A portable device for precision plasma and oxy-fuel torch cutting is provided. Versions of an example portable cutting torch tool guide the gun of a cutting torch to make precision linear cuts or curved cuts in a metal workpiece. In an implementation, the device is a gun for a cutting torch, with an integrated rail follower and adjustable vertical and horizontal offsets from a workpiece. The cutting torch tool may use various kinds of rails for stable cuts, with optional movement damping, motorized drive, servos for vertical and horizontal offset, and remote control with user interface.

A portable device for precision plasma and oxy-fuel torch cutting is provided. Versions of an example portable cutting torch tool guide the gun of a cutting torch to make precision linear cuts or curved cuts in a metal workpiece. In an implementation, the device is a gun for a cutting torch, with an integrated rail follower and adjustable vertical and horizontal offsets from a workpiece. The cutting torch tool may use various kinds of rails for stable cuts, with optional movement damping, motorized drive, servos for vertical and horizontal offset, and remote control with user interface.

A surgical instrument includes a handle assembly having a gear drive mechanism. The gear drive mechanism includes a variable radius gear to provide a desired mechanical advantage to a user during actuation of a movable handle of the surgical instrument.

A surgical instrument includes a handle assembly having a gear drive mechanism. The gear drive mechanism includes a variable radius gear to provide a desired mechanical advantage to a user during actuation of a movable handle of the surgical instrument.

A water ejecting apparatus includes a case and a water ejection unit connected to one side of the case. The water ejection unit includes a fixed cover, a lifting cover, a lifting motor, a water ejection nozzle, a touch bar, a detection sensor, and a controller. The fixed cover is connected to the case. The lifting cover is movably received in the fixed cover and coupled to the lifting motor. The water ejection nozzle is installed at a lower end of the lifting cover and configured to eject water. The touch bar is at least partially received in the lifting cover and moves when in contact with a container placed below the water ejection nozzle. The detection sensor detects movement of the touch bar. The controller changes operation of the lifting motor when the detection sensor detects movement of the touch bar.

A water ejecting apparatus includes a case and a water ejection unit connected to one side of the case. The water ejection unit includes a fixed cover, a lifting cover, a lifting motor, a water ejection nozzle, a touch bar, a detection sensor, and a controller. The fixed cover is connected to the case. The lifting cover is movably received in the fixed cover and coupled to the lifting motor. The water ejection nozzle is installed at a lower end of the lifting cover and configured to eject water. The touch bar is at least partially received in the lifting cover and moves when in contact with a container placed below the water ejection nozzle. The detection sensor detects movement of the touch bar. The controller changes operation of the lifting motor when the detection sensor detects movement of the touch bar.

A device actuation system for actuating a treatment device includes a first drive gear rotatably mountable to the treatment device, a coupler rail slidably mountable to the treatment device, a second drive gear rotatably mountable to the coupler rail, and a coupler gear rotatably mountable to the treatment device and engageable with the coupler rail. In addition, the device actuation system includes a drive rail locatable between the first drive gear and the second drive gear of the gear system. The coupler gear is rotatable to move the coupler rail in a manner maintaining the second drive gear in continuous engagement with the drive rail against the first drive gear. The first drive gear and the second drive gear are rotatable in a manner causing at least one of translation and rotation of the treatment device relative to the drive rail.

A water ejecting apparatus includes a case and a water ejection unit connected to the case. The water ejection unit includes a fixed cover connected to the case, having atop dead point and a bottom dead point, and including a lifting gear provided between the top dead point and the bottom dead point, a lifting cover movably coupled to the fixed cover, a lifting motor coupled to the lifting cover and a gear module interworking with the lifting motor and the lifting gear, a water ejection nozzle for ejecting water, a signal detecting unit that detects a frequency generation (FG) signal generated by the lifting motor during an operation of the lifting motor, and a controller configured to control the operation of the lifting motor upon determining that the lifting cover reaches the top dead point or the bottom dead point based on the FG signal.

A water ejecting apparatus includes a case and a water ejection unit connected to the case. The water ejection unit includes a fixed cover connected to the case, having atop dead point and a bottom dead point, and including a lifting gear provided between the top dead point and the bottom dead point, a lifting cover movably coupled to the fixed cover, a lifting motor coupled to the lifting cover and a gear module interworking with the lifting motor and the lifting gear, a water ejection nozzle for ejecting water, a signal detecting unit that detects a frequency generation (FG) signal generated by the lifting motor during an operation of the lifting motor, and a controller configured to control the operation of the lifting motor upon determining that the lifting cover reaches the top dead point or the bottom dead point based on the FG signal.

A reciprocating injection pump with a reciprocating block driven by a rotating gear, the gear having a substantially circular shape with gear teeth formed on the rotating gear the rotating gear is attached to a rotating motor.