Abstract: A nozzle for injecting adhesive materials into cracks in concrete, mortared joints in brick or stone walls, in timber, or in similar materials, the nozzle having a body with a center channel for conducting the resin from a suitable pump into the cracked surface. The nozzle may be surface mounted or mounted in a drilled hole, and has a proximal end adapted for connection to a conventional coupling and a distal end surrounded by spaced lugs which facilitate insertion of the distal end into a hole and aid in retaining the nozzle therein. The spacing between the lugs and a plurality of grooves in the distal end communicating with the center channel minimize back pressure when surface mounted and resist back pressure when mounted in a hole, and provide an even diffusion of the resin into the void. A collar is normally provided near the distal end for partially or completely sealing the installation and for retaining an adhesive gel or putty cone which further seals the installation.

Abstract: An apparatus for stuffing a shirred tubular casing with a fluid material such as a sausage composition or pieces of ham comprising a stuffing horn having an aperture through which the fluid material is forced under pressure into the casing, a device located on the periphery of the stuffing horn and within the interior of the casing for smoothing and expanding the casing, the device comprising at least two disk-shaped planar bodies, at least one of which is rotatable in a plane parallel to and/or shiftable perpendicular to the longitudinal axis of the stuffing horn, the outer circumference of each planar body being smaller than the inner circumference of the tubular casing, whereby the projection of the cross-sectional surfaces of the planar bodies in the direction of the longitudinal axis upon rotating or shifting of the bodies results in a total surface having a greater circumference than the inner circumference of the tubular casing.

Abstract: A sealing member capable of elastic deformations provides a seal from the atmosphere between the mouth of a fillpipe and a liquid dispensing nozzle having vapor recovery conduit means internal to the receptive fillpipe, typically for use with gasoline.

Abstract: Disclosed are a method and an apparatus for filling bottles with liquid to a predetermined fill height. A suction pipe is positioned relative to the bottle so that the pipe extends through the mouth of the bottle and the lower edge of the pipe is disposed at a fixed distance from the upper edge of the bottle and at a level slightly above the level of the predetermined fill height. Liquid is delivered by gravity into the bottle until the liquid level reaches the lower edge of the slightly elevated suction pipe. Then the suction pipe is lowered to the predetermined fill height and the supply of liquid is interrupted. The space above the liquid level in the bottle is connected with the outer atmosphere and excess liquid is drawn off by suction through the suction pipe until the liquid level in the bottle has dropped to the lower edge of the suction pipe.

Abstract: The present invention relates to an arrangement and a device for making possible the supply of material to receptacles of the type intended to contain culture material. The receptacles are adapted to be arranged in a pile, one receptacle being placed on top of another receptacle. Each of the receptacles is provided with a bottom surface on which the material is deposited and a wall projecting upwardly from the bottom surface at right angles thereto. A plurality of piling projections extends along the wall of each of the receptacles in both upwards and downwards directions from the bottom surface, to a level above the upper peripheral edge of the wall, and to a level below that of the peripheral edge of the bottom surface, respectively, so as to make it possible for the receptacles to be arranged in a pile with the projections gripping the edges of upper and lower receptacles, respectively, and the receptacles receiving the intended culture material by means of a supply device.

Abstract: A milk pumping system used in vacuum milking installations for the purpose of withdrawing the milk that is in a vacuum milk receiver that is under constant vacuum, in cases wherein the milk must be pumped to a higher and more remote bulk tank that is under atmospheric pressure. For this purpose a milk releaser provided with a float is connected to the outlet of the vacuum milk receiver, and, when the milk releaser is filled up with milk, the float acts through a linkage to close a vacuum line connecting the first milk releaser to the vacuum milk receiver and establish a communication with the external atmosphere.

Abstract: A liquid soap dispensing system includes a closed soap container having a manually actuated dispensing pump carried therebeneath, the container being separated by a partition into a lower soap reservoir and an upper refill compartment, the latter adapted to enclose therein a removable refill cartridge and having a downwardly extending refill will with a plurality of keys upstanding from the bottom thereof. The cartridge has an outlet neck, the outer bottom surface of which has a like plurality of slots. The neck is closed by a pierceable membrane recessed therein and adapted to be received into the well so that a cartridge opening member pierces the membrane to accommodate free flow of liquid soap from the cartridge to the reservoir. The cartridge is entirely closed to define the liquid level in the reservoir at the bottom of the neck, and a drain hole in the reservoir wall above the bottom of the neck but below the tops of the keys prevents bootleg cartridges from being used in the soap dispenser.

Abstract: A nut assembly for use on an injection switch for a chromatograph has a nut surrounded by a moveable member which is disposed to travel co-linearly with respect to the axis of the nut. The moveable member is biased so that its upper end extends above the nut to engage the body of a sample syringe. Upon engagement with the sample syringe the moveable member moves downwardly against the bias means. The bias means then triggers the microswitch. Upon withdrawal of the needle of the sample syringe the moveable member returns to its original position.

Abstract: A device for the storage and dosed delivery of liquids, comprising a tank for containing a liquid, the tank having at least one opening for filling with the liquid and for discharge of the liquid from the tank, the tank being movably mounted in relation to a surrounding vessel so that the opening can be brought into a lower, operative, position, the liquid then passing from the tank into the surrounding vessel until the level of the liquid in said vessel reaches the level of said opening, the device then maintaining this liquid level.

Abstract: A device intended to feed a gaseous high-pressure fluid to a platform supported on a frame on which is located a pressure source, said device comprising a rotating joint unit including two fluid conduct members mounted in relative rotational relationship to said platform along the geometrical axis around which said platform is rotating, one of said members being connected to fittings usable for feeding said fluid and located on said platform. The other member is intended to feed said pressure source, the fluid conduct member which is intended, in the joint unit, to be connected to said pressure source is connected to the latter by a releasable connecting member. The coupling of said member depends on the fluid feeding required by the user or by said fitting usable for the fluid feeding and mounted on said platform.

Abstract: A removable seal for interconnecting passageways (10, 12) that move relative to each other. A liquid containing trough (28) is secured to one of the passageways, preferably the lower, and it has floated in it a curtain member (40) which moves in accordance with the level of liquid in the trough. This member (40) extends from the trough (28) and sealingly engages the other passageway when in an upper position but is spaced therefrom when in a lower position. This construction is especially suitable for sealing an ash hopper (12) to the lower end of a furnace (10).

Abstract: Either a pyrotechnic-powered needleless injector or (with spacer adapters) a conventional syringe is held in firmly abutting alignment with a dispensing orifice of a special storage vial. A flexible perforated seal forms a plug in the dispensing orifice, opens under liquid pressure to dispense medicament from vial to injector, and seals around the dispensing path between vial and injector against loss of the medicament. The liquid medicament is forced through the orifice under the action of a plunger forming one wall of the vial. The plunger in turn is driven by a micrometer-type screw whcih is calibrated in terms of dispensed volume.

Abstract: A guide used in teaching where to hit an object ball with a cue ball such that the object ball is deposited in a pocket of a pool table includes a marker which dispenses a small spot of a marker substance on the felt surface of the pool table. The marker substance leaves a spot on the felt which indicates the exact point at which the cue ball must be aimed in order to have the cue ball correctly strike the object ball to propel the object ball into the pocket. The marking substance is such that it will not leave a stain. The marker includes a reservoir for retaining a supply of the marking substance and an orifice which is capable of dispensing a small quantity of marking substance. The marker is supported above the surface of the felt by a support which has at least one surface capable of fitting next to the object ball and this surface is located precisely a radius distance away from the orifice on the marker.

Abstract: A coupling is provided for connecting a lance pipe to an oxygen supply line. The lance pipe supplies oxygen to molten metal in a furnace and is fed thereinto longitudinally by feed rolls as the end of the pipe burns off. The coupling automatically closes a supply valve in the supply line and then disconnects the line from the lance pipe as the trailing end of the pipe reaches the feed rolls of the furnace.

Abstract: The present invention relates to an apparatus for transferring a pasty matter for filling a hollow body.This apparatus comprises a cylindrical bowl in which the pasty matter to be transferred is placed and of which the bottom is extended by an axial tube open at its two ends, a push member being engageable in the bowl to push the pasty matter towards and in the axial tube, this push member having an outer diameter substantially equal to the inner diameter of the bowl and having an axial bore passing therethrough and a piston constituted by a rod of diameter equal to the inner diameter of the axial tube extending the bowl, housed and slidable in the axial bore of the push member to be engaged in the axial tube of the bowl and empty this tube of the pasty matter that it contains.

Abstract: A portable dispensing appratus which includes a resiliently deformable dispensing reservoir adapted to mount removably on the uppermost end of a dip tube which extends into a bulk container of liquid. The dip tube includes a one-way inlet valve near its lowermost end which prevents flow of liquid out of the dip tube, but which permits flow into the dip tube. Suction created by compressing the resiliently deformable reservoir causes liquid to enter the dip tube through the one-way inlet valve and to flow into the reservoir. The dispensing reservoir can then be removed from the dip tube and taken to a location where it is desired to dispense all or a portion of the liquid. The liquid is dispensed by squeezing the resiliently deformable reservoir, thereby forcing the liquid out through the nozzle. A one-way, pressure-operated outlet valve is preferably located in the dip tube inside the bulk container to permit compression of the resiliently deformable reservoir after placement of the reservoir on the dip tube.

Abstract: Apparatus for transferring material from one vacuum tight hopper to another includes funnel means having a valve member at one end adjacent the one hopper for controlling flow and valve means the other end of the funnel means for similarly controlling flow. Between the other end of the funnel means and the valve means there is provided collector door means movable between open and closed positions to prevent the material to be transferred from impinging on the sealing surfaces of the valve means.

Abstract: An improved gland seal is provided for an extrusion, chub container packaging apparatus. The seal comprises a rigid ring sealing element adapted to swivel upon a ball-like holder attached to the end of the filling horn. The sealing element may be simply positioned to compensate for variations in casing diameters and is not subject to expansion caused by pressure pulses during packaging. Package breakage and malformation is reduced and a uniform product is provided.

Abstract: A dispenser safety attachment for liquid additives and particularly for periodically dispensing increments of liquid additive which are corrosive, carcinogenic or otherwise possess qualities which suggest that contact therewith be avoided. The device is characterized by the provision of a receptacle adapted to be secured to a tank or like receiver or conduit for materials to be treated and a container adapted to be mounted in the receptacle, the container including a valve mechanism, known per se, and subject to opening and closing by relative rotation of the container and a spout. The receptacle and container interact in such manner that increments of the liquid in the container may be dispensed by relatively rotating the container and receptacle which has been mounted on the tank by torsional forces applied to the container.

Abstract: Apparatus and process for use in high-speed packaging of liquid-bearing substances, particularly foods. The apparatus comprises means to shield a sealable, particularly a heatsealable, portion of each of a series of packages with a protective and disposable shield means.

Abstract: An offshore oil production terminal system is described, of the type which includes a tall transfer structure that has a nonrotatable tower anchored to the sea floor and a rotatable portion that rotates with respect to the nonrotatable tower and is connected to a dedicated storage vessel. A fluid conduit of the system has a nonrotatable portion extending from the sea bed up alongside and through the tower to a fluid swivel at the top of the tower, the conduit also having a rotatable portion extending from the fluid swivel to the vessel. A choke located in the nonrotatable tower along the fluid conduit, decreases the high pressure of oil from the sea bed (e.g. 2,000 psi) to a moderate pressure (e.g. 200 psi) for passage through the fluid swivel, so that a moderate pressure fluid swivel can be utilized. In a system wherein the rotatable transfer structure portion is fixed to the vessel, the tower has a control deck at substantially the same level as the vessel deck and with a circular periphery.

Abstract: A clamp on gas cylinder filling head comprising an on/off valve and incorporating a bobbin which is extended by the initial pressure of the gas to be transferred. The bobbin, in conjunction with a clamp bar being an integral part of the head and spaced outwardly of the main body thereof clamps the head to and opens the inlet of a cylinder being charged. This halted movement of the bobbin causes a back-pressure within the head which forces a shuttle or spool valve mounted within a chamber of the gas inlet passage of the head to move from its state of rest to open the inlet passage to an outlet port to achieve discharge. Closing of the valve relieves the pressure within the head allowing return means for the bobbin to operate thus removing the clamping action thereof.

Abstract: Methods and apparatus for filling a cavity with a liquid from a hypodermic needle through a port provide the port with a straight passage leading to the cavity either directly or through a laterally offset further passage. The needle is partially inserted into the straight passage of the port. The partially inserted needle is stopped by engagement inside the port short of the cavity while an overflow and gas escape path is provided through the straight passage along the outside of the stopped partially inserted needle.

Abstract: Apparatus for transferring fluent material such as a liquid or gas from a chamber in which it is contained into a receiving chamber, at least one of said chambers having rigid metallic walls and being inaccessible for the use of conventional transfer means, said two chambers being connected by means such as a hose extending between one of said chambers and a hollow body sealedly attached onto the wall of the other chamber, and means for creating an orifice in the wall of said other chamber to permit the passage of a liquid or gas therethrough; pumping means to activate such transfer; and other means for the retrieval of said apparatus.

Abstract: A device for opening a door on an aircraft to expose a receptacle for receiving a fueling nozzle on another aircraft so that the first mentioned aircraft can be refueled in flight. The device has a hydraulically operated actuator for opening and closing the door and another hydraulically operated actuator for locking and unlocking latches engageable with the nozzle for holding it in the receptacle. The hydraulic system has a single valve for controlling flow of pressurized fluid through a single conduit to the door actuator for both door opening and door closing movement of the actuator piston. When closed, this valve isolates the hydraulic system from the pressure source so that no part of the hydraulic system is pressurized when the device is not in operation.

Abstract: Method and apparatus for sealing containers. The apparatus includes a slideable carrier closure member in the form of a plate and a closure member that is retained in a recess in the face of the carrier closure member. The two closure members are guided between an open position and a closed position. In the open position the carrier closure member is removed to one side of the opening of a first container and in the closed position the closure member is aligned for sealing the container. The apparatus permits two containers to be joined together, equipment inside one container to be transferred to the other container and the containers to be thereafter separated while continuously maintaining the containers and the equipment sealed from the atmosphere.

Abstract: A device for draining and collecting sump oil from a motor vehicle has a drain plug which is closed by a ball valve or rupturable membrane. Oil is drained from the sump by inserting a drain spigot into the plug body to open the valve, or to rupture the membrane, so that oil drains through a hose connected to the spigot into a shallow vessel which may be located beneath the vehicle. The vessel may be pyramid shaped or may, for example, be U-shaped so as to afford a clear working space beneath the sump. Two of the pyramid-shaped vessels may be held together base-to-base, one vessel being filled with fresh oil for sump replenishment.

Abstract: A system for handling hygroscopic metal halide pellets serving as fill material in high pressure metal halide lamps. The pellets are loaded into stoppered transport vials at their place of manufacture. At the place of utilization, the stoppered end of the vial is inserted into a self-sealing opening in a reservoir through which dry gas is flushed to remove any contaminants. The vial is then unstoppered without removing it from the opening and its contents spill out into the reservoir. A transfer device accommodating a set number of pellets is brought into conjunction with an outlet opening, the device is filled, and the pellets transported to their destination through a channel filled with dry gas.

Abstract: An apparatus is provided for filling the wells of an antibiotic plate with different concentrations of fluid including an array of fluid containers, each having a single needle valve inserted through a stopper member which is held in an open end of the container. Each needle valve includes an inner tube for supplying pressurizing air to one end of the containers which forces the fluid through an outer tube of the needle valve and out the opposite end of the container. A length of flexible tubing connected to each of the needle valve outer tubes carries the fluid through one of a plurality of slots formed in a pinch valve assembly. The pinch valve assembly includes slide members and resilient pinch rods extending laterally from sides thereof. In a first position, the slide members are held such that the pinch rods close the flexible tubing to prevent passage of the fluid into the wells of the antibiotic plate.

Abstract: A novel water gun is disclosed herein having a body formed with a central bore opening at its opposite ends to provide a discharge nozzle at one end of the body and a storage compartment or reservoir end at the opposite end of the body. The storage compartment end is adapted to releasably hold the end of an inflatable member which when loaded with water under pressure, expands so as to stretch the membrane of the inflatable storage compartment. Upon termination of the loading pressure, the inflatable member collapses under its own elasticity to discharge the stored water via the nozzle end of the body. A clamping device is employed for detachably connecting the inflatable storage compartment to its respective end of the body and a trigger mechanism may be employed for selectively releasing the pressurized water within the storage compartment.

Abstract: A sealed, sterile connection may be provided between a pair or more of containers having transparent, flexible, thermoplastic sealed walls, each of which contains an opaque, relatively rigid, hollow sealing member in the general shape of a truncated cone, open at both ends. The containers are brought together into facing contact, and the hollow sealing members are nested together with portions of the transparent walls of the containers positioned therebetween. The nested, sealing member cones are irradiated with infrared or the like through the transparent container walls to heat the nested sealing members. As a result of this, heat is conducted to the portions of the transparent walls between the nested sealing members, to seal the portions of the transparent walls together in an annular area between the sealing means. A portion of the transparent walls retained in the nested sealing members may then be torn away to make a sterile connection between the two containers.

Abstract: A device for the recovery of dry chemicals found in powdered form for fire extinguishers utilizing a container having first and second openings. A conduit permits the powder material to enter the container through the first opening. Another conduit permits the material to exit the second opening into the fire extinguisher. Lumping is prevented by the use of screens and the like within the container. As the material flows through the second opening of the container, air in the fire extinguisher is conveyed through the first opening in the container.

Abstract: A filler device which can be mounted in the fuel tank of a motorcycle to enable complete filling of the tank, when a fuel dispenser is utilized which has a vapor recovery seal that must be pressed against the outside of the tank so that the fuel nozzle must project several inches into the tank. The filler device includes walls forming a chamber with an open upper end for receiving the fuel-dispensing nozzle, an open lower end for flowing the fuel into the tank, and a seal assembly which can seal to the end of the nozzle to prevent fuel from entering the chamber and activating the shut off sensor on the nozzle when the tank is partially filled. When the tank is substantially full, fuel can flow through a drain opening near the top of the chamber to fill it and activate the nozzle shut off sensor. When the nozzle is withdrawn from the tank, the seal retracts to a location near the top of the tank, to permit substantially complete filling, or "topping out" of a more than half-full tank.

Abstract: A liquid dispensing nozzle has an eccentrically mounted seal at one end of a bellows, which is disposed in spaced relation to the spout of a nozzle to form an annular vapor return passage therebetween, to engage a fill pipe of a tank to form a seal therewith when the spout is disposed therein so that vapor flows from the tank to the annular vapor return passage of the nozzle. The seal includes a compressible member for engaging the fill pipe, a swivel plate, and a cap surrounding the bellows whereby the seal is removably fastened to the bellows for easy replacement. The swivel plate is pivotally connected to a spring, which surrounds the spout, so that the seal can pivot about two orthogonal axes with respect to the spout. The pivotal connection of the swivel plate to the spring is on top of the spout so that the maximum force of the spring is applied to the maximum eccentric surface of the seal.

Abstract: A vapor-recovery system in which a coaxial vapor-recovery fuel dispensing nozzle cooperates with portions of the vehicle fuel receiving and storage system to prevent the escape of vapors into the atmosphere during refueling. The fuel-dispensing nozzle comprises a rigid, tubular vapor-recovery member coaxially arranged around the nozzle discharge spout to define a vapor-recovery passageway therebetween. A seal means is located inwardly of the fuel tank fillpipe opening to sealingly engage the vapor-recovery member when the nozzle discharge spout is operatively inserted into the fillpipe so that substantially all refueling emissions will flow into the vapor-recovery passageway of the vapor-recovery member.

Abstract: An adapter for connecting in fluid communication a liquid dispensing syringe with the interior of a bottle containing a liquid, such as a liquid medication, includes a tubular body member composed of resilient material and being generally cylindrical in shape to fit snugly within the mouth of the bottle. Projections or beads are provided on the body member for engaging the inside surface of the bottle thereof in a continuous line of engagement therewith with a high pressure per unit area of engagement. An opening extends axially through the body member for receiving the nozzle of the syringe, and the opening includes a forward nozzle receiving portion and a rear portion. The axial length of the forward portion is substantially the same as the axial length of the nozzle so that the exit end of the nozzle terminates at the rear enlarged portion when the nozzle is inserted fully within the opening.

Abstract: A manually operated insulation gun for injecting particulated insulation into a confined wall space is disclosed. The insulation gun includes a tubular housing for receiving a load of particulated insulation material and a piston slidably disposed within the housing for ejecting the insulation material. The piston is manually operated by means of a piston rod attached to the piston and which projects through a closed end of the housing. A plunger is coupled to the piston and the closed end of the housing for breaking up compacted accumulations of the insulation material. A fill nozzle is connected to the discharge opening of the tubular housing for directing the flow of insulation material into the wall space.

Abstract: A shipping container having powdered reagent therein is mounted atop a transition chamber disposed on suitable support structure so that the contents of the shipping container may be discharged through a valve thereon and through the transition chamber into a dispenser vessel supported by weighing means suspended from the support structure and interconnected with the transition chamber by a yieldable coupling arranged to provide a fluid-tight connection between the transition chamber and the dispenser vessel irrespective of the weight of the contents of the dispenser vessel and a pair of conduits controlled by a common valve are arranged to supply pressure fluid such as an inert gas from a source under pressure into the transition chamber and into the shipping container in coordination with the mounting of the shipping container on a part of the transition chamber.

Abstract: A liquid dispensing nozzle has an annular member of a relatively soft material at one end of a bellows, which is disposed in spaced relation to the spout of the nozzle to form an annular vapor return passage therebetween, to engage the fill pipe to form a seal therewith when the spout is disposed therein so that the vapors flow from the tank to the annular vapor return pasage of the nozzle. The soft seal member is removably fastened to the end of the bellows for easy replacement. The spout has a pair of latch rings thereon spaced from each other with each having a retaining lug to enable the spout to be retained within any type of fill pipe since one of the lugs on one of the latch rings is always capable of being retained by the lip of the fill pipe opening.

Abstract: The present invention provides an apparatus suitable for transferring powdered material and particularly suitable for filling fire extinguishers of the dry chemical type. The apparatus includes a reservoir for storing the powder and a vacuum system for transferring the powder to a filling nozzle. The apparatus also includes means for filling the reservoir from conventional shipping containers and preferably includes filters and cut-off means automatically operable to shut off the apparatus when the transfer of powder is complete.

Abstract: This invention provides a liquid separating composition containing as a base material a liquid polymer of hydrocarbon or derivatives thereof having a viscosity ranging from 100 to 20,000 CP at 20.degree. C., suitable amounts of additives for adjusting the specific gravity and viscosity of the composition and a network former for imparting a thixotropic property to the composition. This invention also provides an apparatus for applying a liquid separating composition, comprising a vessel filled with a liquid separating composition, and a cannula fixed to the vessel, for piercing into a rubber cap of a liquid container.The liquid separating composition is transferred to the liquid container by centrifuging the apparatus connected to the liquid container.

Abstract: A system of nozzles and seals provides a means to return gasoline vapors from a gasoline tank to a gasoline storage tank.

Abstract: A gasoline dispensing and vapor recovery nozzle, and adaptors and fittings as may be required to modify certain gasoline tank fill pipes to consistent geometry and dimensions, such fittings including extension to the liquid conveying portion of the dispensing nozzle and extension of the venturi vent tube of the automatic shut-off system of the nozzle, thereby permitting early detection and shut-off of fluid flow upon rising liquid levels in the gasoline tank and fill pipe.

Abstract: A dispensing nozzle for delivering fuel to selective fuel tanks has a control rod which must be displaced longitudinally by a restrictor plate in the fill tube of the fuel tank before the manual lever of the dispensing nozzle is effective to open the flow controlling valve of the dispensing nozzle. Thus, the introduction of one grade of fuel into a tank not having a restrictor plate and requiring a different grade of fuel is prevented.

Abstract: A nozzle for use with a light, portable, miniaturized tire inflator. A resilient insert in the well of the nozzle enables it to be connected directly to the metal thread of a tire valve either by mating the insert with the screw thread or by pushing the insert onto the screw thread. The resilient nature of the insert prevents cross threading of the nozzle with the screw thread. During the inflation of the tire, the inflating gas exerts a force on the insert, thus causing it to compress. Such compression enables the insert to hold the screw thread and to provide a seal during the transference of the inflating gas without requiring any mechanical assistance to maintain proper contact with the valve.

Abstract: A combustion engine system has a tank for volatile fuel with a flexible bag inside equipped with its own breather valve separate form the fill pipe for the tank. When the tank is filled, a muff around the full pipe seals the tank against exhaust of volatile vapors, and air from the bag is forced out the breather valve as it is displaced by the liquid fuel until a valve element on the bag shuts off the breather valve, whereby only pure air is vented to the atmosphere. As the tank empties during use, air returns through the breather valve to fill the bag and replace the space in the tank previously occupied by the liquid fuel, and incoming air may be dried. There is a vapor return for the automatic nozzle used to fill the tank with fuel from a stationary reservoir at the filling station and automatic means to prevent filling the tank until the nozzle is sealed in the fill pipe.

Abstract: Apparatus for connecting two otherwise coupled railroad vehicles in gaseous flow communication comprises first and second ducts each mounted respectively at one end to one of the railroad vehicles, first and second coupling ducts each mounted respectively at an opposite open end of the first and second ducts to pivot about a vertical axis with one end enclosed in its respective duct and with a second end extending out from its respective duct, first and second frame members each mounted respectively at the second end of the first and second duct and having a mating surface circumferentially surrounding the second end, and first and second biasing means to extend between the respective pair of duct and coupling duct to urge the second end away from its duct and maintain the respective mating surfaces in abutting and sliding engagement one with the other.

Abstract: A device for opening a door on an airplane to expose a refueling receptacle having latches for connection to a fueling nozzle deployed from a tanker airplane so that the airplane may be refueled in flight. The device has a hydraulic actuator for opening and closing the door, first valve means for controlling the first actuator, a second valve means for controlling another hydraulic actuator that locks and releases the latches, a spring for opening the door when there is a failure in the supply of pressure fluid for the first actuator, and a means to prevent closing of the door before the latches are released from the nozzle.

Abstract: A spraying device for applying, through an injection opening, a coating material such as anticorrosion oil onto the inner walls of a hollow body, comprising a spray gun provided with an atomizing nozzle and an interchangeable front piece connected down stream thereof. The front piece comprises an ejector barrel for introduction through said injection opening and a positioning collar rigidly attached thereto, the positioning collar. The latter being adapted to define the position of the ejector barrel during spraying. A control unit connected to the spray gun comprises means for determining the duration of each spray operation from the very moment the trigger of the spray gun is pulled.

Abstract: An improved fuel vapor recovery means surrounding the spout of a fuel-dispensing nozzle is sealed to the fillpipe of, e.g., an automobile fuel tank, by means of a highly anisotropic or mono-directional magnet disposed on the forward portion of the vapor recovery means. Fuel vapor escaping from the fuel tank during the filling operation is thus minimized and the magnet provides sufficient directional force to provide additional support for the entire nozzle. The magnet is preferably of the ceramic type and is magnetically oriented such that it exhibits a strong magnetic force axially of the spout, thereby sealing the vapor collector to the fillpipe, and may be backed by a steel plate to direct and enhance the magnetic forces issuing from the front of the ceramic magnet.