronous drive 6 with a drive motor 7 and a regulating unit for this purpose. The electronic regulating unit compensates variations in the synchronism of the running web 2.
    Type: Grant
    Filed: July 30, 1997
    Date of Patent: March 2, 1999
    Assignee: Planatol Klebetechnik GmbH
    Inventor: Theo Hesselmann
  • Patent number: 4502912
    Abstract: An apparatus for forming a succession of equispaced and transversely extending glue strips on a longitudinally extending web has an applicator drum rotatable about a drum axis and having a cylindrical outer surface with a circumference equal to a whole-number multiple of the desired distance between succeeding strips. The drum is formed with at least one axially extending manifold passage and an axially extending row of bores opening radially outward at the drum surface and inward into the passage. Guide and transport rollers displace the web longitudinally at very high speed past the applicator drum with the web looped over same and engaging same over an angularly extending contact region. A drive rotates the drum about the axis at a peripheral speed substantially equal to the very high displacement speed of the web.
    Type: Grant
    Filed: June 10, 1983
    Date of Patent: March 5, 1985
    Assignee: Planatolwerk Willy Hesselmann, Chemische Und Maschinenfabrik F/u/ r Klebetechnik GmbH & Co. KG
    Inventors: Erich Steiner, Theo Hesselmann