发明名称 A TELESCOPIC ELEVATOR BAIL, VESSEL COMPRISING SUCH THE ELEVATOR BAIL AND METHOD OF USING THE ELEVATOR BAIL
摘要 <p>A telescopic elevator bail (1) arranged to be able to be use dynamically in well operations in the petroleum industry where the elevator bail (1) comprises a sleeve (2) provided with a first attachment organ (24) and a muzzle portion (28) and a rod (3) arranged to be able to be displaced telescopically relative to the sleeve (2) along the common longitudinal axis of the sleeve (2) and the rod (3); and the rod 3 being provided with at least one through hole (36; 36'; 36'') perpendicularly to the longitudinal axis of the rod (3) and the hole (36; 36'; 36'') being arranged to be able to accommodate an actuator actuable holding bolt (42), and where the sleeve (2) is provided with at least one catch bolt (5); the catch bolt (5) being provided with an inward projecting holding portion (53); and that the rod (3) is provided with a first shoulder portion (54) arranged to rest on the holding portion (53) of the catch bolt (5) when the sleeve (2) and the rod (3) exhibit their relatively longest longitudinal dis placement. Also described is a method for utilizing the elevator bail (1).</p>
申请公布号 EP2585670(A2) 申请公布日期 2013.05.01
申请号 EP20110798428 申请日期 2011.06.23
申请人 SCAN TECH PRODUKT AS 发明人 OEVERLAND, MORTEN
分类号 E21B19/06;B66C1/66;E21B19/02 主分类号 E21B19/06
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