초록 ▼

The spinning disc centrifuge rotor includes a sample holder formed from a cylindrical disc body and a cover plate that are made from a transparent material, such as polycarbonate. The disc-shaped body has two concentric or coaxial recesses defined therein. The first recess forms a cylindrical well o

The spinning disc centrifuge rotor includes a sample holder formed from a cylindrical disc body and a cover plate that are made from a transparent material, such as polycarbonate. The disc-shaped body has two concentric or coaxial recesses defined therein. The first recess forms a cylindrical well or sample chamber for receiving a generally cylindrical rock sample. The second recess has a larger diameter than the first recess, and is shallower, forming a fluid collection area above the sample well, the second recess forming an annular ring extending around the top edge or rim of the sample well. An O-ring snugly within the outer wall of the second recess and forms a seal between the cover plate and the floor of the second recess, preventing fluid leakage. A rotor shaft extends from the bottom face of the cylindrical disc.

대표청구항 ▼

1. A spinning disc centrifuge rotor, comprising: a sample holder having:a cylindrical disc body having an axis and an axial length extending from a top face to a bottom face, and first and second coaxial cylindrical recesses extending through the top face and into the body;wherein the first recess e

1. A spinning disc centrifuge rotor, comprising: a sample holder having:a cylindrical disc body having an axis and an axial length extending from a top face to a bottom face, and first and second coaxial cylindrical recesses extending through the top face and into the body;wherein the first recess extending deep into the body at a first depth from the top face and having a first diameter, the first recess defining a sample well having an upper rim, a planar floor, and a wall extending normal between the upper rim and planar floor, and adapted for receiving a cylindrical core sample;wherein the second recess extending into the body at a second depth from the top face, the second depth being less than the first depth of the first recess, the second recess having a second diameter greater than the first diameter of the first recess, and forming an annular ring extending outward from the upper rim of the first recess, and an outer periphery thereabout, the annular ring defining a planar floor between the upper rim and the outer periphery; anda circular cover plate attachable to and covering the top face of the cylindrical disc body;wherein the second recess defining a fluid collection chamber between the cover plate, and the floor and the outer periphery of the second recess; anda rotor shaft extending from the bottom face of the cylindrical disc body, the shaft defining an axis of rotation extending coaxially through the cylindrical disc body and concentrically through the circular cover plate;whereby, when the shaft is rotated, fluids in the core sample exit a face of the core sample adjacent to the cover plate, and denser portions of the fluids are driven by centrifugal force towards the outer periphery of the fluid collection chamber. 2. The spinning disc centrifuge rotor as recited in claim 1, further comprising an O-ring disposed between said cover and the floor of the annular ring, fitting snugly against the outer periphery of the fluid collection chamber to form a fluid-tight seal. 3. The spinning disc centrifuge rotor as recited in claim 2, wherein said cylindrical disc body has an annular groove defined therein at the outer periphery of the fluid collection chamber, forming a seat for said O-ring. 4. The spinning disc centrifuge rotor as recited in claim 1, wherein said cylindrical disc body and said cover plate are formed from a transparent material. 5. The spinning disc centrifuge rotor as recited in claim 1, wherein said cylindrical disc body and said cover plate are formed from polycarbonate. 6. The spinning disc centrifuge rotor as recited in claim 1, wherein said cylindrical disc body and said cover plate are formed from polymethyl methacrylate. 7. A sample holder for a spinning disc centrifuge, comprising: a cylindrical disc body having an axis and an axial length extending from a top face to a bottom face, and first and second coaxial cylindrical recesses extending through the top face and into the body;wherein the first recess extending into the body at a first depth from the top face and having a first diameter, the first recess defining a sample well having an upper rim, a planar floor, and a wall extending normal between the upper rim and planar floor, and adapted for receiving a cylindrical core sample;wherein the second recess extending into the body at a second depth from the top face, the second depth being less than the first depth of the first recess, the second recess having a second diameter greater than the first diameter of the first recess, and forming an annular ring extending outward from the upper rim of the first recess, and an outer periphery thereabout, the annular ring defining a planar floor between the upper rim and the outer periphery; anda circular cover plate attachable to and covering the top face of the cylindrical disc body;wherein the second recess defining a fluid collection chamber between the cover plate, and the floor and the outer periphery of the second recess. 8. The sample holder according to claim 7, further comprising an O-ring disposed between said cover and the floor of the annular ring, fitting snugly against the outer periphery of the fluid collection chamber to form a fluid-tight seal. 9. The sample holder according to claim 8, wherein said cylindrical disc body has an annular groove defined therein at the outer periphery of the fluid collection chamber, forming a seat for said O-ring. 10. The sample holder according to claim 7, wherein said cylindrical disc body and said cover plate are formed from a transparent material. 11. The sample holder according to claim 7, wherein said cylindrical disc body and said cover plate are formed from polycarbonate. 12. The sample holder according to claim 7, wherein said cylindrical disc body and said cover plate are formed from polymethyl methacrylate.