Abstract: A pipe coupling comprising a socket having a plurality of locking balls capable of engaging a locking portion on a plug and connected to the plug with the locking balls in engagement with the locking portion. The socket includes a main cylinder having an end portion formed with an inlet to receive the plug and an outer cylinder located close to the end portion of the main cylinder and around the outer periphery thereof. The main cylinder and the outer cylinder define a gap having a tapered profile between them, and the locking balls are stored in the gap. The locking balls can project and recede from the inner periphery of the main cylinder. Further, the pipe coupling comprises a thrust cylinder slidable on the outer periphery of the main cylinder. When the locking balls engage the locking portion, the thrust cylinder prevents centrifugal movement of the locking balls.

Abstract: A fluid coupling includes various features. One feature is a disconnect tool that may expand a lock ring from engagement with a lock shoulder to permit the male half and female half to be separated. Another feature is to utilize geometry and structure whereby a leak would occur to indicate the condition of wear within the coupling while the coupling halves remain mechanically coupled. A further feature is to provide connection verification structure to assure that a complete connection of the male and female halves has been made. A still further feature is to provide an anti-rotational sleeve which would selectively prevent and permit relative rotation between the male half and the female half.

Abstract: A quick safety connection for the removable joining of pipes, comprising a male connector and a female element adapted to fit and to be locked inside one another. A controlled locking mechanism is adapted to immobilized the male connector axially in a position of connection, while at least one retention member is provided to immobilize the male connector, after release of the connector by said locking mechanism, in an intermediate position of discharge of the pipe connection. The locking mechanism and retention member are controlled by a sleeve sliding around the female element. Vents and safety stops are provided to limit the movement of the sleeve under the effect of the pressure prevailing due to the discharge of the connection in the intermediate position between the female element and the sleeve.

Abstract: The invention relates to a coupling for hoses for media under pressure. The coupling includes a female part and a nipple. The nipple fits into the female part. A lock ball is provided for locking the nipple in the connected position with the female part. A locking sleeve is spring-loaded toward a locking position in which it holds the ball lock in the engagement position. The locking sleeve can be moved, counter to the spring-loading, to a release position in which the ball lock is released. The movement of the locking sleeve to the release position includes both rotation about the longitudinal axis of the coupling and axial displacement parallel to this axis.

Abstract: A pipe coupling for a female screw to be connected to a female screw port formed in a fluid device, comprising a cylindrical main body. The main body includes a plurality of arm members having a male crew portion at a distal end to be connected to the female screw port. Also, the main body comprises a sliding member that slides from a close to an open position with respect to the arms members. The main body is provided with a lock member for stopping the movement of the sliding member.

Abstract: A disconnect coupling for high pressure fluidic lines has an improved retaining mechanism for retaining the male portion within the female portion. The mechanism comprises a plurality of retaining lugs that are disposed within the female portion of the coupling. The retaining lugs are arranged so as to mate with a retaining groove formed into the outer surface of the male portion such that the bearing surfaces contact each other over a much-increased surface area.

Abstract: A vacuum-cleaner wand has an inner tube formed with an axially extending row of radially outwardly open recesses, an outer tube, and a latch base part fixed to the outer tube and formed with an elastically deformable web carrying a latching block displaceable radially into and out of the recesses. The base part also is formed with a pair of radially outwardly projecting guide walls forming radially inwardly directed guide edges. A movable latch part fitting over the base part is formed with a pair of radially inwardly projecting guide walls forming radially outwardly directed guide edges sliding on the guide edges of the base part for sliding between axially offset latched and unlatched positions. A radially inwardly projecting actuating bump formed in the movable part bears in the latched position radially inward on the block and holds the block in the inner position.

Abstract: The present invention discloses a knob-like collar device adapted to fit securely around the lateral displacement locking sleeve of a quick-release hose coupler. The device promotes one-hand operation of the coupler by providing purchase and grip for the thumb of the hand holding the coupler thereby facilitating the lateral displacement of the locking sleeve. The device is particularly useful when the coupler is very cold, a condition that commonly results from the high velocity passage of fluids or gasses through the coupler. The device also absorbs mechanical shock resulting from the accidental dropping of the coupler on a hard surface, thereby protecting the coupler from damage.

Abstract: A quick connect coupling for transmitting fluids includes a tubular housing and spreadable locking elements fixed on the housing for connection to a correspondingly formed connector. A sealing piston is slidable centrally in the housing for engagement with the connector and surrounded by an axially movable sliding sleeve. The sliding sleeve retains the locking elements in the locking position in the coupled position of the quick connect coupling.

Abstract: An easy to use, and reuse, separation connector is disclosed that comprises a first component having a plurality of leaf elements with protrusions, and a second component having a recess for receiving the leaf element protrusions. The protrusions of the leaf elements are secured within the recess by a tensioned band, or in an alternative embodiment, by an expansion band; the protrusions and recess are formed so as to provide an efficient and effective load and torque bearing surface that requires minimal tension on the tensioned band, or minimal compression on the expansion band. A shearing structure is also presented that minimizes translation of the leaf elements with respect to the receiving surface. When the band is released, springs or other means urge the leaves away from the mating surface, thereby allowing for the separation of the connected items. Preferably, the leaves are hinged, allowing for ease of coupling and decoupling to the mating surface.

Abstract: A plug portion 23 which engages to a socket 13, to which a liquid transport hose and a gas transport hose 7 are connected, is provided to a plug 12 which closes an aperture portion which is formed in a container. A liquid conduit 26 on the side of the plug 12 which is communicated to a liquid conduit 56 on the side of the socket 13 is formed on the inner side of the plug portion 23, while a gas conduit 41 on the side of the plug 12 which is communicated to gas conduits 52 and 63 on the socket side is formed on the outer side of the plug portion 23.

Abstract: A novel hose coupling for a liquid transfer system is provided. The coupling comprises a connector portion adapted to lockingly engage an adapter on a receptacle, such as a gas tank, and a handle portion. The handle is proximate to a releasing member which is oriented for manipulation by a hand holding the handle. The releasing member is moveable between a first engaged position in which the coupling is lockingly engaged with a receptacle adapter and a second disengaged position in which the coupling is released from locking engagement with the adapter. Accordingly, the coupling is disengaged from locking engagement with the adapter when the release member is displaced from the engaged position to the disengaged position. The coupling allows one-handed, ambidextrous use, providing a coupling operator with greater maneouverability which is advantageous particularly in instances where receptacle access is limited.

Abstract: The present invention relates to safety joints which permit separation of a downhole assembly at the location of the joint. The invention provides a safety joint characterized by the provision of auxiliary interconnecting means on a body (2) for interconnecting said body (2) to an auxiliary shaft after removal of a main shaft (3) from said body (2). Axial loading between the auxiliary shaft and said body (2) may be thereby transferred. Furthermore, torque may also be transferred between the auxiliary shaft and said body (2) in a direction opposite to that in which torque may be transferred from the main shaft (3) to said body (2). Thus, the present invention allows a length of downhole assembly located above said body (2) to be removed from a wellbore by rotation of said length of assembly in a first direction and then allows rotation of said body (2) in the same first direction by means of the auxiliary shaft in an attempt to remove a length of assembly stuck in the wellbore downhole of said body (2).

Abstract: An easy to use, and reuse, separation connector is disclosed that comprises a first component having a plurality of leaf elements with protrusions, and a second component having a recess for receiving the leaf element protrusions. The protrusions of the leaf elements are secured within the recess by a tensioned band; the protrusions and recess are formed so as to provide an efficient and effective load and torque bearing surface that requires minimal tension on the tensioned band. In a preferred embodiment, the tensioned band is detensioned by a thermal device that melts the band. When the band is melted, springs or other devices urge the leaves away from the mating surface, thereby allowing for the separation of the connected items.

Abstract: An adapter for a driver of a rotary tool, and including a pin and slot combination effective between an adapter body and an adapter collar which is slidable on the body. A pin and slot combination guides the sliding and a spring urges the collar with its pin and slot combination into a tool locking position. The slot in the combination is at an acute angle relative to the longitudinal axis of the adapter, and thus it secures the working tool relative to the body and does so by means of a rotary action for the collar which actually also induces the axial movement of the collar for the securing of the tool. The tool has a conical surface oriented opposite to that of a collar conical surface which bears upon the balls for the tool tightening action mentioned. The method of securing the tool is included in the aforementioned.

Abstract: A pipe coupling comprises a cylindrical plug having a peripheral groove formed in an outer peripheral surface, and a socket to be connected to the plug. The socket includes a main body having a receiving hole formed in an end portion thereof for receiving the plug, a sleeve having a front end portion axially slidably inserted in the receiving hole, a base portion located outside the receiving hole, an axial through hole for receiving the plug such that it can slide therein, and a plurality of radial through holes formed therein at circumferentially regular intervals and radially inwardly tapered, and a plurality of lock members received in the radial through holes, part of each of the lock members being able to project into the axial through hole.

Abstract: A safety collar and tendon assembly (24) for joining a female connector (22) and a male connector (20), comprising a collar member (26) having at least one tab (30, 32) with a radially inwardly projecting leg (35) which extends into an annular recess (39) between the male connection (20) and the female connection (22) to prevent axial movement of the collar member (26) along the connection assembly (16) and thereby maintain engagement of collar (26) around a non-circular (hexagonal) surface (47) of the female connector (22). Also part of the safety collar and tendon assembly (24) is a tendon or length of wire (40) which is secured at one end to collar (26) and at its other end is either secured to a similar collar on an adjacent threaded connection or to a fixed structure. Unthreading of the connection assembly (16) is prevented by the tendon (40), which prevents rotation of collar (26).

Abstract: The invention concerns a quick connector for the connection of hoses and pipe conduits for pressurized gases and liquids having a sleeve (1) which is connectable to a first conduit and a plug (2) for accepting a second conduit and having a locking device disposed on the sleeve comprising two locking pins (5) guided in slots (4) fashioned in the elastic material sleeve body (3) which snap into the plug groove (7) under the force of a pressure spring (6) during locking and, together with a bushing (8) surrounding the sleeve body (3) and borne thereon in an axially displaceable fashion, once more release the plug (2) through cooperation with both locking pins (5). An adapter (13), made from harder material, is disposed in the sleeve body and forms a stop and abutment for the locking pins (5).

Abstract: A coupling assembly for connecting a handle to an instrument extending along a longitudinal axis has a coupler, which releasably receives the handle and has an outer sleeve and a snap-in sleeve formed with a snap-in element. The handle has a recess receiving the snap-in element which is guided along a conical recess formed in the outer sleeve to move to a locking position wherein the handle and the coupler are displaceably fixed relative each other. The outer sleeve is rotatable about the longitudinal axis and its recess has a periphery formed with an inner surface enabling the snap-in element to move radially from the locking position during rotation so as the handle can be axially withdrawn from the coupler.

Abstract: The present invention provides a pipe coupling socket having a main body containing a plurality of lock balls for locking a plug accepted in the main body. The main body has a projecting lock portion which projects from the outer circumferential surface and has a top surface in which a groove is formed.

Abstract: A high pressure coupling includes a tubular piston having a longitudinal axis and first and second opposite ends, with the tubular piston being moveable between a disengaged position and a pressurized position. A coupling mechanism surrounds the first end of the tubular piston, with the coupling mechanism including an un-coupled configuration and a coupled configuration. A sleeve is engaged with the coupling mechanism for controlling operation of the coupling mechanism. The sleeve is moveable between a first position at which the coupling mechanism is in the un-coupled configuration and a second position at which the coupling mechanism is in the coupled configuration. A detent mechanism is provided which is actuatable by the tubular piston.

Abstract: A fluid coupling includes a first member for supplying fluid, a second member for receiving the fluid supplied by said first member, and a securing device for securing the first member in fluid communication with the second member. The securing device includes a locking element movable between a first position at which the first and second members can be separated and a second position at which the first member is secured to the second member. An actuator is provided for moving the locking element between the first and second positions. The actuator includes a main body secured to the first member and an actuator arm movably connected to the main body for manipulating the locking element. A guiding surface is provided on the actuator body for guiding the locking element between the first and second positions.

Abstract: A coupling disposed in a pneumatic hammer and for removably connecting a spray can to a plug body for connecting a fluid conduit is provided. The coupling is provided with a socket body having a first end portion, a second end portion and an axial hole open in the first and second end portions, a locking mechanism provided in the first end portion end of the socket body and releasably locking and engaging with the plug body, and a mounting member attached to the second end portion of the socket body in such a manner as to freely slide to an axial direction. The mounting member attaches the socket body to the spray can in a removable manner.

Abstract: A quick release for a vacuum cleaner having a nozzle and a wand for providing suction to the nozzle comprises a tubular connector to be received by the nozzle. A resilient latch on the wand is received in an opening in the tubular connector to secure releasably the wand to the tubular connector. A biased sleeve is movable axially along the tubular connector. The sleeve has a cam surface to urge the latch inwardly to an extent to clear the opening against the bias when the sleeve is moved axially to permit the withdrawal of the wand from the tubular connector.

Abstract: A first quick-coupling part can be brought into interaction with a second quick-coupling part via an interaction portion. The quick-coupling parts are held together with locking members. The interaction portion is designed with a surface layer which brings about an essentially crack-free flexibility for the locking members in spite of high actuating forces. One or more underlying layer(s) has (have) greater hardness than the surface layer, and the combination of said layers gives the necessary resistance against high media pressure.

Abstract: A tube coupling for use in a vacuum cleaner includes a first tubular part and a second tubular part, which parts can be coupled to and separated from one another. The first part includes a locking member which is movable from a first position, in which the locking member locks the second part relative to the first part, to a second position, in which the locking member releases the second part. The first part further comprises a slide which cooperates with the locking member, the locking member being moved to the second position if the slide is moved parallel to a longitudinal axis of the first part in a direction away from the second part. In this way, a force exerted on the slide to unlock the parts and a force exerted on the first part to separate the parts from one another are oriented in the same direction, as a result of which the tube coupling is very easy to handle. In a special embodiment the slide of the tube coupling is a grip held by the user when the parts are to be uncoupled.

Abstract: The present invention is a tool free quick change spark plug mechanism. It includes a head insert, a spark plug and a locking housing. The head insert has a threaded base to be inserted into a spark plug port of an internal combustion engine. It is generally cylindrical and hollow, and has either a locking groove or an extended locking mechanism on its outside wall above the threaded base. The plug is generally cylindrical and elongated with an electrode for sparking and a terminal for a wire attachment, and has a seal with a greater diameter than the lower end of the plug for seating within the head insert. The locking housing is hollow and cylindrical to fit over the spark plug and head insert, and has on its inside wall, the other of the locking groove and extended locking mechanism.

Abstract: A telescoping vacuum-cleaner pipe assembly has a guide sleeve on an outer pipe which cooperates with an actuating sleeve displaceable against the force of a ring spring on the guide sleeve to lock and unlock a detent engageable in recesses on an inner pipe. The ring spring is held between the actuating sleeve and an annular cap locking into the actuating sleeve.

Abstract: The invention concerns a rapid connection coupling (10) for transferring gases and/or liquid, in particular for coolant filling operations in air conditioning systems. The coupling in question comprises the following elements: a tubular housing (11), an outer sliding sleeve (18) which can slide relative to the housing (11); a number of radially expanding collet chuck elements (15) mounted on the housing (11) and provided with an engaging contour (17) which facilitates connection to a matching connection nipple (30); and a sealing piston (22) capable of sliding centrally inside the housing (11), the said sealing piston being brought into contact with the connecting nipple (30).

Abstract: A coupling utilizes a male member having an internal poppet valve yieldingly urged to a closed position and an external ball retention sleeve yieldingly urged toward its connector end engageable with a female member. The female member has an internal poppet valve yieldingly urged to a closed position and a forward connector end wall section having a plurality of apertures in which are positioned balls for engaging an annular groove of the male member. The female member includes a retainer for preventing the balls from falling outwardly from the apertures.

Abstract: On a sleeve for a gardening tool, for example a quick coupling (12), surface parts of a flexible, soft and grip-promoting material (24) are provided in differing individual sections. These are applied in a two-component injection molding method and may also comprise special bump rims (27). By a differing color design and alternating exposure of the surface of the two composite materials of base body (17) and additional element (24) lettering, marking or configuring the surface may be achieved.

Abstract: A filter system providing an improved connection device providing quicker and easier removal and installation of filters and increased reliability of the filters due to the improved connection device.

Abstract: A quick-release coupling includes a male part and a female part. The female part has a valve stem attached to an inner tubular body so as to define a number of flow channels, and an outer body that houses a pair of sliders. The female part also has an intermediate sleeve that slides inside the outer body and is attached to the inner tubular body. The outer body has an inner stop shoulder which defines an extended position of the sleeve. A sealing device, movable by the pressure of a fluid present in the female part, is present at the rear between the sleeve and the outer body. The sleeve is stressed from the rear by a pressure spring. The outer body is locked to and released from the sleeve.

Abstract: An improved release device for safety equipment has a housing including a body, a cover attached thereto with a resilient flexible membrane inserted therebetween, and an attachment portion releasably secured to the cover. The cover has shoulders protruding radial inward within the bore. The release device has a cap rigidly mounted to the membrane and an annular gap exits between the shoulders and the cap. The attachment portion has elastically flexible legs with enlarged ends that extend into the bore. The ends deflect inwardly when engaged by the shoulders and then spring outwardly and are retained in a recess below the gap because the enlarged ends are wider than the gap. When the pressure forces the membrane to move away from the bore, the cap moves with it to enlarge the gap and allow the legs of the attachment portion to escape from the cover, whereby the safety equipment is released when the water pressure is sufficiently high. The device is testable and may be reset and reused at will.

Abstract: Disclosed is a method and structure for improving alignment of a plasma arc with an axial centerline of a plasma arc torch. At least one of an electrode and nozzle are mounted in respective bores of a cathode block and torch body using a radial spring element. By concentrically machining the bores along an axial centerline of the torch and centering the consumable components within the bores using the spring elements, an insert disposed in a tip of the electrode is axially aligned with an orifice formed in a tip of the nozzle. Asymmetric wear of the nozzle orifice due to a skewed arc path is markedly reduced or eliminated. The torch may be employed in computer controlled cutting and marking systems to produce components or workpieces with reduced dimensional and angular errors.

Abstract: A pair of quick disconnect female fittings each have a first end adapted to be connected to a first pipe, and a second end adapted to engage a quick disconnect male fitting attached to a second pipe. Each of the quick disconnect female fittings includes a sleeve adapted to cause the quick disconnect male fitting to disconnect from the quick disconnect female fitting when the sleeve is urged toward the first end. A pair of elongated members are disposed generally parallel to the quick disconnect female fittings. A plate is configured to slide along the elongated members. The plate is configured such that when urged toward the first ends of the quick disconnect female fittings along the elongated members, the plate will urge the sleeves toward the first ends. A first spring is disposed on each of the elongated members and is configured to urge the plate toward the first ends of the quick disconnect female fittings. Each of the elongated members includes a recess therein.

Abstract: The coupler comprises a male part (10) and a female part (1, 3) having a closure valve (5) at its upstream end, which valve is opened when the female and male parts are coupled together, and is closed during uncoupling thereof. The male part (10) has an outside surface provided with a collar (14). A latch (7) is provided in the female part to move in a radial direction and it includes a bore extending in the axial direction of the female part and through which the male part passes. On the surface of its bore, the latch includes two half-collars (11, 12) at least one of which is formed by two conical surfaces that are essentially sickle-shaped. The surface facing upstream of the half-collar (12) is situated upstream from the collar (14) and is suitable for fitting closely over at least 180.degree. of the collar (14) of the male part when the male part is in a fully coupled position.

Abstract: The invention relates to the sector of fast-action couplings for domestic irrigation system. The fixed central body has mounted on the outside, integral therewith, a; fastening element on the outside of which an external body (5) is able to slide longitudinally. The fastening element has a plurality of lugs each of which is provide with tooth and a protuberance which can be inserted into the corresponding slits and formed in the thickness of the external body. An extension spring is arranged between the external body and the fasting element and a ring made of elastic material or a plurality of teeth act as elements for gripping the male connector.

Abstract: A connector for providing a fluid tight connection to a fluid port having internal threads. The connector includes an exterior sleeve having a split collet retractably mounted therein. The split collet defines an axial bore and includes a distal end portion extending axially outward from an end of the sleeve and adapted for lockingly engaging the threads of the fluid port. A sealing structure is mounted on the distal portion of the collet for providing a fluid tight seal with an end portion of the fluid port. The connector further includes an expansion pin mounted within the axial bore of the split collet adjacent to the distal end portion of the split collet. The expansion pin cooperates with the split collet to move the split collet radially inward and outward. A cross member connects the expansion pin to the exterior sleeve for preventing relative axial movement between the exterior sleeve and the expansion pin.

Abstract: A quick disconnect asexual locking hose coupling is provided having a spring biased coaxial sleeve with a locking projection and a sealing means having an internal gland for use with universal type hose couplings typically found in pneumatic service applications. The locking hose coupling provides enhanced safety, better sealing and ease of use over typical universal hose couplings while retaining the advantages of robustness, versatility, convenience and compatibility with the most numerous type of coupling in current use.

Abstract: A connector for a tube and a port construction for sealingly and securely receiving the connector. The connector has a male luer comprising a locking hub and a cylindrical tubing port. The cylindrical tubing port receives the free end of the tube. A second piece is provided that envelops the male luer, comprising a elongate cylindrical housing having a interior surface. The male luer and the tube are snugly inserted within the interior surface of the second piece to form a unitary connector.The port receives the connector and has a housing having a first end and a second end and an open interior region defining first and second chambers and a housing axis. The first and second chambers are disposed within the first and second ends of the housing, respectively. A locking knob is movably mounted on the first end of the port apparatus and movable along the housing axis relative to the first end between first and second positions.

Abstract: A quick release for a vacuum cleaner having a nozzle and a wand for providing suction to the nozzle comprises a tubular connector to be received by the nozzle. A resilient latch on the wand is received in an opening in the tubular connector to secure releasably the wand to the tubular connector. A biased sleeve is movable axially along the tubular connector. The sleeve has a cam surface to urge the latch inwardly to an extent to clear the opening against the bias when the sleeve is moved axially to permit the withdrawal of the wand from the tubular connector.

Abstract: A rapid releasable coupling for the tang of a work tool to a percussion apparatus. A tip of cylindrical shape extends the body of a percussion apparatus towards the front. Three longitudinal grooves are spaced an equal angle apart in the tip. A roller can move in each groove. Each roller has a pin with ends adapted to roll or slide on the edge of the groove. A ring threaded onto the tip and moveable longitudinally is returned rearward and against the rollers by a spring. The ring has section in the shape of a circular arc that partially surrounds the rollers. Displacement of the ring toward the front is by another ring which surrounds the assembly and which has an annular projection on its inner wall for holding the spring. A screw connection between the up and the other ring so that the other ring is moved longitudinally by being rotated.

Abstract: A coupling apparatus is constituted by a pair of couplers. The pair of couplers have substantially the same structure and are complementary to each other. A cylindrical body of each coupler has at least a pair of locking pieces projecting in an axial direction and locking pieces engageable with the locking pieces. When the pair of couplers are abutted against each other in the axial direction and the locking pieces of one coupler are engaged with the locking pieces of the other coupler, the pair of couplers are coupled to each other.

Abstract: A filter assembly has a housing for supporting a filter element, a first quick connect sealing valve operatively connected to an inlet passageway in the housing, and a second quick connect sealing valve operatively connected to an outlet passageway in the housing.

Abstract: A coupling for coupling together hoses or pipes for a pressure medium is described. The coupling has a coupling sleeve and a nipple insertable in the sleeve. The coupling sleeve has a valve device for opening the flow-through of the pressure medium as the nipple is inserted to its engagement position and consists of a sleeve-shaped front part and a sleeve shaped rear part. The front part is rotatable but axially essentially non-displaceable and joined to the rear part by means of a resilient lock ring. The valve device also has a valve body in the form of a sleeve, a valve seat for cooperation with the valve body and a blocking sleeve for cooperation with the nipple upon insertion thereof.

Abstract: A telescoping support pole suitable for supporting tarpaulins or camouflage netting is described. The pole is made up of a plurality of tubes that nest within one another for storage. To deploy the pole, the tubes are extended in a telescoping fashion. Ball locks are provided for maintaining the extended poles in desired longitudinal relationships. The ball locks are activated by spring loaded collars that force balls into circumferential grooves formed in the outside surfaces of the inner telescoping tubes. The collars may be manually operated to release the ball lock mechanism to permit the pole length to be adjusted or to permit the tubes to be nested within one another for storage. Pivoting fixtures suitable for use at the upper end of the support pole are also described.

Abstract: A quick-connect fitting for transferring gaseous and/or liquid media, in particular for filling gas cylinders, has a housing (11) with an inlet (12), and outlet (13) for the medium to be transferred and a quick-connect device arranged in the area of the outlet (13) with clamping tongs (15, 15') that can be interlocked with an external complementary gripping profile, a hollow sealing piston (16, 16') that can glide in the housing (11) and an actuating device (17) for applying the clamping tongs (15, 15') which is linked to the sealing piston (16, 16') in a relatively movable manner by means of a sliding sleeve (18, 18').At least one bolt (20) is provided for linking the sliding sleeve (18, 18') to the sealing piston (16, 16') and the actuating device has an elongated member (17) mounted on the housing (11) with a disk cam (36) that engages the sliding sleeve (18, 18') to make it move.

Abstract: A compressed air safety gun for use underwater, having a handle and an elongate barrel extending therefrom, the handle including a valve therein being operable between open and closed position, by a trigger on the handle. A substantially flexible pneumatic hose connects at opposite ends between the handle and a pressurized air supply source for directing pressurized air flow to the valve in the handle, wherein operation of the trigger to open valve serves to direct the flow of pressurized air through the gun barrel and out from a distal end thereof. A coupling connectable to the distal end of the barrel is structured and disposed for attachment of various tools thereto, such as a nozzle for directing the flow of air from the barrel end.

Abstract: A quick connect coupling is disclosed of the type adapted for connection to a nipple having a radially inwardly extending recess formed at a position spaced from a free end of the nipple. The quick connect coupling includes a tubular and cylindrical body open at each end wherein one end of the body is dimensioned to slidably extend over the free end of the nipple to a connected position. The body includes a plurality of circumferentially spaced openings which are in alignment with the nipple recess when the coupling is moved to its connected position. A spherical retainer is disposed in each opening and is radially movable between a locked and an unlocked position. A tubular and cylindrical locking ring normally urges the retainers to their locked position. Each housing opening has at least one side wall which extends substantially perpendicular from a predetermined diameter of the body. This enables the body to be molded from a two-part mold without the necessity of insert molding.