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:
Mar. 29, 2016
Filed:
Oct. 12, 2007
Applicant:
Arne Veland, Bergen, NO;
Inventor:
Arne Veland, Bergen, NO;
Assignee:
FRAMO ENGINEERING AS, Bergen, NO;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 35/04 (2006.01); F04B 53/16 (2006.01); F04D 29/10 (2006.01); F16J 15/40 (2006.01);
U.S. Cl.
CPC ...
F04B 53/164 (2013.01); F04D 29/108 (2013.01); F16J 15/406 (2013.01); F16J 15/40 (2013.01);
Abstract
The present invention relates to a dynamic sealing system device for a submerged pump comprising at least one feed line running in towards the dynamic sealing system, with a first valve device arranged in the feed line and a second valve device arranged such that in an open position it opens a first bypass line that runs from a point on the feed line between the first valve device and the pump and a low-pressure source at the pump to reduce the pressure in a barrier fluid in the sealing system. The invention also comprises a method for reducing the barrier fluid pressure for a submerged pump.