GB1272539A - Improvements in and relating to gas sampling means for ultracentrifuges - Google Patents

Improvements in and relating to gas sampling means for ultracentrifuges

Info

Publication number
GB1272539A
GB1272539A GB994070A GB994070A GB1272539A GB 1272539 A GB1272539 A GB 1272539A GB 994070 A GB994070 A GB 994070A GB 994070 A GB994070 A GB 994070A GB 1272539 A GB1272539 A GB 1272539A
Authority
GB
United Kingdom
Prior art keywords
bowl
gas
passages
apertures
diffuser
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
GB994070A
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of GB1272539A publication Critical patent/GB1272539A/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
    • B04B5/00—Other centrifuges
    • B04B5/08—Centrifuges for separating predominantly gaseous mixtures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B11/00—Feeding, charging, or discharging bowls
    • B04B11/02—Continuous feeding or discharging; Control arrangements therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/02—Containers; Seals
    • H01L23/04—Containers; Seals characterised by the shape of the container or parts, e.g. caps, walls
    • H01L23/053—Containers; Seals characterised by the shape of the container or parts, e.g. caps, walls the container being a hollow construction and having an insulating or insulated base as a mounting for the semiconductor body
    • H01L23/057—Containers; Seals characterised by the shape of the container or parts, e.g. caps, walls the container being a hollow construction and having an insulating or insulated base as a mounting for the semiconductor body the leads being parallel to the base
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
    • H01L2924/0001—Technical content checked by a classifier
    • H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00

Landscapes

  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Centrifugal Separators (AREA)

Abstract

1,272,539. Gas centrifuges. COMMISSARIAT A L'ENERGIE ATOMIQUE. 2 March, 1970 [3 March, 1969], No. 9940/70. Heading B2P. An ultracentrifuge for separating the constituents of a gas mixture comprises a rotatable cylindrical bowl 1 closed by two parallel ends 3, 4, Fig. 1, a conduit 5 for introducing the gas mixture to be centrifuged into the bowl and extending along the axis of rotation, a plurality of gas withdrawal passages 6 in at least one of the ends 3, 4 of the bowl, the passages communicating with the interior and exterior of the bowl by axially spaced inlet and outlet apertures 6a, 6b respectively in axially spaced inner and outer faces of the bowl, the inlet and outlet apertures lying respectively on circles centred on the axis of rotation and the outlet apertures being displaced angularly in like direction relative to said axis and with respect to their associated inlet apertures. A diffuser 8 is provided adjacent each end of the bowl for recovering the Kinetic energy of the gas streams escaping from the apertures. One or more spiral-shaped ramps 12, Fig. 3, are mounted between the metal sheets 9, 10 forming the diffuser to guide the gas through the diffuser. In a modification, Fig. 4, recovery of Kinetic energy is improved by providing a non-turbulent-gasflow chamber 13 between the end 3 of the bowl and a partition 14 provided with gas passages 15. The end 3 has an annular opening 16 in which blades 17 are mounted at an angle thereby defining between them the gas withdrawal passages.
GB994070A 1969-03-03 1970-03-02 Improvements in and relating to gas sampling means for ultracentrifuges Expired GB1272539A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6905728A FR2036051A5 (en) 1969-03-03 1969-03-03

Publications (1)

Publication Number Publication Date
GB1272539A true GB1272539A (en) 1972-05-03

Family

ID=9029957

Family Applications (1)

Application Number Title Priority Date Filing Date
GB994070A Expired GB1272539A (en) 1969-03-03 1970-03-02 Improvements in and relating to gas sampling means for ultracentrifuges

Country Status (4)

Country Link
FR (1) FR2036051A5 (en)
GB (1) GB1272539A (en)
LU (1) LU60430A1 (en)
NL (1) NL158402B (en)

Also Published As

Publication number Publication date
FR2036051A5 (en) 1970-12-24
NL7002257A (en) 1970-09-07
DE2009725B2 (en) 1972-06-29
LU60430A1 (en) 1970-04-28
NL158402B (en) 1978-11-15
DE2009725A1 (en) 1971-02-25

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PE20 Patent expired after termination of 20 years