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:
Jul. 17, 2001
Filed:
Jul. 02, 1999
Joseph William Pallini, Jr., Tomball, TX (US);
Jerry Keith Rhodes, Conroe, TX (US);
ABB Vetco Gray, Inc., Houston, TX (US);
Abstract
An internal tieback connector for connecting a riser from a platform to a subsea wellhead having internal grooves and a casing hanger therein. The connector has an inner body which carries a lower housing adapted to land on the wellhead. A plurality of dogs abut the lower housing and are adapted to engage and lift the inner body relative to the lower housing. An upper housing is carried on the inner body and adapted to force the dogs inward into engagement with the inner body. A plurality of latch members are carried on the inner body and are adapted to engage the internal grooves when the internal is moved upward relative to the lower housing.