Patents by Inventor Erich Dollansky

Erich Dollansky 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).

  • Apparatus and method for optically detecting and electronically analyzing the location of a projectile in a target plane
    Patent number: 5637866
    Abstract: The invention comprises a method, apparatus and equipment for detecting the hit location of a projectile passing through a target plane. A light source generates at least two zones of light which subtend between them a specified angle. The light zones sweep the target plane, illuminating a projectile crossing the target plane and casting a shadow of the projectile onto a screen, preferably a difuse, ground-glass screen.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: June 10, 1997
    Inventors: Karl S. Riener, Erich Dollansky
  • Characteristic absorption
    Patent number: 5585636
    Abstract: Apparatus and methods for monitoring characteristic absorption of a substance in a mixture include applying radiation pulses with a wavelength characteristic of the substance to be measured and a wavelength uncharacteristic of the substance to a measuring path and to a reference path without the substance mixture. The difference of signals generated between the measuring path and the reference path are conditioned to provide a measurement value.
    Type: Grant
    Filed: December 9, 1994
    Date of Patent: December 17, 1996
    Assignee: Karl Stefan Reiner
    Inventor: Erich Dollansky