Patent ID: 7784506

Claim:
A planer comprising: a housing having a front end and an opposite rear end, opposite said front end, a handle affixed atop said housing, a lower-most surface extending from said front end to said rear end, said lower-most surface having an oppositely disposed, laterally spaced apart pair of side edges, wherein said housing includes a cutter-blade cavity formed therein, said cutter-blade cavity having an opening in said lower-most surface, and wherein said lower-most surface is formed as a rocker surface which is convex in a convex curvature extending substantially continuously from said front end to said rear end, a substantially cylindrical rotary cutter rotatably mounted transversely in said cavity wherein said rotary cutter is rotatable about an axis rotation extending longitudinally and centrodially along the length of said rotary cutter, said axis of rotation of said rotary cutter and said opening extending laterally across said cavity substantially from one side edge of said pair of side edges to the other side edges of said pair of side edges, and wherein said opening is positioned substantially medially along said rocker surface substantially medially between said front and rear ends, and wherein said rocker surface extends away from said opening to said front and rear ends sufficiently so that said housing is rockable on said rocker surface to elevate said opening above said front or rear ends, a motor mounted in said housing and operatively connected to said rotary cutter for selectively driving rotation of said rotary cutter about said axis of rotation, said rotary cutter having cutting blades mounted thereon which extend along said length of said rotary cutter and which are formed to cut a substantially cylindrical profile, said blades arranged to extend substantially radially from said rotary cutter, so as to radially extend relative to said axis of rotation, said axis of rotation and said rotary cutter positioned in said cavity so as to dispose a lower-most edge of said rotary cutter in said opening and so as to extend radially outer-most edges of said blades through said opening and beneath said lower-most surface of said housing when said blades are rotated to a lower-most position, whereby said blades cut said profile in a surface-to-be-cut on which said lower-most surface of said housing is placed and when opening is aligned downwards onto the surface-to-be-cut.