The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 20, 2004
Filed:
Mar. 19, 2002
Applicant:
Inventor:
Roger Phillip Ashworth, Loughborough, GB;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 1/700 ;
U.S. Cl.
CPC ...
F16L 1/700 ;
Abstract
A running fluid seal arrangement ( ) includes a passage for receiving cable ( ) with chambers ( and ). Water at a higher pressure than gas in main ( ) is pumped via pump ( ) into chamber ( ) from a reservoir ( ). A mixture of gas and water from the interface in the region of chamber ( ) is passed to a sealed pressure vessel ( ). Water therefrom can pass back to reservoir via float valve ( ). Wiper seals ( and ) can also be provided.