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:
Jan. 13, 2015
Filed:
Dec. 23, 2009
Ole Jorgen Holtet, Oslo, NO;
Linn Therese Thuv, Oslo, NO;
Simen Ronne, Kongsberg, NO;
Aker Subsea AS, Lysaker, NO;
Abstract
Force-dampening arrangement () for dampening forces between two interconnectable parts in a tube string, of which interconnectable parts a lower part () is connected to the upper end of a string element () extending into a subsea well () and an upper part () is suspended from a floating surface installation () through at least one suspension element () extending up to said surface installation. The force-dampening arrangement () is connected to the tube string above a string-portion () extending into said subsea well, and below at least a portion of said suspension element (). The force dampening arrangement () exhibits an upper and lower section () that are vertically movable in relation to each other, thereby yielding for impact forces between said interconnectable upper and lower parts () resulting from vertical heave movement of said portion of suspension elements () moving vertically in respect of the string element ().