CA1023727A - Soupape d'arret du surete - Google Patents

Soupape d'arret du surete

Info

Publication number
CA1023727A
CA1023727A CA261,506A CA261506A CA1023727A CA 1023727 A CA1023727 A CA 1023727A CA 261506 A CA261506 A CA 261506A CA 1023727 A CA1023727 A CA 1023727A
Authority
CA
Canada
Prior art keywords
valve
safety shut
shut
safety
Prior art date
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
CA261,506A
Other languages
English (en)
Inventor
Richard E. Wells
Victor E. Derval
John D. Muchow
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.)
Willis Oil Tool Co
Original Assignee
Willis Oil Tool Co
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 US05/440,125 external-priority patent/US3958592A/en
Application filed by Willis Oil Tool Co filed Critical Willis Oil Tool Co
Priority to CA261,506A priority Critical patent/CA1023727A/fr
Application granted granted Critical
Publication of CA1023727A publication Critical patent/CA1023727A/fr
Expired legal-status Critical Current

Links

CA261,506A 1974-02-06 1976-09-20 Soupape d'arret du surete Expired CA1023727A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA261,506A CA1023727A (fr) 1974-02-06 1976-09-20 Soupape d'arret du surete

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US05/440,125 US3958592A (en) 1974-02-06 1974-02-06 Safety shut-off valve
CA218,331A CA1012954A (en) 1974-02-06 1975-01-21 Safety shut-off valve
CA261,506A CA1023727A (fr) 1974-02-06 1976-09-20 Soupape d'arret du surete

Publications (1)

Publication Number Publication Date
CA1023727A true CA1023727A (fr) 1978-01-03

Family

ID=27163790

Family Applications (1)

Application Number Title Priority Date Filing Date
CA261,506A Expired CA1023727A (fr) 1974-02-06 1976-09-20 Soupape d'arret du surete

Country Status (1)

Country Link
CA (1) CA1023727A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107269861A (zh) * 2016-04-06 2017-10-20 上海电站阀门厂有限公司 一种排污疏水阀

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107269861A (zh) * 2016-04-06 2017-10-20 上海电站阀门厂有限公司 一种排污疏水阀

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Legal Events

Date Code Title Description
MKEX Expiry

Effective date: 19950103