A cryogenic grinding system, method, and apparatus for processing a sample. The system includes a cryogen source, a containment vessel for containing the sample and the cryogen, a blade for grinding the sample, and a controller. The controller controls at least one of: a quantity of cryogen introduced into the container; a grinding duration of the at least one blade; or a grinding speed of the at least one blade based on at least one of: a user input via a grinding system input, a mass of the sample placed in the containment vessel; or a temperature within the containment vessel.
B02C 18/08 - Disintegrating by knives or other cutting or tearing members which chop material into fragmentsMincing machines or similar apparatus using worms or the like with rotating knives within vertical containers
B02C 19/18 - Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
B02C 23/18 - Adding fluid, other than for crushing or disintegrating by fluid energy
B02C 25/00 - Control arrangements specially adapted for crushing or disintegrating
2.
CRYOGENIC GRINDING SYSTEM, APPARATUS, AND METHODS OF USE THEREOF
A cryogenic grinding system, method, and apparatus for processing a sample. The system includes a cryogen source, a containment vessel for containing the sample and the cryogen, a blade for grinding the sample, and a controller. The controller controls at least one of: a quantity of cryogen introduced into the container; a grinding duration of the at least one blade; or a grinding speed of the at least one blade based on at least one of: a user input via a grinding system input, a mass of the sample placed in the containment vessel; or a temperature within the containment vessel.
A clamping system for a planetary ball mill includes a base, a clamping lid, including a clamping mechanism configured to secure a grinding container between the base and the clamping mechanism, and a lid configured to pivot with respect to the base from a closed position to an open position, wherein in the open position the grinding container is removable from the clamping system. The system further includes a rotatable arm configured to pivot between a first and second position, wherein in the first position the rotatable arm prevents the clamping lid from rotation to the open position. The clamping system also includes a balancing system having a first counterweight, with a linkage system being coupled between the first counterweight and a carrier plate of the planetary ball mill, the linkage system allowing the first counterweight to move with respect to a rotational axis of the carrier plate.
B02C 17/18 - Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls Details
B02C 17/08 - Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with unperforated container with containers performing a planetary movement
4.
HOMOGENIZER AND METHOD OF GRINDING LARGE SAMPLE QUANTITIES
A method of grinding large sample quantities using a bead beater homogenizer (100) includes steps of loading a sample material into a vial (50) having a chamber enclosed by two end walls and a cylindrical sidewall defining a central vial axis, loading a plurality of balls into the vial (50) with the sample material, securing the vial (50) to a movable platform (20) of the homogenizer (100), and oscillating the platform (20) in a back-and- forth motion isolated to a movement axis (30), thereby causing the balls to move in a circular motion along the cylindrical sidewall, wherein the central vial axis is perpendicular to the movement axis (30). A system of a cylindrical vial (50) and a bead beater homogenizer (100) is also provided.
B02C 17/14 - Mills in which the charge to be ground is turned over by movements of the container other than by rotating, e.g. by swinging, vibrating, tilting
A method of grinding large sample quantities using a bead beater homogenizer includes steps of loading a sample material into a vial having a size of 500 ml or greater having a chamber enclosed by two end walls and a cylindrical sidewall defining a central vial axis, loading a plurality of balls into the vial with the sample material, securing the vial to a movable platform of the homogenizer, and oscillating the platform in a back-and-forth motion isolated to a movement axis, thereby causing the balls to move in a circular motion along the cylindrical sidewall, wherein the central vial axis is perpendicular to the movement axis. A system of a cylindrical vial and a bead beater homogenizer is also provided.
B02C 17/14 - Mills in which the charge to be ground is turned over by movements of the container other than by rotating, e.g. by swinging, vibrating, tilting
A bead beater homogenizer (100) includes a shaft having a main body (30) extending along a main axis (32) and a distal connection body (34) extending along a connection axis (36) that is acutely angled with respect to the main axis (32), a motor (20) configured to rotate the shaft about the main axis (32), a head (60) rotatably connected to the distal connection body (34) of the shaft, and a clamp (62, 64, 66) secured to the head (60) and configured to secure a sample vial holder (70, 170, 270, 370, 470) configured to hold one or more sample vials therein, wherein rotational motion of the shaft about the main axis (32) is translated into motion of the head (60) in directions normal to the main axis (32). A sample vial holder (470) having an internal network of channels defined within the housing through which a coolant can be passed to control a temperature of a vial disposed therein is also provided.
C12M 1/00 - Apparatus for enzymology or microbiology
B02C 17/14 - Mills in which the charge to be ground is turned over by movements of the container other than by rotating, e.g. by swinging, vibrating, tilting
A bead beater homogenizer includes a shaft having a main body extending along a main axis and a distal connection body extending along a connection axis that is acutely angled with respect to the main axis, a motor configured to rotate the shaft about the main axis, a head rotatably connected to the distal connection body of the shaft, and a clamp secured to the head and configured to secure a sample vial holder configured to hold one or more sample vials therein, wherein rotational motion of the shaft about the main axis is translated into motion of the head in directions normal to the main axis. A sample vial holder having an internal network of channels defined within the housing through which a coolant can be passed to control a temperature of a vial disposed therein is also provided.
A system includes a platform having an upper surface and defining a recess having a floor, the recess configured to seat a dish, and a movable securing frame that is movably connected with the platform, the frame including a lift support having an upper surface that is movable along a path from a first location that is beneath the floor of the recess, through the recess, to a second location that is coplanar with the upper surface of the platform. A motor configured to cause oscillation of the platform and the movable securing frame can be used. A method of using the system can include placing a dish above a recess defined by an upper surface of a platform, and lowering the frame with respect to the platform, thereby seating the dish within the recess.
B02C 17/14 - Mills in which the charge to be ground is turned over by movements of the container other than by rotating, e.g. by swinging, vibrating, tilting
B02C 17/18 - Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls Details
B66F 9/02 - Stationary loaders or unloaders, e.g. for sacks
B66F 9/06 - Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
A method for operating a power-compensated fusion furnace that includes a power control system having one switching device per heating element, power measurement circuitry, a master temperature sensor, and a controller. Each switching device is electrically connected to a respective heating element. The controller, in conjunction with the switching devices, is able to individually control the electrical energy flowing to each heating element, thereby controlling the duty cycle of each heating element. The duty cycles are corrected for one or more of variations in the electrical resistance of each heating element and position-dependent variations in furnace cavity temperature.
A grinding mill for pulverizing material includes a platform having an upper surface and defining a recess having a floor, the recess configured to seat a dish in which the material is disposed, and a movable securing frame that is movably connected with the platform, the frame including a lift support having an upper surface that is movable along a path from a first location that is beneath the floor of the recess, through the recess, to a second location that is coplanar with the upper surface of the platform. A motor configured to cause oscillation of the platform and the movable securing frame can be used. A method of using the grinding mill can include placing a dish above a recess defined by an upper surface of a platform, and lowering the frame with respect to the platform, thereby seating the dish within the recess.
B02C 17/00 - Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
B02C 17/14 - Mills in which the charge to be ground is turned over by movements of the container other than by rotating, e.g. by swinging, vibrating, tilting
B02C 17/18 - Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls Details
A grinding mill (100) for pulverizing material includes a platform (112) having an upper surface and defining a recess (117) having a floor, the recess (117) configured to seat a dish (190) in which the material is disposed, and a movable securing frame (140) that is movably connected with the platform (112), the frame (140) including a lift support (154) having an upper surface that is movable along a path from a first location that is beneath the floor of the recess (117), through the recess (117), to a second location that is coplanar with the upper surface of the platform (112). A method of using the grinding mill (100) can include placing a dish (190) above a recess (117) defined by an upper surface of a platform (112), and lowering the frame (140) with respect to the platform (112), thereby seating the dish (190) within the recess (117).
B02C 17/18 - Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls Details
A heating element includes a filament that conducts electricity. In some embodiments, the filament is encapsulated in a silicon nitride cover. The heating element provides a heating zone located relatively closer to the tip of the heating element and relatively further from a connection where electrical leads connect to the filament.
A fluxer includes a single, wide furnace enclosure that is sufficiently large and prewired accommodate multiple fusion positions. The furnace includes at least one movable insulated partition that defines the actual insulated volume of the furnace.
A fluxer includes a single, wide furnace enclosure that is sufficiently large and prewired to accommodate multiple fusion positions. The furnace includes at least one movable insulated partition that defines the actual insulated volume of the furnace.
A fluxer includes a single, wide furnace enclosure that is sufficiently large and prewired accommodate multiple fusion positions. The furnace includes at least one movable insulated partition that defines the actual insulated volume of the furnace.
A power-compensated fusion furnace includes a power control system having one switching device per heating element, power measurement circuitry, a master temperature sensor, and a controller. Each switching device is electrically connected to a respective heating element. The controller, in conjunction with the switching devices, is able to individually control the electrical energy flowing to each heating element, thereby controlling the duty cycle of each heating element. The duty cycles are corrected for one or more of: variations in the electrical resistance of each heating element and position-dependent variations in furnace cavity temperature.
A method for operating a power-compensated fusion furnace that includes a power control system having one switching device per heating element, power measurement circuitry, a master temperature sensor, and a controller. Each switching device is electrically connected to a respective heating element. The controller, in conjunction with the switching devices, is able to individually control the electrical energy flowing to each heating element, thereby controlling the duty cycle of each heating element. The duty cycles are corrected for one or more of variations in the electrical resistance of each heating element and position-dependent variations in furnace cavity temperature.
In a process for the preparation of inorganic sample disks for analysis, the sample, in powdered form, is mixed with a powdered reagent flux which has been pre-melted. In an inert gas atmosphere, the mixture is placed in a graphite crucible and heated to a temperature slightly above 1000°C. After the flux dissolves the sample, a homogenous mix is produced. This mix is then poured into a graphite mold, the bottom of which contains a molten pool of an inert metal, such as gold, which acts as a smooth receiving surface. Upon cooling, the material in the mold solidifies, resulting in a glassy disk that can be analyzed. Cooling can be accelerated by making use of a cooling fluid that has a substantially higher thermal capacity than air.
B29C 39/02 - Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressureApparatus therefor for making articles of definite length, i.e. discrete articles
B29C 67/00 - Shaping techniques not covered by groups , or
In a process for the preparation of inorganic sample disks for analysis, the sample, in powdered form, is mixed with a powdered reagent flux which has been pre-melted. In an inert gas atmosphere, the mixture is placed in a graphite crucible and heated to a temperature slightly above 1000° C. After the flux dissolves the sample, a homogenous mix is produced. This mix is then poured into a graphite mold, the bottom of which contains a molten pool of an inert metal, such as gold, which acts as a smooth receiving surface. Upon cooling, the material in the mold solidifies, resulting in a glassy disk that can be analyzed. Cooling can be accelerated by making use of a cooling fluid that has a substantially higher thermal capacity than air.
A heating apparatus is disclosed, that may include a ceramic rod having at least one circumferential groove extending substantially circumferentially about a perimeter of the rod; and a coil located about the perimeter of the rod and having turns of the coil embedded with the grooves of the rod.
A sample container motion device is disclosed which may include a guide having a main channel, the main channel including at least one bearing channel; a carriage configured to move within the main channel of the guide, the carriage having at least one bearing groove corresponding to the at least one bearing channel; a slide system configured to enable linear movement between the carriage and the guide, the slide system including at least one bearing guide located in between each bearing groove and its corresponding bearing channel; wherein each bearing guide may include a plurality of ball bearings; a ball spacer having openings for the ball bearings and configured to confine centers of the ball bearings in a fixed relation to a structure of the spacer.
A vial and impactor combination for use in a cryogenic mill is disclosed. The impactor includes a steel or similar core, and a surrounding exterior of polycarbonate or similar inert material. The vial is made preferably of polycarbonate with endcaps also made of polycarbonate.
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