Patents by Inventor Michael Hulsemann

Michael Hulsemann 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).

  • Lamp which is closed on two sides
    Patent number: 7745999
    Abstract: The elongate bulb (1) of the lamp, which defines a longitudinal axis (A), is closed at opposite ends by sealing parts (6; 32), with in each case one cap being fitted at one end, the cap having an electrical contact element (13; 25) which is connected in an electrically conductive manner to a supply conductor (15; 21) leading to a luminous means, the contact element being accommodated in a tubular extension (11; 22) of the sealing part; the contact element (13; 25) has an attachment part (14; 24) which is directed inward toward the lamp interior and is equipped with at least two barbs (20; 26) which are in contact with the tubular extension (11; 21).
    Type: Grant
    Filed: May 19, 2007
    Date of Patent: June 29, 2010
    Assignee: OSRAM Gesellschaft mit beschraenkter Haftung
    Inventors: Jurgen Graf, Andreas Hohlfeld, Michael Hulsemann, Anton Schogl, Karen Twesten
  • Lamp which is closed on two sides
    Publication number: 20070222386
    Abstract: The elongate bulb (1) of the lamp, which defines a longitudinal axis (A), is closed at opposite ends by sealing parts (6; 32), with in each case one cap being fitted at one end, the cap having an electrical contact element (13; 25) which is connected in an electrically conductive manner to a supply conductor (15; 21) leading to a luminous means, the contact element being accommodated in a tubular extension (11; 22) of the sealing part; the contact element (13; 25) has an attachment part (14; 24) which is directed inward toward the lamp interior and is equipped with at least two barbs (20; 26) which are in contact with the tubular extension (11; 21).
    Type: Application
    Filed: May 19, 2007
    Publication date: September 27, 2007
    Applicant: OSRAM SYLVANIA INC.
    Inventors: Jurgen Graf, Andreas Hohlfeld, Michael Hulsemann, Anton Schlogl, Karen Twesten
  • Lamp which is closed on two sides
    Patent number: 7253562
    Abstract: The elongate bulb (1) of the lamp, which defines a longitudinal axis (A), is closed at opposite ends by sealing parts (6; 32), with in each case one cap being fitted at one end, the cap having an electrical contact element (13; 25) which is connected in an electrically conductive manner to a supply conductor (15; 21) leading to a luminous means, the contact element being accommodated in a tubular extension (11; 22) of the sealing part; the contact element (13; 25) has an attachment part (14; 24) which is directed inward toward the lamp interior and is equipped with at least two barbs (20; 26) which are in contact with the tubular extension (11; 21).
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: August 7, 2007
    Assignee: Patent-Treuhand-Gesellschaft fur electrische Glühlampen mbH
    Inventors: Jürgen Gräf, Andreas Hohlfeld, Michael Hülsemann, Anton Schlögl, Karen Twesten
  • Electric lamp with outer bulb and associated support body
    Patent number: 7221098
    Abstract: The lamp comprises a discharge vessel (2) which is closed off in a vacuum-tight manner and is arranged in an outer bulb (12), a getter material being held on a support body inside the outer bulb (12). The support body is a support strip (31) to which the getter material is applied, the support strip being bent in such a way that it is automatically held in the outer bulb (12) without the need for any auxiliary means.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: May 22, 2007
    Assignee: Patent-Treuhand-Gesellschaft für elektrische Glülampen mbH
    Inventors: Jürgen Gräf, Andreas Hohlfeld, Michael Hülsemann, Anton Schlögl, Karen Twesten
  • Process for producing an electric lamp with outer bulb
    Patent number: 7112116
    Abstract: The process comprises the provision of a discharge vessel (2) which is closed off on one side, fitting a second tube over part of the discharge vessel and evacuating and filling the volume of the outer bulb via a pumping hole, which remains open in the second extension part within the second tube. This pumping hole is only closed at the end by means of an operation which closes it by rolling.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: September 26, 2006
    Assignee: Patent-Treuhand-Gesellschaft für elektrisch Glühlampen mbH
    Inventors: Jürgen Gräf, Andreas Hohlfeld, Michael Hülsemann, Anton Schlögl, Karen Twesten
  • Electric lamp with outer bulb and associated support body
    Publication number: 20040256986
    Abstract: The lamp comprises a discharge vessel (2) which is closed off in a vacuum-tight manner and is arranged in an outer bulb (12), a getter material being held on a support body inside the outer bulb (12). The support body is a support strip (31) to which the getter material is applied, the support strip being bent in such a way that it is automatically held in the outer bulb (12) without the need for any auxiliary means.
    Type: Application
    Filed: June 2, 2004
    Publication date: December 23, 2004
    Applicant: Patent-Treuhand-Gesellschaft fur elekrtrische Gluhlampen gbH
    Inventors: Jurgen Graf, Andreas Hohlfeld, Michael Hulsemann, Anton Schlogl, Karen Twesten
  • Process for producing an electric lamp with outer bulb
    Publication number: 20040253897
    Abstract: The process comprises the provision of a discharge vessel (2) which is closed off on one side, fitting a second tube over part of the discharge vessel and evacuating and filling the volume of the outer bulb via a pumping hole, which remains open in the second extension part within the second tube. This pumping hole is only closed at the end by means of an operation which closes it by rolling.
    Type: Application
    Filed: June 2, 2004
    Publication date: December 16, 2004
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN GBH
    Inventors: Jurgen Graf, Andreas Hohlfeld, Michael Hulsemann, Anton Schlogl, Karen Twesten
  • Lamp which is closed on two sides
    Publication number: 20040251834
    Abstract: The elongate bulb (1) of the lamp, which defines a longitudinal axis (A), is closed at opposite ends by sealing parts (6; 32), with in each case one cap being fitted at one end, the cap having an electrical contact element (13; 25) which is connected in an electrically conductive manner to a supply conductor (15; 21) leading to a luminous means, the contact element being accommodated in a tubular extension (11; 22) of the sealing part; the contact element (13; 25) has an attachment part (14; 24) which is directed inward toward the lamp interior and is equipped with at least two barbs (20; 26) which are in contact with the tubular extension (11; 21).
    Type: Application
    Filed: May 28, 2004
    Publication date: December 16, 2004
    Applicant: Patent-Treuhand-Gesellschaft fur Elektrische GluhlAMPEN mbH
    Inventors: Jurgen Graf, Andreas Hohlfeld, Michael Hulsemann, Anton Schlogl, Karen Twesten