Electric lighting apparatus

• US 3,194,957 A
• Filed: 01/04/1961
• Issued: 07/13/1965
• Est. Priority Date: 01/04/1961
• Status: Expired due to Term

• Current Assignee: Hubert Hodgson Charles, James Caldwell, Thomas Hopwood John
• Original Assignee: Hubert Hodgson Charles, James Caldwell, Thomas Hopwood John
• Inventors: Caldwell, James, HUBERT HODGSON CHARLES, THOMAS HOPWOOD JOHN
• Application Number:
  US04/080,650
• Time in Patent Office: 1,651 Days
• US Class Current: 362/264
• CPC Class Codes: F21V 23/02 the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
• CPC Class Codes: Y10S 174/02 Ballasts

Claims

1. IN A SYMMETRICAL, ANNULAR, ELECTRIC LIGHTING FITTING THE COMBINATION OF TERMINAL BLOCK MEANS ADAPTED TO BE AFFIXED TO A SUPPORT;

A LAMP HOLDER IN SAID FITTING, ELECTRICALLY CONNECTED TO SAID TERMINAL BLOCK MEANS;

AN ELECTRIC DISCHARGE LAMP BULB DETACHABLY MOUNTED IN SAID LAMP HOLDER, SAID LAMP, LAMP HOLDER AND TERMINAL BLOCK MEANS HAVING A COMMON LONGITUDINAL AXIS;

AN ANNULAR UPPER HOUSING ASSOCIATED WITH SAID TERMINAL BLOCK MEANS, SAID HOUSING ENCIRCLING SAID COMMON AXIS AT A SPACED LATERAL DISTANCE THEREFROM, PROXIMATE SAID LAMP HOLDER, AND DEFINING AN ANNULAR SPACE THEREAROUND FOR RECEIVING A CHOKE;