US 12,290,948 B2
Haircutter and haircutting blade
Frank Brormann, Oelde (DE)
Assigned to The Calligraphy Cut Company GmbH, Oelde (DE)
Filed by The Calligraphy Cut Company GmbH, Oelde (DE)
Filed on Nov. 10, 2022, as Appl. No. 17/985,079.
Application 14/661,308 is a division of application No. 13/522,389, abandoned, previously published as PCT/EP2011/000367, filed on Jan. 27, 2011.
Application 17/985,079 is a continuation of application No. 17/105,428, filed on Nov. 25, 2020, granted, now 11,498,232.
Application 17/105,428 is a continuation of application No. 15/939,291, filed on Mar. 29, 2018, granted, now 10,850,411, issued on Dec. 1, 2020.
Application 15/939,291 is a continuation in part of application No. 14/661,308, filed on Mar. 18, 2015, granted, now 10,464,227, issued on Nov. 5, 2019.
Claims priority of application No. 10 2010 006 030.5 (DE), filed on Jan. 27, 2010; and application No. 10 2017 106 929.1 (DE), filed on Mar. 30, 2017.
Prior Publication US 2023/0145421 A1, May 11, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. B26B 21/28 (2006.01); B26B 21/10 (2006.01); B26B 21/12 (2006.01); B26B 21/16 (2006.01); B26B 21/40 (2006.01)
CPC B26B 21/28 (2013.01) [B26B 21/10 (2013.01); B26B 21/12 (2013.01); B26B 21/16 (2013.01); B26B 21/4075 (2013.01)] 34 Claims
OG exemplary drawing
 
1. Haircutter for trimming and styling hair, comprising:
a grip and a blade head with a haircutting blade defining a plane and having a first cutting edge in a fixed position in the blade head, the blade head being connected with the grip,
the blade head comprising two blade head members adapted to interlock with each other and contain the haircutting blade between themselves, the blade head members each comprising a side face opposed to the side face of the other blade head member,
the blade head members when interlocked defining a first longitudinal face at a juncture of edges of the blade head members, wherein the first longitudinal face intersects the plane of the haircutting blade adjacent the first cutting edge of the haircutting blade,
the first longitudinal face of the blade head defining a first alignment line, the first longitudinal face having only one working section disposed thereat which is configured as a recess from the first alignment line of the longitudinal face and wherein the blade head members accommodate the haircutting blade so that the first cutting edge of the haircutting blade is at least partially exposed in the working section disposed in the first longitudinal face and does not protrude beyond the first alignment line,
each of the side faces of the blade head members comprises a guiding device integrally formed in the side face of the blade head member, the guiding devices each having a first placing surface for the hair to be trimmed that comprises at least one first placing section and following behind and adjacent to the first placing section a second placing section transverse to a longitudinal axis of the blade head, and wherein the first placing section is disposed closer to the exposed cutting edge of the haircutting blade in the working section disposed in the first longitudinal face than is the second placing section, the first placing section being disposed adjacent to and surrounding at least a portion of the working section disposed in the first longitudinal face, the first and the second placing section each having an acute angle with respect to the plane of the haircutting blade, the first placing section has a larger acute angle with respect to the plane of the haircutting blade than does the second placing section and the first placing surface is at least partially disposed at an angle to the plane of the haircutting blade when the haircutting blade is oriented in the blade head so that the hair to be trimmed lies at a defined angle to the cutting edge as the first placing surface is placed against the hair.