Patents by Inventor Peter Erni

Peter Erni 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: 5173638
    Abstract: The high-power radiator includes a discharge space (12) bounded by a metal electrode (8), cooled on one side, and a dielectric (9) and filled with a noble gas or gas mixture, both the dielectric (9) and also the other electrode situated on the surface of the dielectric facing away from the discharge space (12) being transparent for the radiation generated by quiet electric discharges. In this manner, a large-area UV radiator with high efficiency is created which can be operated at high electrical power densities of up to 50 kW/m.sup.2 of active electrode surface.
    Type: Grant
    Filed: June 27, 1991
    Date of Patent: December 22, 1992
    Assignee: BBC Brown, Boveri Ag
    Inventors: Baldur Eliasson, Peter Erni, Michael Hirth, Ulrich Kogelschatz
  • Patent number: 4837484
    Abstract: The high-power radiator comprises a discharge space (12) bounded by a metal electrode (8), cooled on one side, and a dielectric (9). The discharge space (12) is filled with a noble gas or gas mixture. Both the dielectric (9) and the other electrode situated on the surface of the dielectric (9) facing away from the discharge space (12) are transparent for the radiation generated by quiet electric discharges. In this manner, a large-area UV radiator with high efficiency is created which can be operated at high electrical power densities of up to 50 kW/m.sup.2 of active electrode surface.
    Type: Grant
    Filed: July 22, 1987
    Date of Patent: June 6, 1989
    Assignee: BBC Brown, Boveri AG
    Inventors: Baldur Eliasson, Peter Erni, Michael Hirth, Ulrich Kogelschatz
  • Patent number: 4790980
    Abstract: A device and process for the generation of ozone using an ozone generator having two electrodes connected across the secondary winding of a high voltage transformer, the primary winding of which is connected to a converter which supplies thereto a square wave current of variable amplitude and variable frequency. A compensation coil is connected across either the primary winding or the secondary winding of the transformer. The ozone generator includes a solid dielectric and a gas path between its two electrodes. The inductance of the compensating choke and the operating frequency of the converter are selected such that the resonance frequency of the resonant circuit formed by the ozone generator and the compensation choke lies below the operating frequency of the converter current supply in any operating condition.
    Type: Grant
    Filed: June 12, 1986
    Date of Patent: December 13, 1988
    Assignee: BBC Brown, Boveri & Company, Limited
    Inventors: Peter Erni, Gerard Kirsch
  • Patent number: 4461744
    Abstract: An ozone-generating element is disclosed which has a tube ozonizer (1), consisting essentially of an outer metal tube (3) forming one electrode, and of a glass tube (4) which is located coaxially therein and is spaced from it and the inner surface of which is provided with an electrically conductive layer (5) serving as the other electrode. Ozone is formed by pulse discharges with a passive, plate-like spark gap (12) with a defined response voltage serving as a switching element. The tube ozonizer (1) is fed by a low-frequency current source (7) via a high-voltage transformer (9), to the secondary winding (10) of which a storage capacitor (11) is connected. A series of embodiments is proposed, and in these part or all the constructional elements of the critical pulse circuit form a constructional unit with, or integrated into, the tube ozonizer (1). In this way, it is possible to produce pulse circuits of extremely low inductance which lead to up to a doubling of the total efficiency of ozone generation.
    Type: Grant
    Filed: December 17, 1981
    Date of Patent: July 24, 1984
    Assignee: BBC Brown, Boveri & Company, Limited
    Inventors: Peter Erni, Ulrich Kogelschatz, Sigfrid Strassler, Hans-Jurg Wiesmann