A blade for a skate for skating on ice. The blade includes ice-contacting material with an ice-contacting surface for contacting the ice. The ice-contacting surface has a machined longitudinal profile with a radius of curvature that varies smoothly over a majority of the length of the blade. Such a radius of curvature may, in some cases, be an elliptical arc.

The end mill grinding device of the present invention includes a tool spindle assembly and a motor tower which enables multi-axis positioning of a sharpening wheel in relation to an end mill cutting tool being sharpened, for sharpening the end mill tool. The present invention combines linear sharpening and radial tool end grinding capability in the same device.

A skate blade sharpening system retains a skate blade in a sharpening position whose centerline has a first location relative to a first visual reference feature. A motor-driven rotating shaft has a wheel-mounting location for mounting a grinding wheel for sharpening operation. The shaft accepts an alignment wheel at the wheel-mounting location during an alignment, the alignment wheel having a second visual reference feature having a second location relative to a centerline of the grinding wheel when occupying the wheel-mounting location. An adjustment mechanism moves the shaft transversely during alignment to vary relative position between the wheel-mounting location and the sharpening position including an aligned position in which the centerline of the grinding wheel is aligned with the centerline of the sharpening position, the aligned position being indicated by alignment of the first visual reference feature with the second visual reference feature during alignment.

A skate blade retention mechanism for retaining a skate blade in a sharpening position to be sharpened includes a pair of elongated jaws configured for symmetrical jaw opening and closing movements about a centerline of the skate blade in the sharpening position. A biasing mechanism is configured and operative to apply a bias force to symmetrically bias the jaws toward a closed position with sufficiently high force to retain the skate blade in the sharpening position when the skate blade is located between the jaws as so biased. An actuator is configured to actuate the jaws against the bias force to an open position under user control to permit insertion and removal of the skate blade.

An edge sharpening device comprises an electric motor housed by a housing. A motor shaft extends from the electric motor and is rotatable by the electric motor about a rotation axis. The motor shaft is configured to secure an abrasive wheel. The housing comprises a housing base configured to secure a base adapter. The base adapter is configured to rest on a surface of a material comprising an edge to enable the abrasive wheel to contact the edge. The housing also comprises a battery mount configured to secure a battery for powering the electric motor. A longitudinal axis of the housing base, a longitudinal axis of the battery mount, and the rotation axis of the electric motor are arranged on a median plane of the edge sharpening device.

An edge sharpening device comprises an electric motor housed by a housing. A motor shaft extends from the electric motor and is rotatable by the electric motor about a rotation axis. The motor shaft is configured to secure an abrasive wheel. The housing comprises a housing base configured to alternately secure a first base adapter and a second base adapter. The first base adapter comprises an angle plate that is configured to interface with a surface of a material comprising an edge to configure the abrasive wheel to contact a side bevel of the edge in accordance with a side bevel sharpening angle. The second base adapter comprises a base bevel adapter that is configured to interface with the surface of the material comprising the edge to configure the abrasive wheel to contact a base bevel of the edge in accordance with a base bevel sharpening angle.

A snowboard edge tuner, including a locking mechanism and a case having a base and a connecting base mutually connected; a first through hole passing through the connecting base and a second through hole passing through both the base and the connecting base are in communication with each other; the locking mechanism includes a sliding block and a first rotating component; the sliding block includes a first pressure plate, a second pressure plate and a first inclined surface; the base includes a second inclined surface corresponding to the first inclined surface; the first rotating component is rotatably fitted on the case, rotates and drives the sliding block to move along the second inclined surface, such that the first pressure plate presses against a sharpening block in the first through hole or the second pressure plate presses against the sharpening block in the second through hole.

The present disclosure provides for a skate sharpening system comprising an operative unit and a base, the operative unit comprising a central body, the central body comprising a skate receiving slot, a skate clamp being positioned adjacent to the skate receiving slot such that a skate can be secured within the skate receiving slot for a sharpening operation, the operative unit further comprising a grinding unit, the grinding unit being configured to translate along a length of the slot such that the grinding unit can conduct the sharpening operation on the skate that is secured within the skate receiving slot, the operative unit being positioned over at least a portion of the base, the base comprising a swarf-receiving cavity, the operative unit and the base being pivotably connected.

An ice skate blade measurement device comprising a frame configured to couple to an ice skate blade; a measurement system configured to obtain measurement data associated with the ice skate blade; and a control system with computer-executable instructions configured to, when executed: determine, one or more measurements associated with geometry of the ice skate blade, and generate, an output based at least in part on the one or more measurements.

A tool for steeling a knife includes a frame and first and second steeling components. Each of the components is shiftably mounted relative to the frame for movement between a first position and a second position. The steeling components cooperatively define a knife interface configured to engage and thereby steel the knife. The steeling components are resiliently biased into the first position, with the knife interface moving as the steeling components shift between the first and second positions.