1
Erich Berger, Hans Langer: Process and apparatus for applying authenticating coding to value-carrying paper. Oesterreichische Nationalbank, Karl F Ross, Herbert Dubno, April 26, 1988: US04740269 (122 worldwide citation)

In the process according to our invention authenticating (code) marks are provided on paper, particularly a security or other financial instrument, by contacting laser radiation from a laser light source on the paper to form the authenticating marks. The objects of our invention are attained with an ...


2
Fritz Gartner, Erich Berger: System for testing paper money and the like. Oesterreichische National Bank, Karl F Ross, Herbert Dubno, January 6, 1976: US03930582 (96 worldwide citation)

To test the genuineness and/or condition of dollar bills or other substantially identical papers, one or more thickness gauges are positioned in the path of these papers and determine the deviations, if any, of the thickness of a passing specimen from a predetermined value or from the thickness of a ...


3
Erich Berger, Peter Fajmann: Document with doped optical security attribute, layer composite for making same and test device for testing the document for authenticity. Oesterreichische Nationalbank, Herbert Dubno, December 26, 2000: US06165592 (56 worldwide citation)

A document, for example a bank note, a check, a credit card, an identification document or a ticket, bears an optical safety mark in the form of a light-reflecting and light-diffracting and/or refracting layer, for example a hologram, an interference layer, a (computer-generated) refracting structur ...


4
Wolfgang Binder Kriegelstein, Erich Berger: Method of manufacturing a rotatable magnetic head arrangement. U S Philips Corporation, Thomas A Briody, David R Treacy, Robert S Smith, February 5, 1980: US04186480 (10 worldwide citation)

A method of manufacturing a rotatable magnetic head arrangement in which at least one magnetic head provided on a disc-shaped carrier in a given position with respect to a reference surface provided on the carrier is laser machined to form a gap width of a particular size and location relative to sa ...


5
Erich Berger: Slipping coupling for a recording and/or playback apparatus. U S Philips Corporation, Frank R Trifari, David R Treacy, August 30, 1977: US04044868 (6 worldwide citation)

A slipping clutch which comprises a first sliping clutch section and, coaxial therewith, a second slipping clutch section pivotably journalled to a counter-bearing. An annular bearing part is coaxial with the second slipping clutch section so as to allow said section to pivot freely. This part compr ...


6
Nikolaus Hausler, Erich Berger, Wolfgang Wiese: Machine for making recessed composite filter mouthpieces. Hauni Werke Korber & Co KG, Peter K Kontler, December 9, 1980: US04237778 (4 worldwide citation)

A continuous filter rod which can be severed to yield recessed composite filter mouthpieces is obtained by feeding groups of assorted dissimilar coaxial filter plugs onto the adhesive-coated side of a running web of wrapping material and inserting a phantom plug of selected length between each previ ...


7
Karl Heinz Barbe, Erich Berger: Apparatus for severing a running web of tipping paper or the like. Hauni Werke Korber & Co KG, Peter K Kontler, March 12, 1985: US04503867 (3 worldwide citation)

A running web of tipping paper in a filter tipping machine is attracted to the peripheral surface of a rotary suction conveyor constituting a counterknife for a set of equidistant knives which are radially movably mounted in axially parallel grooves of a rotary knife carrier. Each knife is adjustabl ...