Spring rings and closed wire loops each can have two ends that are connected. The connected ends can be welded. The connected ends can be aligned for welding by incorporating complementary surfaces so that when joined, the tip at the first end mate to the tip at the second end. The mating can be self-aligning spatially and radially. The spring rings and the closed wire loops can be used in many applications, including in connector applications and seal applications.

Spring rings and closed wire loops each can have two ends that are connected. The connected ends can be welded. The connected ends can be aligned for welding by incorporating complementary surfaces so that when joined, the tip at the first end mate to the tip at the second end. The mating can be self-aligning spatially and radially. The spring rings and the closed wire loops can be used in many applications, including in connector applications and seal applications.

Quick coupling including casing defining longitudinal axis, outlet and inlet, to receive at the inlet at least part of external connector to fluidity connect external connector and outlet, shutter housed within casing to translate along longitudinal axis in opposition to opposing element, housing at least part of external connector and including retainer to lock at least part of external connector within shutter in at least one position along longitudinal axis, controller accessible from outside and including first slider housed within casing to translate along locking direction skewed relative to longitudinal axis in opposition to second opposing element, to house at least part of the shutter and including lock to lock the shutter within first slider in position along locking direction, and safety to lock shutter when subjected to pressures above predetermined threshold by fluid present within coupling, wherein the shutter locks external connector at least when safety locks shutter.

The pipe coupling member has a female pipe coupling body, and a cylindrical front and rear cover members fitted to the female pipe coupling body. The front cover member includes a communication assembly including a communication terminal, a communication cable extending rearward from the communication terminal inside the front cover member and further extending rearward from the rear end of the female pipe coupling body, and a connector terminal at the rear end of the communication cable. The rear cover member is configured to allow the connector terminal to be passed forward inside the rear cover member along a hose attached to the rear end of the female pipe coupling body when the rear cover member is displaced rearward in a state where the hose and the communication cable are allowed to pass inside the rear cover member.

The pipe coupling member has a female pipe coupling body, and a cylindrical front and rear cover members fitted to the female pipe coupling body. The front cover member includes a communication assembly including a communication terminal, a communication cable extending rearward from the communication terminal inside the front cover member and further extending rearward from the rear end of the female pipe coupling body, and a connector terminal at the rear end of the communication cable. The rear cover member is configured to allow the connector terminal to be passed forward inside the rear cover member along a hose attached to the rear end of the female pipe coupling body when the rear cover member is displaced rearward in a state where the hose and the communication cable are allowed to pass inside the rear cover member.

A female fluid connection element (5), configured to be coupled with a male element (4). A female body (21), which has an insertion channel (27) of the male element (4); locking elements (31) movable between positions; and a maneuvering ring (71) with an inner sleeve (75) for driving the locking element (31) to their proximal position. In order to have a small bulk and to offer particularly easy and reliable locking and unlocking, the female element (5) has a return plunger (33), returning the locking elements (31) toward their distal position, and a resilient member (43), exerting a return force to bring the return plunger (33) back toward a forward position. By being moved toward its withdrawn position, the maneuvering ring (71) drives the return plunger (33) toward a rear position, such that it does not exert a return force on the locking elements (31).

The invention relates to a female quick coupling element (200) comprising a hollow female body (204) defining a central axis (X200), locking members (208), each locking member being radially movable inside a corresponding radial opening (204.1) of the female body between a locked position and an unlocked position, at least one memory element (206), movable along a movement axis (D206) between a distal position, in which it opposes the movement of a locking member from the unlocked position to the locked position, and a proximal position, and a locking ring (218), which is axially movable between a forward position, in which it keeps the locking members in the locked position, and a withdrawn position. Each memory element (206) is received in a housing defined in the thickness of the body. Each memory element (206) is, in the distal position, closer to the central axis (X200) than the locking members (208) are in the unlocked position, and the movement axis (D206) of each memory element is inclined relative to the central axis (X200) of the female body.

The invention relates to a female quick coupling element (200) comprising a hollow female body (204) defining a central axis (X200), locking members (208), each locking member being radially movable inside a corresponding radial opening (204.1) of the female body between a locked position and an unlocked position, at least one memory element (206), movable along a movement axis (D206) between a distal position, in which it opposes the movement of a locking member from the unlocked position to the locked position, and a proximal position, and a locking ring (218), which is axially movable between a forward position, in which it keeps the locking members in the locked position, and a withdrawn position. Each memory element (206) is received in a housing defined in the thickness of the body. Each memory element (206) is, in the distal position, closer to the central axis (X200) than the locking members (208) are in the unlocked position, and the movement axis (D206) of each memory element is inclined relative to the central axis (X200) of the female body.

A spring latching connector includes a housing having a bore therethrough, a piston slidably received in said bore, a circular groove formed in one of said bore and piston and a circular coil spring disposed in said groove for latching said piston and housing together. The groove is sized and shaped for controlling, in combination with a spring configuration, disconnect and connect forces of the spring latching connection.

A spring latching connector includes a housing having a bore therethrough, a piston slidably received in said bore, a circular groove formed in one of said bore and piston and a circular coil spring disposed in said groove for latching said piston and housing together. The groove is sized and shaped for controlling, in combination with a spring configuration, disconnect and connect forces of the spring latching connection.