Lighting fixture support for a tubular electric lamp

Claim 1

A LAMP HOLDER FOR USE IN A LIGHTING FIXTURE FOR A TUBULAR ELECTRIC LAMP COMPRISING, IN COMBINATION: (A) A UNITARY SHELL HAVING A BASE PORTION AND A RECEPTACLE PORTION, (1) THE BASE PORTION HAVING A FACE, (2) THE RECEPTACLE PORTION HAVING A FRONT WALL, A REAR WALL, AND TWO SIDE WALLS CONNECTING THE FRONT AND REAR WALLS, SAID WALLS EXTENDING FROM SAID BASE PORTION IN A DIRECTION TRANSVERSE TO SAID FACE AND DEFINING A CAVITY IN SAID RECEPTACLE PORTION, SAID BASE PORTION BEING FORMED WITH AN OPENING THEREIN COMMUNICATING WITH SAID CAVITY, (3) SAID SIDE WALLS DEFINING RESPECTIVE SHOULDERS ON SAID FACE AND BEING EACH FORMED WITH A SUBSTANTIALLY U-SHAPED SLOT THERETHROUGH, THE USHAPE BEING OPEN IN SAID TRANSVERSE DIRECTION AWAY FROM SAID FACE, AND THE SLOT DEFINING A TONG PORTION OF THE SIDE WALL, (4) SAID TONG PORTION BEING RESILIENTLY PIVOTABLE RELATIVE TO THE REMAINDER OF THE SIDE WALL INWARD AND OUTWARD OF THE CAVITY, AND NORMALLY PROJECTING FROM SAID REMAINDER IN AN OUTWARD LATERAL DIRECTION, AND HAVING A CAM FACE OPPOSITE AN ASSOCIATED SHOULDER WHEN IN THE NORMAL POSITION THEREOF, AND (5) SAID FRONT WALL BEING FORMED WITH A LAMP RECEIVING OPENING HAVING AN AXIS SUBSTANTIALLY PARALLEL TO SAID FACE; (B) TWO CONTACT ASSEMBLIES ARRANGED IN SAID CAVITY FOR SIMULTANEOUS ENGAGEMENT WITH RESPECTIVE PORTIONS OF A LAMP RECEIVED IN SAID OPENING OF THE FRONT WALL; AND (C) SECURING MEANS SECURING SAID ASSEMBLIES TO SAID RECEPTACLE PORTION.