# US 5,350,514 A · Centrifuge > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 5,350,514 A - Document ID: US5350514A - Status: Granted - Kind: A - Application number: 08/079,162 - Filed: 1993-06-18 - Granted: 1994-09-27 - Earliest claimed: 1992-06-20 - Assignees: Fresenius AG - Inventors: Friedrich Witthaus; Wolfram Weber; Wolfgang Biesel; Carlo Lay - Web page: https://patentgrep.com/patent/US5350514A ## CPC - B04B 9/08: Arrangement or disposition of transmission gearing {(for solid bowl screw centrifuges B04B1/2016); Couplings; Brakes} - B04B 5/0442: {with means for adding or withdrawing liquid substances during the centrifugation, e.g. continuous centrifugation} - B04B 2005/0492: {with fluid conveying umbilicus between stationary and rotary centrifuge parts} - B04B: CENTRIFUGES (high-speed drum mills B02C19/11; domestic spin driers D06F; analysing, measuring or monitoring physical or chemical properties of samples during centrifuging, see the relevant subclasses for these procedures, e.g. G01N) ## Abstract The invention relates to a centrifuge comprising a separation chamber, with which a duct is permanently connected, a main rotor, on which the separation chamber is able to be bearinged in a relatively rotatable manner with respect to it, by means of a bearing arrangement, and a guide means on the main rotor for guiding the duct from the middle lower part of the separation chamber into a part at a higher level than the centrifuge. In order to be able to introduce the separation chamber into the main rotor in a simple and controlled manner the bearing arrangement has, within the main rotor, a part which is open or is able to be opened in a radial direction for the introduction of the duct into the main rotor. ## Claims ### Claim 1 A centrifuge comprising: a separation chamber, with which a duct is permanently connected, a main rotor, on which the separation chamber is able to be bearinged, in a relatively rotatable manner with respect to the separation chamber, by means of a bearing arrangement, a guide means on the main rotor for guiding the duct from a middle lower part of the separation chamber into a part at a higher level than the centrifuge, bearing means having, within the main rotor, a part which is at least able to be opened in a radial direction for the introduction of the duct into the main rotor, said bearing means further having a spindle connected to the separation chamber, and furthermore a plurality of circumferentially distributed support wheels which are rotatably bearinged on the main rotor. ### Claim 2 (depends on 1) The centrifuge as claimed in claim 1, further comprising three support wheels are provided in each of two axially spaced planes. ### Claim 3 (depends on 2) The centrifuge as claimed in claim 2, further comprising at least one runner ring on the spindle, said runner ring cooperating with the support wheels to provide bearinged circumferential support of the separation chamber. ### Claim 4 (depends on 3) The centrifuge as claimed in claim 3, wherein the runner ring and/or at least one support wheel is flanged for providing an axial positioning of the separation chamber. ### Claim 5 (depends on 3) The centrifuge as claimed in claim 3, wherein the runner ring and/or at least one support wheel is provided with axial locking means for holding the separation chamber in a defined axial position. ### Claim 6 (depends on 2) The centrifuge as claimed in claim 2, wherein the support wheels are elastic in order to allow for imbalance. ### Claim 7 (depends on 1) The centrifuge as claimed in claim 1, wherein the spindle has thereon a gearing means for rotational driving of the separation chamber in a manner dependent on the rotation of the main rotor. ### Claim 8 (depends on 7) The centrifuge as claimed in claim 7, wherein the gearing means, which is constituted by toothed gearing, is drivingly connected with a main rotor drive means via a shaft, which is rotatably bearinged on the main rotor and is provided with a pinion. ### Claim 9 (depends on 1) The centrifuge as claimed in claim 1, wherein the spindle is elastically connected with the separation chamber. ### Claim 10 (depends on 1) The centrifuge as claimed in claim 1, wherein the separation chamber is a throw-away article of synthetic resin able to be recycled. ### Claim 11 A centrifuge comprising: a separation chamber, with which a duct is permanently connected, a main rotor, on which the separation chamber is able to be supported, in a relatively rotatable manner with respect to the separation chamber, by bearing means, and a guide means on the main rotor for guiding the duct from a middle lower part of the separation chamber into a part at a higher level than the centrifuge, said bearing means having, within the main rotor, a part which is open in a radial direction for the introduction of the duct into the main rotor, said bearing means further having a spindle connected to said separation chamber and a plurality of support wheels engaging said spindle to provide both rotational support and axial positioning for said separation chamber. ### Claim 12 A centrifuge comprising; a separation chamber, with which a duct is permanently connected, a main rotor, on which the separation chamber is able to be supported, in a relatively rotatable manner with respect to the separation chamber, by bearing means, and a guide means on the main rotor for guiding the duct from a middle lower part of the separation chamber into a part at a higher level than the centrifuge, said bearing means having, with the main rotor, a part which is able to be opened in a radial direction for the introduction of the duct into the main rotor, said bearing means further having a spindle connected to said separation chamber, said spindle being supported by a plurality of wheels rotatably mounted to said main rotor.