Double-sided wear insert for a chipper
AssigneeKey Knife, Inc.
InventorBradley R. Stager
Life of this patent
Estimating the term…
Abstract
A double-sided wear insert, for a knife assembly that includes a knife, a clamp, and a holder. In one embodiment, the wear insert can be turned end-for-end, and in another embodiment the wear insert can be flipped up-side down, to double the service life of the part.
Claims40
A wear insert for a knife assembly that includes a knife, a clamp, and a holder, the wear insert including two planar wear surfaces at opposite sides thereof, the wear insert defining at least one of (a) a plane about which said wear surfaces have reflective symmetry or (b) an elongate axis of the wear insert about which said wear surfaces have 180 degree rotational symmetry, said wear surfaces defining equal impact angles that differ substantially from 90 degrees, the wear insert having an upper side for contacting the knife and an opposite, lower side that is received by the holder, said lower side including a holder-indexing feature that includes at least one of (a) a projection and (b) a recess for indexing the wear insert to the holder.
(canceled)
13-17. (canceled)
A wear insert for a knife assembly that includes a knife, a clamp, and a holder, the wear insert including two planar wear surfaces at opposite sides thereof, the wear insert defining at least one of (a) a plane about which said wear surfaces have reflective symmetry and (b) an elongate axis of the wear insert about which said wear surfaces have 180 degree rotational symmetry, wherein at least said wear surfaces are is harder or more wear resistant than at least some portions of the holder, the wear insert having an upper side for contacting the knife and an opposite, lower side that is received by the holder, said lower side including a holder-indexing feature that includes at least one of (a) a projection and (b) a recess for indexing the wear insert to the holder.
(canceled)
A wear insert for a knife assembly that includes a knife, a clamp, and a holder, the wear insert including two planar wear surfaces at opposite sides thereof, said wear insert having an upper side for contacting the knife and an opposite, lower side that is received by the holder, said lower side including an indexing feature that includes at least one of (a) a projection and (b) a recess for indexing the wear insert to the holder.
A wear insert for a knife assembly that includes a knife, a clamp, and a holder, the wear insert having an upper side for contacting the knife and an opposite, lower side that is received by the holder, said upper side including at least one knife-indexing feature defining in cross-section a contour that is a smoothly varying arc, for indexing the knife.
Dependencies are inferred from the claim text.