Abstract

The invention provides a bit breaker comprising a generally flat plate that defines two arms and a base leg. The two arms project respectively from opposed ends of the base leg. The bit breaker has a generally rectangular pipe slot located between the two arms. The bit breaker includes a jaw mounted on one of the arms so as to be removable therefrom when damaged and thereafter replaced with a new jaw. The jaw defines a working surface located on a side of the pipe slot. In some embodiments, the bit breaker further comprises a security plate attached to the generally flat plate so as to define a mount space between the generally flat plate and the security plate. The jaw is received in the mount space such that the jaw has limited freedom of movement relative to both the generally flat plate and the security plate.

IPC Classes  ?

• E21B 19/18 - Connecting or disconnecting drill bit and drilling pipe

Abstract

The invention provides a bit breaker comprising a plate that bounds a pipe slot. The bit breaker has at least one jaw that defines a working surface on a side of the pipe slot. In some embodiments, the invention is an assembly that further includes a pipe, tool section, tool or pipe joint received in the pipe slot. In such embodiments, the pipe, tool section, tool or pipe joint has formed therein two crosswise grooves located on opposite sides of the pipe, tool section, tool or pipe joint. In some cases, the plate defines two fixed arms and a fixed base leg, and the bit breaker has two jaws mounted respectively on the two fixed arms. The bit breaker may also have an adjustable arm such that the pipe slot can be surrounded about 360 degrees by the bit breaker.

IPC Classes  ?

• E21B 17/04 - CouplingsJoints between rod and bit, or between rod and rod
• E21B 19/16 - Connecting or disconnecting pipe couplings or joints
• E21B 19/18 - Connecting or disconnecting drill bit and drilling pipe

Abstract

The invention provides a bit breaker comprising a plate that bounds a pipe slot. The bit breaker has two jaws that are at least generally parallel and that respectively define two working surfaces located on opposite sides of the pipe slot. The jaws are each mounted removably to the plate. In some embodiments, the invention is an assembly that further includes a pipe, tool section, tool or pipe joint received in the pipe slot. The pipe, tool section, tool or pipe joint has formed therein two crosswise grooves located on opposite sides of the pipe, tool section, tool or pipe joint. In some embodiments, the plate defines two fixed arms and a fixed base leg, with the two jaws mounted respectively against the two fixed arms. The bit breaker can have an adjustable arm such that the pipe slot can be surrounded about 360 degrees by the bit breaker.

IPC Classes  ?

• E21B 19/18 - Connecting or disconnecting drill bit and drilling pipe

Abstract

The invention provides a bit breaker comprising a plate that bounds a pipe slot. The bit breaker has two jaws that define two working surfaces located on opposite sides of the pipe slot. The two jaws are configured to move relative to the plate. In some embodiments, the invention is an assembly that further includes a pipe, tool section, tool or pipe joint received in the pipe slot. The pipe, tool section, tool or pipe joint has formed therein two crosswise grooves located on opposite sides of the pipe, tool section, tool or pipe joint. In some embodiments, the plate defines two fixed arms and a fixed base leg, with the two jaws mounted respectively against the two fixed arms. The bit breaker can have an adjustable arm such that the pipe slot can be surrounded about 360 degrees by the bit breaker.

IPC Classes  ?

• F16L 55/32 - Constructional aspects of the propulsion means, e.g. towed by cables being self-contained
• E21B 19/18 - Connecting or disconnecting drill bit and drilling pipe