The present invention is a digging auger. The digging auger comprises a shaft with a proximal end and a distal end. The digging auger also comprises a screw extending from the proximal end to the distal end of the shaft. The digging auger further comprises a paddle attachment adapted to be removably attached at the proximal end of the shaft. The paddle attachment comprises two pieces of rubber strips arranged on opposing sides of the shaft and extending generally radially outwards therefrom.

A cutting head includes a main body that is attachable to an ice drill shaft at a top side. The main body includes a bottom side that has a bottom peripheral surface. The cutting head includes at least one cutting edge that is disposed on the main body. The cutting edge is configured to perform a cutting operation at the bottom side of the main body. The cutting head includes a cutting rate control pad that is disposed on the bottom side of the main body. The cutting rate control pad extends away from the bottom peripheral surface.

A cutting head includes a main body that is attachable to an ice drill shaft at a top side. The main body includes a bottom side that has a bottom peripheral surface. The cutting head includes at least one cutting edge that is disposed on the main body. The cutting edge is configured to perform a cutting operation at the bottom side of the main body. The cutting head includes a cutting rate control pad that is disposed on the bottom side of the main body. The cutting rate control pad extends away from the bottom peripheral surface.

A method for repairing an ice of an ice field comprising drilling, by an ice repairing apparatus, at least one hole to the ice of the ice field to remove, at least partly, a damaged ice, providing a solid ice insert having substantially the same size as the at least one hole, and inserting the ice insert into the at least hole such that a top surface of the ice insert is substantially on the same level with a surface of the ice of the ice field. An ice repairing apparatus comprising a rotating blade configured to drill a hole to an ice of an ice field, a rotating shaft configured to rotate the blade, wherein the shaft comprises a first end coupled with the blade, and a second end configured to be coupled with a power source for rotating the shaft; and a limiter coupled with the shaft configured to set against a surface of the ice and to prevent drilling of the blade into the ice when a desired depth of the hole is achieved. An ice repairing arrangement comprising an ice repairing apparatus, a mould for producing at least one ice insert, and freezer configured to freeze and/or to keep frozen at least one ice insert.

A drill assembly attachment having a handle, a drill mount, and a throttle. The throttle may have a first portion and a second portion rotationally engaged with the first portion such that the second portion is rotationally actuated in response to linear actuation of the first portion of the throttle. The throttle is positioned with respect to the drill mount and the handle such that the first portion may be linearly actuated by a user with a hand grasping the handle. The drill assembly attachment receives a drill assembly such that the throttle adjustably engages a trigger of the drill assembly. The drill assembly attachment or the drill assembly receives an auger or other tool and the drill assembly attachment with the drill assembly and auger or other tool is used in a method of rotating the auger or other tool.

The present invention discloses an impact ice driller, which comprises a frame; a motor; a rotatable drill stem; a stationary element and a rotatable element disposed along a same axis and facing each other; wherein the stationary element is connected to the frame; the rotatable element is connected to the drill stem and synchronously moves with the drill stem as driven by the motor; the stationary element and the rotatable element each has an irregular surface capable of engaging with each other on each opposite surface, when the rotatable element rotates, the irregular surface of the stationary element and the irregular surface of the rotatable element can repeat engagement and separation, so that the rotatable element can repeat the movement along an axis relative to the stationary element. In this way, the drill stem can produce up-and-down impacts on ice cover ceaselessly in the ice drilling process with good ice drilling effect.

An auger rig for use for a portable ice auger is disclosed. The rig includes a support structure and an auger carriage movable between a raised position and a lowered position via a drive mechanism for drilling an ice hole. In illustrated embodiments, the rig is connectable to a vehicle or wheeled apparatus through a hitch attachment for transport. As described, the rig includes a throttle control feature to retain an auger in an idle mode while in the raised position and engage and rotate the blade of the auger as the auger carriage is lowered to drill a hole through the ice or other medium.

An improved cutting auger bit and auger are provided. The auger bit comprises a geometry and structure formed with a high degree of precision and tolerances that reduce oscillations and vibrations resulting from rotation of the bit. The bit further comprises a structure with a center of mass corresponding to an axial centerline of a drive shaft to which the auger is to be provided.

The present invention discloses an impact ice driller, which comprises a frame; a motor; a rotatable drill stem; a stationary element and a rotatable element disposed along a same axis and facing each other; wherein the stationary element is connected to the frame; the rotatable element is connected to the drill stem and synchronously moves with the drill stem as driven by the motor; the stationary element and the rotatable element each has an irregular surface capable of engaging with each other on each opposite surface, when the rotatable element rotates, the irregular surface of the stationary element and the irregular surface of the rotatable element can repeat engagement and separation, so that the rotatable element can repeat the movement along an axis relative to the stationary element. In this way, the drill stem can produce up-and-down impacts on ice cover ceaselessly in the ice drilling process with good ice drilling effect.

A direct high voltage flow-through water heater system transmits high voltage power to a remote ice penetrating robot, converts the power to heat in a very small space, and then uses the heat to melt the ice, providing a path ahead of the robot allowing penetration deeper into a remote ice-covered location, such ice of substantial (e.g., kilometers) thickness, such as, for example, glacial ice caps. High voltage, low current, AC power is passed through a moving conducting fluid, inducing resistive heating in the fluid with 100% efficiency. The exiting fluid is stripped of common mode voltage before exiting. Energy transfer from the electrical source to the fluid is instantaneous and occurs at 100% efficiency. In an alternative embodiment, the fluid heater system operates at standard residential/industrial mains voltages and runs from 220 VAC as other applications of the present invention include the traditional water heater industry as well.