US 11,999,071 B2
Electric handheld hair trimmer including transverse edge portions
Timin Ahmad Musallam, Middleton, WI (US); Long Quan, Guang Zhou (CN); Tung Yan Lau, Hong Kong (CN); and Ken Wong, Hong Kong (CN)
Assigned to SPECTRUM BRANDS, INC., Middleton, WI (US)
Filed by Spectrum Brands, Inc., Middleton, WI (US)
Filed on Jan. 12, 2023, as Appl. No. 18/096,506.
Application 18/096,506 is a continuation of application No. 17/461,643, filed on Aug. 30, 2021, granted, now 11,577,413.
Application 17/461,643 is a continuation of application No. 16/489,253, granted, now 11,104,016, issued on Aug. 31, 2021, previously published as PCT/US2018/019891, filed on Feb. 27, 2018.
Claims priority of provisional application 62/463,918, filed on Feb. 27, 2017.
Prior Publication US 2023/0166413 A1, Jun. 1, 2023
Int. Cl. B26B 19/04 (2006.01); B26B 19/06 (2006.01); B26B 19/38 (2006.01)
CPC B26B 19/046 (2013.01) [B26B 19/06 (2013.01); B26B 19/3846 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A head for an electric handheld hair trimmer, the head comprising:
a stationary blade including:
a first transverse edge portion including blade teeth defining a first edge of the stationary blade;
a second transverse edge portion including blade teeth defining a second edge of the stationary blade; and
a blade middle portion connecting the first transverse edge portion and the second transverse edge portion;
a movable blade including a first edge and an opposing second edge, the first and second edges including blade teeth in shearing contact with the respective blade teeth of the stationary blade to define a cutting plane; and
a guard connected to the stationary blade, the guard is disposed outward of and extending in proximity to the respective blade teeth of the stationary blade and the movable blade, wherein the guard defines an interior space configured to receive the stationary blade and the movable blade, the guard including comb portions extending along the first and second edges of the stationary blade and a guard middle portion extending between the comb portions, wherein the comb portions and the guard middle portion define the interior space, wherein the comb portions and the guard middle portion are integrally formed as a single piece, the comb portions extending at least to the cutting plane, wherein the comb portions and the first and second edges of the stationary blade define gaps at the cutting plane in a range of 0.1 mm to 0.5 mm.