Patents by Inventor John M. Koelger

John M. Koelger 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 assembly
    Patent number: 7423366
    Abstract: A lamp assembly includes a reflector body having an integral crimping portion that extends inwardly over a channel formed in the reflector body, a seal feature arranged within the channel, a cathode assembly having an edge feature extending into the channel, and a resilient member held in a state of compression between the crimping portion and a first surface of the edge feature such that an opposing second surface of the edge member is held against the sealing feature thereby creating a hermetic seal between the cathode assembly and the reflector body wherein the crimping portion is configured to remain in contact with the resilient member if the hermetic seal becomes non-hermetic.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: September 9, 2008
    Inventors: John M. Koelger, P. Guy Howard
  • Lamp assembly
    Patent number: 7358657
    Abstract: A lamp assembly includes a reflector body having an integral crimping portion that extends inwardly over a channel formed in the reflector body, a seal feature arranged within the channel, a cathode assembly having an edge feature extending into the channel, and a resilient member held in a state of compression between the crimping portion and a first surface of the edge feature such that an opposing second surface of the edge member is held against the sealing feature thereby creating a hermetic seal between the cathode assembly and the reflector body.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: April 15, 2008
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: John M. Koelger, P. Guy Howard