US 11,864,693 B1
Blender blade formed of titanium or titanium alloy
Thomas G. Klocker, Lakewood, OH (US)
Assigned to All Metal Sales, Inc., Westlake, OH (US)
Filed by All Metal Sales, Inc., Westlake, OH (US)
Filed on Feb. 22, 2021, as Appl. No. 17/181,094.
Application 17/181,094 is a continuation of application No. 14/685,567, filed on Apr. 13, 2015, granted, now 10,925,438, issued on Feb. 23, 2021.
Claims priority of provisional application 61/978,990, filed on Apr. 14, 2014.
Int. Cl. A47J 43/00 (2006.01); A47J 43/07 (2006.01); C23C 8/02 (2006.01); C23C 8/24 (2006.01); B23P 15/28 (2006.01)
CPC A47J 43/0722 (2013.01) [B23P 15/28 (2013.01); C23C 8/02 (2013.01); C23C 8/24 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A blender, comprising:
a rotatable shaft that includes a threaded end;
a blender blade that is configured to slice foodstuff placed into the blender as the rotatable shaft rotates about an axis, wherein the blender blade comprises:
a central body portion that is coupled to the threaded end of the rotatable shaft via an aperture of the central body portion and a fastener, wherein the aperture is configured to fit the threaded end of the rotatable shaft, wherein the central body portion is formed entirely of titanium or a titanium alloy and the central body portion includes a first upper surface and a first lower surface; and
at least one blade wing that extends from the central body portion in a direction,
wherein the central body portion and the at least one blade wing rotate about the axis when the rotatable shaft rotates about the axis due to the central body portion being coupled to the threaded end of the rotatable shaft via the aperture of the central body portion and the fastener,
wherein the at least one blade wing is formed entirely of titanium or the titanium alloy and the at least one blade wing has a second upper surface, a second lower surface, and a first thickness therebetween,
wherein the at least one blade wing is nitrided subsequent to being formed, thereby causing the second upper surface of the at least one blade wing to be covered with a layer of titanium nitride, thereby forming a nitrided surface of the at least one blade wing such that the at least one blade wing has a second thickness between the nitrided surface and the second lower surface that is greater than the first thickness and such that the nitrided surface is coplanar with the first upper surface, thereby forming a common upper surface of the central body portion and the at least one blade wing.