NL191953C - Safety valve. - Google Patents

Safety valve.

Info

Publication number
NL191953C
NL191953C NL8004936A NL8004936A NL191953C NL 191953 C NL191953 C NL 191953C NL 8004936 A NL8004936 A NL 8004936A NL 8004936 A NL8004936 A NL 8004936A NL 191953 C NL191953 C NL 191953C
Authority
NL
Netherlands
Prior art keywords
safety valve
safety
valve
Prior art date
Application number
NL8004936A
Other languages
Dutch (nl)
Other versions
NL191953B (en
NL8004936A (en
Original Assignee
Okano Valve Seizo Kk
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
Application filed by Okano Valve Seizo Kk filed Critical Okano Valve Seizo Kk
Publication of NL8004936A publication Critical patent/NL8004936A/en
Publication of NL191953B publication Critical patent/NL191953B/en
Application granted granted Critical
Publication of NL191953C publication Critical patent/NL191953C/en

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
    • F16K17/08—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
    • F16K17/087—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 with bellows
NL8004936A 1980-05-06 1980-08-29 Safety valve. NL191953C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5867580A JPS56156568A (en) 1980-05-06 1980-05-06 Safety valve
JP5867580 1980-05-06

Publications (3)

Publication Number Publication Date
NL8004936A NL8004936A (en) 1981-12-01
NL191953B NL191953B (en) 1996-07-01
NL191953C true NL191953C (en) 1996-11-04

Family

ID=13091146

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8004936A NL191953C (en) 1980-05-06 1980-08-29 Safety valve.

Country Status (4)

Country Link
JP (1) JPS56156568A (en)
CA (1) CA1162129A (en)
DE (1) DE3041124C2 (en)
NL (1) NL191953C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3556565B2 (en) * 2000-04-14 2004-08-18 川重冷熱工業株式会社 High precision safety valve
CN103511693B (en) * 2013-09-29 2015-08-26 北京航天动力研究所 Backpressure regulation formula steam security valve closed by a kind of valve stem seal type

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3702142A (en) * 1970-07-27 1972-11-07 Dresser Ind Safety valve having back pressure compensator

Also Published As

Publication number Publication date
JPS56156568A (en) 1981-12-03
DE3041124C2 (en) 1988-01-21
DE3041124A1 (en) 1981-11-19
NL191953B (en) 1996-07-01
NL8004936A (en) 1981-12-01
JPS634065B2 (en) 1988-01-27
CA1162129A (en) 1984-02-14

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Legal Events

Date Code Title Description
A1A A request for search or an international-type search has been filed
BB A search report has been drawn up
A85 Still pending on 85-01-01
BC A request for examination has been filed
V4 Lapsed because of reaching the maxim lifetime of a patent

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