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:
Oct. 10, 2000
Filed:
Dec. 31, 1997
Scott K Beall, Houston, TX (US);
Kvaerner Oilfield Products, Houston, TX (US);
Abstract
A connector device for connecting a wellhead christmas tree assembly to a wellhead wherein the device comprises a cylindrical body adapted to be placed in sleeved relationship to the wellhead and having means for attaching a wellhead christmas tree assembly in coaxial relation therewith. The cylindrical body member is further provided with a plurality of lateral openings in equiangular relationship with respect to the axis of the body member. The connector further includes a plurality of locking dogs, each having a toothed front face in conforming configuration with the wellhead exterior and each disposed in a different one of the lateral openings. The connector also includes a first drive means comprising a locking sleeve with an internal camming surface for interacting with a matching cam surface on the back face of each of the locking dogs and adapted by an actuator to drive the locking dogs into locking engagement with the wellhead. The taper of the matching cam surfaces is sufficiently small such that when the drive force is removed, the locking dogs remain in their locking condition. The device also includes a second drive means for forcibly moving the locking dogs away from the wellhead to disconnect from the wellhead where a disconnect is desired.