Other

R&d Technology, Inc.

Waste Recovery, Inc.

Bandag Incorporated

Rouse Holdings, Inc.

Michael W Rouse

Victor M Deeb

Robert L Thelen

Morgan L White

John C Byrne

Lowell C Sundermann

Magdy Abdelrahman

John Morison

A portably blower fan assembly is provided that may be configured to be removably attached to a golf cart. In some embodiments, the present invention may provide for a battery pack element configured to power a blower fan, which in some embodiments may be a squirrel cage blower fan. The present invention may also provide for one or more clamps configured to removably secure the blower fan in position along a golf cart's frame.

Portable blower fan assembly

Elastomer reclaiming composition and method

The present invention relates to methods for predispersing additives used in a compounding process, as well as to predispersed particles. More particularly, the present invention relates to methods for predispersing, particularly ground elastomers which are used as compounding ingredients for many applications, especially for the production of rubber or plastic materials such as tires.

Method for predispersing compounding ingredients

The present invention relates to a method of reducing particle size by the use of a supercritical gas, such as carbon dioxide or a refrigerant. The material is swollen by the supercritical gas at a high pressure. After the material has been allowed to swell under a high pressure, the pressure is rapidly dropped. When the external pressure is rapidly dropped, the material explodes as the supercritical gas absorbed into the material rapidly expands outward.

Particle size reduction using supercritical materials

The present invention relates to a method of reducing particle size by the use of a supercritical fluid, generally carbon dioxide. The material is swollen by the supercritical carbon dioxide at a high pressure. After the material has been allowed to swell under a high pressure, the pressure is rapidly dropped. When the external pressure is rapidly dropped, the material explodes as the supercritical gas absorbed into the material rapidly expands outward.

Method of reducing material size

A comminuting apparatus for reducing the size of particles, having a frame providing an internal perimeter and having a shape; a stone having a grinding surface for grinding a material and providing a perimeter having a shape corresponding to the shape of the perimeter of the frame and configured to be at least partially surrounded by the frame; wherein when the frame is rotated the perimeter of the frame is configured to coact with the perimeter of the stone such that the stone is rotated at substantially the same rate as the frame.

Stone mounting system

Ground elastomer and method

Grinding stones for rubber comminuting machines are segmented and are applied to backing plates using adhesives. Greater stone life is realized when compared to grinding devices which use mechanical clamps to hold the stones against the plate, and less breakage is encountered using segmented stones than similarly shaped unitary stones known to the art. In the most preferred embodiment, the area between adjacent ends of the stone segments are filled with the same adhesive used to adhere the stones to the backing plates.

Grinding devices for rubber comminuting machines

A grinding stone useful for a variety of comminuting applications, but especially useful for comminuting of rubber particles, comprises a cured mixture of a grit material (such as silicon carbide), an aqueous emulsion of an organic polymeric binding material, (such as an epoxy emulsion), a wetting agent, such as DAXAD&trade;, a surfactant commercially available from the Hampshire Corporation of Lexington, Mass., and an inorganic binding material (preferably portland cement). The grinding stones can be prepared at room temperature, using readily available equipment, and at a greatly reduced cost when compared to current grinding stones prepared from silicon carbide and a vitrified ceramic binder. The stones of the present invention may be molded to a metal support plate, resulting in further process efficiencies and reduced stone manufacture and replacement costs.

Grinding stones

An improved apparatus for conveying solid particulate material which includes a generally flexible receptacle fixedly situated within a frame. The receptacle has a top, a bottom, at least one wall defining an interior and a longitudinal axis perpendicular with the top and bottom. The improvement comprises a dump structure at the bottom comprising a dump aperture, a first flap, and a second flap. The first flap has a first connection along a first flap width with the wall and with the frame adjacent to the dump aperture, extends a first length from the first connection, and is swingable about the first connection from a first position blocking the dump aperture toward an open position. The second flap has a second connection along a second width with the wall and with the frame adjacent to the dump aperture and is swingable about the second connection from a closed position blocking the dump aperture toward an open position. The dump structure further comprises at least one side flap being connected with the wall adjacent to the dump aperture intermediate the first flap and the second flap. Each side flap has a third connection along a third width with the wall and a fourth connection with the first flap along the first length. A first bias member urges the second flap toward the closed position. Second bias members urge each side flap toward the interior.

Apparatus for conveying a solid particular material

A comminuting apparatus for rubber has two vertically mounted opposing facing grinding stones of large size having hollow centers. Interposed between these two stones, both of which, as stators, are fixed and do not rotate, is a single rotor having double-sided opposed abrasive grinding stone faces, mounted for rotation but floating laterally or horizontally in position between the two opposed fixed stones. The spacing between the opposed sets of grinding stones is set by increasing or decreasing the spacing between the outer most stator and the fixed inner stator. So long as the rotor rotates for grinding, the floating center stones will position themselves equally between the two stators so as to equalize the dynamic slurry pressure imposed during the grinding process upon the faces of the stones.

Rubber comminuting apparatus

A rubber modified asphalt for use as a paving compound is formed by reacting very fine ground particulate rubber with paving grade asphalt and mixing the combination at between 300 and 400 degrees F. The resulting mixture reacts fully within 25 minutes or less to form a freely pouring mixture; the reacted mixture can be held at normal asphalt working temperatures for at least 96 hours without degradation.

Rubber asphalt mix

A process and apparatus for continuous batch operation for producing an elastomeric asphaltic compound of rubber and asphalt for paving purposes comprising an essentially cylindrical mixing tank containing rotary internal agitators, preferably at three levels within the tank. The apparatus is equipped with a asphalt oil pump, which flows asphalt oil through a pre-heater into the mixing tanks, and with a separate spiral or screw conveyor for loading through the top of the tank a continuous supply of fine rubber at a controllable feed rate. The entire tank is suspended upon a frame supported by load cells so as to provide a continuing measurement of the total weight of the asphalt load and of the added rubber. The temperature of the asphalt oil raised by the pre-heater until substantially all the asphalt oil reacts with the rubber in the time required to flow the mixture through the stirring tanks, providing a continuous flow process for providing paving grade asphalt rubber mixtures.

Modular asphaltic paving rubber blending unit and method

An extremely efficient reduction of ten mesh feedstock to minus 80 mesh fine elastomeric rubber product may be obtained by interconnecting two sequential grinding mills. The first mill is fed a feedstock slurry reaching ten mesh particle elastomers in a transport fluid such as water. This mill is set to produce a minus 30 to 40 mesh in a single pass, preferably by use of a relatively coarse grinding stone producing a relatively high through put. Water or transport fluid is then added to the thirty mesh output of the first state to bring it back to a transportable slurry which is then fed to a second grinding stage set to produce an average minus 80 mesh particle. This can be produced best by a finer grit grindstone and concomitant advantages will occur due to the uniformity of the feedstock and the lack of large particles in achieving a higher through put.

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Vicksburg, MS, United States of America

Michael W Rouse