US4557050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair cutter
Assignee: Centre National de la Recherche Scientifique
•
Filing: 1982-12-03
•
Granted: 1985-12-10
•
Expires: 2002-12-03
Abstract
Abstract A hair cutter for thinning hair which includes a stationary blade, a movable blade, a comb member adjacent to either the movable blade or stationary blade, and a hair pressing member disposed on the side of either the stationary blade or movable blade where the comb member is not located. This arrangement permits hair to be thinned easily and accurately even when used by individuals lacking a barber's hair cutting skill.
Inventors
- 👤 Hideaki Haraguchi
- 👤 Shunichi Hata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:20
CPC Classifications
B; B26; B26B; B26B19/00; B26B19/20; B26B19/02; B26B19/04; B26B19/06
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
202 words
A hair cutter comprising: a stationary blade having a leading edge with comb-like cutting teeth with recesses for hair thinning; a movable blade in parallel contacting relationship to said stationary blade and having comb-like cutting teeth at its leading edge to define a cutting plane; an elongated comb member disposed substantially parallel to and on one side of said cutting plane; an elongated hair pressing member disposed substantially parallel to and on the other side of said cutting plane so that the leading edges of said stationary blade and said movable blade are located between said hair pressing member and said comb member; the comb-like cutting teeth of said stationary blade having cutting recesses in small and large depths at its leading edge and means (a) to move said movable blade backward and foward along said cutting plane in relation to said stationary blade to place the movable blade in operative cutting position in relation to either all of the cutting recesses of said stationary blade or only those recesses having large depth; and to (b) move at least one of said comb member and said hair pressing member toward and away from a second plane generally perpendicular to said cutting plane.
Claim 2
Dependent Claim
202 words
A hair cutter comprising: a stationary blade having a leading edge with comb-like cutting teeth with recesses for hair thinning; a movable blade in parallel contacting relationship to said stationary blade and having comb-like cutting teeth at its leading edge to define a cutting plane; an elongated comb member disposed substantially parallel to and on one side of said cutting plane; an elongated hair pressing member disposed substantially parallel to and on the other side of said cutting plane so that the leading edges of said stationary blade and said movable blade are located between said hair pressing member and said comb member; the comb-like cutting teeth of said stationary blade having cutting recesses in small and large depths at its leading edge and means (a) to move said movable blade backward and foward along said cutting plane in relation to said stationary blade to place the movable blade in operative cutting position in relation to either all of the cutting recesses of said stationary blade or only those recesses having large depth; and to (b) move at least one of said comb member and said hair pressing member toward and away from a second plane generally perpendicular to said cutting plane.
Claim 3
Dependent Claim
21 words
A hair cutter as set forth in claim 1, wherein said comb member is positioned ahead of said hair pressing member.
Claim 4
Dependent Claim
24 words
A hair cutter as set forth in claim 1, wherein at least one of said hair pressing member and said comb member is resilient.
Claim 5
Dependent Claim
34 words
A hair cutter as set forth in claim 1, wherein said hair pressing member is a roller rotatable about an axis parallel with the leading edges of said stationary blade and said movable blade.
Claim 6
Dependent Claim
36 words
A hair cutter as set forth in claim 1, wherein said hair pressing member is on the same side as said stationary blade and said comb member is on the same side as said movable blade.
Claim 7
Dependent Claim
40 words
A hair cutter as set forth in claim 1, wherein at least one of said comb member and said hair pressing member is positionally adjustable in the backward and forward direction with respect to said stationary and said movable blades.
Claim 8
Dependent Claim
56 words
A hair cutter as set forth in claim 6, wherein said comb member and said hair pressing member are mounted on a hair pressing block with interconnecting means whereby said comb member and said hair pressing member may be adjusted together in the backward and forward directions relative to the main body of said hair cutter.
Claim 9
Dependent Claim
46 words
A hair cutter as set forth in claim 7, further comprising: an adjustable attachment positioned on top of said stationary blade, said adjustable attachment being operable to slide said hair pressing block in the backward and forward directions without adjusting the position of said movable blade.
Claim 10
Dependent Claim
76 words
A hair cutter as set forth in claim 7, further comprising: a lever having a first portion engageable with said hair pressing block; and a connector coupling a second portion of said lever and said movable blade, whereby said movable blade is movable in the backward and forward directions relative to the main body of said hair cutter and is adapted to move in association with but in the opposite direction of said hair pressing block.
Claim 11
Dependent Claim
36 words
A hair cutter as set forth in claim 9, wherein said lever is operable between two positions in which said movable blade may be positioned in either a hair cutting position or a hair thinning position.
Claim 12
Dependent Claim
65 words
A hair cutter as set forth in claim 10, wherein said hair pressing block is engaged with said lever whereby when said block is moved backward, said movable blade moves forward relative to said main body to said hair cutting position and when said hair pressing block is moved forward, said movable block moves backward relative to said main body to said hair thinning position.
Claim 13
Dependent Claim
31 words
A hair cutter as set forth in claim 7, including means to lock said hair pressing block in a plurality of positions relative to the main body of said hair cutter.
Claim 14
Dependent Claim
37 words
A hair cutter as set forth in claim 12, further comprising: a locking lever on said hair pressing block for locking the hair pressing block to said main body in any one of said plurality of positions.
Claim 15
Dependent Claim
38 words
A hair cutter as set forth in claim 13, wherein said locking lever is rotatable to engage any one of a plurality of recesses on the main body thereby locking the hair pressing block to said main body.
Claim 16
Dependent Claim
35 words
A hair cutter as set forth in claim 12, further comprising: a holder extending forwardly from said hair pressing block and connecting said comb member and said hair pressing member to said hair pressing block.
Claim 17
Dependent Claim
28 words
A hair cutter as set forth in claim 15, wherein said holder is rotatable about an axis parallel to the leading edges of said stationary and movable blades.
Claim 18
Dependent Claim
32 words
A hair cutter as set forth in claim 16, further comprising: a first spring means extending between the holder and said comb member for urging said comb member in the forward direction.
Claim 19
Dependent Claim
60 words
A hair cutter as set forth in claim 7, further comprising: a second spring means extending between said comb member and said hair pressing member to urge said comb member and said hair pressing member towards each other; and stopper means to limit the extent to which said comb member and said hair pressing member are urged towards each other.
Claim 20
Dependent Claim
39 words
A hair cutter as set forth in claim 18, wherein said comb member and said hair pressing member are pivotally mounted to rotate around a common axis parallel to the front edges of said stationary and said movable blades.
References Cited (Backward Citations)
US2099537A
Cited
US2292364A
Cited
US2470287A
Cited
US2703450A
Cited
US2867902A
Cited
US3531862A
Cited
US3651570A
Cited
DE2511960A1
Cited
GB1552752A
Cited
JPS5458561U
Cited
JPS54143372A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-12-09 | 1989-06-10 | 1989-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-09 | 1993-06-10 | 1993-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-09 | 1997-06-10 | 1997-12-10 | $7700.00 | Window Closed / Lapsed |