William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 4132334 | Spill and tamper resistant safety closure Disclosed is a single piece integrally formed safety closure for a container including a body portion designed for fluid tight engagement with the neck and finish of a container and a depending portion including a passageway which extends into the contain... | 01/02/1979 |
| 4124149 | Aerosol container with position-sensitive shut-off valve An aerosol container is provided, especially intended for use with compositions containing liquefied flammable propellants, and having a shut-off valve closing off flow through an open manually-operated delivery valve whenever the container is tipped from... | 11/07/1978 |
| 4122981 | Toner dispensing device having reciprocating dispensing plate and agitator A toner dispensing device for use in a developing apparatus of an electrophotographic copying machine. The device includes a toner tank mounted on the developing apparatus, a horizontal slit formed at a lower portion of the toner tank, a toner supplying p... | 10/31/1978 |
| 4121742 | Ladle-rotating turret arrangement A ladle-rotating turret arrangement to be used in a continuous casting plant has a concrete base block with a hole through it, a central column inserted in the hole with play, carrier arms provided on the column, and two annular discs arranged at the hole... | 10/24/1978 |
| 4120426 | Liquid carrier and dispenser apparatus for vehicles Apparatus is disclosed for holding and dispensing hot and cold liquids in a vehicle, including a horizontally disposed cylinder which fits in a holder secured to the vehicle for holding the apparatus, and a filler cap separate and remote from the liquid d... | 10/17/1978 |
| 4119022 | Dispensing head for impregnating meat with a liquid A dispensing head having a plurality of prong-like nozzles is useful for impregnating meat with tenderizing and flavoring liquids. It may be fitted onto a pressure dispenser of the conventional type containing a bag to hold the liquid, a gas pressure spac... | 10/10/1978 |
| 4117958 | Vapor tap valve for aerosol containers used with flammable propellants A vapor tap valve for aerosol containers is provided, for use with aerosol compositions containing liquefied flammable propellants, inhibiting delivery of flammable liquid propellant when the valve is opened in any orientation of the aerosol container, co... | 10/03/1978 |
| 4118311 | Tomato harvesting sorting system A tomato harvester sorting system. Tomatoes from a rear cross-conveyor are caried forwardly by a pre-sorting conveyor where workers remove vegetative trash. An electro-mechanical sorter judges the redness or greenness of tomatoes falling from the forward ... | 10/03/1978 |
| 4117959 | Method and single piece annular nozzle to prevent alumina buildup during continuous casting of al-killed steel A pour passage of particular configuration for controlling the flow of aluminum-killed steels, or the like, is described which is effective for preventing the accumulation of oxide inclusions in an orifice opening disposed in the pour passage. The describ... | 10/03/1978 |
| 4116370 | Vapor tap valve for aerosol containers used with flammable propellants A vapor tap valve for aerosol containers is provided, for use with aerosol compositions containing liquefied flammable propellants, inhibiting delivery of flammable liquid propellant when the valve is opened immediately after shaking the aerosol container... | 09/26/1978 |
| 4116372 | Apparatus for applying a desired sealing pressure between refractory plates of sliding nozzle A method and apparatus for applying a sealing pressure to the stationary and sliding refractory plates of a sliding nozzle regulating the flow of molten metal from a vessel containing such molten metal. The method includes the steps of positioning the sli... | 09/26/1978 |
| 4114782 | Pump coupling system for attachment to drum A liquid dispensing system comprising drum members each having an upper end wall in which a female connector member is permanently mounted with a suction tube extending from the female coupling member downwardly a lower end termination adjacent the lower ... | 09/19/1978 |
| 4112994 | Pneumatic tires having low aspect ratio A pneumatic tire, particularly a motorcycle tire, having an aspect ratio of less than 65% and a rounded tread profile, the bias angle of the tire carcass plies being less than 22°.... | 09/12/1978 |
| 4113152 | Adhesive dispensing device A device for dispensing adhesive includes a thin member having a plurality of adhesive dispensing openings extending therethrough. There is a passage for supplying adhesive to said openings. An inflatable tube is positioned in the passage and, when inflat... | 09/12/1978 |
| 4111340 | Pouring spout for threaded neck containers A container and pouring spout assembly is provided in which a pouring spout of resilient material cross threadedly and sealably engages a threaded filler neck. In one embodiment, the pouring spout comprises a rectangular sheet of plastic having first and ... | 09/05/1978 |
| 4111338 | Wall mounted actuator for aerosol can A wall mountable holder to dispense the contents of an aerosol can, the holder comprising an outer casing of two parts dimensioned to contain within it a pressurized can, the two parts of said container being pivotally attached at their upper end and havi... | 09/05/1978 |
| 4109827 | Method of discharging particulate material from a hopper A method of discharging particulate material from a hopper which minimizes vibration and impact loading is disclosed. The method provides a centrally located discharge column having a series of discharge openings extending vertically of an annular mass of... | 08/29/1978 |
| 4109830 | Tiltable trap chamber with stack aiding feature An apparatus is provided for measuring and dispensing material from a conventional container having a mouth. The apparatus comprises a measuring receptacle and compatible threads for securing the receptacle to the container, the securing threads acting to... | 08/29/1978 |
| 4109825 | Rotatable compartmentalized vending apparatus A vending apparatus which includes a rotatable dispensing member having a plurality of separate storage compartments for storing a plurality of items to be dispensed in a predetermined manner is disclosed. A stop member is provided to disable the operatio... | 08/29/1978 |
| 4108339 | Integral nozzle with gas delivery manifold The specification discloses a ceramic nozzle of the submersible type which includes a permeable bore section surrounded by an annular manifold positioned between the bore section and the less permeable integral body of the nozzle. The manifold is employed... | 08/22/1978 |
| 4108219 | Aerosol dispenser with inner container and piston A can for spraying atomized liquids comprising a pair of coaxial cylinders, the outer cylinder forming the sealed can body. The liquid to be atomized and sprayed is contained within the central cylinder above a piston. The central and outer cylinders are ... | 08/22/1978 |
| 4108337 | Quantitative supply apparatus of powder coloring agent The quantitative supply apparatus of powder coloring agent can measure the powder coloring agent through a measuring groove provided on a rotary shaft and supply it directly to the raw material inlet opening of an injection moulding machine. The measuring... | 08/22/1978 |
| 4108338 | Rotary tabletting press with powder feed adjustment valve A rotary tabletting press, including a die table rotatable about an axis, has improved apparatus for feeding powder to the table. The improved feed apparatus includes a rotatably sliding valve at a discharge orifice at the bottom of a powder storage hoppe... | 08/22/1978 |
| 4108336 | Probe for extracting toxic fluids from an hermetically sealed container A method and a probe adapted to be inserted into a socket valve for an hermetically sealed container having confined therein a body of toxic fluid. The probe is characterized by a cylindrical configuration adapted to be telescopically inserted into a tubu... | 08/22/1978 |
| 4106672 | Resealable end closure having plural openings A container includes a fiber tube and a plastic end closure. The end closure is of one piece plastic construction and includes a base having a central opening. A dish shaped dispensing wall covers the central opening and provides a plurality of small disp... | 08/15/1978 |
| 4105147 | Extruder screw valve The invention disclosed herein is an injection molding machine unit having a barrel, with an injection nozzle on one end of the barrel and a screw ram movable in the barrel, a valve member with axially extending grooves in the periphery thereof, supported... | 08/08/1978 |
| 4105139 | Shell for flexible bag having mounting for spout A fluent dispenser comprising an outer shell having one closed end and one open end, a fluent filled flexible plastic bag inserted in the shell through the open end thereof, and a generally planar closure or wall detachably mounted in the open end of the ... | 08/08/1978 |
| 4105146 | Metering dispenser having suck-back through nozzle A metering dispenser for supplying a metered quantity of a viscous liquid comprising a reservoir for a metered quantity of liquid and a piston for expelling the liquid therefrom, first and second sealing rings around the piston preventing inlet of liquid ... | 08/08/1978 |
| 4102476 | Squeeze bottle dispenser with air check valve on cover A squeeze bottle type dispenser has a resiliently collapsible container for the liquid to be dispensed. A cover on the container, said cover means has a flexible resilient central portion flexible outwardly of the cover away from the container. A dispensi... | 07/25/1978 |
| 4101058 | Variable width glass sphere dispenser An apparatus for applying glass spheres or other dry particles at prescribed adjustable widths without wastage of material by gravity feeding such spheres upon a roller assembly comprising a plurality of roller sections selectively engagable for rotation ... | 07/18/1978 |
| 4101055 | Colorant dispenser having time sequence dispensing cycle Disclosed is a machine including a plurality of containers for a variety of paint colorants and a plurality of measuring receptacles, one connected for fluid communication with each of the containers. A cyclic pumping system simultaneously pumps metered v... | 07/18/1978 |
| 4099651 | Closure assembly for collapsible tube dispensers, and the like A closure assembly is provided which is mounted on the end of a collapsible tube or pouch dispenser through which liquid or soft solid substances such as toothpaste, shaving cream, catsup, mustard, shampoo, glue, and the like, may be dispensed. The closur... | 07/11/1978 |
| 4098439 | Attachment for beverage can having rotating closure with flow guide The bottom portion of a cupshaped vessel adapted to fit snugly over the rim of a conventional beverage can is provided with a selectively slotted opening preferably bounded by a sealing rib, the opening being contoured to approximate the usual pull-tab op... | 07/04/1978 |
| 4098433 | Hydraulic system for broadcast spreader A broadcast spreader having one or more spinners driven by hydraulic motors and a material delivery conveyor or auger driven by a hydraulic motor is provided with a hydraulic system including a flow and pressure-compensated variable displacement pump and ... | 07/04/1978 |
| 4096976 | Vessels for transferring liquid metal having a removable insulating lining The permanent refractory lining of a liquid metal transfer vessel is covered with a removable heat-insulation lining formed of inorganic particles embedded in a binder, the particles being sinterable at the temperature of the liquid metal to be introduced... | 06/27/1978 |
| 4094444 | Seed metering device having high friction material on rotating wheel A seed metering device comprising a seed hopper having a base which is in part sealed by two sets of contra-rotated circular rotary members driven about adjacent substantially horizontal axes, one set of the rotary members having the form of Vee-belt pull... | 06/13/1978 |
| 4094445 | High speed beer dispensing method A method is provided for dispensing beer rapidly into a series of containers for mass distribution to consumers at public gatherings such as stadiums, race tracks, etc. The beer is contained in kegs and is supplied to a multi-tap dispenser through a refri... | 06/13/1978 |
| 4094447 | Heater cast for multi-cavity hot runner edge gate This invention relates to an improved heater cast used in multi-cavity hot runner edge gate injection molding. The improved heater cast enables products to be molded of considerably lower heights than was previously the case and as well facilitates the mo... | 06/13/1978 |
| 4093109 | Expansible trough apparatus for use in producing polyurethane foam Disclosed herein is a trough and fall plate particularly adapted for use in producing continuous buns of polyurethane foam which trough and plate are expansible relative to the transverse axis of the plate for forming buns of variable widths. The trough i... | 06/06/1978 |
| 4091971 | Molten metal nozzle having capillary gas feed A shaped refractory body having an elongated passage for the feeding of molten metal. At least one conduit is provided extending from the exterior of said body into communication with the passage for the introduction of a gas thereto. The conduit is reduc... | 05/30/1978 |