NL25924C - - Google Patents

Info

Publication number
NL25924C
NL25924C NL25924DA NL25924C NL 25924 C NL25924 C NL 25924C NL 25924D A NL25924D A NL 25924DA NL 25924 C NL25924 C NL 25924C
Authority
NL
Netherlands
Application number
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 NL25924C publication Critical patent/NL25924C/xx

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/64—Contacts
    • H01H37/68—Contacts sealed in evacuated or gas-filled tube
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/16—Connecting or disconnecting pipe couplings or joints
    • E21B19/161—Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Thermally Actuated Switches (AREA)
NL25924D 1927-03-19 NL25924C (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE287453X 1927-03-19

Publications (1)

Publication Number Publication Date
NL25924C true NL25924C (enrdf_load_stackoverflow)

Family

ID=20307149

Family Applications (1)

Application Number Title Priority Date Filing Date
NL25924D NL25924C (enrdf_load_stackoverflow) 1927-03-19

Country Status (4)

Country Link
DE (1) DE504836C (enrdf_load_stackoverflow)
FR (1) FR650907A (enrdf_load_stackoverflow)
GB (1) GB287453A (enrdf_load_stackoverflow)
NL (1) NL25924C (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USB354822I5 (enrdf_load_stackoverflow) * 1956-07-19
DE2727994C2 (de) * 1977-06-22 1986-02-13 Lothar Dr. Dipl.Kaufm. Dipl.-Handelsl. 5030 Hürth Wurzer Absperrventil
DE4238767A1 (de) * 1992-11-12 1994-05-19 Siemens Ag Vakuumrelais

Also Published As

Publication number Publication date
GB287453A (en) 1929-02-14
DE504836C (de) 1930-08-08
FR650907A (fr) 1929-02-12

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