Abstract: A poultry watering system includes a fluid conduit integrally formed with a pair of depending flanges. Each flange has a retention ledge depending therefrom and extending toward the other flange. A plurality of openings are provided in the fluid conduit. A flat sealing surface is disposed about the openings. A plurality of poultry drinkers including securement arms are provided. An O-ring is disposed about the top of each drinker. The drinkers are positioned between the flanges such that the inlet of the drinker extends through the opening and the O-ring is adjacent the sealing surface. The drinker is then rotated such that the retention arms are disposed above the ledges. In this manner, the drinker is secured to the fluid conduit and the contact between the O-ring and the sealing surface forms a water-tight seal around the opening.

Abstract: A liquids dispensing valve comprising a cylindrical body (10) having a tapered outlet passage leading to an outlet orifice (12) at one end and an inlet orifice (30) at the other. Multiple pistons (18, 19, 20 and 21) depressed by springs (23, 24 and 25) progressively close the orifice (12). An air cylinder (14) with piston (16) progressively retracts the pistons (18, 19, 21) to open the valve and subsequently causes the valve to close progressively. Liquid flows downwardly through the ducts (28) in the valve in a generally axial or longitudinal direction and the subtended angle between the longitudinal axis of the body (10) and the wall of the tapered outlet passage is not more than 50.degree..

Abstract: A measured dose dropper includes an adjustable extension fitted within a hollow barrel in an end opposite that of the opening of the barrel. The adjustable extension includes gradation marks which correspond to the volume within the hollow barrel as adjusted by sliding the adjustable extension. A float within the hollow barrel acts as a float valve when fluid is drawn into the hollow barrel, preventing no more than the desired precise amount of fluid to be contained within the hollow barrel. Accordingly, an adjustable measured dose of fluid can be reliably and accurately dispensed.

Abstract: An apparatus is used to apply medicament to an eye and stores the medicament in a medicament chamber. A nozzle is coupled in fluid communication with the medicament chamber and is formed by an outer nozzle portion and an inner nozzle portion received within the outer nozzle portion. A seam is formed by the interface of the inner nozzle portion and the outer nozzle portion and is normally in a closed position to prevent the passage of medicament through the nozzle. The seam opens in response to the flow of medicament of sufficient pressure into the seam to permit the passage of medicament through the nozzle for release into the eye.

Abstract: A slide for an eye drop dispenser. The slide, which may be secured to a container, is formed with a longitudinally extending channel and a distal end configured to rest against the lower eyelid of an individual during administration of a drop to the eye. The dispensed drop rolls along the channel and into the eye.

Abstract: The invention relates to a device for unidirectionally dispensing a hygienic cleaning and/or flushing liquid into the nasal and sinus cavities when an occluder is inserted into one of the nostrils. The liquid is contained in a pliable container which, upon insertion of the occluder into one of the nostrils and deformation of the container per se by squeezing, will cause the liquid to move via a passageway to the occluder and into the nostril. The device is provided with an anti-retractive valve which permits a unidirectional flow of the liquid only in a dispensing direction so any contaminated liquid that had been previously dispensed cannot reenter the container through the liquid dispensing passageway.

Abstract: A breakage-resistant form of separatory funnel or other laboratory glassware, such as addition funnel, flask, buret, or chromatography column, is provided. The glassware features an unbreakable plastic stem, preferably removably attached, below the glass stopcock in place of the usual glass stem.

Abstract: The watering valve (10) according to the invention is designed for feeding of water to the chickens according to their need for water in such a way that a flow restriction section (27) which is formed between an upper pin (16) and a part of the housing (12) associated therewith is variable in order to set different water flow rates. For this purpose, the upper pin (16) is provided with portions (25, 26) of different diameters. A variation of the relative position of this upper pin (16) in the housing (12) makes it possible to enlarge or reduce this flow restriction section (27). Accordingly, a smaller or greater quantity of water (per unit of time) can flow out of the watering valve.

Abstract: A dispenser for dispensing sterile solution which includes a valve to control the dispensing of the sterile solution from a container. The valve comprises a solution outlet and an air inlet opening having an associated filter membrane to filter the air passing into the container. When dispensing the solution, force applied to the container causes the solution outlet to open and prevents access of the solution to the air inlet opening. When the force is relieved, a partial vacuum is formed in the container which causes the solution outlet to close. Air is then drawn into the container via the air inlet opening and through the filter membrane.

Abstract: An electronic apparatus for counting and recording a number of drops of fluid. The preferred embodiment of the invention is configured as a molded receptacle housing for receiving a commercially available eyedrop bottle in which the cap has been replaced by the housing. The invention includes a detection device that detects the separation of drops from a fluid supply bottle, and counts and records the number of such drops in a preset time period. Optionally, a real-time clock time stamps the stream of drop count data so that the absolute time period during which drops are released is also ascertained and recorded. Optionally, a reminder signal or indication is given to a patient as to the dosage and appropriate time for each eyedrop administration, or an alarm is given if over or under medication is occurring. An alternative application is disclosed in which the drop detection and counting features of the invention are used in a feedback loop to control the flow of fluid in a drop metering system.

Abstract: A pressure equalizing liquid addition funnel for a closed system reactor is described. The funnel includes an internal valve stem which seats in the outlet port and extends therethrough and which defines a lumen which extends axially from below the outlet port upwardly to a port in the valve stem in the upper portion of said flask. The valve stem then terminates in a valve cap which is threadedly mounted on the funnel whereby rotation of the cap will cause the valve to engage or disengage a valve seat at the outlet.

Abstract: Delivery of water solutions in metered drops through a metered valve aerosol package by specific selection of propellant and valve actuator allows multidose dispensing of preservative-free product formulations to a selected site of application. A known type of metering valve is used with a water-soluble propellant, which permits dispensing of a single drop of product in the form of a clear drop or an unstable, readily breakable foam. The propellant rapidly evaporates from the drop, while any foam collapses, leaving a clear liquid drop. A preferred propellant is dimethyl ether.

Abstract: The present dispenser device is designed in particular for eye treatment and comprises a pump body including a pump chamber, a piston slidable within the chamber and extended beyond the chamber by a rod pierced by a channel capable of communicating with the chamber, and an endpiece fixed to the rod and having a dispensing orifice in line with the channel of the rod. In addition to the above conventional items, the dispenser has a chamber admission valve which is constituted by co-operation between the enclosure defining the pump chamber and the piston which engages therein or projects therefrom as the case may be. The co-operation is preferably via a sealing lip. This disposition makes it possible to dispense a drop whose volume as determined by the capacity of the chamber is very small. In addition, the piston is returned to its rest position with the admission valve closed by resilient means disposed between the pump body and the endpiece. This guarantees that only drop is dispensed at a time.

Abstract: An electronic apparatus for counting and recording a number of drops of fluid. The preferred embodiment of the invention is configured as a molded receptacle housing for receiving a commercially available eyedrop bottle in which the cap has been replaced by the housing. The invention includes a detection means that detects the separation of drops from a fluid supply bottle, and counts and records the number of such drops in a preset time period. Optionally, a real-time clock time stamps the stream of drop count data so that the absolute time period during which drops are released is also ascertained and recorded. Optionally, a reminder signal or indication is given to a patient as to the dosage and appropriate time for each eyedrop administration, or an alarm is given if over or under medication is occurring. An alternative application is disclosed in which the drop detection and counting features of the invention are used in a feedback loop to control the flow of fluid in a drop metering system.

Abstract: An animal scent dispensing apparatus includes a housing that can be supported in an elevated position above the ground. A reservoir is supported by the housing for containing an animal scent to be dispensed. An outlet releases fluid scent from the reservoir in a drip-like fashion so that it can be dispensed to fall to the ground. A valved vacuum line operable between open and closed flow positions and communicates with the reservoir for maintaining a vacuum on the reservoir when not dispensing fluid therefrom. A timed valving mechanism fence the reservoir at the vacuum line so that fluid in the reservoir will dispense from the outlet and the outlet defines at least in part the dispensing flow rate as a fluid dispensed from the reservoir. The apparatus has particular utility for deer hunting wherein a scent can be dispensed at multiple times during the day for very short time periods of for example a few seconds.

Abstract: An oil distribution system for a heat and pressure fuser includes a metering assembly which gravity feeds oil along an inclined channel to a plurality of reservoirs. The metering assembly has a length which approximates the length of the fuser roll surface to be oiled. Oil is introduced into the inclined channel and fills each of the reservoirs. The reservoirs are fully enclosed save for an oil dispensing orifice located at the bottom of the reservoir. This orifice is small enough to control the rate of oil dispersed onto a primary wick located beneath the reservoir. The reservoirs are spaced in such a way that uniform dispensation of oil is provided. The primary wick receives the oil and feeds it to a fuser roll. A secondary wick helps to control the uniformity of the oil on the fuser roll.

Abstract: An apparatus is provided for forming gas-filled spheres of metal, glass or other material, which produces spheres (12) of uniform size and wall thickness in a relatively simple system. The system includes concentric nozzles, including an inner nozzle (18) through which gas flows and and an outer nozzle (20), which jointly define an annular passageway (50) through which a liquid flows. The flow rates are adjusted so that the gas flows at greater velocity than does the liquid, out of their respective nozzles, e.g. three times as great, in order to produce an extrusion (30) which undergoes axisymmetric oscillations resulting in the pinch off into hollow spheres with very uniform spacing. The system is useful not only where gas-filled spheres are required, but also is useful to accurately control the dispensing of solid, liquid, or gaseous materials.

Abstract: A liquid tank structure for reducing hydrostatic pressure at an outlet thereof. The structure has a liquid container having an outlet at its lower portion, and a capillary member within the liquid container for exerting a force on a liquid therein in a direction opposite to the hydrostatic pressure of the liquid at the outlet for reducing the hydrostatic pressure at the outlet.

Abstract: A container for drop-by-drop dispensing of a fluid substance comprises a bottle having a detachable stopper mounted movably on the neck of the bottle so that, in a stoppering position, discharge ports of the stopper are closed off by the neck of the bottle and in a remote position the discharge ports are open. A flexible discharge end fitting which may be squeezed to actuate dispensing of the fluid substance is a snap fit on the relatively harder stopper. The discharge end fitting is limited in its travel towards the remote position along the neck so that the two part stopper/discharge fitting unit is captive on the neck.

Abstract: An improved drop dispenser for use with a closed compressible container, which dispenser is comprised of a small diameter tubular dispenser member of a resilient plastic material deformed at the free end thereof to provide a normally closed, integral valve-like arrangement, which valve-like arrangement is pressure actuated and partially opens when pressure within the container increases.

Abstract: A method and apparatus for dispensing liquid compositions. The apparatus includes a reservoir for containing the liquid at a low temperature, a metering device for transferring the liquid to a circulating loop at a higher temperature, a heater/mixer for coincidentally heating and mixing the liquid in the loop and means for dispensing the liquid from the loop. The invention is particularly useful for dispensing liquid adhesive and coating compositions, including thermosetting polymers, heat sensitive polymers or plastisols and other dispersed liquid systems. In addition, mixtures of polymeric liquids with other components such as gases, solvents or liquid blowing agents may be employed with uniformity of composition for dispensing foams or atomizable paints.

Abstract: A separatory funnel having a valve stem mounted through its center to accurately open, close, and regulate the flow of liquid from the funnel. The valve stem is provided with a passageway therein for forming a separate channel from the path of liquid flow to permit air to pass through the separatory funnel independently of the liquid flow from the funnel. This air passageway may exit internally of the funnel chamber, or externally thereof. In the external exit version, the valve stem is modified so that the air exit path can be capped and/or connected to another device. The lower end of the valve stem is provided with sealing structure of several types for assuring a tight and positive seal when the valve is closed. Also, the lower end of the valve stem is sandblasted to effect flow of all liquid therealong and tapered to a spherical ball at the very end for collecting and forming liquid droplets for precision liquid flow measurement.

Abstract: A computer controllable water droplet fountain having a plurality of water droplet forming valve assemblies mounted in a constant level water manifold and a base positioned in a vertically spaced relation to said manifold to provide a three dimensional viewing space, a strobe light positioned to illuminate the space, the valve assemblies and strobe light being program controlled to produce various forms of images.

Abstract: A method for pelletizing liquid and viscous products. A body of the liquid or viscous material is enclosed within a chamber having discharge orifices or nozzles at the bottom of the body of liquid. There is a body of gas above the liquid which is subjected alternately to increased and decreased gas pressures so that the pressure on the body of liquid is first above and then below atmospheric pressure. That causes the product to be discharged from the orifices in droplets. The droplets are then solidified to form pellets. A predetermined liquid level is maintained within the chamber. The changes in gas pressure are produced by operating a valve which connects the body of gas in the chamber alternately to a suction line and supply line for gas under pressure.

Abstract: Distinct droplets of a slurry are dispersed by a dropping device consisting of a resilient tube connected to a liquid reservoir so that the liquid flows through the tube, and two valves and a plunger which work in a six-movement cycle on the outer surface of the resilient tube to discharge uniform droplets of liquid at equal drop intervals.