Control of pressurised fluid flow in reverse circulation drill strings
A Standard patent application filed on 25 January 1996 credited to Elsby, John ; Purcell, Joseph Michael ; Sansead, Brian Thomas

Details

Application number :

42179  

Application type :

Standard  

Application status :

LAPSED  

Under opposition :

No  

Proceeding type :

 

Invention title :

Control of pressurised fluid flow in reverse circulation drill strings  

Inventor :

Elsby, John ; Purcell, Joseph Michael ; Sansead, Brian Thomas  

Agent name :

WATERMARK PATENT AND TRADE MARKS ATTORNEYS  

Address for service :

Level 2 302 Burwood Road HAWTHORN VIC 3122  

Filing date :

25 January 1996  

Associated companies :

 

Applicant name :

Azuko Pty Ltd  

Applicant address :

5 Reggio Road Kewdale WA 6105 Australia  

Old name :

 

Original Source :

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