Abstract: A bipin fluorescent-lamp holder has a housing formed with an outwardly open housing mouth and a rotor rotatable in the housing adjacent the mouth about an axis and having a diametrally throughgoing rotor slot. The rotor is rotatable between an installation position with the rotor slot aligned with the slot and an angularly offset contact position with the slot not aligned with the mouth. The rotor and housing are 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 pins are aligned with the slot and project into ends of the slot and into engagement with the pins only in the contact position of the rotor.

Abstract: A bipin fluorescent-lamp holder has a housing formed with an outwardly open housing mouth and a rotor rotatable in the housing adjacent the mouth about an axis and having a diametrally throughgoing rotor slot. The rotor is rotatable between an installation position with the rotor slot aligned with the slot and an angularly offset contact position with the slot not aligned with the mouth. The rotor and housing are 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 pins are aligned with the slot and project into ends of the slot and into engagement with the pins only in the contact position of the rotor.

Abstract: A bipin fluorescent-lamp holder has a housing formed with an outwardly open housing mouth and a rotor rotatable in the housing adjacent the mouth about an axis and having a diametrally throughgoing rotor slot. The rotor is rotatable between an installation position with the rotor slot aligned with the slot and an angularly offset contact position with the slot not aligned with the mouth. The rotor and housing are 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 pins are aligned with the slot and project into ends of the slot and into engagement with the pins only in the contact position of the rotor.

Abstract: A bipin fluorescent-lamp holder has a housing formed with an outwardly open housing mouth and a rotor rotatable in the housing adjacent the mouth about an axis and having a diametrally throughgoing rotor slot. The rotor is rotatable between an installation position with the rotor slot aligned with the slot and an angularly offset contact position with the slot not aligned with the mouth. The rotor and housing are 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 pins are aligned with the slot and project into ends of the slot and into engagement with the pins only in the contact position of the rotor.

Abstract: A lampholder has an inner part centered on an axis and formed with a radially extending and axially open inner slot having a predetermined small width. It also has an outer part surrounding the inner part and formed relative to the axis with a radially extending and axially open outer slot of a predetermined large width. A lamp pin of a width greater than the small width but smaller than the large width cannot slide through the outer slot into the inner slot. The inner part is separable from the outer part.

Abstract: A lampholder has an inner part centered on an axis and formed with a radially extending and axially open inner slot having a predetermined small width. It also has an outer part surrounding the inner part and formed relative to the axis with a radially extending and axially open outer slot of a predetermined large width. A lamp pin of a width greater than the small width but smaller than the large width cannot slide through the outer slot into the inner slot. The inner part is separable from the outer part.

Abstract: A lampholder having an inner part and an outer part is formed relative to an axis with a radially extending and axially open slot in turn having an inner portion in the inner part and an outer portion in the outer part. The portions are alignable with each other and both have a predetermined large width. An adapter has a body shaped to fit with one of the lampholder parts and having a formation engaged in the respective slot portion to define therein an adapter slot aligned with the respective slot portion and of a small width substantially less than the predetermined large width so that a lamp pin of a width greater than the small width but smaller than the large width cannot slide through the one slot portion. The adapter body is fixed to the one part of the lampholder.

Abstract: A lampholder having an inner part and an outer part is formed relative to an axis with a radially extending and axially open slot in turn having an inner portion in the inner part and an outer portion in the outer part. The portions are alignable with each other and both have a predetermined large width. An adapter has a body shaped to fit with one of the lampholder parts and having a formation engaged in the respective slot portion to define therein an adapter slot aligned with the respective slot portion and of a small width substantially less than the predetermined large width so that a lamp pin of a width greater than the small width but smaller than the large width cannot slide through the one slot portion. The adapter body is fixed to the one part of the lampholder.

Abstract: A socket for a bipin lamp has a relatively stationary body, a pair of contacts in the body symmetrically flanking an axis of the body, and a rotor formed with an axially open and generally diametrally extending slot and pivotal on the body about the axis between an outwardly open position and a crosswise position. Pins of the lamp are insertable into the slot and engageable with the contacts in the crosswise position. An operating part has a disk fixed to the rotor and formed with a slot aligned axially with the rotor slot and an arm fixed on and projecting radially from the disk past the lamp when the pins are in the slots. Thus a user can fit the lamp pins to the slots and pivot the rotor between the positions by the arm to engage the pins with the contacts.

Abstract: A socket for a bipin lamp has a relatively stationary body, a pair of contacts in the body symmetrically flanking an axis of the body, and a rotor formed with an axially open and generally diametrally extending slot and pivotal on the body about the axis between an outwardly open position and a crosswise position. Pins of the lamp are insertable into the slot and engageable with the contacts in the crosswise position. An operating part has a disk fixed to the rotor and formed with a slot aligned axially with the rotor slot and an arm fixed on and projecting radially from the disk past the lamp when the pins are in the slots. Thus a user can fit the lamp pins to the slots and pivot the rotor between the positions by the arm to engage the pins with the contacts.

Abstract: A fluorescent-lamp socket has a hollow dielectric housing, and a pair of identical conductive contact elements in the housing, each contact element is unitarily formed with an outer lamp-contacting end adapted to engage a respective pin of the lamp, an inner wiring end formed as a wire-engaging clip, a center part extending between the respective inner and outer ends, and an elastic tongue unitarily formed with the respective center part and projecting transversely toward the other contact element. The contact elements are formed of resilient sheet metal. The housing can include a web projecting between and holding apart the elastic tongues. Alternately it can be constructed such that either the tongues bear on each other and electrically interconnect the contact elements or each tongue bears on the center part of the other contact element to electrically interconnect the contact elements.

Abstract: A fluorescent-lamp socket has a hollow dielectric housing, and a pair of identical conductive contact elements in the housing, each contact element is unitarily formed with an outer lamp-contacting end adapted to engage a respective pin of the lamp, an inner wiring end formed as a wire-engaging clip, a center part extending between the respective inner and outer ends, and an elastic tongue unitarily formed with the respective center part and projecting transversely toward the other contact element. The contact elements are formed of resilient sheet metal. The housing can include a web projecting between and holding apart the elastic tongues. Alternately it can be constructed such that either the tongues bear on each other and electrically interconnect the contact elements or each tongue bears on the center part of the other contact element to electrically interconnect the contact elements.

Abstract: A fluorescent-lamp socket assembly has a socket, a standard base, and a starter base. The socket has a nonconductive housing having an open end and a pair of conductors in the housing engageable with contact pins of a lamp fitted to the housing and exposed in the open housing end. The standard base is shaped to fit complementarily into and close the open housing end and is formed with throughgoing holes through which wires can be engaged with the conductors. The starter base has a one-piece nonconductive housing having a plug end shaped to fit complementarily into and close the open housing end and an opposite end adapted to hold a starter and a conductor inside the starter-base housing for connecting a starter in the opposite end with one of the conductors in the socket.