Abstract: A machining tool may include an elongated body forming a duct therewithin, the duct extending from a proximal inlet at a proximal end of the body to a distal portion of the body having a first lateral opening. The tool may also include a plunger movable between a proximal first position and a distal second position along the duct. The tool may also include a resilient element to press the plunger towards the proximal inlet, and a pivotally deployable blade rotatable between a deployed state, when the plunger is in the first position, and a retracted state, when the plunger is in the second position, wherein the blade is deployable from the first lateral opening.

Abstract: A segmented adjustable arm device comprising a segment chain of a plurality of interconnected segments, wherein adjacent ends of each pair of adjacent segments of the segment chain form a ball and socket joint, one of the adjacent ends of each pair of the adjacent segments presenting a spherical or partially spherical plug and the other end of the adjacent ends presenting a socket configured to receive and hold the plug, allowing relative radial motion between the segments of that pair; and a locking mechanism, including a locking train that includes one or a plurality of rigid elements arranged in series along the segment chain, configured, when subjected to applied pressure, to pull the plurality of interconnected segments away from each other, and increase friction at the ball and socket joint to immobilize motion between adjacent segments.

Abstract: A machining tool may include an elongated body forming a duct therewithin, the duct extending from a proximal inlet at a proximal end of the body to a distal portion of the body having a first lateral opening. The tool may also include a plunger movable between a proximal first position and a distal second position along the duct. The tool may also include a resilient element to press the plunger towards the proximal inlet, and a pivotally deployable blade rotatable between a deployed state, when the plunger is in the first position, and a retracted state, when the plunger is in the second position, wherein the blade is deployable from the first lateral opening.

Abstract: An articulated arm includes an arm segment, the segment attachable to at least one other segment of the arm; a ball-and-socket joint at a distal end of the arm segment, a ball of the joint including a plurality of indentations that are distributed over at least part of the surface of the ball; a rod that is slidable within the arm segment, the rod including at least one pin at its distal end, each pin of said at least one pin being configured to be inserted into an indentation of the plurality of indentations that is aligned with that pin; and an actuator mechanism that is configured to apply a distal force to slide the rod distally to insert each pin of said at least one pin into an indentation of the plurality of indentations.

Abstract: An articulated arm includes an arm segment, the segment attachable to at least one other segment of the arm; a ball-and-socket joint at a distal end of the arm segment, a ball of the joint including a plurality of indentations that are distributed over at least part of the surface of the ball; a rod that is slidable within the arm segment, the rod including at least one pin at its distal end, each pin of said at least one pin being configured to be inserted into an indentation of the plurality of indentations that is aligned with that pin; and an actuator mechanism that is configured to apply a distal force to slide the rod distally to insert each pin of said at least one pin into an indentation of the plurality of indentations.

Abstract: A self-adjusting tool for chamfering an end of a cylinder includes a plurality of legs. A distal segment of each of the legs extends in a forward direction of the tool and is placeable about the end of the cylinder. A central body has a rotatable shaft and a mechanism that is operable by rotation of the shaft about a shaft axis. The mechanism is operable to retract the legs inward in tandem toward the cylinder and to rotate the legs about the shaft axis when further retraction of the legs is blocked by contact with the cylinder. One or a plurality of chamfering blades are each attached to one of the legs. A cutting edge of each blade is oriented diagonally forward and inward.

Abstract: An articulated conduit device may include at least two arms pivotally connected at proximal ends of the arms by a joint, a tiltable adapter at a distal end of each of the arms, capable of tilting up to a predetermined angle, and a locking mechanism operable by a single action to concurrently lock or unlock the arms and adapters in a user-defined orientation and direction. A continuous cavity is defined within the device between external openings in the adapters and through the arms and joint so as to allow fluid to flow between the external openings of the adapters.