US 11,833,651 B2
Hammer with hardened textured striking face
Alexander J. Paulsen, Milwaukee, WI (US); and Christopher T. Larson, Waukesha, WI (US)
Assigned to Milwaukee Electric Tool Corporation, Brookfield, WI (US)
Filed by Milwaukee Electric Tool Corporation, Brookfield, WI (US)
Filed on Feb. 7, 2020, as Appl. No. 16/784,865.
Application 16/784,865 is a continuation of application No. PCT/US2020/017047, filed on Feb. 6, 2020.
Claims priority of provisional application 62/802,434, filed on Feb. 7, 2019.
Prior Publication US 2020/0254599 A1, Aug. 13, 2020
Int. Cl. B25D 1/04 (2006.01); B25D 1/02 (2006.01)
CPC B25D 1/04 (2013.01) [B25D 1/02 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A hammer comprising:
a handle;
a shaft rigidly coupled to the handle;
a striking structure comprising a body and a plurality of projections, the plurality of projections forming a pattern of pyramids that extend from the body and define a striking surface, wherein each projection of the plurality of projections comprises a base made from a first material and a cladding affixed to the base and made from a second material having a second hardness, wherein the second hardness is greater than the first hardness;
wherein each projection of the plurality of projections defines a first maximum height measured from a valley adjacent the projection to a tip of the projection, wherein the cladding affixed to each projection of the plurality of projections defines a second maximum height parallel to the first maximum height, and wherein the second maximum height of the cladding is at least 10% of the first maximum height of the projection; and
wherein adjacent projections intersect at a point to define each valley.