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ball patent grinding

US7487928B2 Grinding balls and their Google Patents

The present invention relates to grinding balls made of fritted ceramic comprising a compound of alumina silicate (αAl 2 O 3 .βSiO 2 ) and in particular mullite (3Al 2 O 3 .2SiO 2 ), zirconia (ZrO 2 ) and alumina (Al 2 O 3 ).

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US Patent for Grinding balls and their manufacturing

Feb 07, 2005· the grinding balls have a diameter between 0.1 mm and 100 mm, preferably between 0.5 mm and 50 mm, and in particular preferably between 0.5 mm and 10 mm. The present invention further discloses a method for manufacturing grinding balls made of

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US6171179B1 Ball grinding machine Google Patents

A ball grinding machine for grinding ceramic bearing balls and the method thereto employing a non-rotating upper circular plate and a rotating lower circular plate to perform precision grinding of ceramic balls. The grinding mechanism according to the present invention comprises two or more separate concentric fixed rings, adjacent annular recesses into the lower surface of the upper circular

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US2323120A Alloy for grinding balls Google Patents

US2323120A US452884A US45288442A US2323120A US 2323120 A US2323120 A US 2323120A US 452884 A US452884 A US 452884A US 45288442 A US45288442 A US 45288442A US 2323120 A US2323120 A US 2323120A Authority US United States Prior art keywords alloy carbon chromium grinding columbium Prior art date 1942-07-30 Legal status (The legal status is an assumption and is

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US9333507B2 Automatic ball charging Google Patents

The present invention is directed toward a material handling, processing and milling facility which utilizes ball milling as a means for material grinding, mixing or mechanical alloying of materials. The system includes an automatic ball charging, agitating and indexing assembly, constructed and arranged to deagglomerate and directly distribute a plurality of grinding balls to the facility.

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WO2014113279A1 Automatic ball charging Google Patents

The present invention is directed toward a material handling, processing and milling facility which utilizes ball milling as a means for material grinding, mixing or mechanical alloying of materials. The system includes an automatic ball charging, agitating and indexing assembly (200), constructed and arranged to deagglomerate and directly distribute a plurality of grinding balls (606) to the

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US3928949A Hollow body grinding materials Google Patents

US3928949A US46580274A US3928949A US 3928949 A US3928949 A US 3928949A US 46580274 A US46580274 A US 46580274A US 3928949 A US3928949 A US 3928949A Authority US United States Prior art keywords grinding hollow bodies material hollow walls Prior art date 1973-09-26 Legal status (The legal status is an assumption and is not a legal conclusion.

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US7892073B1 Bowling ball abrader and Google Patents

A bowling ball abrader and polisher utilizes cooperative rotational inter-engagement between a cup-shaped abrading an polishing tool and a non-motorized rotating ball holder assembly to obtain even, concentric abrasion patterns on a bowling ball surface. Upon placement of a bowling ball in a ball cradling surface formed in the rotating ball holder, application of the rotating abrading and

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Grinding-wheel Dressing Patents and Patent Applications

Grinding-wheel Dressing Patents (Class 125/11.01) Indexing of tool point (Class 125/11.02) Rotary or crush dressing (Class 125/11.03) Contouring of grinding wheel face (Class 125/11.04) Abstract: A grinding apparatus for grinding a spline ball groove on a workpiece comprises a rod-shaped grindstone, having a distal end portion with a curved

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US Patent Application for MULTIPLE-STAGE GRINDING CIRCUIT

Embodiments include systems and methods for multiple-stage grinding of crushed ore material. A method may comprise separating, in a first stage of separating, crushed ore material by size into a first fines stream and a first coarse stream; grinding the first coarse stream in a second stage of grinding; feeding the product of the second stage of grinding back to the step of separating; feeding

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Friedrich Fischer Wikipedia

Thus, the worldwide success story of the ball bearing begins in Schweinfurt. Later, 1883 is officially declared the year in which the company was founded. 1890 On July 17, Fischer received the patent for his ball grinding machine from the Kaiserliches Patentamt.

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Grinding Mill Ball Patent

Grinding Mill Ball Patent Abstract. Planetary Ball Mill PM 200 RETSCH short .Planetary Ball Mills are used wherever the highest degree of fineness is required.Apart from the classical mixing and size reduction processes, the mills also meet all the technical requirements for colloidal grinding and have the energy input necessary for mechanical alloying processes.The extremely high

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Grinding Mill Ball Patent Crispy Fries

Cement ball mill_Cement epc-JiangSu Lvssn. Cement ball mill in the process of production and processing has high grinding efficiency, large output, and compared with the general ball mill, this ball mill can save more energy consumption.Our company can design and manufacture a special cement ball mill to meet the actual needs of users according to the output and fineness requirements of users.

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grinding mill ball patent in germany tennishalle-heissen.de

grinding mill ball patent Friedrich Fischer Wikipedia Friedrich Fischer March 19 1849 October 2 1899 from Schweinfurt Germany is considered the father of the modern ball bearing having invented the process for milling standard bearings in 1883

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Method of centreless ball grinding

Grinding wheel 1 has unloading groove 2. Ball is ground in discrete steps by interrupting contact between balls and grinding sections of wheel 1 when ball passes by the zone of screw groove 2. EFFECT: higher surface quality at invariable efficiency due to grinding over ball

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US Patent for Grinding machine Patent (Patent # 3,952,456

1. Apparatus for performing processing operations in effecting the grinding of the teeth of a rotatable cutting tool including, in combination, a frame construction, a reciprocable ram mounted by the frame construction, means for reciprocating the ram including a driving shaft having a spiral recess, ball nut means mounted on the spirally recessed portion of the shaft for operative connection

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ore grinding mill patent

grinding mill ball patent. The grinding mill may be any one of a Sag, Ag, Ball or Rod mill. Evolution of Laboratory Mills and Grinders Lab Manager Apr 7, 2011 In 1961, Fritsch registered its first patent for a laboratory planetary mill with cantilevered grinding bowls. Get Price

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Grinding Mill Ball Millgrinding Mill Ball Patent

Patent US740879 Ball grinding-mill. grinding mill ball patent. Patent US2558327 Grinding ball for ball mills Google PatentenJune 26,195] D. WESTON GRINDING BALL FOR BALL MILLS Filed April 2, 1947 RE R OW O 5 T n,

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grinding mill ball patent Mobile Crusher,mobile crusher

US4185785A Grinding mill diaphragm Google Patents. This invention is directed to an improved rotary grinding mill such as a ball mill, rod mill or an autogenous mill, having an improved arrangement wherein the usual "overflow" or "grate discharge" arrangements are dispensed with in favor of an annular array of lifter segments providing a diaphragm having a radial clearance from the mill shell

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Patents Assigned to Netzsch-Feinmahltechnik GmbH Justia

Justia Patents Patents and Patent Application Resources. Abstract: A preliminary size reduction device for a ball mill or agitator ball mill and a ball mill with a preliminary size reduction device, wherein the preliminary size reduction device is disposed between a grinding stock inlet of the ball mill or agitator ball mill and a grinding chamber and includes a first size reduction

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US Patent for Method for the production of carbonates by

1. In a method for the production of a carbonate product, with a desired high BET/N.sub.2 specific surface area of at least 20 m.sup.2 /g which includes preparing a suspension including the product and wet grinding the product in the suspension in an agitating ball mill, the improvement comprising repeating the step of wet grinding of the entire product in the suspension leaving the mill until

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Grind Molycop

Balls for use in mineral processing ball milling operations are designed for maximum abrasion resistance using high carbon content and high hardness levels. PRODUCT SPECIFICATIONS SIZE: Molycop supplies cast high chrome grinding balls for use in ball milling and regrind applications in nominal sizes from 15 mm to 90 mm in diameter.

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CEMENT GRINDING BALLS Importer and Supplier in Morbi

The high-purity and ultra-fine a-alumina powder produced by Jingang Microcrystalline Wear-resistant Aluminum Oxide is the main raw material, and is prepared by powder (slurry and mud)—dry pressing, isostatic pressing (dry method, wet method), etc. A molding method to produce semi-finished products of alumina ceramic products tunnel kiln firing and other dozens of King Kong’s unique

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US Patent Application for MULTIPLE-STAGE GRINDING CIRCUIT

Embodiments include systems and methods for multiple-stage grinding of crushed ore material. A method may comprise separating, in a first stage of separating, crushed ore material by size into a first fines stream and a first coarse stream; grinding the first coarse stream in a second stage of grinding; feeding the product of the second stage of grinding back to the step of separating; feeding

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