FR2030920A5 - - Google Patents

Info

Publication number
FR2030920A5
FR2030920A5 FR6944323A FR6944323A FR2030920A5 FR 2030920 A5 FR2030920 A5 FR 2030920A5 FR 6944323 A FR6944323 A FR 6944323A FR 6944323 A FR6944323 A FR 6944323A FR 2030920 A5 FR2030920 A5 FR 2030920A5
Authority
FR
France
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.)
Expired
Application number
FR6944323A
Other languages
French (fr)
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.)
Gewerkschaft Eisenhutte Westfalia GmbH
Original Assignee
Gewerkschaft Eisenhutte Westfalia GmbH
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
Priority claimed from DE19691931627 external-priority patent/DE1931627C3/de
Application filed by Gewerkschaft Eisenhutte Westfalia GmbH filed Critical Gewerkschaft Eisenhutte Westfalia GmbH
Application granted granted Critical
Publication of FR2030920A5 publication Critical patent/FR2030920A5/fr
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/16—Characterised by the construction of the motor unit of the straight-cylinder type of the telescopic type
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Actuator (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Fluid-Damping Devices (AREA)
  • Reciprocating Pumps (AREA)
  • Check Valves (AREA)
FR6944323A 1969-06-21 1969-12-22 Expired FR2030920A5 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691931627 DE1931627C3 (de) 1969-06-21 Hydraulischer Teleskopstempel

Publications (1)

Publication Number Publication Date
FR2030920A5 true FR2030920A5 (enrdf_load_stackoverflow) 1970-11-13

Family

ID=5737686

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6944323A Expired FR2030920A5 (enrdf_load_stackoverflow) 1969-06-21 1969-12-22

Country Status (4)

Country Link
US (1) US3656411A (enrdf_load_stackoverflow)
JP (1) JPS4923441B1 (enrdf_load_stackoverflow)
FR (1) FR2030920A5 (enrdf_load_stackoverflow)
GB (1) GB1280899A (enrdf_load_stackoverflow)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3760704A (en) * 1971-12-30 1973-09-25 Polaroid Corp Reflex camera and viewer with a folded optical path
US3961559A (en) * 1974-11-18 1976-06-08 Hiroshi Teramachi Actuator
JPS5293669U (enrdf_load_stackoverflow) * 1976-01-12 1977-07-13
JPS56160449U (enrdf_load_stackoverflow) * 1980-04-30 1981-11-30
US4516468A (en) * 1983-01-10 1985-05-14 Hydraulic Technology Corporation Double acting telescopic cylinder construction
JPS6143865U (ja) * 1984-08-23 1986-03-22 東一郎 柴山 植木鉢
US5209154A (en) * 1990-11-08 1993-05-11 Allied-Signal Inc. Dual area brake actuation piston mechanism
US5953967A (en) * 1996-05-28 1999-09-21 Junkers; John Fluid-operated cylinder-piston unit, and a tool provided therewith
US5927178A (en) * 1997-11-24 1999-07-27 Diebolt International, Inc. Press driven tool actuator module
JP4262879B2 (ja) * 2000-10-10 2009-05-13 カヤバ工業株式会社 リフトシリンダ
US6557456B2 (en) * 2001-05-24 2003-05-06 The Raymond Corporation Cushioned actuator
CN101105133B (zh) * 2007-07-27 2010-05-19 中国矿业大学 双伸缩悬浮式液压立柱
CN101984220A (zh) * 2010-05-28 2011-03-09 金湖小青青机电设备有限公司 双伸缩悬浮液压立柱
CN105020197A (zh) * 2015-07-24 2015-11-04 芜湖市银鸿液压件有限公司 复合式双向液压起升坝油缸及其使用方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2172117A (en) * 1938-05-02 1939-09-05 John M Beaufort Radio antenna
US2378409A (en) * 1942-03-18 1945-06-19 Joseph F Joy Hydraulic elevating mechanism
US2517153A (en) * 1946-08-16 1950-08-01 Gar Wood Ind Inc Telescopic power down hoist
US2813515A (en) * 1955-04-28 1957-11-19 Joy Mfg Co Telescopic uniform pressure providing apparatus
GB977800A (en) * 1962-08-21 1964-12-16 Electro Hydraulics Ltd Improvements in or relating to mine roof supports
BE655844A (enrdf_load_stackoverflow) * 1963-11-29 1965-03-16

Also Published As

Publication number Publication date
DE1931627B2 (de) 1977-06-30
JPS4923441B1 (enrdf_load_stackoverflow) 1974-06-15
GB1280899A (en) 1972-07-05
US3656411A (en) 1972-04-18
DE1931627A1 (de) 1971-01-07

Similar Documents

Publication Publication Date Title
AU465452B2 (enrdf_load_stackoverflow)
FR2030920A5 (enrdf_load_stackoverflow)
AU450150B2 (enrdf_load_stackoverflow)
CS153537B2 (enrdf_load_stackoverflow)
AU442375B2 (enrdf_load_stackoverflow)
CS150502B2 (enrdf_load_stackoverflow)
AU470301B1 (enrdf_load_stackoverflow)
AU442357B2 (enrdf_load_stackoverflow)
AU414607B2 (enrdf_load_stackoverflow)
AU442463B2 (enrdf_load_stackoverflow)
AU442535B2 (enrdf_load_stackoverflow)
AU410358B2 (enrdf_load_stackoverflow)
AU442322B2 (enrdf_load_stackoverflow)
AU442285B2 (enrdf_load_stackoverflow)
AU470661B1 (enrdf_load_stackoverflow)
AU438128B2 (enrdf_load_stackoverflow)
AU5077469A (enrdf_load_stackoverflow)
AU5598769A (enrdf_load_stackoverflow)
AU5228269A (enrdf_load_stackoverflow)
AU5109569A (enrdf_load_stackoverflow)
CS151574B2 (enrdf_load_stackoverflow)
CS150361B1 (enrdf_load_stackoverflow)
CS150296B2 (enrdf_load_stackoverflow)
CS148428B1 (enrdf_load_stackoverflow)
AU4949169A (enrdf_load_stackoverflow)

Legal Events

Date Code Title Description
ST Notification of lapse