Couplers are described herein. A coupler includes a coupler body, a plurality of first retaining fingers, and a plurality of second retaining fingers. The coupler body includes a first end and a second end, and defining a cavity, the cavity configured to receive a first connector and a second connector. The plurality of first retaining fingers are configured to engage against a collar of the first connector to prevent axial motion of the first connector relative to the coupler. The plurality of second retaining fingers are configured to engage against a shoulder of the second connector with a retention force, and release the second connector by radially expanding in response to a pullout force exerted on the second connector exceeding the retention force.

A fluid connection assembly, including a connector body, including a first end, a second end including a radially inward extending protrusion, a first through-bore, a gland, and at least one seal arranged in the gland, and a retainer operatively arranged to be removably connected to the connector body, the retainer including a ring portion forming a third end, the third end operatively arranged to enclose the at least one seal in the gland, at least one short finger extending from the ring portion, and at least one long finger extending from the ring portion and terminating at a fourth end, wherein when the retainer is connected to the connector body the at least one long finger extends out of the connector body from the second end.

A fluidic connection device couples a first end piece of a first tubing/equipment item and a second end piece of a second item/equipment item. The first constitutes a female end piece with a first tubular ending with a smooth internal face, the external face carrying a locking pin or claw. The second end piece constitutes a male end piece with a second tubular ending forming with the first tubular ending a mating part and whose smooth outer face forms a sealed link for the connection with the first tubular ending's smooth inner face. The second end piece includes: a skirt surrounding the mating part; and a spring tongue with a reception housing receiving the pin, locking the first and second end pieces together. The skirt is coupled to a rear part of the second tubular ending by an annular crown forming an introduction stop of the first tubular ending.

A connector, having a socket part and a plug part being insertable into a socket section of the socket part, wherein the plug part is provided with a retaining element for detachably retaining the plug part in the socket part, the retaining element having a retaining arm with at least one outwardly projecting engaging catch, a free end, and an end secured to the retaining element body and can be spring-elastically moved in the radial direction in relation to the plug part for blocking the engaging catch on a blocking surface or a blocking opening of the socket part and releasing it from same, and a locking device being provided for securing the blocking status of the plug part and socket part and for indicating an incorrect assembly thereof, the locking device cooperating with the retaining element, and being a radially insertable locking element that cooperates with the retaining element in the region of the retaining arm thereof.

A pipe device includes a pipe and a connection element. The pipe has a pipe jacket that has an inner surface and an outer surface and forms a flow channel. The connection element forms a through-channel that extends from a connection piece consisting of a first material (M1) and having a first opening to a second opening. The pipe jacket is positioned on the connection piece with a first pipe end consisting of a second material (M2). A bonded connection is formed between the first material (M1) and the second material (M2) in a contact region between the inner surface of the pipe jacket and a peripheral surface of the connection piece.

A connection to releasably connect and disconnect to a pipe to a fitting provides a pipe fitting body for receiving a pipe and a retaining ring assembly located within the fitting body for retaining and releasing the pipe. The retaining ring assembly has axially extending inwardly angled resilient retaining tabs, each of which has a pipe retaining portion. When the pipe is inserted into the fitting body to an inserted position, the pipe retaining portions engage an indentation on the pipe to retain the pipe in the inserted position. Relative movement of the axially extending inwardly angled resilient retaining tabs with respect to the fitting body from the first locked position to a second unlocked position causes each axially extending inwardly angled resilient retaining tabs to disengage from the indentation on the pipe permitting removal of the pipe from the inserted position in the fitting body.

A reversibly detachable fluid-line coupling (1), at least having a coupling sleeve (2, 3), a locking element (7) and a coupling plug (8). The invention was based on the object of providing a fluid-line coupling (1) of the type described in the introduction that can be constructed from plastic while avoiding the stated difficulties. Said object is achieved in that the locking component (7) is in the form of a flat, open spring-steel ring (70) which has latching claws (72) projecting radially into the interior of the spring-steel ring (70) and distributed over the circumference of the spring-steel ring (70) and which has axially oriented support tongues (73), wherein, in the region of the coupling head (2), the locking component (7) resiliently surrounds the coupling head (2) in such a way that the latching claws (72) project into the interior of the coupling sleeve (2, 3) through the slots (20) in the coupling head (2) and the support tongues (73) of the spring-steel ring (70) correspond to the support webs (21) of the coupling head (2) in such a way that in each case one support tongue (73) is assigned to one support web (21).

The present invention provides a quick connector made of plastics material for establishing a snapping connection between a tubular male part (50) and female part (40) of a fluid connection system. The connector has retaining means (10) adapted to be set within the mouth portion (41) of the female part (40) and having first and second flexing members (12, 22) for snapping engagement with the male part (50) and the female part (40), respectively. The first and second flexing members (12, 22) are provided at circumferentially spaced portions of the retaining means (10) so that the overall axial dimensioning of the retaining means (10) is reduced.

(FIG. 1)

The present invention provides a quick connector for establishing a snapping connection between a tubular male part (50) and a female part (40) of a fluid connection system. The connector has retaining means (10) adapted to be set within the mouth portion (41) of the female part (40) and having a resilient member (20) for snapping engagement with both a thickened portion (52) of the male part (50) and an annular groove (42) in the mouth portion (41) of the female part (40) when the resilient member (20), which is held by the retaining means (10) in an axially fixed position, is stretched in the radial direction due to the snapping engagement with the male part (50).

A system for sensing a physical property of a medium inside a conduit includes a radio frequency identification (RFID) reader arranged to transmit electromagnetic signals in at least one radio frequency. An RFID tag receives the least one radio frequency and exchanges the received radio frequency to electrical energy powering the RFID tag. An included sensor electrically connected to the RFID tag receives the electrical energy from the RFID tag and powers the sensor to obtain measurement data of at least one physical property of the medium and transmit the measurement data to the RFID tag. The RFID tag transmits the measurement data to the RFID reader using the at least one radio frequency.