US 12,138,816 B2
Adjustable blade assembly having magnetic tensioning
Edwin Alen Werner, Union Grove, WI (US); Richard J. Tringali, Racine, WI (US); Ervin Titzkowski, Mount Pleasant, WI (US); Joseph Novak, Milwaukee, WI (US); and Jeffrey D. Gross, Kenosha, WI (US)
Assigned to Andis Company, Sturtevant, WI (US)
Filed by Andis Company, Sturtevant, WI (US)
Filed on Sep. 22, 2022, as Appl. No. 17/950,563.
Application 17/950,563 is a continuation of application No. 16/541,775, filed on Aug. 15, 2019, granted, now 11,504,864.
Claims priority of provisional application 62/830,829, filed on Apr. 8, 2019.
Claims priority of provisional application 62/719,281, filed on Aug. 17, 2018.
Prior Publication US 2023/0023892 A1, Jan. 26, 2023
Int. Cl. B26B 19/06 (2006.01); B26B 19/28 (2006.01); B26B 19/38 (2006.01)
CPC B26B 19/06 (2013.01) [B26B 19/28 (2013.01); B26B 19/38 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A magnetic blade assembly, comprising:
a first blade having teeth extending along a first blade edge;
a second blade having cutting teeth extending along a second blade edge parallel to the first blade edge, and supported relative to the first blade such that the cutting teeth are moveable relative to the first blade to cut hair; and
a blade guide assembly comprising:
a guide member that maintains a position of the first blade edge relative to the second blade edge; and
a magnetic assembly comprising at least one permanent magnet fastened to the second blade and positioned on a surface of the second blade, the surface extending from the second blade edge and facing away from the first blade;
wherein the magnetic assembly generates a tensioning force between the first blade and the second blade.