Abstract: A zero insertion force connector for a rectangular chip carrier and a closure clip for such a connector, comprising on the one hand a rectangular base and on the other a clip formed by a rectangular frame coming to bear on the upper part of the carrier, said clip being fixed to said base by hooks disposed at the four corners of the rectangular frame and cooperating with corresponding housings in the base. Said clip further comprises at least two oppositely disposed bearing arms connected together by two cross arms, each bearing arm comprising substantially in the middle thereof a bearing zone to which are connected two symmetrical half arms forming a V in the free condition, the ends of said half arms situated in the vicinity of said hooks being at a level higher than the bearing zone when said clip is in the free condition and substantially at the same level thereas when it is fixed to said base.

Abstract: A connector having at least one contact with a resiliently deformable arm, inserted longitudinally in a socket formed in an insulating block and having longitudinal generatrices, and comprising: a body cooperating with at least one edge of the socket so that, once the contact has been inserted, it has a longitudinal axis substantially parallel to the direction of the generatrices of the socket; an output terminal disposed at a longitudinal end of the body of the contact and extending beyond the socket; an extention forming an abutment for the contact on the insulating block in the direction of insertion of the contact; and a resilient tongue cooperating with a stopping face of a retention cavity disposed in the socket so as to form an abutment in the direction opposite the direction of insertion of the contact; the resiliently deformable arm being disposed at the other longitudinal end of the body and extending beyond the socket.

Abstract: A connector for plug-in card circuits is provided with at least one connecting-strip constituted by a parallelepipedal base and cover-plate for supporting a plurality of resilient electrical contact elements. The cover-plate is capable of pivotal displacement with respect to the base for inserting the edge of a card in the open position and establishing an electrical contact between the conductive elements of the strip and of the card in the closed position. Deformation of the strip in the closed position is prevented by a clip in the form of a U-section member having a resilient central portion, the two arms of which are applied respectively on the base of the connecting-strip and on the cover-plate.

Abstract: A card-edge connector support providing electric and thermal connections for cards or boards of the printed circuit type in which removal of thermal energy constitutes an essential requirement. The support comprises a common flat base adapted to carry a plurality of strip connectors placed at right angles to each other, a groove being formed in each strip for receiving one edge of the card. The opposite internal faces of the groove are adapted to carry electrical and thermal contacts respectively, the bearing force for heat transmission being obtained by elastic deformation of the electrical contacts.