US 12,447,638 B2
Shaving and grooming apparatus
Daniel Lawrence Roth, Newton, MA (US)
Filed by Daniel Lawrence Roth, Newton, MA (US)
Filed on Nov. 25, 2021, as Appl. No. 17/535,642.
Application 17/535,642 is a continuation of application No. 16/517,565, filed on Jul. 20, 2019, granted, now 11,203,126.
Application 16/517,565 is a continuation of application No. 14/586,158, filed on Dec. 30, 2014, granted, now 10,391,648, issued on Aug. 27, 2019.
Claims priority of provisional application 61/922,830, filed on Jan. 1, 2014.
Prior Publication US 2022/0080608 A1, Mar. 17, 2022
Int. Cl. B26B 19/38 (2006.01); B26B 19/04 (2006.01); B26B 19/06 (2006.01); B26B 21/40 (2006.01)
CPC B26B 19/384 (2013.01) [B26B 19/042 (2013.01); B26B 19/06 (2013.01); B26B 19/3846 (2013.01); B26B 21/4081 (2013.01); B26B 21/4087 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A trimmer blade assembly for a shaving and grooming apparatus comprising:
a) a lower curved cutting surface stationary blade comprising a plurality of teeth having cutting edges, each of the plurality teeth being shaped so that the cutting edges ride above a skin surface so that skin fills in an area between the teeth allowing the skin to get closer to cutting surfaces; and
b) a curved movable upper blade disposed on top of the lower curved cutting surface stationary blade having a plurality of teeth that when the lower curved cutting surface stationary blade and the curved movable upper blade are pressed together they are frictionally engaged with a radius of a bend in the lower curved cutting surface stationary blade being smaller than a radius of a bend in the curved movable upper blade and, a cutting pressure is generated between the blades which causes the lower curved cutting surface stationary blade to unfurl somewhat aiding and improving effectiveness of a cut, wherein the lower curved cutting surface stationary blade is thinner than the curved movable upper blade.