Abstract: A two-piece connector includes a collar having an aperture in its relatively thick end-wall which bears an internal annular groove. The skirt of the collar is adapted to be slipped over the end of a length of tubing and contains tines to graspingly engage the outer surface of the tubing. The barb portion of the connector is adapted to fit through the aperture in the end-wall to frictionally engage the lumen of the tubing. An interrupted flange at the upper portion of the barb is adapted to twistably engage the internal annular groove in the end-wall to securely lock the barb to the collar.

Abstract: A twist lock system for a dispensing container which includes a locking ring for a pressurized container, a dispensing gun having a combination twist lock and valve actuating system including two pairs of radially and circumferentially spaced locking lugs cooperating with slots and the locking ring, an axially movable valve stem positioned in a body secured to the container end and a valve capturing and actuating surface formed on the dispenser gun, with the components constructed and arranged so that the valve cannot be actuated unless the container and gun are properly positioned.

Abstract: A connector system comprises a socket having at least one locking pin and a plug comprising a plug body and a locking ring having at least one slot along which the pin can move and an elastic member disposed at one end of the slot defining a first area in which the slot tapers and a second area in which the pin is selectively lodged. The aforementioned one end of the slot terminates at an abutment. The second area is wider than the pin and the first area so that the elastic member is retracted elastically when the pin enters the first area and returns to its initial position without being compressed by the pin when the pin is in the second area near the abutment. The elastic member of the connector system is a cantilever beam having a notch at its free end.

Abstract: A pipe coupling device wherein the connection between pipe members is made by rotating one member relative to the other member so that a plurality of radially extending surfaces of one member face corresponding radially extending surfaces of the other member. The facing surfaces can be flat and planar. The plurality of facing flat surfaces initially face each other in an interlocking arrangement which is not tight. A single threaded adapter is then tightened to draw the plurality of facing surfaces of one member tightly against the corresponding facing surfaces of the other member.

Abstract: An apparatus for providing bleed air to exit an air outlet fitting where an air hose is connected to a turbine housing to cool the turbine and outlet fitting. The bleed air is directed through longitudinal channels outside the air hose and to an air diffuser collar where it is deflected to exit the apparatus radially.

Abstract: A fluid coupling includes first and second connectable fittings. Each of the fittings include a body, an annular seat, and a fluid channel extending through the body and seat thereof. The first fitting includes a pair of latch bosses, and the second fitting includes a pair of latch arms, with the second fitting being rotatable relative to the first fitting to a latched position wherein the latch arms engage the latch bosses for maintaining the first seat adjacent to the second seat for allowing fluid to flow between the first and second channels. The fittings are also rotatable to a disengaged position wherein the latch arms and pins are disengaged to allow the first and second seats to be separated.

Abstract: A pipe connecting device for detachably connecting two tubes into a support to be used in a floor lamp, the pipe connecting device comprising two bushes respectively fastened in two tubes at the connecting ends thereof in a flush manner, the bushes each having a curved locating groove extending from a longitudinal guide groove thereof, and a pipe connector for connecting the two bushes together, said pipe connector having a circular outward flange at the middle and two unitary pins projecting from an outer wall surface thereof at right angles, wherein the two tubes can be detached from each other when the guide groove on either bush is aligned with each other, or firmly connected together when said two unitary pins are respectively engaged into the locating grooves on the two bushes.

Abstract: A coupling and methods for interconnecting the ends of spirally ribbed pipe are disclosed. Grooves are formed transversely across two or more ribs of the pipe and a coupling ring is secured to the end of the pipe by lugs or cleats which rotatably engage with the grooves. Contact surfaces of the lugs are angled relative to the grooves to center the coupling ring axially of the pipe. The angular relationship of the grooves and contact surfaces of the lugs draw the ring into abutting contact with the end of the pipe as they rotatably engage the grooves.

Abstract: An arrangement for attaching a rigid vacuum conduit to a nozzle provides high rotational freedom between the nozzle and the rigid conduit while retaining a reasonable degree of airtightness between the conduit and the nozzle. In one form of the invention, the rigid vacuum conduit includes a coupling section of generally cylindrical form adapted to be received into an inlet opening of the nozzle. The coupling section includes a plurality of spaced grooves, each circumscribing the coupling section. The presence of the grooves reduces the frictional loading between the vacuum conduit and the inlet opening while providing a trap for dirt particles that would otherwise jam the vacuum conduit into fixed position in the nozzle. In a further version of the invention, the rigid vacuum conduit comprises metallic material. To reduce frictional loading between such metallic material and the inlet opening of the nozzle, an annular band of low friction material encircles a coupling section of the vacuum conduit.

Abstract: An arrangement for attaching a rigid vacuum conduit to a nozzle provides high rotational freedom between the nozzle and the rigid conduit while retaining a reasonable degree of airtightness between the conduit and the nozzle. In one form of the invention, the rigid vacuum conduit includes a coupling section of generally cylindrical form adapted to be received into an inlet opening of the nozzle. The coupling section includes a plurality of spaced grooves, each circumscribing the coupling section. The presence of the grooves reduces the frictional loading between the vacuum conduit and the inlet opening while providing a trap for dirt particles that would otherwise jam the vacuum conduit into fixed position in the nozzle. In a further version of the invention, the rigid vacuum conduit comprises metallic material. To reduce frictional loading between such metallic material and the inlet opening of the nozzle, an annular band of low friction material encircles a coupling section of the vacuum conduit.

Abstract: A junction box (1) adapted to have releasably connected fittings (12,14,15,16,17) of variable inlet diameters and connections. The fitings (12,14,15,16,17) have castellations (18) and an abutment face (21) defining an annular recess (20). The castellations (18) fit into cutouts (22) in the port (3) whereby when said fitting (12) is rotated the castellations have tightening means (38) which force against the castellations (33) of the port (3) forming a seal between sealing faces (24) of the port (3) and abutment face (21) of the fitting (12) to prevent lateral movement and whereby the projection (25) in the port (3) rides up over the ramp surface (19) to lock into the locking recess (27) to prevent rotational movement. The ramp surface being suitably shaped so as to allow for its defamation by manual means to allow for unlocking of the connector.

Abstract: A drilling device is made up of a hollow cylindrical retainer and an annular drill bit. One of the retainer and drill bit has recesses for receiving projections on the other so that the two parts can be detachably connected together. Each recess has a first and a second axially extending section with the second section extending circumferentially from the opposite axially extending sides of the first section. Accordingly, the second section forms stop shoulders extending transversely of the axial direction for contacting circumferentially extending edges of the projections. As a result, the retainer can transmit rotary motion to the drill bit in both rotational directions while maintaining the two parts in connected engagement.

Abstract: A mixer drive unit includes a motor provided with a housing, and a sleeve-like shroud projects outwardly to be positionable in abutting engagement with a top wall of a tank in surrounding relationship to the projecting end of a mixing shaft. The drive unit has a quick-connect drive coupling disposed within the shroud. The coupling includes a drive plate which has a pair of driving flanges projecting downwardly in cantilevered relationship, which driving flanges are spaced radially outwardly from and on substantially diametrically opposite sides of a driving axis. The driving flanges are positionable substantially on diametrically opposite sides of the mixing shaft when the latter is inserted into a pilot opening in the drive plate. The driving flanges define thereon, in the rotational direction, leading drive faces which abut projecting ends of a drive pin secured to the end of the mixing shaft.

Abstract: A joint having no external protrusions consisting of the mating cylindrical nds of two tubular members joined by interlocking cogs on the male and female ends of the tubular members, and a pair of facing ramp surfaced rings disposed in the joint with one ring integral with or affixed immovably to the male end of one tubular member, the other ring rotatably disposed upon that same member within the joint so that when the movable ring is rotated by means of a spanner wrench or equivalent tool relative to the stationary ring, the juxtaposed ramp surfaces ride upon each other causing the movable ring to move axially relative to but in continuing contact with the stationary ring until contact with the female end of the other tubular member in the joint is established and the joint is thereby made rigid.

Abstract: A fitting for conducting fluid into or out of a pliant bag has inner and outer blocks releasably fastened together in immediate contact with the bag wall between them and with a perforate portion of the bag wall between them. Communicating flow passages in both blocks respectively are open into the bag through the perforate portion and to the fluid pressure or evacuating device.

Abstract: A connection assembly is particularly useful for positively connecting a flexible hose member with an inlet plug for a suction source while being adapted for subsequent disconnection without requiring any specialized tools. In connecting operation, an integral extension portion of a flexible hose member is telescopically inserted into an inlet plug to a predetermined longitudinal stopping point therein, and then rotated so as to cause engagement of projections formed on the extension portion and projection-receiving holes formed in the inlet plug. Such engagement rotatably and longitudinally secures the flexible hose relative the inlet plug. Slots are formed in the inlet plug for guiding the hose member projections during longitidinal movement of the hose member. The hose member may be selectively withdrawn by reverse rotation of the hose extension portion and longitudinal removal thereof from the inlet plug.

Abstract: Quick-action coupling for the elements of an extension tube used in ocean oil well drilling, comprising a female tubular element (3) and a male tubular element (4) of the rising column. When fitted into another, these form between them an annular groove (10) open in its upper part and limited in its lower part by an axial bearing surface made on the periphery of one of the tubular elements (3, 4), this having a dimension sufficient to allow the locking collar (13) to be introduced.

Abstract: A coupling for a fire hydrant-fire hose connection includes a first coupling member attached to the fire hydrant and a second coupling member attached to the fire hose wherein both the first and second coupling use a Storz connector. A butterfly valve is mounted within the first coupling to prevent access to the interior of the hydrant and a readily removable cover is placed over the first coupling member to shield the member when the hydrant is not in use.

Abstract: In a mechanism for releasably securing a longitudinal and flexible drainage element to a press-plate of a press which has a press-space for squeezing juice from fruits, and wherein the press-plate defines a passage, a securing device which includes a collar is provided which is received in the passage, and at least partially surrounds the drainage element near an end thereof. A securing sleeve is connected to the collar, and is formed with a shoulder, which abuts the press-plate on a side thereof facing the press-space. The drainage element is releasably secured by the securing device to the press-plate.

Abstract: An insulated pipe joint and a method for producing the joint in which first and second tubular portions are joined through an insulating member disposed in a gap between the first and second tubular members. The first tubular member has a flange portion at one end thereof while the second tubular member has a cap portion which accommodates the flange portion of the first tubular member with the gap being formed between the cap and flange portions. The insulating member disposed in the gap hermetically couples the first and second tubular members while electrically insulating them from one another.

Abstract: Tubular telescoping members have interrupted circumferential lugs which engage through relative axial movement followed by relative turning movement of the members. A releasable locking device prevents reverse relative turning movement of the members and comprises a plurality of threaded lock elements engaging internally threaded openings in an outer tubular member near its terminal shoulder. Each lock element is installed from the inside of the outer member, and has a portion accessible exteriorly of the outer member. Each lock element has a circular flange which projects beyond the terminal shoulder and into a detent provided on an external annular shoulder on the inner member. The circular flange is interrupted at one location by a flat face which is flush with the terminal shoulder when the lock element is turned one-half revolution.

Abstract: The present invention relates to a method and apparatus for retrieving wear bushings of various diameters and configurations with a single retrieving tool. The apparatus comprises an elongated member having first and second ends and having a generally cylindrical outer peripheral portion arranged parallel with a longitudinal axis of the elongated member. A plurality of adjustable members are adapted for engagement with a wear bushing. The plurality of adjustable members is selectively variable in quantity dependent upon the configuration of the wear bushing. Each of the adjustable members is arranged at the cylindrical outer peripheral portion of the elongated member and extends outwardly an adjustable distance along an extension of a radius of the cylindrical portion. In a preferred embodiment, the adjustable members comprise bolts which are adjustably secured in tapped holes arranged in the cylindrical portion of the elongated member.

Abstract: A fuel injection nozzle having a valve needle opening outward is proposed in which the valve needle is suspended in place in the base of a spring plate embodied in the form of a cup.

Abstract: A quick release, high torque coupling for interconnecting the bit and drive member in a mine roof drill has axial-locking and torque-transmitting structure integral with the drill members. A plug on the drive member is adapted to be releasably received within a mating socket in the bit and has an axial-locking segment on its outermost end complementally configured with respect to an acircular constriction in the socket to permit insertion of the axial-locking segment into the socket beyond the constriction. A torque transmitting segment on the plug cooperates with the constriction to limit relative rotation of the bit and drive member between oppositely directed torque-transmitting positions. In one of the torque-transmitting positions, the constriction and axial-locking segment are misaligned such that the plug is restrained against axial retraction from the socket.

Abstract: Penetration apparatus, for very high temperature applications in which a base plug (12) is inserted into an opening through a bulkhead (11), the base plug (12) having a head shape (14b) seating against the highest temperature surface (11a) of the bulkhead, which may be the skin of the nose cone or other part of a space vehicle intended for nondestructive atmospheric reentry. From the second side of the bulkhead (11b) at which the less severe environment is extant, a bayonet plug (14) is inserted into the base plug and engages an internal shoulder (19) therein upon 90.degree. rotation. The bayonet plug (14) has an integral flanged portion (14a) and a pair of ramping washers (16 and 17) are located between the flange (14a) and the second bulkhead surface (11b) with a spacing washer (15) as necessary.

Abstract: A mounting for an objective or projection-type lens has a male bayonet with beveled lugs engageable with a recess in a female bayonet plate and a one-piece spring is attached to the female plate and applies clamping force against the lugs of the male bayonet and also against the recessed shoulders of the female plate to provide for rapid changing of the lens and to maintain the lens in precise focal position.

Abstract: A dry break coupling for connecting a pair of fluid conduits includes first and second housings adapted for connection to the respective conduits. The first housing includes a piston supported for axial sliding movement between a first position wherein fluid flow through the first housing is blocked and a second position wherein fluid is free to flow through the first housing. The second housing includes a poppet supported for axial movement between a first position wherein fluid flow through the second housing is blocked and a second position wherein fluid is free to flow through the second housing. A handle is provided on the first housing for moving the piston between the first and second positions therefor and the poppet is engaged by the piston and moved to its second position in response to axial movement of the piston from the first to the second position therefor.

Abstract: A connector is provided for attachment of a syringe to a dispenser adapted to provide measured quantities of pressured gas to the syringe to displace the contents of the syringe in measured drops. The connector includes a flexible conduit attached at one end to the dispenser and attached at its opposite end to the filling end of a syringe while gripping the oppositely disposed projections, or "ears", of the syringe. There is an externally threaded tube at the syringe end of the flexible conduit, terminated by a stopper member which has a cylindrical end portion sized to fit loosely within the filling end of the syringe, which end portion is joined to a sealing flange. The sealing flange abuts the flat surface at the filling end of the syringe while the syringe "ears" are retained within oppositely disposed channels after a knurled ring on the externally threaded tubular member is rotated.

Abstract: Means to form a coupling between lengths of pipe, a male component having at least one annular rib on the outer surface of the male component and a female component having at least one annular groove corresponding in number to the number of annular ribs, one for each rib, to accommodate the at least one annular rib when the coupling is made to permit free rotation of the at least one annular rib in the at least annular groove when the coupling is made, and means to facilitate the entry of the rib into the groove, said means comprising at least one groove or slot corresponding in number to the number of annular ribs disposed at an angle between about 65.degree. and about 80.degree. to the longitudinal axis intersecting the at least one annular groove.

Abstract: A corrugated plastic drainage pipe in which drainage holes are formed through raised reinforcing formations on the corrugated pipe periphery and in which each of the reinforcing formations is integrally joined to adjacently disposed ridges or ribs of the corrugations and protrude from the valley therebetween to bridge the valley. Each reinforcing formation terminates in an end face which peripherally surrounds the drainage hole through the reinforcing formation and which is adapted to seat against surrounding soil or other material in a buried installation. Support feet formations are integrally formed with the corrugated pipe and are adapted to seat on a pipe-supporting surface to support the pipe.

Abstract: A connecting joint construction particularly suited for use on large diameter corrugated plastic pipe or tubing. The joint is comprised of a first main length of corrugated, generally cylindrical plastic pipe having one end portion provided with corrugations which, considered from the interior of the pipe, are somewhat smaller in height than the corrugations of the main body portion of the pipe. One of the smaller corrugations has at least one locking area therein defined between a stop member and a locking member and the smaller corrugations further include a plurality of sets of axially aligned grooves formed therein. A second main length of pipe is provided with a smooth walled end portion of a diameter less than the minimum internal diameter of the one end portion of the first pipe.