Abstract: A connector suitable to be connected to a multi port extruded tube comprises a socket suitable for an end section of a multi port extruded tube to inserted into the socket along a linear insertion direction, whereby the socket contains an end section receiving space suitable to receive the end section of a multi port extruded tube, the end section receiving space bordering a first opening suitable for a multi port extruded tube to extend through it, whereby a cap arranged inside the socket such that the cap can slide from a forward position that is closer to the first opening to a backward position that is further away from the first opening, the cap having an outer circumferential surface whereby a sealing is provided inside the socket that contacts the outer circumferential surface of the cap in the forward position of the cap.

Abstract: A coupling comprising a receiving part (1), a securing part (9) and an insertion part (17) includes blocking elements (6, 13?) whose engagement preventing the securing part (9) from moving from an extended position into a retracted position is released by the axial displacement of latching arms (13) of the securing part (9) under the effect of a retaining ring (22) upon the insertion of said insertion part (17), such that when the insertion part (17) is properly arranged in a receiving space (16) of the receiving part (1), the securing part (9) can be shifted into the retracted position in which said insertion part (17) is secured. What is achieved in this way is relatively simple modification of the assembly force through design measures, high wear resistance, and simple and operationally reliable manipulation of the inventive coupling with regard to the release of the connection between the receiving part and the insertion part, especially under confined spatial conditions.

Abstract: A coupling for a fluid conducting system comprises an elongated coupling part (1) and a locking part (20), which can be displaced in a direction perpendicular to the longitudinal direction and which can be mounted on the coupling part (1) in a manner that enables it to slide. The guiding of the locking part (20) ensues via detent elements (24, 25) that engage inside guide recesses (13) of the coupling part (1). The locking part (20) can be fixed in a releasing position or in a locking position by the engagement of detent projections (26, 27) inside releasing recesses (18, 19) or inside locking recesses (16, 17). This enables a relatively problem-free operating of the coupling during opening and closing.

Abstract: A device for sealingly linking two end pieces (24) of a fluid line system, comprises a casing part (1) and an inner part (13). The inner part (13) is arranged in a prefabricated arrangement within the casing part (1) in an axially displaceable manner and serves to fixate a sealing unit (21) that is detachably linked with the inner part (13) until an end piece (25) is inserted into the casing part (1) via an introduction area (3) and comes into contact with the inner part (13). When the end piece (25) is inserted, the inner part (13) is axially expelled from the casing part (1), whereby the sealing unit (21) is inhibited in its axial movement by an abutment (12) and remains within the casing part (1). The two end pieces can be sealingly linked while indicating the relative position of the end piece (25) coming into contact with the inner part (13) without requiring a separate handling of the sealing unit (21).

Abstract: A locking element for a quick connector is provided with a matable element releasably connectable to a receiving element of the quick connector. An actuating element is in engagement with the matable element and is mounted within the matable element such that it is displaceable between a released position and a locked position. The actuating element includes a locking device that can be brought into engagement with a retaining ring on an insertable element of the quick connector in an arrangement wherein the locking device is mated with the receiving element in the locked position. Secure attachment of the locking element to the quick connector and ease of use are thereby achieved.

Abstract: The invention relates to a coupling comprising a receiving part (1) and a fixing part (10), which have a blocking assembly (15, 16, 17). If the insertion part has not been introduced into the receiving part (1) correctly, elements (15, 16, 17) of the blocking assembly that are configured on the receiving part (1) and on the fixing part (10) engage with one another in such a way that the fixing part (10) is prevented from being retracted from the extended position. Arms (11, 12) of the fixing part (10) are configured in such a way that when a retaining ring of the insertion part is positioned in the vicinity of said arms (11, 12), the engagement of the elements (15, 16, 17) of the blocking assembly is released and the fixing part (10) can be displaced into the retracted position to engage behind the retaining ring by means of the retraction section. This permits an efficient mounting operation.

Abstract: The invention relates to a coupling comprising a receiving part (2) and a fixing part (1) which can be introduced into the receiving part (2), which comprises at least one rear snap-on piece (6) enabling an insertion part (15) to be connected to the receiving part (2) by rear catching a retaining ring (17). The fixing part (1) comprises an annular sleeve (4), wherein each rear snap-on piece (6) and at least one blocking piece (8) are attached by means of a flexible strip (5, 7). After inserting the insertion part (15), each blocking piece (8) is blocked in a radial manner in the inward direction by the insertion part (15) in the movement of the spring by the insertion part (15), such that it is opposite the stop wall (29) of an abutment wall (30). Each rear snap-on piece (6) is covered by a cover wall (27) such that access from the outside to each blocking piece (8) is prevented.

Abstract: A coupling has a locating part (1) into which a plug-in part can be inserted, and a locking part (7) which, after insertion of the plug-in part, can be moved from a projecting prefitting position into a pushed-in locking position. There is a control part (12) which has a C-shaped basic body formed with side legs (13, 14) and encloses, in the prefitting position of the locking part (7), a section (16) of the locating part (1). The control part (12) comprises a stop section (18), which, in the prefitting position of the locking part (7), bears in a stop position against the locking part (7) and which, in the locking position of the locking part (7), is disengaged from the locking part (7), wherein the control part (12), in the locking position of the locking part (7) can be displaced in the axial direction from the stop position into a removal position, in which it can be removed from the locating part (1).

Abstract: A coupling comprising a receiving part (1), a securing part (9) and an insertion part (17) includes blocking elements (6, 13?) whose engagement preventing the securing part (9) from moving from an extended position into a retracted position is released by the axial displacement of latching arms (13) of the securing part (9) of said insertion part (17), such that when the insertion part (17) is properly arranged in a receiving space (16) of the receiving part (1), the securing part (9) can be shifted into the retracted position in which said insertion part (17) is secured. What is achieved in this way is relatively simple modification of the assembly force through design measures, high wear resistance, and simple and operationally reliable manipulation of the inventive coupling with regard to the release of the connection between the receiving part and the insertion part, especially under confined spatial conditions.

Abstract: A coupling for a fluid conducting system comprises an elongated coupling part (1) and a locking part (20), which can be displaced in a direction perpendicular to the longitudinal direction and which can be mounted on the coupling part (1) in a manner that enables it to slide. The guiding of the locking part (20) ensues via detent elements (24, 25) that engage inside guide recesses (13) of the coupling part (1). The locking part (20) can be fixed in a releasing position or in a locking position by the engagement of detent projections (26, 27) inside releasing recesses (18, 19) or inside locking recesses (16, 17). This enables a relatively problem-free operating of the coupling during opening and closing.

Abstract: A locking element (10) for a quick connector is provided with a matable element (11) on which are configured means for effecting a snap connection (18, 19) with a receiving element of a quick connector, and an actuating element (15) that is in engagement with the matable element (11) and is mounted in the matable element (11) such that it is displaceable between a released position and a locked position. The actuating element (15) comprises locking means (22, 23, 25, 26) that can be brought into engagement with a retaining ring configured on an insertable element of the quick connector in an arrangement of the locking element (10) wherein it is mated onto a receiving element in the locked position. Secure attachment of the locking element (10) to the quick connector and ease of use are thereby achieved.

Abstract: The invention relates to a coupling comprising a receiving part (1) and a fixing part (10), which have a blocking assembly (15, 16, 17). If the insertion part has not been introduced into the receiving part (1) correctly, elements (15, 16, 17) of the blocking assembly that are configured on the receiving part (1) and on the fixing part (10) engage with one another in such a way that the fixing part (10) is prevented from being retracted from the extended position. Arms (11, 12) of the fixing part (10) are configured in such a way that when a retaining ring of the insertion part is positioned in the vicinity of said arms (11, 12), the engagement of the elements (15, 16, 17) of the blocking assembly is released and the fixing part (10) can be displaced into the retracted position to engage behind the retaining ring by means of the retraction section. This permits an efficient mounting operation.

Abstract: A coupling having a receiver (1), for receiving an insert (3) formed with a retaining ring (2), and a locking element (10) having two arms (11, 12) and a retaining portion (14). The locking element (10) fits into a receiving space (7) of the receiver (1) and is movable between a raised and a pushed-in position. A lifting bevel (16) is formed on the locking element (10) and cooperates with the retaining ring (2) of the insert (3) so that the locking element (10) can be moved from the pushed-in position to the raised position. The coupling also comprises a prelock assembly (30) and a pullback assembly (18, 19, 22, 23), which cooperate so that when the retaining ring (2) is moved in the insertion direction into position behind the lifting bevel (16), the prelock assembly (30) engages behind the retaining ring (2) and the pullback assembly (18, 19, 22, 23) shifts the locking element (10) into a prelocked position.

Abstract: The invention relates to a device for sealingly linking two end pieces (24) of a fluid line system, comprising a casing part (1) and an inner part (13). Said inner part (13) is arranged in a prefabricated arrangement within the casing part (1) in an axially displaceable manner and serves to fixate a sealing unit (21) that is detachably linked with the inner part (13) until an end piece (25) is inserted into the casing part (1) via an introduction area (3) and comes into contact with the inner part (13). When the end piece (25) is inserted, the inner part (13) is axially expelled from the casing part (1), whereby the sealing unit (21) is inhibited in its axial movement by an abutment (12) and remains within the casing part (1). The invention provides a device with which two end pieces can be sealingly linked while indicating the relative position of the end piece (25) coming into contact with the inner part (13) without requiring a separate handling of the sealing unit (21).

Abstract: A separable rapid-action coupling serves for connecting fluid lines includes a tubular plug-in part with a circumferential holding rib, a coupling housing with a cylindrical receptacle cavity for the plug-in part and a separate holding element. The holding element has elastically expandable holding edges that are radially directed into the receptacle cavity. The holding edges engage behind the holding rib after insertion of the plug-in part. A safety clip with a second locking mechanism is situated in front of the plug-in opening of the housing in case the snap-in mechanism of the holding element fails. The safety clip includes a frame that fits on the end face of the coupling housing and two elastically expandable clips that engage corresponding projections on the coupling housing. The safety clip has snap-in fingers that can be inserted into the receptacle cavity.

Abstract: The separable rapid-action coupling serves for connecting fluid lines, in particular, fuel lines in the manufacture of automobiles. This coupling consists of a tubular plug-in part (3) with a circumferential holding rib (4), a coupling housing (1) with a cylindrical receptacle cavity (6) for the plug-in part (3) and a separate holding element (2) with elastically expandable holding edges (5) that are radially directed into the receptacle cavity (6), with said holding edges engaging behind the holding rib (4) after the insertion of the plug-in part (3). A safety clip (9) with a second locking mechanism is situated in front of the plug-in opening (8) of the housing (1) in case the snap-in mechanism of the holding element (2) fails. The safety clip (9) consists of a frame (11) that is adapted to the end face (10) of the coupling housing (1) and can be engaged on corresponding projections (13) of the coupling housing (1) by means of two elastically expandable clips (12).

Abstract: The invention relates to a detachable rapid-action coupling device designed to receive a tubular plug-in element (3) having a circular retaining rib (4). Said device comprises a receiving housing (1) having a cylindrical receiving space (6) for introducing the plug-in element (3) and a separate retaining element (2) made of hard-elastic plastic material and having elastically expandable retaining edges (17) facing inwards in the shape of an arc of a circle, which edges serve to engage the retaining rib (4) from behind after the plug-in element (3) has been introduced. The retaining element (2) can be pushed in from the outside in an opening (11) of the housing wall (5) to release the plug-in element (3). The receiving space (6) consists of three stepped sections. The housing (1) is embodied as a two-part structure. In order to move the opening (11) for pushing in and releasing the retaining element (2) into a better position, if necessary, when only limited space is available.

Abstract: An indicator device for use with a detachable plug assembly includes a pair of spaced apart rings joined together by a pair of elongated connecting portions. The connecting portions extend in an axial direction between the rings. The connecting portions each have a outwardly curved bridging strip portion extending between a pair of flexible webs. The rings are mounted between the plug housing and the flange on the tubular insert member so that the bridging strips bulge outwardly to form a loop when the insert member is fully inserted into the plug to indicate that the insert member is properly locked within the plug. The indicator device may be connected either to the plug housing or to the insert member prior to assembly.

Abstract: A releasable connector for connecting tubing such as used in fuel lines has a display member to indicate when positive locking has occurred. The display member member is attached to the outside of the housing of the connector. The display member has a strap supporting a cover portion. The cover portion has a pair of resilient flanges which are insertable into an opening in the housing of the connector. The flanges extend into a chamber to engage an annular ring of a conventional male tube end. The annular portion of the tube end displaces the flanges of the display member after passing through a locking member contained in the housing of the connector. In this way, the tamper indicator indicates that the tube end has been positively received in the locking position.

Abstract: The present connector for liquid-conducting, plug-type connections consists of a hose nipple (2) formed on the coupling (1) and pluggable into the connecting end of a flexible plastic hose (3). The nipple has at its free end a conically widening, beveled plug edge (4) and an adjoining cylindrical shaft portion (5) with several truncated expansions (6) and (7), as well as an annular contact flange (8) at the end of the plug-in area (E) portion. The back side of the first truncated expansion portion (6) has a conical taper portion (9). Between the expansion portion (6) and the taper portion (9) an encircling groove (10) is provided, in which is embedded a gasket ring (11) circular in cross section. In order that the end of the hose or tube can be easily slipped over the nipple and the gasket ring, the surface (M1) of the first truncated expansion portion (6) outwardly at an angle .alpha. of about 45.degree.