Wells – Processes – Cleaning or unloading well
Reexamination Certificate
2004-11-23
2010-12-28
Stephenson, Daniel P (Department: 3676)
Wells
Processes
Cleaning or unloading well
C166S173000
Reexamination Certificate
active
07857058
ABSTRACT:
A downhole swivel joint assembly comprising an upper component and a lower component. The components may assume either of two stable positions relative to each other, namely an unactivated configuration in which the components are rotationally fast with each other by virtue of the inter-engagement of splines of the lower component with splines of the upper component and an activated configuration in which the respective splines are disengaged so that the upper and lower components can rotate relative to each other. In the activated configuration the upper component is supported relative to the lower component on a ball bearing pack. Movement of the components between the activated and unactivated configurations is controlled by a resiliently deformable latch member which is C-shaped in transverse cross-section. The latch member has an internal profile which co-operates with an external profile provided on the upper component mandrel to allow the upper and lower components to snap between the activated and unactivated configurations.
REFERENCES:
patent: 3690122 (1972-09-01), Kisling et al.
patent: 4632193 (1986-12-01), Geczy
patent: 4986690 (1991-01-01), Cooksey
patent: 5139090 (1992-08-01), Land
patent: 5697768 (1997-12-01), Mills
patent: 6082457 (2000-07-01), Best et al.
patent: 6241032 (2001-06-01), Falgout, Sr.
patent: 6244345 (2001-06-01), Helms
patent: 6516878 (2003-02-01), McGarian et al.
patent: 7011162 (2006-03-01), Maguire
patent: 7178611 (2007-02-01), Zupanick
patent: 7281584 (2007-10-01), McGarian et al.
patent: 7506704 (2009-03-01), McGarian et al.
patent: 2004/0045704 (2004-03-01), Bowles
patent: 2008/0236841 (2008-10-01), Howlett et al.
patent: 9829637 (1998-07-01), None
McGarian Bruce
Tulloch Rory McCrae
Dykema Gossett PLLC
Smith International Inc.
Stephenson Daniel P
LandOfFree
Downhole swivel joint assembly and method of using said... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Downhole swivel joint assembly and method of using said..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Downhole swivel joint assembly and method of using said... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4231706