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| Number | Title | Issue Date |
| 4738377 | Method and apparatus for controlling rate of application of fertilizer A ground penetrating radar unit is scanned over the surface of a field, and provides a signal representative of the variation in the depth of soil along the scanning path. The signal is used to control the rate of application of fertilizer to the soil.... | 04/19/1988 |
| 4733798 | Method and apparatus for controlling the concentration of a chemical solution The invention includes a method and apparatus for controlling the concentration of wash water in a ware washing machine. A preferred ware washing machine (10) includes a reservoir (11) for holding wash water, a normally closed valve (17) for directing cle... | 03/29/1988 |
| 4722372 | Electrically operated dispensing apparatus and disposable container useable therewith Electrical batteries are integrated with a disposable container of flowable material for powering a dispensing apparatus. The disposable container includes a deformable chamber for containing a predetermined quantity of material to be dispensed, and an el... | 02/02/1988 |
| 4694409 | Microprocessor based air inflation control system A microprocessor based system for monitoring the air pressure within an inflatable device and controlling the supplying of air to or venting of air from the device, as needed. A microprocessor based system controller includes controls for setting a desire... | 09/15/1987 |
| 4690305 | Solid block chemical dispenser for cleaning systems A solid block chemical dispenser for cleaning systems. A substantially horizontal support screen within a housing retainably supports a solid block of wash chemical thereabove. The support screen divides the housing into an upper cylindrical storage porti... | 09/01/1987 |
| 4678100 | Variable flow rate dispensing valve assembly A material dispensing valve finding particular application in the robotic dispensing of sealants, adhesives, etc. in a desired pattern on a workpiece. The dispensing valve comprises a unique actuating arrangement wherein back to back pancake cylinders are... | 07/07/1987 |
| 4658986 | Pressure-monitoring system A pressure-monitoring system for detecting pressure between a fuel pump in a fuel storage tank and a fuel dispenser in automotive fuel service stations. The pressure-monitoring system utilizes a pressure-sensitive switch interconnected in the dispensers. ... | 04/21/1987 |
| 4658987 | No pressure shut off for automatic fuel nozzle valve This invention adds a fuel pressure sensitive piston at a location adjacent to the automatic shut off mechanism of a fuel dispensing nozzle. A lever responsive to the reciprocal movements of the piston biases against the diaphragm of the shut off mechanis... | 04/21/1987 |
| 4645094 | Photo-electric controlled dispenser A fluid dispenser for dispensing liquid detergents, soaps and germicides. A pressure plate imparts a squeezing force to a flexible reservoir containing the liquid material to force the material therefrom. A battery operated photoelectric device is positio... | 02/24/1987 |
| 4638924 | Self mixing sprayer A sprayer mixes water and concentrate on an "as-used" basis. A preselected amount of concentrate is dispensed into a mix tank for each reciprocation of a proportioning pump set. The amount of concentrate dispensed is selected by varying the pump set strok... | 01/27/1987 |
| 4635832 | Method of, and an arrangement for casting metal melt In a method of casting a metal melt from a metallurgical vessel, in which the metal melt is covered by a slag layer, into another metallurgical vessel, the metal melt is guided through a casting tube, which covers the casting jet between the vessels. In o... | 01/13/1987 |
| 4632275 | Palatability stabilizer The present invention relates to a palatability stabilizer for maintaining properly carbonated water in an electrically powered postmix fountain drink dispensing system when a supply of pressurized carbon dioxide is depleted. A carbon dioxide pressure sen... | 12/30/1986 |
| 4630753 | Device for dispensing doses of liquid A liquid dispensing device for an automatic chemical analyzer or for other chemical apparatus. A dispensing tank is located inside a filling bulb. The dispensing tank has an inlet opening and becomes narrower above the inlet opening to form a vent. The di... | 12/23/1986 |
| 4623008 | Automatic dispensing system A system for automatically dispensing stock solutions is disclosed, comprising a dispenser, pipette keeping and washing units and a control unit. The respective pipette keeping and washing units have different types of pipettes. First, the control unit se... | 11/18/1986 |
| 4613059 | Pressure pulse masking circuit for a pressure monitor in a dispensing system A pressure monitoring system monitors the pressure of hot melt adhesive in a dispenser in an adhesive dispensing system. The dispenser includes a valve and the dispensing system further includes a controller for opening and closing the valve for dispensin... | 09/23/1986 |
| 4570822 | Computer operated filling system A liquid filling machine has a plurality of discharge nozzles for simultaneously filling a plurality of containers. Each nozzle is connected to a manifold and has a restriction. A discreet pressure sensor is connected to each nozzle upstream from its rest... | 02/18/1986 |
| 4567924 | Aircraft under-wing fueling nozzle system A modular nozzle system for refueling aircraft fuel tanks includes a nozzle valve linkage mechanism which permits the valve body to have a shorter length than previous designs. The nozzle may include a mechanical fuse for releasing the connection between ... | 02/04/1986 |
| 4538221 | Apparatus and method for mixing a plurality of substances A portable apparatus for controlling the production of a mixture of a fluid and a plurality of additives utilizes a unified control panel having all of the necessary controls compactly contained in a single housing for providing both automatic and manual ... | 08/27/1985 |
| 4538222 | Apparatus and method for mixing a plurality of substances A self-contained portable unit for producing a mixture of substances in response to two separate flows includes a portable trailer upon which a holding tank is mounted. Various additive channels are maintained on the trailer for introducing additives, at ... | 08/27/1985 |
| 4535914 | Automatic larvicide dispenser An automatic larvicide dispensing apparatus which is actuated by weather conditions. A container for holding liquid larvicide has a sealed cylinder disposed therein and a piston reciprocally disposed within such cylinder. This piston is biased to one posi... | 08/20/1985 |
| 4527600 | Compressed natural gas dispensing system A system and method for dispensing compressed gas from a storage tank is disclosed in which the temperature and pressure in the tank is measured before and after the dispensing cycle and electric signals representative of these values are applied to a pro... | 07/09/1985 |
| 4527245 | Commodity handling system An apparatus for blending commodities in a commodity handling system which includes containers (46) for holding the various commodities, the containers (46) having discharge means for enabling commodities to be discharged from the containers, and conveyin... | 07/02/1985 |
| 4515292 | Digital implementation of toner concentration sensing apparatus A toner concentration sensor senses the concentration of toner in the toner system of an electro-photographic printer or copier. A novel circuit improves the toner concentration sensor. The novel circuit is composed of a resonant circuit, a frequency sour... | 05/07/1985 |
| 4503994 | Fiber optic fuel shutoff system An automatic fuel shutoff system for preventing fuel flow into a tank being filled when the level of fuel in the tank reaches a predetermined level. This system stops fuel flow when the passage of light from a light transmitter to a light receiver is bloc... | 03/12/1985 |
| 4498606 | Emergency fuel flow shut-off device A device for use in automatically shutting off the flow of fuel from a dispenser is disclosed. The device comprises a servo valve connected to a fuel delivery hose through a conduit having a weakened wall section adjacent the valve. Power is supplied to t... | 02/12/1985 |
| 4493435 | Liquid dispensing system and automatic selector therefor A dispensing system comprising first and second collapsible storage containers, a pump and a pressure responsive selector coupled to both of the storage containers and to the intake side of the pump. The selector includes a valve movable between a first p... | 01/15/1985 |
| 4485736 | Ink-dispensing system and method for silk-screen printing having squeegee stroke movement counter Disclosed is a system for dispensing ink to a silk screen for printing thereby. A squeegee is reciprocated relative to the silk screen and each cycle of movement provides an air pulse to a counter. The counted pulses are compared with a preset number of p... | 12/04/1984 |
| 4475668 | Metering feeder for liquid An apparatus wherein liquid may be continuously fed at a constant small rate includes a liquid reservoir displaceable up and down and provided at a lower portion thereof with a liquid delivery orifice block, a small liquid dropping tank displaceably suppo... | 10/09/1984 |
| 4475307 | Apparatus for dispensing a liquid The invention relates to an apparatus for dispensing liquid to plants, the apparatus comprising a container for housing the plants, a reservoir for the liquid, and a conduit connecting the interior of the container to the interior of the reservoir, the re... | 10/09/1984 |
| 4462511 | Dissolving and dispensing apparatus A funnel shaped conveyor receives containers of powdered materials and is coupled to the containers. A screen support member within the funnel receives granules from the container and supports the same above a spray nozzle. The nozzle directs a spray of l... | 07/31/1984 |
| 4410109 | Leak detection system and check valve for use therein The leak detection system includes a leak detection sensor for sensing the pressure of fluid product in a supply line and holding the flow rate of the fluid through the supply line to a value below a maximum when the sensed pressure is below a predetermin... | 10/18/1983 |
| 4397642 | Motor driven occlusion controller for liquid infusion and the like A parenteral solution administration system having a conduit for communication with a source of parenteral solution, a drip chamber carried by the conduit, drop detector circuit for detecting drops falling through the drip chamber and flow control circuit... | 08/09/1983 |
| 4394790 | Fiber feeding apparatus with controlled air flow A chute feed having a chute formed in part by an upper perforated wall portion and a lower oscillating wall portion. Two compartments are formed adjacent the chute and are separated therefrom by the upper and lower wall portions, and a divider wall is dis... | 07/26/1983 |
| 4379515 | Automatic dispenser for rinse water additive The object of the invention is to provide a free body dispenser for a washing machine wherein the dispenser employs premeasured and preloaded laundry additive units. It is not necessary to measure out additive from a storage bottle. Another object is to p... | 04/12/1983 |
| 4367827 | Antitheft mechanism for gasoline pump An improved self-service gasoline pump is designed to insure payment for the fuel which has been delivered by the pump. The pump includes a switch mechanism which must be operated by the ignition key of an automobile prior to operation of the pump. Upon i... | 01/11/1983 |
| 4343336 | Liquid dispensing device A liquid dispensing device in the form of a so-called piston valve for use with a gasoline pump comprises a valve housing having an inlet connected to the pump and an outlet; a valve for controlling the flow of liquid from the inlet to the outlet; a disch... | 08/10/1982 |
| 4338959 | Device to automatically add a controlled amount of corrosion inhibitor in an engine cooling system Means for adding corrosion inhibitor to an engine cooling system utilizing a corrosion detector in contact with the circulating coolant and which is in an electronic circuit to activate a control valve which controls the feeding of corrosion inhibitor sol... | 07/13/1982 |
| 4300202 | Method and apparatus for weight determination of the amount of a substance possessing fluidity quality A method of weight determination of the amount of a substance possessing fluidity quality, carried out in a continuous flow of the substance, which method comprises the steps as follows: periodically loading a number of reservoirs with the substance being... | 11/10/1981 |
| 4289256 | Tramlining device for seed drill A tramlining device is provided for a seed drill having shutters associated with respective seed spouts and controlled by individual fluid pressure operated actuators for improved flexibility in selecting the tramline spacing. The actuators are preferably... | 09/15/1981 |
| 4280251 | Feed chimney for a textile machine supplied with textile fiber tufts A uniform web of fiber tufts is delivered to a textile fiber processing machine such as a carding machine by a feed chimney provided with a perforated wall. The fiber tufts are impelled into the upper portion of the chimney by means of a fan, a uniform we... | 07/28/1981 |
