GB9111746D0 - Improvements relating to vacuum gauges - Google Patents

Improvements relating to vacuum gauges

Info

Publication number
GB9111746D0
GB9111746D0 GB919111746A GB9111746A GB9111746D0 GB 9111746 D0 GB9111746 D0 GB 9111746D0 GB 919111746 A GB919111746 A GB 919111746A GB 9111746 A GB9111746 A GB 9111746A GB 9111746 D0 GB9111746 D0 GB 9111746D0
Authority
GB
United Kingdom
Prior art keywords
improvements relating
vacuum gauges
gauges
vacuum
relating
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.)
Withdrawn
Application number
GB919111746A
Other versions
GB2256310A (en
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.)
BOC Group Ltd
Original Assignee
BOC Group Ltd
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 BOC Group Ltd filed Critical BOC Group Ltd
Priority to GB9111746A priority Critical patent/GB2256310A/en
Publication of GB9111746D0 publication Critical patent/GB9111746D0/en
Publication of GB2256310A publication Critical patent/GB2256310A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J41/00—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas; Discharge tubes for evacuation by diffusion of ions
    • H01J41/02—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas
    • H01J41/06—Discharge tubes for measuring pressure of introduced gas or for detecting presence of gas with ionisation by means of cold cathodes
GB9111746A 1991-05-31 1991-05-31 A vacuum gauge Withdrawn GB2256310A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9111746A GB2256310A (en) 1991-05-31 1991-05-31 A vacuum gauge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9111746A GB2256310A (en) 1991-05-31 1991-05-31 A vacuum gauge

Publications (2)

Publication Number Publication Date
GB9111746D0 true GB9111746D0 (en) 1991-07-24
GB2256310A GB2256310A (en) 1992-12-02

Family

ID=10695886

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9111746A Withdrawn GB2256310A (en) 1991-05-31 1991-05-31 A vacuum gauge

Country Status (1)

Country Link
GB (1) GB2256310A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4445828A1 (en) * 1994-12-22 1996-06-27 Leybold Ag Penning measuring cell with ignition aid
GB9906788D0 (en) * 1999-03-24 1999-05-19 Boc Group Plc Vacuum gauge
GB0722063D0 (en) * 2007-11-12 2007-12-19 Edwards Ltd Ionisation vacuum gauges and gauge heads
US9671302B2 (en) 2013-09-30 2017-06-06 Mks Instruments, Inc. Cold cathode ionization vacuum gauge
TWI739300B (en) 2015-01-15 2021-09-11 美商Ｍｋｓ儀器公司 Ionization gauge and method of making same
JP6990251B2 (en) 2016-12-13 2022-01-12 エム ケー エス インストルメンツ インコーポレーテッド Anode electrode shield used for reverse magnetron cold cathode ionization vacuum gauge

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB555134A (en) * 1942-02-03 1943-08-05 Otto Ernst Heinrich Klemperer Improvements in or relating to apparatus for measuring low gas pressure
GB678695A (en) * 1951-04-20 1952-09-03 Standard Telephones Cables Ltd Improvements in or relating to ionisation manometers
GB1108997A (en) * 1964-10-16 1968-04-10 Kaman Aircraft Corp Improvements relating to the ionization of gases
US3356287A (en) * 1965-07-28 1967-12-05 Granville Phillips Company Method and apparatus for ion pumping and pressure measurement
GB1535314A (en) * 1975-02-06 1978-12-13 Boc International Ltd Vacuum gauges

Also Published As

Publication number Publication date
GB2256310A (en) 1992-12-02

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)