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 |
| 8162533 | Mixing method for powder material and liquid material, and mixer A mixer of the present invention includes an outer cylinder into which powder material is loaded, a rotational axis which is located coaxially with the outer cylinder and discharges liquid material while forming the liquid material to fine particles, and a fin which... | 04/24/2012 |
| 7677791 | Rotary residual fuel slurrifier A rotary slurrifier of this invention comprises a pair of spinning discs, which throw a first fluid into a larger mass of second fluid in paired and flow connected impact cavities, within a counter-rotating cavity shell. The first fluid is to be largely insoluble in... | 03/16/2010 |
| 7380978 | Process fluid distribution system for agitating retorts An agitating retort (100) includes an outer shell (102) within which the drum structure (112) is disposed for rotation within the shell while supporting a number of baskets (114) for holding products to be processed within the retort. Pro... | 06/03/2008 |
| 7066187 | Modular treatment plant having horizontal drum machines A machine for treating bulk material of industrial volume parts, having a treatment drum which is arranged with a horizontal axis and can be driven in both directions of rotation around the axis, the treatment drum comprises a permanently open co-axial inlet apertur... | 06/27/2006 |
| 6960361 | Split-pan for panning apparatus A split-pan for a panning apparatus, a panning apparatus incorporating a split-pan, and a method of coating two distinct masses of centers simultaneously with the split-pan are described. The split-pan is formed as a hollow drum, having first and second ends, an int... | 11/01/2005 |
| 6641296 | Method for mixing alginate using a rotatable elliptical bowl A mixer for alginate has a rotatable bowl and one or more nozzles positioned above the opening of the rotatable bowl for injecting water into the bowl. By controlling the injection of water at appropriate locations and at appropriate strengths (i.e., pres... | 11/04/2003 |
| 5603567 | Coaxial cryogenic injection system A vacuum tumble mixer is provided with a hollow drive shaft at one end thereof. The hollow drive shaft provides access by means of a probe to the cylindrical center section of the vacuum tumble mixer in order to inject the ingredients to be mixed, to intr... | 02/18/1997 |
| 5538195 | Device for granulating and coating and baffle device for same The present invention relates to a granulating and coating technique, and more particularly to a technique wherein powder and granules are contained in a drum rotating about a substantially horizontal axis and the rotary drum is rotated for granulation of... | 07/23/1996 |
| 5470146 | Countercurrent drum mixer asphalt plant A drum mixer asphalt plant is provided with a rotatable cylinder 10 in which virgin aggregate, recycle material and liquid asphalt are mixed to produce an asphaltic composition and the hot gas stream for heating and drying the materials flow in countercur... | 11/28/1995 |
| 5197801 | Tumbler A tumbler includes a support frame assembly rotatably mounting a drum assembly for driving by a drive assembly comprising an electric motor drivingly connected to the drum assembly, a battery coupled to the electric motor, and a photovoltaic panel connect... | 03/30/1993 |
| 5073032 | Mixing device for bulk impregnation of particulate matter by a binder A device for mixing particulate matter and liquids comprises a rotatable central shaft passing through a stationary particle feed hopper and supporting a perforated rotatable plate and incorporating a liquid feed conduit terminating at an atomizer, a spra... | 12/17/1991 |
| 5050528 | Rotary drum granulating and coating apparatus A granulating and coating method featuring that a coating liquid and a binder liquid are fed into a rotary drum so as to carry out granulating and coating of a powdery and/or granular material, wherein the coating is performed while a gas is blown out to ... | 09/24/1991 |
| 4806019 | Method and apparatus for mixing two or more components such as immiscible liquids Method and apparatus is disclosed for mixing two or more materials normally considered difficult to evenly and homogeneously intermix such as, for example, viscous fluids. The apparatus is also effectively usable to entrain a gas in a liquid and for ceram... | 02/21/1989 |
| 4514093 | Method and apparatus for delivery of a powder The present invention relates to a method and apparatus for controlling the delivery of insoluble powders, such as metal powders, to a processing station, such as a rotatable drum for impact plating of the powder onto articles. The method includes providi... | 04/30/1985 |
| 4478514 | Vibrating concrete mixer A concrete mixer having a drum, which contains mixing elements, and at least one vibrator for imparting vibrational energy to the material which is to be mixed. The vibrator is drivable by means of the water used to make up the concrete. The water may be ... | 10/23/1984 |
| 4430003 | Apparatus for spraying liquids such as resins and waxes on surfaces of particles To uniformly and economically disperse liquids, via sprays of droplets, on surfaces of particles, a method moving the particles involves their rotary lifting, followed by their free falling, with a spray of droplets originating from a central area of the ... | 02/07/1984 |
| 4325849 | Method for making a slurry containing particulate matter and fibers for a preformed insulation product A method for making a slurry containing particulate matter and fibers for a preformed insulation product comprises mixing dry particulate matter with a binder which is a liquid containing dispersed fibers. An apparatus suitable for practicing the method c... | 04/20/1982 |
| 4323313 | Impregnator system An impregnator system is described for electronically measuring liquid chemicals from a plurality of independent pumping systems into a fertilizer blending tank or the like. A plurality of electrically driven pumps are provided and have their intakes in c... | 04/06/1982 |
| 4300447 | Nut blancher A device and a method for either the continuous or the batchwise removal (blanching) of skins from peanuts and other nut products are provided. The nut blanching device includes a rotatable cylinder containing a structure for introducing at least one jet ... | 11/17/1981 |
| 4244656 | Apparatus for contacting liquids and solids with liquids A continuous liquid/liquid or liquid/solids contactor consists of a rotary contactor having a near horizontal axis. The interior of the drum is divided axially into a number of compartments by spaced discs secured to the drum wall and having openings thro... | 01/13/1981 |
| 4242241 | Method for making a slurry containing particulate matter and fibers for a preformed insulation product A method for making a slurry containing particulate matter and fibers for a preformed insulation product comprises mixing dry particulate matter with a binder which is a liquid containing dispersed fibers. An apparatus suitable for practicing the method c... | 12/30/1980 |
| 4041648 | Tumbling and polishing machine with planetary rotating drums An apparatus for abrasive tumbling or polishing with rotary-driven drums, mounted in a planetary rotational movement on two rotary-driven disks which face one another, the drums being mounted between the disks, the disks being supported by a fixed stand. ... | 08/16/1977 |
| 4010081 | Apparatus for quenching and cooling coke Substantially horizontal rotary drum system for quenching and cooling coke, the drum having an internal helical conveying vane for moving the coke through the drum upon rotation of the drum, the diameter and the length of the drum and the pitch of the hel... | 03/01/1977 |
| 3982259 | Photographic material processing module A photographic material processing module usable alone for all the processing steps in a processing procedure, or with like modules in side-by-side relation, each module performing one or more of the processing steps. Exposed photographic material is moun... | 09/21/1976 |