Patents by Inventor Gerald Hammer

Gerald Hammer 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: 8154202
    Abstract: Disclosed is a starter member to which a mercury-absorbing layer is applied and which can be used in low-pressure mercury discharge lamps. A starter member for a low-pressure amalgam discharge lamp comprises a mercury-absorbing layer on a base. A coating layer which is provided on the mercury-absorbing layer has a getter effect and prevents the material of the mercury-absorbing layer from coming off.
    Type: Grant
    Filed: October 22, 2007
    Date of Patent: April 10, 2012
    Assignee: OSRAM AG
    Inventors: Kirsten Fuchs, Gerald Hämmer, Paul Lange, Viktor Malik, Thomas Noll, Klaus Pankratz
  • Patent number: 7952286
    Abstract: The invention relates to a mercury source for a low-pressure discharge lamp comprising an amalgam body which is arranged on a front surface of a wire or enclosed in a perforated structure. The amalgam body or the perforated structure is provided with a protective coating with a getter effect. The invention enables a simple production process to be implemented with low costs in terms of materials.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: May 31, 2011
    Assignee: OSRAM Gesellschaft mit beschränkter Haftung
    Inventors: Kirsten Fuchs, Gerald Hämmer, Thomas Noll, Klaus Pankratz
  • Publication number: 20090322223
    Abstract: Disclosed is a starter member to which a mercury-absorbing layer is applied and which can be used in low-pressure mercury discharge lamps. A starter member for a low-pressure amalgam discharge lamp comprises a mercury-absorbing layer on a base. A coating layer which is provided on the mercury-absorbing layer has a getter effect and prevents the material of the mercury-absorbing layer from coming off.
    Type: Application
    Filed: October 22, 2007
    Publication date: December 31, 2009
    Inventors: Kirsten Fuchs, Gerald Hämmer, Paul Lange, Viktor Malik, Thomas Noll, Klaus Pankratz
  • Publication number: 20090302761
    Abstract: The invention relates to a discharge lamp comprising a discharge vessel (2) and an electrode frame (3) which is provided with a lamp coil (33) and at least some sections of which extend into the discharge vessel (2). Electrode holders (31, 32) are connected to a glass bead (34), at least some areas of which are sealed into an end region (21) of the discharge vessel (2).
    Type: Application
    Filed: November 6, 2007
    Publication date: December 10, 2009
    Applicant: OSRAM GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Gerald Hammer, Alfred Langer, Thomas Noll, Klaus Pankratz
  • Publication number: 20090278456
    Abstract: The invention relates to a mercury source for a low-pressure discharge lamp comprising an amalgam body which is arranged on a front surface of a wire or enclosed in a perforated structure. The amalgam body or the perforated structure is provided with a protective coating with a getter effect. The invention enables a simple production process to be implemented with low costs in terms of materials.
    Type: Application
    Filed: October 19, 2007
    Publication date: November 12, 2009
    Applicant: OSRAM Gesellschaft
    Inventors: Kirsten Fuchs, Gerald Hammer, Noll Thomas, Klaus Pankratz
  • Patent number: 6838813
    Abstract: The invention relates to a low-pressure discharge lamp, having a tubular discharge vessel made from glass, the free ends of which are closed off in a gas tight manner, two electrode systems (3) each having a filament (7), two supply conductors (5, 6) and a bead (8) of glass, the ends of the supply conductors (5, 6) being fused into the ends of the discharge vessel which have been closed off in a gas tight manner and, in order to be held in a region between the filament (7) and the discharge vessel fused seal (2), into the bead (8), and a device for switching off the lamp at the end of its service life, comprising a paste (9) which contains a metal hydride and is fitted to the bead (8). According to the invention, the bead (8) consists of a glass material which has a resistivity of greater 108 ?cm at 350° C.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: January 4, 2005
    Assignee: Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH
    Inventors: Bernhard Blohm, Kirsten Fuchs, Achim Hilscher, Peter Husslein, Gerald Hämmer, Andreas Maciejewski, Thomas Noll, Klaus Pankratz, Klaus Weingärtner
  • Publication number: 20040012333
    Abstract: The invention relates to a low-pressure discharge lamp, having a tubular discharge vessel made from glass, the free ends of which are closed off in a gas tight manner, two electrode systems (3) each having a filament (7), two supply conductors (5, 6) and a bead (8) of glass, the ends of the supply conductors (5, 6) being fused into the ends of the discharge vessel which have been closed off in a gas tight manner and, in order to be held in a region between the filament (7) and the discharge vessel fused seal (2), into the bead (8), and a device for switching off the lamp at the end of its service life, comprising a paste (9) which contains a metal hydride and is fitted to the bead (8). According to the invention, the bead (8) consists of a glass material which has a resistivity of greater 108 &OHgr;cm at 350° C.
    Type: Application
    Filed: April 25, 2003
    Publication date: January 22, 2004
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCH GLUHLAMPEN MBH
    Inventors: Bernhard Blohm, Kirsten Fuchs, Achim Hilscher, Peter Husslein, Gerald Hammer, Andreas Maciejewski, Thomas Noll, Klaus Pankratz, Klaus Weingartner