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
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)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Reciprocating Pumps (AREA)
- Actuator (AREA)
- Earth Drilling (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Transplanting Machines (AREA)
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 (ko) |
Family
ID=27209148
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL277490D NL277490A (ko) | 1961-04-20 | ||
NL6411096A NL6411096A (ko) | 1961-04-20 | 1964-09-23 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL6411096A NL6411096A (ko) | 1961-04-20 | 1964-09-23 |
Country Status (4)
Country | Link |
---|---|
US (1) | US3166991A (ko) |
DE (3) | DE1229480B (ko) |
GB (3) | GB1010905A (ko) |
NL (2) | NL6411096A (ko) |
Families Citing this family (14)
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 |
EP2536919B1 (en) | 2010-02-19 | 2014-04-23 | Council of Scientific and Industrial Research | A device for roof support of underground mine/tunnel |
Family Cites Families (16)
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 |
NL218204A (ko) * | 1956-06-21 | |||
BE559110A (ko) * | 1956-07-11 | |||
BE560243A (ko) * | 1956-08-25 | |||
BE560360A (ko) * | 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 |
-
0
- NL NL277490D patent/NL277490A/xx unknown
-
1961
- 1961-04-20 DE DEB62205A patent/DE1229480B/de active Pending
-
1962
- 1962-04-12 US US187127A patent/US3166991A/en not_active Expired - Lifetime
- 1962-04-20 GB GB14243/62A patent/GB1010905A/en not_active Expired
-
1963
- 1963-04-01 DE DE1963B0071366 patent/DE1240018C2/de not_active Expired
- 1963-12-13 DE DEB74658A patent/DE1292604B/de active Pending
-
1964
- 1964-03-13 GB GB10637/64A patent/GB1037686A/en not_active Expired
- 1964-09-23 NL NL6411096A patent/NL6411096A/xx unknown
- 1964-10-13 GB GB41752/64A patent/GB1077857A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1292604B (de) | 1969-04-17 |
DE1240018B (de) | 1967-05-11 |
GB1037686A (en) | 1966-08-03 |
GB1010905A (en) | 1965-11-24 |
DE1229480B (de) | 1966-12-01 |
DE1240018C2 (de) | 1973-02-08 |
GB1077857A (en) | 1967-08-02 |
US3166991A (en) | 1965-01-26 |
NL6411096A (ko) | 1965-06-14 |