Patents by Inventor Mindaugas J. Vaitkyavichjus

Mindaugas J. Vaitkyavichjus 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).

  • Method of manufacturing filters by laser treatment and device therefor
    Patent number: 5059256
    Abstract: A method of manufacturing filters by laser treatment, wherein working is done by a laser beam and a jet of working gas. An absorbing coating is applied to a surface to be worked. The laser beam is focused to form a focal spot within a work piece at a depth h.sub.1 from its surface with0.025.ltoreq.h.sub.1 /h<0.22where h is the thickness of the work piece.Abrasive particles are introduced in a pulsed periodic manner into said jet of working gas at the moment the variation amplitude of the volume of molten metal in a cutting cavity reaches a maximum value. A device for manufacturing filters has a laser, a nozzle with an optical laser focusing system, and a mechanism for controlling the yield of an absorbing coating.
    Type: Grant
    Filed: May 8, 1990
    Date of Patent: October 22, 1991
    Inventors: Rimantas-Mikolas V. Kanapenas, Mindaugas J. Vaitkyavichjus, Jurgis K. Vischakas, Kyastutis J. Dumchjus, Eduardas J. Bendoraitis