Abstract: A connection mechanism (4) comprises first and second components (6, 8) which can be selectively coupled together, one of the first or second components comprises a locking member (25) which is moveable between a first state and a second state, the other of the first or second component comprises means (16) for initially moving the locking member from the first to the second state as the first and second components are initially drawn together and means (19) for returning the locking member to the first state once the first and second components are fully engaged together to prevent disengagement of the first and second components.

Abstract: A controller (30,300) for mounting on or within a downhole tool (10) is provided and comprises a touch operated control device (32, 320; 36) having a touchable surface (34,340) mounted within an aperture (16) formed in a sidewall (15) of the downhole tool (10) such that the touchable surface (34, 340) is outwardly facing and is the radially outermost component of the controller (30, 300) such that an operator may touch the touchable surface (34, 340) without having to disassemble the downhole tool (10). The controller (30, 300) also comprises one or more microprocessors (44) in electrical or electronic communication with the touch operated control device (32, 320; 36), where the microprocessor (44) is capable of being programmed by an operator to instruct the downhole tool (10) to actuate wherein the operator instructs the controller (30, 300) by touching the touchable surface (34, 340) with one or more distinct touches.

Abstract: A connection mechanism (4) comprises first and second components (6, 8) which can be selectively coupled together, one of the first or second components comprises a locking member (25) which is moveable between a first state and a second state, the other of the first or second component comprises means (16) for initially moving the locking member from the first to the second state as the first and second components are initially drawn together and means (19) for returning the locking member to the first state once the first and second components are fully engaged together to prevent disengagement of the first and second components.

Abstract: A controller (30,300) for mounting on or within a downhole tool (10) is provided and comprises a touch operated control device (32, 320; 36) having a touchable surface (34,340) mounted within an aperture (16) formed in a sidewall (15) of the downhole tool (10) such that the touchable surface (34, 340) is outwardly facing and is the radially outermost component of the controller (30, 300) such that an operator may touch the touchable surface (34, 340) without having to disassemble the downhole tool (10). The controller (30, 300) also comprises one or more microprocessors (44) in electrical or electronic communication with the touch operated control device (32, 320; 36), where the microprocessor (44) is capable of being programmed by an operator to instruct the downhole tool (10) to actuate wherein the operator instructs the controller (30, 300) by touching the touchable surface (34, 340) with one or more distinct touches.