NL189032B - DRILL UNIT EQUIPPED WITH AN ELECTROMAGNETIC FOOT. - Google Patents

DRILL UNIT EQUIPPED WITH AN ELECTROMAGNETIC FOOT.

Info

Publication number
NL189032B
NL189032B NLAANVRAGE8700839,A NL189032DA NL189032B NL 189032 B NL189032 B NL 189032B NL 189032D A NL189032D A NL 189032DA NL 189032 B NL189032 B NL 189032B
Authority
NL
Netherlands
Prior art keywords
unit equipped
drill unit
electromagnetic foot
foot
electromagnetic
Prior art date
Application number
NLAANVRAGE8700839,A
Other languages
Dutch (nl)
Original Assignee
Hougen Everett D
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.)
Publication of NL189032B publication Critical patent/NL189032B/en

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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L21/00—Vacuum gauges

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
NLAANVRAGE8700839,A 1954-07-07 DRILL UNIT EQUIPPED WITH AN ELECTROMAGNETIC FOOT. NL189032B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL189032 1954-07-07

Publications (1)

Publication Number Publication Date
NL189032B true NL189032B (en)

Family

ID=19750672

Family Applications (2)

Application Number Title Priority Date Filing Date
NLAANVRAGE8700839,A NL189032B (en) 1954-07-07 DRILL UNIT EQUIPPED WITH AN ELECTROMAGNETIC FOOT.
NL101770D NL101770C (en) 1954-07-07

Family Applications After (1)

Application Number Title Priority Date Filing Date
NL101770D NL101770C (en) 1954-07-07

Country Status (6)

Country Link
BE (1) BE539566A (en)
CH (1) CH332179A (en)
DE (1) DE1002968B (en)
FR (1) FR1127210A (en)
GB (1) GB780828A (en)
NL (2) NL101770C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2961601A (en) * 1957-12-27 1960-11-22 Gen Electric Mean free path vacuum gage
GB890920A (en) * 1958-06-11 1962-03-07 Ca Nat Research Council A magnetron device for the measurement of low pressures
DE1279381B (en) * 1960-08-29 1968-10-03 Nat Res Council Ottawa Magnetic field tubes for measuring low pressures
DE102011010138B4 (en) * 2010-10-22 2012-11-15 Vacom Vakuum Komponenten & Messtechnik Gmbh Penning type cold cathode pressure gauge

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE861329C (en) * 1951-04-10 1952-12-29 Telefunken Gmbh Ionization manometer

Also Published As

Publication number Publication date
DE1002968B (en) 1957-02-21
NL101770C (en)
CH332179A (en) 1958-08-31
FR1127210A (en) 1956-12-11
BE539566A (en)
GB780828A (en) 1957-08-07

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