Modular top drive

Details Modular top drive Modular top drive

2006-12-20

2010-11-09

Wright, Giovanna C (Department: 3672)

Boring or penetrating the earth

With above-ground means to feed tool

C175S087000, C175S203000, C166S077510

Reexamination Certificate

active

07828085

ABSTRACT:
A top drive system with a plurality of top drive modules, which are configured to be quickly exchanged. The top drive modules may include any or all of the following: a main body module, a gearbox module, a drive motor module, a pipe handler module, an upper fluid module, a lower well control valve module, a block interface module, a retract system interface frame module, a cooling system module, a work platform guard module, and a quill saver sub module. Alternatively, the top drive may comprise a first top drive and a second top drive which are configured to be quickly exchanged.

REFERENCES:
patent: 2937008 (1960-05-01), Whittle
patent: 4813493 (1989-03-01), Shaw et al.
patent: 5921329 (1999-07-01), Armstrong
patent: 6725949 (2004-04-01), Seneviratne
patent: 7500531 (2009-03-01), Williams et al.
patent: 2006/0096751 (2006-05-01), Brown et al.
patent: 2007/0039758 (2007-02-01), Klipstein
International Search Report for PCT/US06/62414.

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