PL112051B1 - Valve protecting against crumps - Google Patents

Valve protecting against crumps Download PDF

Info

Publication number: PL112051B1
Authority: PL; Poland
Prior art keywords: valve; valve body; piston; cylinder; seat
Prior art date: 1976-02-12

Application number

PL19526677A

Other languages

English (en)

Polish (pl)

Other versions

PL195266A1 (pl

Inventor

Siegfried Sigott

Heinrich Sussenbeck

Gottfrid Siebenhofer

Alfred Zitz

Original Assignee

Voest Ag

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.)

1976-02-12

Filing date

1977-01-12

Publication date

1980-09-30

1977-01-12 Application filed by Voest Ag filed Critical Voest Ag

1978-06-19 Publication of PL195266A1 publication Critical patent/PL195266A1/xx

1980-09-30 Publication of PL112051B1 publication Critical patent/PL112051B1/pl

Links

238000010079 rubber tapping Methods 0.000 claims description 13
239000007788 liquid Substances 0.000 claims description 10
239000010720 hydraulic oil Substances 0.000 claims description 7
239000012530 fluid Substances 0.000 claims description 6
229910000906 Bronze Inorganic materials 0.000 claims description 3
239000010974 bronze Substances 0.000 claims description 3
KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 3
239000003566 sealing material Substances 0.000 claims description 3
238000000034 method Methods 0.000 claims 1
230000003245 working effect Effects 0.000 claims 1
239000007789 gas Substances 0.000 description 23
239000003921 oil Substances 0.000 description 8
238000009412 basement excavation Methods 0.000 description 3
238000007789 sealing Methods 0.000 description 3
IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
229920003023 plastic Polymers 0.000 description 2
239000004033 plastic Substances 0.000 description 2
229920000915 polyvinyl chloride Polymers 0.000 description 2
239000004800 polyvinyl chloride Substances 0.000 description 2
239000011435 rock Substances 0.000 description 2
238000011144 upstream manufacturing Methods 0.000 description 2
229910001208 Crucible steel Inorganic materials 0.000 description 1
238000011109 contamination Methods 0.000 description 1
230000003111 delayed effect Effects 0.000 description 1
230000000694 effects Effects 0.000 description 1
239000002360 explosive Substances 0.000 description 1
230000002349 favourable effect Effects 0.000 description 1
238000003780 insertion Methods 0.000 description 1
230000037431 insertion Effects 0.000 description 1
239000000463 material Substances 0.000 description 1
239000002184 metal Substances 0.000 description 1
229910052757 nitrogen Inorganic materials 0.000 description 1

Classifications

- 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
- 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
- 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
- F16K17/08—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 special arrangements for providing a large discharge passage

Landscapes

Engineering & Computer Science (AREA)
Mining & Mineral Resources (AREA)
Mechanical Engineering (AREA)
General Life Sciences & Earth Sciences (AREA)
Geochemistry & Mineralogy (AREA)
Geology (AREA)
Life Sciences & Earth Sciences (AREA)
General Engineering & Computer Science (AREA)
Structural Engineering (AREA)
Details Of Valves (AREA)
Respiratory Apparatuses And Protective Means (AREA)
Characterised By The Charging Evacuation (AREA)
Separation By Low-Temperature Treatments (AREA)

PL19526677A 1976-02-12 1977-01-12 Valve protecting against crumps PL112051B1 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
AT100776A AT342538B (de)	1976-02-12	1976-02-12	Gebirgsschlagventil

Publications (2)

Publication Number	Publication Date
PL195266A1 PL195266A1 (pl)	1978-06-19
PL112051B1 true PL112051B1 (en)	1980-09-30

Family

ID=3504782

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
PL19526677A PL112051B1 (en)	1976-02-12	1977-01-12	Valve protecting against crumps

Country Status (2)

Country	Link
AT (1)	AT342538B (de)
PL (1)	PL112051B1 (de)

1976
- 1976-02-12 AT AT100776A patent/AT342538B/de not_active IP Right Cessation
1977
- 1977-01-12 PL PL19526677A patent/PL112051B1/pl unknown

Also Published As

Publication number	Publication date
ATA100776A (de)	1977-08-15
PL195266A1 (pl)	1978-06-19
AT342538B (de)	1978-04-10

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