GB1108694A - Vacuum centrifuge - Google Patents

Vacuum centrifuge


Publication number
GB1108694A GB1939465A GB1939465A GB1108694A GB 1108694 A GB1108694 A GB 1108694A GB 1939465 A GB1939465 A GB 1939465A GB 1939465 A GB1939465 A GB 1939465A GB 1108694 A GB1108694 A GB 1108694A
United Kingdom
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Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Priority to DE1964C0033097 priority Critical patent/DE1286785B/en
Application filed by MARTIN CHRIST filed Critical MARTIN CHRIST
Publication of GB1108694A publication Critical patent/GB1108694A/en
Application status is Expired legal-status Critical



    • B04B9/00Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
    • B04B9/12Suspending rotary bowls ; Bearings; Packings for bearings
    • B04B15/00Other accessories for centrifuges
    • B04B15/08Other accessories for centrifuges for ventilating or producing a vacuum in the centrifuge


1,108,694. Centrifugal separators. M. CHRIST. 9 June, 1965 [10 June, 1964], No. 19394/65. Heading B2P. [Also in Division F2] The shaft 7 of a centrifuge rotor which rotates in an evacuated chamber 1 is sealed where it passes through the chamber wall by means of an oil-lubricated gland 9 to which oil is supplied from a tank 11 via pipe 10, oil leaking from the gland being automatically returned to the tank 11: The centrifuge may be of the ultracentrifuge type having a rotor speed of 60,000 r.p.m. The chamber 1 is closed by a removable cover 2 and is evacuated through a pipe 4 by means of a vacuum pump 5. During centrifugation oil leaking from the gland enters a chamber 12 and flows by gravity through a pipe 13 into a tank 14 which is connected by a pipe 15 to a tank 16 itself adapted to be connected via a pipe 17 to the tank 11 upon operation of an electromagnetically operated valve 18 which during centrifugation is normally closed. During centrifugation the chamber 12 and the interior of the tanks 14, 16 are under vacuum. When the vacuum pump 5 is shut upon termination of centrifugation an electromagnetically operated valve 19 opens to admit air in the chamber 1. The air forces the leakage oil which has accumulated in the tank 14 into the tank 16. After a slight delay, the valve 18 in the line 17 opens for the oil to flow from the tank 16 back into the tank 11. The delayed opening of the valve 18 may be achieved by means of a time-lag relay, Fig. 2 (not shown) incorporated in a circuit comprising the valves 18, 19, and their associated electromagnets. Alternatively, the switch 22 operating the electromagnet associated with the valve 18, Fig. 3, is connected in series with a battery B and a switch S which is supported on a bracket 23 fixed to the wall of the chamber 1 and is normally held open during centrifugation. A manuallyoperated switch 28 in series with the battery B and with the switch S is closed during centrifugation but is adapted to be opened when centrifugation stops to prevent the battery from running down when the cover 2 is removed. The switch 28 is opened only when after centrifugation. a certain time has elapsed after the opening of the cover 2, during which time the switch 22 will have caused the valve 18 to open so as to transfer the leakage oil from tank 16 to tank 11. In a modification. the centrifuge drive unit is disposed above the chamber 1 and the drive shaft is provided with a centrifuging plate which conveys leakage oil to a chamber similar to chamber 12 and thence to a tank corresponding to tank 14.
GB1939465A 1964-06-10 1965-06-09 Vacuum centrifuge Expired GB1108694A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1964C0033097 DE1286785B (en) 1964-06-10 1964-06-10 vacuum centrifuge

Publications (1)

Publication Number Publication Date
GB1108694A true GB1108694A (en) 1968-04-03



Family Applications (1)

Application Number Title Priority Date Filing Date
GB1939465A Expired GB1108694A (en) 1964-06-10 1965-06-09 Vacuum centrifuge

Country Status (3)

Country Link
US (1) US3327938A (en)
DE (1) DE1286785B (en)
GB (1) GB1108694A (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3746247A (en) * 1970-12-23 1973-07-17 Electro Nucleonics Ultracentrifuge with rotor speed identification
DE2113460A1 (en) * 1971-03-19 1973-06-07 Heraeus Christ Gmbh Centrifuge with evacuatable HOUSING
DE2122464C3 (en) * 1971-05-06 1978-10-26 Heraeus-Christ Gmbh, 3360 Osterode
US3942716A (en) * 1973-01-15 1976-03-09 Beckman Instruments, Inc. Flow-thru vacuum bushing for ultracentrifuges
US4018304A (en) * 1975-10-08 1977-04-19 Baxter Travenol Laboratories, Inc. Lubrication system for a centrifugal liquid processing system
US4205779A (en) * 1979-03-14 1980-06-03 Beckman Instruments, Inc. Pressure bypass ports for an ultracentrifuge drive system in a vacuum environment
US4196844A (en) * 1979-03-15 1980-04-08 Beckman Instruments, Inc. Closing structure for centrifuge vacuum chamber
FR2567208B1 (en) * 1984-07-05 1988-12-09 Cit Alcatel rotary pump has high vacuum
JPH01501453A (en) * 1986-11-20 1989-05-25
US5217572A (en) * 1989-03-20 1993-06-08 Jouan Centrifugal evaporator-concentrator for concentrating specimens by evaporation of the solvent
US5137604A (en) * 1990-07-06 1992-08-11 Savant Instruments, Inc. Apparatus for drying biological specimens
DE10212808B4 (en) 2002-03-22 2004-07-29 Westfalia Separator Ag separator
DE202005001539U1 (en) * 2005-02-01 2006-06-14 Westfalia Separator Ag Separator, has lubrication system provided for lubrication of spindle bearing, and tube-like, disc-like projection and discharge conduit for pumping down lubricant from drive housing and/or from belt pulley, after lubrication of bearing
JP5218857B2 (en) * 2009-07-27 2013-06-26 日立工機株式会社 centrifuge
CN102189042A (en) * 2010-03-16 2011-09-21 上海市离心机械研究所有限公司 Integrated arrangement structure of decanter centrifuge and hydraulic station
JP5854216B2 (en) * 2012-01-18 2016-02-09 日立工機株式会社 centrifuge
JP5854218B2 (en) * 2012-01-24 2016-02-09 日立工機株式会社 centrifuge
CN103406214B (en) * 2013-08-30 2015-04-22 安徽信灵检验医学科技有限公司 Biological sample safe centrifugal machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733857A (en) * 1956-02-07 beams
US2347751A (en) * 1941-06-02 1944-05-02 Phillips Petroleum Co Pumping system
DE1014349B (en) * 1953-09-10 1957-08-22 Anschuetz & Co Gmbh ultracentrifuge

Also Published As

Publication number Publication date
US3327938A (en) 1967-06-27
DE1286785B (en) 1969-01-09

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