Static structures (e.g. – buildings) – Mechanism operated relatively movable shaft assembly – Opposed barrier-engaging; e.g. – rock drill column
Reexamination Certificate
2005-10-04
2005-10-04
Friedman, Carl D. (Department: 3635)
Static structures (e.g., buildings)
Mechanism operated relatively movable shaft assembly
Opposed barrier-engaging; e.g., rock drill column
C052S117000, C052S118000, C052S119000, C052S120000, C175S321000, C175S322000
Reexamination Certificate
active
06951082
ABSTRACT:
A telescoping rig with an upper mast telescopingly received within a lower mast. A torque carrier is formed of an upper part suspended within the upper mast and a lower part attached to the lower mast. The lower part may be secured to the upper part when the rig is in operational position, and is movable to allow the upper mast to move into a telescoped position within the lower mast. The rig is readied for transport by disconnecting upper and lower parts of a torque carrier, moving the lower torque carrier laterally within the lower mast to allow the upper mast to telescope within the lower mast; and telescoping the upper mast within the lower mast.
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Product information brochure entitled “Integraline 150iH Top Drive for Double Rigs.” Estec Oilfield, May 30, 2002. 4 pages.
Product information brochure entitled “Integraline 150iH Top Drive: Designed specifically for double and super-single rigs.” Estec Oilfield, Nov. 28, 2001. 2 pages.
Mattock Mark E.
Nelson Allan R.
Allan R. Nelson Engineering (1977)
Amiri Nahid
Friedman Carl D.
Lambert Anthony R.
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