Abstract: An elastic electrical contact housed in a guide shaft of an apparatus, wherein the guide shaft includes an open front end and an opened back end, and wherein the contact includes a deformable conductor having a front portion and a flexible back portion. A mobile contact head is arranged in an area of the open front end of the guide shaft. A coil spring surrounds the front portion of the deformable conductor. The coil spring extends between the mobile contact head and a retaining sleeve. The retaining sleeve is arranged in an area of the open back end of the guide shaft. The retaining sleeve is fixed to the deformable conductor. The flexible back portion of the deformable conductor extends outwardly from the open back end of the guide shaft. The mobile contact head is connected to a connection terminal of a supply cable via the back portion of the deformable conductor.

Abstract: Electrical contact having an impervious connection, adapted to be housed in a guiding shaft open at its two ends, the contact comprising a terminal, a member and a deformable conductor. A movable contact head is connected to the terminal for connecting the member by way of the deformable conductor. A retaining element is fixed to the deformable conductor, a helical spring surrounding the deformable conductor and being supported at a first end on the contact head and at a second end on the retaining element. The contact head is biased by the helical spring working in compression. At least one stationary tubular gasket surrounds the terminal, at least partially, so as to encircle the member.

Abstract: The invention concerns an elastic electrical contact with axial pressure, comprising an adjustable connection terminal designed to be housed in a guide shaft (2) open at both ends, provided in an apparatus to be equipped (A), and comprising a mobile contact head (5) connected to a connection terminal (10) of a supply cable (9), by a deformable conductor (5), the contact head (3) being stressed by a coil spring (8) operating by compression which encloses said deformable conductor and which is supported at each of its ends, respectively on the contact head (3) and on a retaining element (4) which is housed in the base of the guide shaft (2) and fixed to the deformable conductor.

Abstract: The invention relates to an axial-compression spring electrical contact having an impervious connection, adapted to be housed in a guiding shaft open at its two ends, arranged in an apparatus to be equipped and including a movable contact head connected to a terminal for connecting a feeding cable by a deformable conductor, the contact head being biased by a helical spring working in compression which surrounds the deformable conductor and takes support, at each of its ends, on the contact head and on a retaining element, respectively, which retaining element is housed in the bottom of the guiding shaft and is fixed to the deformable conductor. The contact is characterized in that at least one tubular gasket is immobilized in the bottom of the guiding shaft, extends through this bottom and surrounds the connecting terminal, at least partially, so as to encircle the outer sheath of the feeding cable.

Abstract: Selective device for electrical connection is provided with a plug with multiple contacts designed to engage with the corresponding contacts of a socket, while a safety disk and a complementary disk mounted pivotally on the socket are provided with openings designed for passage of the contacts of the plug and are arranged so as to be entrained in rotation by the plug when the latter is locked on the socket from an initial position which is locked by a locking system that is disengaged when the plug is introduced into the socket. The locking system only acts on the complementary disk while a locking mechanism is provided between the complementary disk and the safety disk in order that the safety disk can be locked in a plurality of pre-established angular positions relative to the complementary disk so that the safety disk can be given an initial position at will by acting on the locking mechanism.