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:
Aug. 11, 2015
Filed:
Oct. 19, 2010
Christian Borchgrevink, Langhus, NO;
Paula Guimaraes, Porto, PT;
Christopher A. Flidh, Porto, PT;
Christian Borchgrevink, Langhus, NO;
Jon Flidh, Mjondalen, NO;
Vetco Gray Scandinavia AS, Sandvika, NO;
Abstract
A subsea valve actuator is disclosed, comprising an override shaft () reaching from inside a fluid filled and pressure compensated actuator housing () to the exterior thereof via a bearing and sealing arrangement (), wherein a visual valve position indicator () is arranged exterior to the actuator housing. The visual indicator () is pivotally mounted to the override shaft and guided non-rotatably to be forced in axial displacement on the override shaft when the override shaft is rotated, wherein the mounting of the visual indicator () on the override shaft () is encased in a fluid filled, pressure compensated indicator mounting enclosure () surrounding the override shaft () in sealing () relation outside of the actuator housing ().