NL296090A - - Google Patents

Info

Publication number
NL296090A
NL296090A NL296090DA NL296090A NL 296090 A NL296090 A NL 296090A NL 296090D A NL296090D A NL 296090DA NL 296090 A NL296090 A NL 296090A
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 NL296090A publication Critical patent/NL296090A/xx

Links

Classifications

    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0493—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with a spring other than a helicoidal spring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F3/00—Devices, e.g. jacks, adapted for uninterrupted lifting of loads
    • B66F3/24—Devices, e.g. jacks, adapted for uninterrupted lifting of loads fluid-pressure operated
    • B66F3/25—Constructional features
    • B66F3/42—Constructional features with self-contained pumps, e.g. actuated by hand
    • 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
    • E21D15/50—Component parts or details of props
    • E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
    • E21D15/512—Arrangement of valves
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0446—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with an obturating member having at least a component of their opening and closing motion not perpendicular to the closing faces
    • 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
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
    • F16K17/0466—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with a special seating surface

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Structural Engineering (AREA)
  • Safety Valves (AREA)
NL296090D 1961-10-25 NL296090A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
LU40753 1961-10-25
DE1962B0068786 DE1264908C2 (en) 1961-10-25 1962-09-10 OVERPRESSURE VALVE, ESPECIALLY FOR HIGH PRESSURES

Publications (1)

Publication Number Publication Date
NL296090A true NL296090A (en)

Family

ID=25966374

Family Applications (3)

Application Number Title Priority Date Filing Date
NL284181D NL284181A (en) 1961-10-25
NL130143D NL130143C (en) 1961-10-25
NL296090D NL296090A (en) 1961-10-25

Family Applications Before (2)

Application Number Title Priority Date Filing Date
NL284181D NL284181A (en) 1961-10-25
NL130143D NL130143C (en) 1961-10-25

Country Status (6)

Country Link
AT (1) AT285261B (en)
BE (1) BE624042A (en)
DE (2) DE1258224C2 (en)
GB (2) GB1009755A (en)
LU (1) LU40753A1 (en)
NL (3) NL296090A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50113819A (en) * 1974-02-19 1975-09-06
US4328290A (en) * 1980-12-29 1982-05-04 Gould Inc. Battery vent plug
FR2728648B1 (en) * 1994-12-27 1997-01-31 Comap SAFETY VALVE
GB2494274A (en) * 2011-08-27 2013-03-06 Stephen Terence Dunne Normally-Closed Valve with Elastomeric Spring
CN103924993A (en) * 2014-03-20 2014-07-16 赵士民 Long-distance visible high-flow pressure display and memory type safety valve
DE102015208777A1 (en) * 2015-05-12 2016-11-17 Bayerische Motoren Werke Aktiengesellschaft Safety device for an energy storage cell
CN111911214B (en) * 2020-06-24 2022-07-05 中煤科工开采研究院有限公司 Method for monitoring working state of safety valve of hydraulic support

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH219734A (en) * 1940-11-07 1942-02-28 Nussbaum & Co Aktiengesellscha Seal with regulating device on shut-off valves.
GB608881A (en) * 1946-01-24 1948-09-22 Fairey Aviat Co Ltd Improvements in or relating to hydraulic relief valves
US2669252A (en) * 1950-02-21 1954-02-16 Farris Victor Wallace Safety valve
US2669253A (en) * 1951-06-21 1954-02-16 Crane Co Combined shutoff and relief valve
DE1000203B (en) * 1953-11-14 1957-01-03 Gutehoffnungshuette Sterkrade Pressure relief valve for hydraulically operated lifting or support devices, especially for hydraulic pit rams
US2887770A (en) * 1955-06-06 1959-05-26 Nat Malleable & Steel Castings Method of stabilizing and processing cushioning units

Also Published As

Publication number Publication date
DE1264908B (en) 1968-03-28
BE624042A (en)
AT285261B (en) 1970-10-27
LU40753A1 (en) 1963-04-25
DE1264908C2 (en) 1976-03-18
DE1258224B (en) 1968-01-04
NL284181A (en)
NL130143C (en)
GB1042500A (en) 1966-09-14
GB1009755A (en) 1965-11-10
DE1258224C2 (en) 1973-02-01

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