GB1120858A - Door mechanism for centrifuge vacuum chamber - Google Patents

Door mechanism for centrifuge vacuum chamber

Info

Publication number
GB1120858A
GB1120858A GB47212/66A GB4721266A GB1120858A GB 1120858 A GB1120858 A GB 1120858A GB 47212/66 A GB47212/66 A GB 47212/66A GB 4721266 A GB4721266 A GB 4721266A GB 1120858 A GB1120858 A GB 1120858A
Authority
GB
United Kingdom
Prior art keywords
door
racks
during
plate
rotor
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.)
Expired
Application number
GB47212/66A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beckman Coulter Inc
Original Assignee
Beckman Instruments Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Beckman Instruments Inc filed Critical Beckman Instruments Inc
Publication of GB1120858A publication Critical patent/GB1120858A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B15/00—Other accessories for centrifuges
    • B04B15/08—Other accessories for centrifuges for ventilating or producing a vacuum in the centrifuge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B7/00—Elements of centrifuges
    • B04B7/02—Casings; Lids

Landscapes

  • Centrifugal Separators (AREA)

Abstract

A centrifuge vacuum chamber 24, Fig. 3, housing a rotor 44 driven from underneath by a spindle 46 is provided with a door mechanism comprising a plate 22, Figs. 1 and 3, secured over the top of the chamber and having an access hole 30 about which is disposed a sealing O-ring 34 carried by the plate, a door 10 adapted to sealingly engage the O-ring 34 and movable between closed and open positions for covering and uncovering the access hole 30 by means of racks 18, 20 which are horizontally movable and include cam ramps 60 for holding the door 10 and displacing it during initial movement of the racks 18, 20 when the door is being opened and during final movement of the racks when the door is being closed, means 106, 108 for restraining the door against horizontal movement during vertical movement, and a locking pin 74, Fig. 5c, for engaging and holding the door during its horizontal movement. The chamber 24 of the centrifuge has a heavy guard ring 40 for protection against rotor failure during operation. A liner 42 surrounds the rotor. The rotor may be supported in an upper bearing and seal assembly which may be mounted in an opening 48 in the door 10. When not in use, as shown, the opening is closed by a removable plug 50. A cover plate 52 having an opening 54 for registration with the access p hole 30 in the plate 22 is supported on spacer blocks 12, 14, 16. The racks 18, 20 are mounted at one end on wheels 66 of a diameter smaller than the height of the spacer blocks and are driven at the other end by gears 90 mounted on a common shaft 94 which may be driven automatically, or by means of a chain and sprocket drive 96, 98, 100 actuated manually by means of a knob 102. The upper ends of the cam ramps 60 in the racks 18, 20 join on to horizontal seats 64 which serve to carry support pins 62 in the side of the door 10 during horizontal movement of the door. The door is provided with holes 70 which are adapted to receive chamfered alignment dowel pins 72 projecting from the plate 22 during descent of the door towards the closed position. The locking pin 74 is carried in a recess in the side of the rack 18 and is biased outwardly by a spring 80 so that its head 76 bears against a cam surface
GB47212/66A 1965-11-05 1966-08-21 Door mechanism for centrifuge vacuum chamber Expired GB1120858A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US506492A US3391862A (en) 1965-11-05 1965-11-05 Door mechanism for centrifuge vacuum chamber

Publications (1)

Publication Number Publication Date
GB1120858A true GB1120858A (en) 1968-07-24

Family

ID=24014819

Family Applications (1)

Application Number Title Priority Date Filing Date
GB47212/66A Expired GB1120858A (en) 1965-11-05 1966-08-21 Door mechanism for centrifuge vacuum chamber

Country Status (3)

Country Link
US (1) US3391862A (en)
DE (1) DE1532692A1 (en)
GB (1) GB1120858A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1538390A (en) * 1967-06-27 1968-09-06 Alcatel Sa Large diameter valve for ultra high vacuum
US4196844A (en) * 1979-03-15 1980-04-08 Beckman Instruments, Inc. Closing structure for centrifuge vacuum chamber
US4764162A (en) * 1986-11-03 1988-08-16 E. I. Du Pont De Nemours And Company Removable door seal assembly for a centrifuge
FR2644366B1 (en) * 1989-03-17 1991-06-14 Jouan IMPROVEMENT ON THE SHUTTER COVERS OF APPARATUS WITH CENTRIFUGATION ROTORS
US6063017A (en) * 1997-04-10 2000-05-16 Sorvall Products, L.P. Method and apparatus capable of preventing vertical forces during rotor failure
FR2785206B1 (en) * 1998-10-14 2001-01-19 Fond Jean Dausset Ceph CENTRIFUGATION DEVICE FOR LABORATORY AUTOMATON
US6978513B2 (en) * 2003-03-28 2005-12-27 Kendro Laboratory Products, Lp Method and apparatus for stopping a moving member

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US982036A (en) * 1909-11-03 1911-01-17 Adoniram J Collar Gate-valve.
US3216694A (en) * 1962-03-14 1965-11-09 Cenco Instr Corp Large high vacuum valve
GB985715A (en) * 1962-05-12 1965-03-10 Martin Christ Improvements in and relating to centrifuges
US3168474A (en) * 1963-04-25 1965-02-02 Beckman Instruments Inc Centrifuge apparatus

Also Published As

Publication number Publication date
DE1532692A1 (en) 1970-05-14
US3391862A (en) 1968-07-09

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