AU643030B2 - Minimum pressure retaining non-return valve - Google Patents

Minimum pressure retaining non-return valve

Info

Publication number
AU643030B2
AU643030B2 AU79139/91A AU7913991A AU643030B2 AU 643030 B2 AU643030 B2 AU 643030B2 AU 79139/91 A AU79139/91 A AU 79139/91A AU 7913991 A AU7913991 A AU 7913991A AU 643030 B2 AU643030 B2 AU 643030B2
Authority
AU
Australia
Prior art keywords
return valve
minimum pressure
pressure retaining
retaining non
non
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.)
Ceased
Application number
AU79139/91A
Other versions
AU7913991A (en
Inventor
John Papanastasiou
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.)
Comweld Group Pty Ltd
Original Assignee
Comweld Group Pty Ltd
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 to AUPK0753 priority Critical
Priority to AUPK075390 priority
Application filed by Comweld Group Pty Ltd filed Critical Comweld Group Pty Ltd
Priority to AU79139/91A priority patent/AU643030B2/en
Publication of AU7913991A publication Critical patent/AU7913991A/en
Application granted granted Critical
Publication of AU643030B2 publication Critical patent/AU643030B2/en
Anticipated expiration legal-status Critical
Application status is Ceased legal-status Critical

Links

AU79139/91A 1990-06-21 1991-06-19 Minimum pressure retaining non-return valve Ceased AU643030B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AUPK0753 1990-06-21
AUPK075390 1990-06-21
AU79139/91A AU643030B2 (en) 1990-06-21 1991-06-19 Minimum pressure retaining non-return valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AU79139/91A AU643030B2 (en) 1990-06-21 1991-06-19 Minimum pressure retaining non-return valve

Publications (2)

Publication Number Publication Date
AU7913991A AU7913991A (en) 1992-01-02
AU643030B2 true AU643030B2 (en) 1993-11-04

Family

ID=25639190

Family Applications (1)

Application Number Title Priority Date Filing Date
AU79139/91A Ceased AU643030B2 (en) 1990-06-21 1991-06-19 Minimum pressure retaining non-return valve

Country Status (1)

Country Link
AU (1) AU643030B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU5138190A (en) * 1985-11-18 1990-07-05 Fresenius Ag Check valve

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU5138190A (en) * 1985-11-18 1990-07-05 Fresenius Ag Check valve

Also Published As

Publication number Publication date
AU7913991A (en) 1992-01-02

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired