Abstract: A separate canister of propellant is operatively connected to a canister housing an noxious chemical or dye that is activated by a spring loaded trigger normally holding a connecting valve closed. The system is affixed to a cuff made from a fabric that wraps around the wrist of the wearer.

Abstract: A pluggable multiple cartridge comprises two separately manufactured and optionally filled storage containers, a common outlet tube socket provided on one storage container, which common outlet tube socket contains a separately disposed channel for each storage container, and the other storage container comprises a dispensing channel pluggable into the common outlet tube socket. Further, the two storage containers can be fixed together at their other ends. Such a pluggable cartridge solves the sealing problems of the outlet parts present in conventional pluggable cartridges.

Abstract: Viscous flowable material dispensing apparatus for dispensing viscous flowable material such as food material. The apparatus is provided with a supply manifold for receiving and distributing the viscous material with air actuated reciprocating pump connected to the manifold to force the material therethrough, facilitated by one way inlet and outlet valves in the manifold. A pattern plate adapted to receive the material from the manifold into a flat chamber with a dispersing pattern plate supported in the chamber to disperse the material throughout the chamber. A pattern plate covering the plate chamber to receive the dispersed material and dispense same in a pattern over object to receive the material. Pneumatic control valves are utilized for operating the pump to continuously provide repeated movement of material through the apparatus.

Abstract: A droplet dispenser for pasty material, for example a puree, comprises a reservoir having a multiplicity of dispenser tubes. A rotor having blades rotates in the pasty material which is kept at a constant level. The tips of the blades do not touch the inlets of the dispenser tubes but pass a certain distance therefrom which is typically from 20 to 30 times the maximum dimension of the particles in the pasty material. Typically, the rotor is rotated at from 20 to 50 rpm.

Abstract: A method and apparatus for dispensing multiple, closely spaced beads of viscous liquids such as hot melt thermoplastic adhesive is provided which comprises a dispensing device including a nozzle assembly having a nozzle body connected to a nozzle plate carrying a number of closely spaced nozzle tips. The nozzle body is formed with an internal adhesive flow passage terminating with an elongated distribution channel having an outlet. A number of comparatively small diameter discharge passageways are formed in the nozzle plate, each connected to one nozzle tip, and structure is provided for transferring the adhesive from the elongated distribution channel in the nozzle body into each of the discharge passageways, against the influence of gravity, for discharge from the nozzle tips as individual extruded beads.

Abstract: A conventional manual pump beer keg dispensing assembly is improved by widening the exit tube and adding a plurality of spouts. A keg of beer can thereby be emptied in half the time while serving three patrons at once.

Abstract: Apparatus and method to move granular materials in an even flow by centrifugal force from a rotating surface to a plurality of circumferentially arranged receiving points includes a rotatable inverted cone provided with a peripheral base flange and having an angle of inclination of the cone surface matching the angle of repose for the material to be distributed. Material delivered to the apex of the cone flows by gravity down the cone surface to establish the angle of repose for such material with a toe point at the flange where it comes to rest when the cone is stationary. A cylindrical hopper, to accumulate material from the cone, is vertically adjustably secured to the flange so that the bottom of the hopper is spaced above the flange to define a flow passageway which can be enlarged or reduced by vertical adjustment of the hopper relative to the flange.

Abstract: The product to be poured, which is typically constituted by an aerated product such as meringue mixture or the like, is admitted to a tank which is kept closed and only partially filled with the product to be poured. A continuous, static, relative aeriform pressure, typically of the order of 0.2-0.3 atmospheres, is maintained in the portion of the tank which is not occupied by the product. Precise small quantities of the product are poured through openings in the lower portion of the tank which are associated with delivery nozzles controlled by obturators, preferably of the cylindrical, male type.

Abstract: The present invention is a container for codispensing two or more semi-solid products which is operable by outside manual motion. It includes a main body which is divided into at least two compartments by a divider wall so as to form a plurality of compartments with at least a first compartment and a second compartment. It also has an outlet connected to each of the plurality of compartments. There are one or more fins located within the first compartment, this first fin having an inner edge, and being rotatably connected to the housing at the inner edge, and a second fin located in the second compartment, this second fin having an inner edge, and being rotatably connected to the housing at the inner edge. There is a component for simultaneously rotatably moving the plurality of fins so as to decrease the volume within the compartments and so as to push material therein out simultaneously for codispensing.

Abstract: A pushbutton for a fluid dispenser includes a chamber 39 provided with three outlet orifices 5, and at least one cylindrical cavity 24 having an axis of symmetry 2. A piston 31 secured to three outlet closures is slidably received in the cylindrical cavity, and is urged by spring 37 to cause the three closures to seat and seal against the orifices. The piston is pushed back by the pressure of the fluid substance emitted by a dispenser to open the orifices, and is extended towards the outlet orifices by a rod 32 having a degree of flexibility. The closures are constituted by three valve pins 35 secured to the rod, each having a tip 36; 36' configured to close one of the orifices.

Abstract: Leakage from the manifold of a manifold type multi-channel dispenser, aspirator, or washer may be diminished by employing siphon shaped pipettes and backsipping liquid from the long leg of such siphon shaped pipettes after each use of the device. The siphon shaped pipettes may be attached to the top-most part of the manifold so as to facilitate the purging of bubbles therefrom.

Abstract: An attachment for use with a grease gun receives grease under pressure therefrom in a reservoir, and at least three, outwardly projecting, circumferentially spaced nozzles are carried by the attachment uniformly dispensing grease into and supporting a hub upon a spindle.

Abstract: A doser-dispenser has a single doser unit which is associated with at least two dispenser units. The outlet of the dosing chamber of the doser unit is connected in parallel to each of the dispensing chambers of at least two dispenser units. The active volume of the dosing chamber holds at least two whole doses of product to be dispensed through the two distinct dispenser units. A synchronization device which coordinates the movements of the doser-piston and of the intake flap, with a result that, during delivery of a first dose of product out an dosing chamber, only the ejection valve of the first dispenser unit is open, that, during delivery of the second dose of product, only the ejection valve of the second dispenser unit is open, and so on.

Abstract: A volume measurement and dosage device possesses a cylinder- piston- and valve-system (4). With this system, liquid can be drawn up and/or delivered in defined quantities. At least two channels (33, 36, 38) are provided in the valve-system, which can be connected with at least one opening (32) in the cylinder bottom (11). The piston (12) is displaceable within the cylinder (10) by means of an actuation device (3). The cylinder (10) is at the same time surrounded by a holding device (5, 40), in which it is mounted in bearings to rotate with the cylinder bottom (11) around an axis common to the longitudinal axis of the cylinder (Y) or parallel to it. The cylinder bottom (11), with at least two channel openings (29, 30, 31), rests with a sealed seating upon a valve element (28). Through rotation of the cylinder bottom (11), its opening (32) can alternately be aligned with the channel openings (29, 30, 31) of the valve element (28).

Abstract: A syrup dispensing system provides dual dispensing lines to a dispensing head and drawn from a single pump. The lines are interconnected by means of a suitable manifold or other connector to allow intercommunication between the two. A single valve is interposed between the connector and the dispensing pump. Each of the dispensing lines extends upwardly to an apex and then downwardly to the dispensing head, with the dispensing head and apex being above the top syrup level of the pump. By venting the pump to atmosphere after termination of a dispensing cycle and then opening the dispensing valve, syrup backflows to the pump and past the respective apexes to prevent unwanted dripping of syrup during quiescent periods of the syrup dispensing system.

Abstract: A reaction injection molding machine provides for independent spring actuation of pistons in metering cylinders. Individual compression of the springs is provided by hand screw compression mechanisms. The pressure level of the liquid in each metering cylinder is adjusted to a desired level of pressurization by the total energy transferred to the springs. Impingement mixing of liquid streams from each metering cylinder is synchronized by a valving rod which includes a plurality of mixing heads. Upon appropriate positioning, a mixing head opens an orifice from each metering cylinder to allow streams of liquid to be expelled into impinging contact. The resultant product is directed by the mixing head into a separate collection vessel associated with that mixing head where the product may react and solidify.

Abstract: A soft drink dispenser capable of rapidly dispensing carbonated beverages with minimized foaming action. The syrup and soda are dispensed separate from each other and allowed to mix upon the ice in a cup placed beneath the dispensing head. The dispensing of the syrup and soda is staged to minimize foaming while achieving optimum beverage taste. Syrup is dispensed from individual pumps which communicate with a bulk supply. The syrup is consolidated in the pumps, preventing waste or the introduction of "slugs" into the dispensing line. The temperature of the syrup is monitored and compensation is made during the dispensing cycle to accommodate changes in viscosity. In generating soda, water is precooled and then introduced into an insulated tank where it is subjected to pressurized carbon dioxide. In the pour head, a cluster of soda orifices are peripherally encompassed by syrup orifices, certain of which are angled to cause the syrup to convolute the stream of soda.

Abstract: A device for forcing liquid into the wells of a multi-well plate, comprising a tank having an interior for holding a liquid, the tank including a bottom portion having multiple fine orifices spaced for registry with each of the multiple wells of the plate, a top portion opposite the bottom portion, and side portions connecting the top portion and the bottom portion, an inlet for supplying rinsing liquid to the interior of the tank, and a pushable surface portion selectively movable towards the interior of the tank for forcing rinsing liquid contained within the tank through the orifices.

Abstract: An apparatus for injecting soft baked goods or cakes with different fluids includes a manifold defining a pair of spaced supply channels or chambers, a supply valve defining a port and a slide gate valve. The slide gate valve communicates with a passage and suck back chamber. A suck back piston is positioned within the suck back chamber. Secured to the underside of the manifold is a needle plate. A plurality of dual passage injection needles are secured to the plate. The plate defines a plurality of channels which communicate with the injection needles.

Abstract: A liquid dispenser for selectively dispensing a plurality of different liquids includes a separate reservoir for each of the fluids, and a separate nozzle for dispensing each of the fluids. A separate hydraulic dispensing system having a cylinder containing a piston is connected to each reservoir and nozzle for removing fluid from each reservoir and feed the liquid to the respective nozzle. A single hydraulic operating system including a cylinder containing a piston is connected to each dispensing cylinder to selectively operate the piston in each dispensing cylinder. The piston in the operating cylinder is operated by an electric motor having a threaded shaft, a nut on the threaded shaft and a drive arm on the nut. The drive arm is connected to the piston in the operating cylinder to move the piston a selected distance and thereby dispense a selected amount of liquid from a selected nozzle. Alternatively, the drive arm on the nut can be connected directly to the piston in the dispensing system.

Abstract: A hopper and agitator assembly for an ice dispenser is characterized by an ice storage hopper having at least two ice dispensing openings and dual rotary agitators in the hopper for urging ice bodies through the openings during dispensing operations. The agitators are mounted side by side for rotation in a common plane and have radially extending arms, the ends of which sweep past the dispensing openings. By using dual agitators, the hopper may have a length considerably greater than its width, so that even when the dispensing openings are toward opposite ends of the hopper, the ends of the agitator arms still sweep closely past the openings to efficiently urge ice through the openings.

Abstract: A control system and method is disclosed for a plaster pump 10. A pair of nozzles A, B dispenses material pumped from the nozzle and are connected by a "Y"-branch 50 in supply lines 11a and 11b to pump manifold 10a. Actual pressure signals 14a are compared in a comparator 16 to preset pressure signal 28. A differential pressure signal 16a is delivered to a signal switch 34 which controls a throttle driver 38 to control throttle 40 and pump 10. The pump may be throttled up or down to satisfy the pressure difference and bring the pressure to the desired preset pressure. An actual pressure signal 14c is delivered to an overpressure comparator circuit 26. An upper pressure limit signal 28a is compared to actual pressure by comparator 26. If an overpressure condition exists, an overpressure signal 26a is sent to signal switch 32 which shuts off or idles down the pump. If either nozzle A or B is shut off, a nozzle-off signal at 64a is sent to logic controller E.

Abstract: A nozzle assembly for dispensing measured volumes of a liquid has a valve for dividing an inflowing volume of liquid into a plurality of equal outflowing aliquots through the use of a radial spreading zone in the valve. The valve is connected to a plurality of nozzles which dispense the liquid into containers. The nozzles each have a sump and a plurality of outlet nipples to eliminate dripping of liquid from the nozzle during valve drawback.

Abstract: Apparatus for automatically dispensing accurately a predetermined quantity of a liquid required to be stored at room temperature including a syringe pump, a liquid tank, and a pump displacement mechanism for moving the syringe pump between the liquid tank and a container. The piston of the syringe pump is displaced by a piston displacement mechanism. A weigher measures weights of the tank and liquid in the tank as well as a draining system for draining the liquid of the liquid tank. Liquid is supplied to the liquid tank from a supply system. A control device controls displacement of the syringe pump and the piston of the syringe pump, actuation of the supply system and the drainage system, and reads measurement output signals of the weigher.

Abstract: An arrangement havign a closing member for filling mouthpiece of a filling machine for filling material of a pasty up to a chunky or lumpy consistency, whereby during the filling packaging containers are stepwise moved underneath the filling mouthpiece. When the filling material is very tough and hardens rapidly, it is desirable that the heap-like remanent tip Z of the filling material, which remains after the filling operation,is disposed in the middle of each packaging container. This achieved by means of a closing member that includes two identical oppositely rotatably movable cylinders, each one of which is provided with a rectangular recess. These recesses extend to each one of the cylinders in such a way that a disc-shaped base portion and a shank remain, which shank has a circular segment-shaped cross-section.

Abstract: A dispensing device enables a liquid to be delivered to the cavities of a titration plate. In order to obtain optimum quality of delivery, charging pipes lead from a distributing pipe first upwards, and then, after passing a bypass area, downwards to a discharge area.

Abstract: Apparatus for charging a shaft furnace for calcining and sintering material in lump form, such as limestone, dolomite, magnesite or the like, with granular bulk material, with a charging silo arranged above the furnace shaft having a substantially circular cross-section with a substantially homogeneously mixed bulk material and a charging bunker outlet for supplying the bulk material onto the surface of the bulk material column to be covered in the furnace shaft in a distribution controllable over the shaft diameter, characterized by a substantially circular plate arranged in spaced manner below the charging bunker outlet and whose diameter is smaller than the internal diameter of the furnace shaft and larger than the diameter of the opening of the charging bunker outlet and a rotary ring box or the like concentric to the plate and to which is fitted a plurality of strippers which penetrate the sloping bulk material in the plate and with each of the strippers is associated in fixed manner one of the guide chu

Abstract: The invention relates to a dosing and filling arrangement for containers of fluid or pasty masses, in particular contaminant-free nutrient material, such as milk, yogurt, pudding, desserts or the like. The arrangement includes a housing having two axially movable pistons. A first of such two pistons is a dosing piston and a second independently movable piston is the valve piston which is coaxially arranged relative to the dosing piston. The arrangement also has a mouthpiece on the lower side of the housing which is coaxial with the dosing and valve pistons. The valve piston rod is centrally arranged in a bore of the dosing piston and the hollow piston rod of the dosing piston is slidably movable in a cylinder of the housing. The piston rod has advantageously a plurality of equiangularly disposed longitudinal slots disposed on its periphery. The piston rod has a first control collar which coacts with the mouthpiece of the housing.

Abstract: An apparatus and a method for sanitizing beverage dispensing systems of the type using a pump that draws beverage from a single port collapsible container which is otherwise airtight. The system provides a manifold having a main manifold chamber with one input and at least one output and having a secondary manifold chamber with an input and an output, and sanitizing fluid containers. The drink dispensing hoses are attached to the outputs of the main manifold chamber, and either a sanitizing fluid or water is attached to the input of the main manifold chamber. The water may be provided through the secondary manifold chamber. Afterward, sanitizing fluid and water are drawn through the manifold and the dispensing hoses and heads, sanitizing the system. Sanitizing fluid is provided in collapsible containers similar to the beverage containers and having a venting device.

Abstract: An apparatus for feeding a fixed quantity of dry feed to domestic animals, comprising a pair of dry feed master hoppers, a pair of primary conveyors respectively communicated with the pair of master hoppers, a plurality of first feed box hoppers communicated with one of the primary conveyors and a plurality of the second feed box hoppers communicated with the other of the primary conveyors. A pair of secondary conveyors run parallel to each other and are respectively communicated with the first and second side feed box hoppers. Each of the secondary conveyors has a plurality of feed outlets at regular intervals in the longitudinal direction thereof. A plurality of first and second feed boxes are formed by recesses on the both side surfaces of a corrugated wall plate provided under the pair of secondary conveyors.

Abstract: A system for applying sealant material to the welded seams of an automobile body including a reciprocating piston pump for supplying the material under pressure from a reservoir to an overhead distribution manifold. From the manifold the material is supplied to a plurality of extrusion guns through drop lines, each of which includes a pressure regulator and volumetric metering gear pump for maintaining a constant flow rate to the guns irrespective of pressure changes which may occur in the distribution manifold.

Abstract: A valved device for dispensing multiple closely spaced streams of liquid from a plurality of dispensing orifices. The device includes selectively actuatable valve needles associated with each of the dispensing orifices for controlling liquid flow from the orifices. A pair of oscillatable cam shafts, each having multiple cam surfaces of different configurations, controls actuation of the valve needles.

Abstract: Apparatus for melting and dispensing thermoplastic material including a hopper for receiving solid thermoplastic material, a flow-through grid melter secured to the bottom of the hopper and a reservoir mounted beneath the grid melter. A pump is mounted in the bottom of the reservoir and is connected to the reservoir outlet via a flow passage which contains a gate valve operable to enable the passage to be blocked and the pump removed for repair or replacement without the need to first drain the reservoir of molten material. The pump is driven by a motor which is mounted upon a pivotally supported plate such that the motor may be easily and quickly disconnected from the pump to further facilitate quick repair or replacement of the pump.

Abstract: A process and apparatus for joining two abutting pieces of carpet. The process comprises applying to the carpet backing along both sides of the juncture a strip of hot molten glue at about 210.degree.-425.degree. F. and applying a joining tape to the strip of molten glue, pressing together the tape, glue and carpet backing to cause the glue to soften and penetrate both the tape and the backing, and allow the glue to cool and solidify into a fused and unitary bond. The apparatus comprises a hot glue dispensing gun with a nozzle and a glue applicator attached to the nozzle for uniformly dispensing a strip of glue, a roll of joining tape fed from above and adjacent to the applicator, and a spring loaded roller to press the tape onto the top of the glue strip.

Abstract: A seed dispensing apparatus includes an upper grain flute housing which mounts a grain flute type seed dispensing system, as well as a lower seed plate housing which mounts a seed plate type dispensing system. Both the flute type dispensing system and the seed plate type dispensing system include respective drive shafts. By selecting and rotating the appropriate one of the drive shafts, the disclosed seed dispensing system can be used either to dispense relatively small seeds via the flute type dispensing system, or relatively large seeds via the seed plate type dispensing system.

Abstract: A material spreader for spreading large rock over a wet concrete or other surface utilizes a pair of hoppers which are driven back and forth on a bridge support spanning the surface. A gasoline engine mounts above the hoppers and furnishes power for a reversibly-controllable hydraulic hopper drive motor. The rock is dispensed by a rough-surfaced hydraulically motor driven cylinder with the discharge opening being controlled by a pair of spring-loaded gates which position themselves in response to the size rock being spread and the direction of travel of the spreader.

Abstract: This invention provides an apparatus and a method for sanitizing beverage dispensing systems of the type using a pump that draws the beverage from a single port collapsible container which is otherwise air tight. The system consists of a manifold having a main manifold chamber with one input and at least one output, and a secondary manifold chamber having an input and an output. The drink dispensing hoses are attached to the outputs of the main manifold chamber, and either a sanitizing fluid or water is attached to the input of the main manifold chamber. The water may be provided through the secondary manifold chamber. Before connecting to the sanitizing fluid, the main manifold chamber is opened to the atmosphere, and remaining beverage in the dispensing hoses is drawn out by the pumps to the dispensing heads. Afterward, sanitizing fluid and water are drawn through the manifold and the dispensing hoses and heads, sanitizing the system.

Abstract: A toy water shooting gun for shooting water in a plurality of directions with respect to the axis of the gun. The toy water gun is operable by a plunger/piston rod movable within a water storage cylinder. A cap having a plurality of apertures is located at the discharge end of the water gun and is rotatable to operate a valve to selectively align the apertures with the water cylinder for discharge therethrough. The apertures when in communication with the water cylinder discharge water in different directions, i.e., forward, rearward and sideways.

Abstract: A fully disposable self-contained manifold-type multiple stroke dispenser having sufficient capacity for dispensing 96, microliter quantities of liquid without refill to accommodate a standard 96-well microtitration plate.

Abstract: The progressive distributor contains a control piston which is slidable in a cylinder. The piston contains a main channel and a plurality of radially disposed distribution channels for distributing lubricant. The cylinder has feed channels which are aligned with feed channels in a housing of a machine part to be lubricated and are arranged in offset relation to the distribution channels of the piston. The respective distribution channels and feed channels are arranged so that during movement of the piston in the cylinder, the various feed channels are progressively supplied with lubricant.

Abstract: The invention pertains to a system for dispensing highly viscous materials, such as hot melt adhesives, wherein flow surges are eliminated. The material is pumped by an expansible chamber motor operated by compressed air and flow through a dispensing nozzle is controlled by a valve. Air pressure regulators provide a low pressure on the material when no dispensing is occurring, and a higher pressure is imposed upon the air motor during dispensing. Selectivity between air pressures is regulated by an electric switch simultaneously operated with the dispensing nozzle wherein the higher dispensing pressure is imposed on the pump motor only after the nozzle has been opened, thereby preventing material flow surges. If dispensing occurs through a plurality of nozzles communicating with a common pump additional air pressure regulators are provided to increase the pump flow proportional to the amount of material being dispensed to provide uniform dispensing characteristics from each of the dispensing nozzles.

Abstract: An apparatus for melting and dispensing thermoplastic material comprising a melter tank, a pump contained within the melter tank, a dispenser, and a manifold block mounted on the bottom of the melter tank. Thermoplastic material melted in the tank flows from the melter tank, through the pump, through the manifold block, to the dispenser. The pump is mounted in the tank and is either a reciprocating piston type or a rotary gear type pump, the two being interchangeable upon the tank. If a gear type pump is used, it is provided with a built-in pressure control valve operable to circulate the pump flow back to the tank when the dispenser flow is terminated or when there is greater pump flow than is required at the dispenser. Contained interiorly of the manifold block in the flow path between the pump and the dispenser there is a replaceable filter.

Abstract: An apparatus and method for determining the heating value of gaseous fuels is disclosed which include the novel means for establishing a mixture of air and the gaseous fuel of interest in known volumetric proportions. An electrochemical sensor is provided to sense the products of combustion of the precise volumetric mixture and the output of the sensor is indicative of the relation of the mixture to a stoichiometric mixture of fuel and air. This system is provided for adjusting the proportions of fuel and air in the mixture of interest in response to the output of the electrochemical sensor until the sensor indicates that the mixture of known proportions is substantially stoichiometric. The system is provided for determining the heating value of the fuel from a known relationship between the heating value of the constituents of the fuel and the amount of oxygen required for stoichiometric combustion.

Abstract: A directional applicator for a self-defense product includes a container having a bottom, side walls and a top; a valve mounted to the top of the container, an actuating stem, having an axial dispensing bore, for the valve, projecting outwardly from the container; an actuator with a first part having therein a spray nozzle disposed on the stem of the nozzle disposed on the stem of the valve with the nozzle in communication with the bore, and a second actuator part fixedly mounted to the container; and a key-ring mounted to the first part which is fixed to the container for axial sliding movement along the applicator between a position where it is adjacent to the actuator and a position where it is spaced from the actuator sufficiently to permit a thumb or finger to be inserted between the key-ring and actuator to operate the actuator to thereby provide a safety feature to prevent accidental actuation.

Abstract: A weighing system for making a predetermined weight of a product comprised of individual articles having variable weights by selecting the product stored in a combination of a predetermined number of storage cups. Quantities of the product having targeted weights are distributed to a plurality of scale-controlled hoppers for accurate weighing. The weighed product is fed from each of the scale-controlled hoppers to a plurality of storage cups associated with each of the hoppers, and the product weight associated with each storage cup is registered. Specific combinations of storage cups are tested to determine whether the combined product weights therein add to make the desired weight, within acceptable limits. The first combination found to make the weight is used, and the appropriate storage cups are emptied to a container for receiving the product. The appropriate storage cups are refilled from the scale, and the process repeats.

Abstract: A fay surface sealing tool for applying sealant between wing skin and spar chord joints prior to fastener installation. The fay surface sealing tool includes a plurality of plurality of spaced apartures for dispensing the sealant in bead form between each row of fastener holes and on each edge margin subsequent to joint opening.

Abstract: A fay surface sealing tool for applying sealant between wing skin and spar chord joints prior to fastener installation. The fay surface sealing tool includes a plurality of plurality of spaced apertures for dispensing the sealant in bead form between each row of fastener holes and on each edge margin subsequent to joint opening.

Abstract: An apparatus for injecting slurry in a field has a wheeled slurry tank, a feed conduit communicating with the interior of the tank, a transverse manifold to receive slurry from the feed conduit, several slurry injector pipes spaced along the conduit, and either a slurry pump or air pressurizing means for moving slurry from the tank under pressure for discharge through the feed conduit, the manifold, and the injector pipes. In all the slurry injector pipes are identical flow controlling and equalizing elements which have a single orifice and which are formed of elastomeric material which can flex to facilitate passing solid debris through the orifice. The orifice size provides a positive pressure head in the manifold so all the pipes deliver substantially equal quantities of slurry per unit time under varying conditions of operation.

Abstract: Fine particulate solid fuel particles are delivered from a venturi ejector to a rotating double-armed distributor which distributes fuel and air sequentially to conduits leading to the burner ejector of a kiln. The distributor is sealed and pressurized with air so as to provide the conduits with additional pulses of air following the times at which they receive fuel and air from the distributing operation.

Abstract: An apparatus for liquefying meltable material comprises a container adapted to be filled with the material to be liquefied. The container has a heavy bottom wall formed with closely adjacent perforations which taper in downward direction. The sum of the open cross-section of the perforations at the upper face of the bottom wall is only slightly smaller than the total area of the latter, whereas the sum of the smallest cross-sections of the perforations is only a small fraction of the total area of the bottom face of the bottom wall. The bottom wall is heated by electrical heating elements located in ribs separating the perforations from each other to a temperature to liquefy the material passing from the container into the perforations and the liquefied material flows in a collecting trough arranged below the container and separated by a heat insulating layer therefrom.