Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 6494393 | Mill for grinding loose materials A mill for grinding loose materials, which comprises a closed container provided with at least one opening for introducing and removing the materials and has, at its two poles, a first coupling shaft and a second coupling shaft articulated thereto, a fixe... | 12/17/2002 |
| 6471148 | Method and apparatus for crushing glass A glass smasher is provided of the type for placement of glass articles for reduction to a particle size for reduced volumetric disposal and/or recycling purposes. Recycling may include reforming into another glass product or use as an aggregate. The glas... | 10/29/2002 |
| 6258930 | Process and apparatus for breaking down biological material The use of multi-well blocks with more than 10 wells is suggested for breaking down biological samples in a ball mill, wherein the process which is to be carried out provides that the biological sample, disposed in a multi-well block with more than 10 wel... | 07/10/2001 |
| 6019300 | Apparatus for the high energy and/or superfine milling of solids and method of operating same A high-energy and superfine attritor for solids has inlet and outer fittings open tangentially into a generally cylindrical milling vessel containing a charge of loose milling bodies. The gas flow through the vessel can alternate in velocity and the rotor... | 02/01/2000 |
| 5791569 | Crushing apparatus A crushing apparatus for processing of materials in bulk includes a cylindrical separator disposed rotatably in a crushing vessel almost coaxially therewith, wherein the separator partition on interior space of the vessel into an inner and an outer chambe... | 08/11/1998 |
| 5597126 | Stirred ball mill The continuously operating stirred ball mill used for finely and very finely milling a material has a cylindrical or conical grinding chamber which has a horizontal axis and in which a stirrer rotatable about the chamber axis and intended for moving grind... | 01/28/1997 |
| 5524830 | Continuous dispersing apparatus A continuous dispersing apparatus in which stirring vanes in a vessel disperse pulverizing media, wherein mill base containing coarse pigment particles is prevented from being discharged. The apparatus includes a vessel for containing pulverizing media wi... | 06/11/1996 |
| 5503337 | Process for dispersing, blending or homogenizing mixtures, and a device for executing this process In a process for dispersing, blending or homogenizing of solid/liquid and/or liquid/liquid mixtures, the dispersion or emulsion to be homogenized is introduced into a rotating grinding chamber (5) which is at least partially filled with grinding bodies an... | 04/02/1996 |
| 5312055 | Method for the operation of a stirring ball mill and a stirring ball mill for the practice of the method The invention relates to a method of operating a stirring ball mill which has a preferably cylindrical, rotating barrel provided with an inlet at one end and an outlet at the other end, in which a stirring shaft provided with stirring means rotates. This ... | 05/17/1994 |
| 5193754 | Mill for triturating and breaking up solids predispersed in liquids Mill for triturating and breaking up solids predispersed in liquids, whose stator consists of two hollow truncated cone-shaped halves connectable to each other by their open major bases provided with flanges, with their minor bases closed and provided wit... | 03/16/1993 |
| 5114084 | Crushing machine The present invention is a crushing machine including a rotatable housing having an inlet port and a discharge port and including an independent crushing means inside the housing. Support rings each of which is at least 1.8 times larger than the housing, ... | 05/19/1992 |
| 5062601 | Mill screen apparatus Apparatus for reducing and sizing particle material that is readily susceptible to efficiency enhancement with vibratory exciters. The apparatus includes a rotary drum particle size reductino device having a substantially imperforate drum, and a rotary sc... | 11/05/1991 |
| 4979686 | High speed dry grinder A continuous dry grinder for grinding particulate material with the assistance of grinding elements includes a comminuting vessel which contains the grinding elements and receives material to be ground through an upper feed chute and discharges the ground... | 12/25/1990 |
| 4887773 | Rotary mill with charging system A rotary-type mill is provided with a system for charging powder to a mill under seal from atmospheric air, the system being comprised of a sealable loading conduit and a valve assembly. The valve assembly, which controls the opening to the mill, is dispo... | 12/19/1989 |
| 4801100 | System for discharging ball mills A rotary batch-type grinding mill for processing powder is provided with an improved system for discharging material under seal from the atmosphere. The discharge system comprises a sealable collection chute having a banana-like configuration secured on t... | 01/31/1989 |
| 4735366 | Annular gap-type mill An annular gap-type mill for continuously pulverizing in particular hard mineral substances comprises a grinding container (15) which accommodates an axially symmetrical inner body (13) whose outer surface defines with the inner surface of the grinding co... | 04/05/1988 |
| 4715547 | Ball mill A drive body (4) which is rotationally driven via a shaft (6) projects into a fixed housing (1) closed by a cover (2). The annular-gap-shaped grinding chamber (M) formed between the housing (1) and the drive body (4) is partially filled with grinding ball... | 12/29/1987 |
| 4705222 | Multipurpose mixer A multipurpose mixer useful for performing horizontal and vertical mixing operations with a single apparatus. Mixing element assemblies are replaceable by removal of a first end of a drum. The mixing operations are performed by rotation of an axially disp... | 11/10/1987 |
| 4697747 | Tube mill A gas swept tube mill has a rotary shell (1) supported on a bearing (5) by a slide ring (3), which is reinforced by a stiffening web plate (4). Ground material and gas pass out of the mill shell through a sieve plate (10) and openings (8) in a frustoconic... | 10/06/1987 |
| 4679736 | Rotary mill and a method of charging the mill A rotary mill is provided with an improved loading means for charging material to the mill. The loading means is particularly adaptable for charging a batch-type rotary mill in a protective environment when, as part of a loading assembly of this invention... | 07/14/1987 |
| 4673134 | Agitating mill, particularly agitating ball mill An agitating mill, particularly an agitating ball mill, comprising a housing having an inlet for material to be ground and for air, an outlet for fines and air, and at least one horizontal agitator shaft which is provided with agitating members. The outle... | 06/16/1987 |
| 4664321 | Shell structure of heavy-load type rod mill A shell structure of a heavy-load type rod mill including a barrel having an outlet port and with a plate thickness of t1, and a pair of trunnions having journals integrally formed thereon and with a plate thickness of t2, which trun... | 05/12/1987 |
| 4645133 | Liner for the outlet port of a rod mill A liner for the outlet port of a rod mill including a cylindrical body provided on the peripheral edge of an opening of the liner and projecting outwardly through the outlet port to prevent a rod from exiting the liner. The projecting length of the cylind... | 02/24/1987 |
| 4603814 | System for discharging rotary mills A batch-type rotary grinding mill operable under seal to the atmosphere is provided with a discharge system which permits discharge of material from the mill under seal and without disturbing the seal in the mill. The discharge system comprises at least o... | 08/05/1986 |
| 4562970 | Apparatus for opening and closing the outlet aperture of a processing machine A closure member (11) for opening and closing an outlet orifice (30) in a stationary cover (32) of a drum (1) drivable in rotation in a processing machine, in which the material being treated is conveyed upwards towards the outlet aperture, which is provi... | 01/07/1986 |
| 4304362 | Ball mill A ball mill having a housing formed with at least one inner conically cross-sectioned annular wall, in which a displacement body having a conically cross-sectioned annular outer surface is mounted. The housing and displacement body are relatively rotatabl... | 12/08/1981 |
