Back to results
US 4,382,459 AGranted
Wood splitting maul
OwnerJoseph Bartokinventor
Life of this patent
Estimating the term…
Abstract
A wood splitting maul includes a maul head having two inclined blade faces that meet to form a sharpened blade edge. A plurality of elongated, cylindrical roller bearing elements are rotatably disposed in respective recesses in each of the blade faces and extend outwardly from the blade faces to force the walls of a split being formed in a log to move away from a portion of the blade faces, reducing friction between the walls of the split and the blade faces.
Claims9
A maul for splitting wood, said maul comprising in combination:
- (a) a maul head having first and second opposed inclined blade faces that each meet at one end to form a sharpened blade edge, said first blade face having therein a first bearing receiving recess and a second blade face therein, a second bearing receiving recess;
- (b) first bearing means rotatably disposed in said first bearing receiving recess for engaging a first surface of a split in a log through which said maul head moves and forcing the first surface of the split outward from said first blade face to reduce friction between said first blade face and the first surface of the split;
- and
- (c) second bearing means rotatably disposed in said second bearing receiving recess for engaging a second surface of the split and forcing the second surface of the split outward from said second blade face to reduce friction between said second blade face and the second surface of the split.
1 more element
Dependencies are inferred from the claim text.