Patent ID: 7736163

Claim:
In combination with a fluorescent lamp having an end provided with a pair of projecting, parallel, and spaced contact pins, a lamp holder comprising: a housing formed with an outwardly open housing mouth; a rotor rotatable in the housing adjacent the mouth about an axis and having a diametrally throughgoing rotor slot, the rotor being rotatable between an installation position with the rotor slot aligned with the mouth and an angularly offset contact position with the slot not aligned with the mouth, the rotor and housing being so dimensioned as to receive the pins extending parallel to the axis and to move the pins in a circular orbit centered on the axis on rotation of the rotor in the housing; and contacts in the housing diametrally flanking the axis each having a main part lying outside the orbit and a contact part engageable into the orbit, the contacts parts each being formed as a narrow radially inwardly projecting edge fittable into the respective end of the slot and both being aligned with the slot and projecting into ends of the slot and into engagement with the pins only in the contact position of the rotor; and spring means urging the contact parts radially inward into the orbit while leaving the main parts of the contacts outside the orbit.