Patents by Inventor Herman J. Engel

Herman J. Engel 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).

  • Electrical adapter for use in connection with fluorescent lamps
    Patent number: 4623823
    Abstract: An electrical adapter assembly for enabling use of a fluorescent lamp in connection with an incandescent lighting fixture comprises a hollow and cylindrical housing, an Edison-type base extending from one end of the housing and a cover enclosing the end of the housing opposing the base. A toroidal ballast is located within the housing and is capable of receiving portions of the fluorescent lamp within hollow central portions of the ballast to enhance spacial efficiency. The base is either affixed to the housing, or alternatively, is rotatingly associated with the housing to provide a security feature.
    Type: Grant
    Filed: November 5, 1985
    Date of Patent: November 18, 1986
    Inventor: Herman J. Engel
  • Electrical adapter for use in connection with fluorescent lamps
    Patent number: 4570105
    Abstract: An electrical adapter assembly for enabling use of a fluorescent lamp in connection with an incandescent lighting fixture comprises a hollow and cylindrical housing, an Edison-type base extending from one end of the housing and a cover enclosing the end of the housing opposing the base. A toroidal ballast is located within the housing and is capable of receiving portions of the fluorescent lamp within hollow central portions of the ballast to enhance spacial efficiency. The base is either affixed to the housing, or alternatively, is rotatingly associated with the housing to provide a security feature.
    Type: Grant
    Filed: September 20, 1983
    Date of Patent: February 11, 1986
    Inventor: Herman J. Engel
  • Adapter base for electric lamp
    Patent number: D284652
    Type: Grant
    Filed: July 7, 1983
    Date of Patent: July 15, 1986
    Inventor: Herman J. Engel
  • Adapter base for electric lamp
    Patent number: D284757
    Type: Grant
    Filed: July 7, 1983
    Date of Patent: July 22, 1986
    Inventor: Herman J. Engel
  • Combined fluorescent lamp and electrical adapter therefor
    Patent number: D284793
    Type: Grant
    Filed: July 7, 1983
    Date of Patent: July 22, 1986
    Inventor: Herman J. Engel
  • Combined fluorescent lamp and electrical adapter therefor
    Patent number: D285007
    Type: Grant
    Filed: July 7, 1983
    Date of Patent: August 5, 1986
    Inventor: Herman J. Engel
  • Adapter base for fluorescent lamp
    Patent number: D291556
    Type: Grant
    Filed: September 26, 1984
    Date of Patent: August 25, 1987
    Inventor: Herman J. Engel
  • Adapter base for fluorescent lamp
    Patent number: D291557
    Type: Grant
    Filed: September 26, 1984
    Date of Patent: August 25, 1987
    Inventor: Herman J. Engel