NL277490A - - Google Patents

Info

Publication number
NL277490A
NL277490A NL277490DA NL277490A NL 277490 A NL277490 A NL 277490A NL 277490D A NL277490D A NL 277490DA NL 277490 A NL277490 A NL 277490A
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 NL277490A publication Critical patent/NL277490A/xx

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/14—Telescopic props
    • E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J1/00—Pistons; Trunk pistons; Plungers
    • F16J1/005—Pistons; Trunk pistons; Plungers obtained by assembling several pieces
    • F16J1/006—Pistons; Trunk pistons; Plungers obtained by assembling several pieces of different materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J10/00—Engine or like cylinders; Features of hollow, e.g. cylindrical, bodies in general
    • F16J10/02—Cylinders designed to receive moving pistons or plungers

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Transplanting Machines (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Earth Drilling (AREA)
  • Reciprocating Pumps (AREA)
  • Actuator (AREA)
NL277490D 1961-04-20 NL277490A (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEB62205A DE1229480B (de) 1961-04-20 1961-04-20 Hydraulischer Grubenstempel
DE1963B0071366 DE1240018C2 (de) 1961-04-20 1963-04-01 Hydraulischer Grubenstempel
DEB74658A DE1292604B (de) 1961-04-20 1963-12-13 Hydraulischer Grubenstempel

Publications (1)

Publication Number Publication Date
NL277490A true NL277490A (fr)

Family

ID=27209148

Family Applications (2)

Application Number Title Priority Date Filing Date
NL277490D NL277490A (fr) 1961-04-20
NL6411096A NL6411096A (fr) 1961-04-20 1964-09-23

Family Applications After (1)

Application Number Title Priority Date Filing Date
NL6411096A NL6411096A (fr) 1961-04-20 1964-09-23

Country Status (4)

Country Link
US (1) US3166991A (fr)
DE (3) DE1229480B (fr)
GB (3) GB1010905A (fr)
NL (2) NL6411096A (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2636794C2 (de) * 1975-09-09 1982-06-09 Voest-Alpine AG, 1011 Wien Gebirgsschlagventil für hydraulische Grubenausbauelemente
US4009645A (en) * 1975-11-03 1977-03-01 Gerhart Engineering And Machine Company Piston pump
US4073312A (en) * 1976-06-21 1978-02-14 National Distillers And Chemical Corporation Charge and relief valve
US4203354A (en) * 1976-12-20 1980-05-20 The Bendix Corporation Hydraulic piston with metallic O-ring groove and non-metallic slidable surfaces
US4165880A (en) * 1977-07-11 1979-08-28 Olsson Hans O Sealing device
DE3734547A1 (de) * 1987-10-13 1989-05-03 Festo Kg Kolben-zylinder-aggregat
US5230443A (en) * 1990-06-13 1993-07-27 Du Benjamin R Condiment dispensing device
AT395047B (de) * 1990-11-21 1992-08-25 Reisner & Wolff Eng Topfartiger hydraulikzylinder
US5299489A (en) * 1991-05-17 1994-04-05 Reo Hydraulic Pierce & Form Pressure cylinder with low tolerance fit capable of supporting large transverse loads
US6099264A (en) * 1998-08-27 2000-08-08 Itt Manufacturing Enterprises, Inc. Pump controller
US6062427A (en) * 1998-08-27 2000-05-16 Du Investments L.L.C. Beer keg and pre-mixed beverage tank change-over device
US6343539B1 (en) 1999-11-10 2002-02-05 Benjamin R. Du Multiple layer pump diaphragm
DE19954577C1 (de) * 1999-11-12 2001-06-21 Hyco Pacoma Gmbh Liftzylindereinheit für eine Hebebühne
WO2011101716A2 (fr) 2010-02-19 2011-08-25 Council Of Scientific And Industrial Research Dispositif pour l'étaiement du toit d'une mine souterraine ou d'un tunnel

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH92916A (fr) * 1920-10-13 1922-02-16 W H Dorman & Co Ltd Colonne d'étayage pour tunnels, mines etc.
DE857679C (de) * 1943-10-18 1952-12-01 Smith S Jacking Systems Ltd Druckmittelbetaetigtes Geraet, beispielsweise Wagenheber oder sonstiges Hebezeug
DE805586C (de) * 1945-11-16 1951-05-25 Ondulex Sarl Soc Kolbenring
US2584926A (en) * 1949-08-05 1952-02-05 Birmingham Small Arms Co Ltd Plunger for inflating pumps
DE847283C (de) * 1950-07-09 1952-08-21 Mannesmann Ag Hydraulischer Grubenstempel
DE941541C (de) * 1952-04-09 1956-04-12 Eisenwerk Wanheim G M B H Verstellbarer metallischer Grubenstempel
DE1063098B (de) * 1953-07-28 1959-08-13 Pleiger Maschf Paul Druckluftvorschubstuetze fuer Gesteins-bohrhaemmer u. dgl. mit teleskopartig ineinander verschiebbaren Stuetzrohren
DE1044004B (de) * 1954-05-11 1958-11-20 Maschf Hydraulischer Grubenstempel
DE1023436B (de) * 1955-11-24 1958-01-30 Hermann Schwarz Kommanditgesel Hydraulischer Grubenstempel
BE558508A (fr) * 1956-06-21
BE559110A (fr) * 1956-07-11
BE560243A (fr) * 1956-08-25
BE560360A (fr) * 1956-08-29
FR1180897A (fr) * 1957-08-07 1959-06-10 Etude Hydraulique Dans L Ind E Installation de soutènement de plafonds de mines
DE1103699B (de) * 1958-05-22 1961-03-30 Segments Amedee Bollee S A R L Kolbenring
DE1059380B (de) * 1958-08-07 1959-06-18 Karl Gerlach Mehrteiliger Grubenstempel

Also Published As

Publication number Publication date
DE1240018B (de) 1967-05-11
GB1037686A (en) 1966-08-03
GB1077857A (en) 1967-08-02
US3166991A (en) 1965-01-26
NL6411096A (fr) 1965-06-14
DE1292604B (de) 1969-04-17
DE1240018C2 (de) 1973-02-08
GB1010905A (en) 1965-11-24
DE1229480B (de) 1966-12-01

Similar Documents

Publication Publication Date Title
AT224007B (fr)
BE597570A (fr)
BE598861A (fr)
BE649655A (fr)
BE639502A (fr)
BE472265A (fr)
BE469342A (fr)
BE464928A (fr)
NL277490A (fr)
BE628316A (fr)
BE626468A (fr)
BE625189A (fr)
BE623825A (fr)
BE623385A (fr)
BE622956A (fr)
BE622785A (fr)
BE458606A (fr)
BE622518A (fr)
BE622076A (fr)
BE621169A (fr)
BE396226A (fr)
BE620757A (fr)
BE164003A (fr)
BE475477A (fr)
BE602469A (fr)