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US3382580A - Perforated cutter foil for dry shavers - Google Patents

Perforated cutter foil for dry shavers Download PDF

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Publication number
US3382580A
US3382580A US509966A US50996665A US3382580A US 3382580 A US3382580 A US 3382580A US 509966 A US509966 A US 509966A US 50996665 A US50996665 A US 50996665A US 3382580 A US3382580 A US 3382580A
Authority
US
United States
Prior art keywords
openings
diamond
groups
shaped
foil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US509966A
Other languages
English (en)
Inventor
Rinck Cornelis Ludwig
Koroncai Adam
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carinthia Elektrogerate Firma GmbH
CARINTHIA ELEKTROGERATE GES M
Original Assignee
CARINTHIA ELEKTROGERATE GES M
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CARINTHIA ELEKTROGERATE GES M filed Critical CARINTHIA ELEKTROGERATE GES M
Application granted granted Critical
Publication of US3382580A publication Critical patent/US3382580A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/384—Dry-shaver foils; Manufacture thereof

Definitions

  • ABSTRACT 0F THE DISCLOSURE A perforated cutter foil for dry shavers having a plurality of diamond-shaped hair entry openings with adjacent sides of each making angles with one another of 60 and 120 respectively, and all the openings constituting a network which has groups of openings with the groups having the principal diagonals extending in three diiferent directions which make angles of 120 with each other.
  • the invention relates to the construction of a cutter foil for dry Shavers with a lower knife arranged beneath the foil.
  • openings in the form of longitudinal slits are particularly well suited to erect and grasp longer beard hairs, which lie in the direction of the length of such openings, so that they can be cut off.
  • to distribute such longitudinal slits over the entire area of the foil with different directions of their longitudinal extents to take account of the fact that the natural growth of the beard hairs, even in relatively small areas of the skin, often follows sharply different directions.
  • a cutter foil with a plurality of diamondshaped hair entry openings in that the adjacent sides of the diamond-shaped hair entry openings make angles with one another of 60 and 120 respectively, and that the totality of the openings constitutes a network, which predominantly or exclusively contains groups of diamondshaped openings, in which the directions of the principal diagonals of the openings make angles of 60 between each other.
  • the openings alongside one another except for narrow bars, that is to say to achieve a high opening ratio, but at the same time to ensure that bars extend in directions uniformly angularly inclined to one another at 120, so that the cutter foil is not inadmissibly weakened in any direction.
  • a particularly favourable arrangement is produced if the groups of diamond-shaped openings form six-pointed symmetrical stars. Then between each two adjacent starshaped groups there can lie an additional diamond-shaped opening, or between three adjacent star-shaped groups there can lie a hexagonal opening.
  • FIGURE 1 shows the group of hair entry openings in the form of a six-pointed symmetrical star which is preferably employed within the scope of the invention, while FIGURES 2, 3 and 4 show various possibilities of arranging such star-shaped groups in relation to one another.
  • FIGURE 5 shows an arrangement of hexagonal groups alongside one another according to another way of carrying out the invention.
  • the group of hair entry openings shown in FIGURE l consists of six openings 1 of diamond shape, in which the adjacent sides of the diamond-shaped openings make angles with one another of 60 and 120 respectively.
  • Six openings 1 of this kind are assembled into a symmetrical six-pointed star, While ⁇ between the openings there only remain narrow bars 2 and six of such bars which extend in three directions displaced angularly from one another by l20 meet at junctions 3.
  • FIGURE 4 The arrangement according to FIGURE 4 is similar to that according to FIGURE 3, except that in this case the hexagonal openings are divided by three bars angularly displaced from one another by into diamond-shaped openings of the same size as the openings 1.
  • each hexagon boundary there lie twelve diamond-shaped openings 1, of which each four have the same direction of the principal diagonal, While the result is three directions of principal diagonal, which are angularly displaced from one another by 120.
  • the principal diagonals of the diamondshaped hair entry openings extend in three directions which are angularly displaced from one another by 120, and that the bars between these openings are also angularly displaced from one another by 120.
  • the diamonds with angles of 60 and 120 respectively also permit numerous other groupings, and assemblies of groups into networks.
  • Perforated cutter foil for dry Shavers comprising a plurality of diamond-shaped hair entry openings, the adiacent sides of each of said diamond-shaped hair entry openings making angles with one another of 60 degrees and 120 degrees respectively, and the .totality of the openings constituting a network which contains groups of at least three diamond-shaped openings abutting at a common apex, in which groups the principal and longer diagonals of the openings extend in three different directions which make angles of 60 degrees with each other.
  • Perforated cutter foil according to claim 1 in which the network contains groups of six diamond-shaped openings abutting at a common apex to form a six-pointed symmetrical star.
  • Perforated cutter foil according to claim 1 in which the network contains groups of three diamond-shaped openings abutting at a common apex to form an equilateral hexagon.
  • Perforated cutter foil according to claim 1 in which the network contains groups of six diamond-shaped openings abutting at a common apex to form a six-pointed symmetrical star, each of said groups of openings having two apices in common with a similar adjacent group of openings, while between two adjacent groups there is an additional diamond-shaped opening.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Dry Shavers And Clippers (AREA)
  • Nonwoven Fabrics (AREA)
  • Cell Electrode Carriers And Collectors (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
US509966A 1964-12-07 1965-11-26 Perforated cutter foil for dry shavers Expired - Lifetime US3382580A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT1036364A AT249544B (de) 1964-12-07 1964-12-07 Siebscherfolie für Trockenrasierapparate

Publications (1)

Publication Number Publication Date
US3382580A true US3382580A (en) 1968-05-14

Family

ID=3621822

Family Applications (1)

Application Number Title Priority Date Filing Date
US509966A Expired - Lifetime US3382580A (en) 1964-12-07 1965-11-26 Perforated cutter foil for dry shavers

Country Status (10)

Country Link
US (1) US3382580A (da)
AT (1) AT249544B (da)
BE (1) BE673024A (da)
CH (1) CH429501A (da)
DK (1) DK122747B (da)
ES (1) ES319302A1 (da)
FR (1) FR1455697A (da)
GB (1) GB1056506A (da)
NL (1) NL150708B (da)
NO (1) NO116494B (da)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3696508A (en) * 1969-08-26 1972-10-10 Braun Ag Shearing system for dry shavers
US20040168321A1 (en) * 2001-08-09 2004-09-02 Raoul Bader Shaving foil patterning
US20070022608A1 (en) * 2005-07-29 2007-02-01 The Procter & Gamble Company Shaving foil
US20070022606A1 (en) * 2005-07-29 2007-02-01 Mcguire Kenneth S Shaving foil
US20120066909A1 (en) * 2006-11-08 2012-03-22 Martin Kluge Shaving Foil for an Electric Shaving Apparatus

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO64863A (da) *
DE663487C (de) * 1937-06-03 1938-08-06 Helmut Stoller Schergeraet
US2183442A (en) * 1938-06-21 1939-12-12 Herbert H Blackwell Electric vacuum shaver
US2198833A (en) * 1938-04-26 1940-04-30 Gillette Safety Razor Co Shaving implement
US2223156A (en) * 1937-12-07 1940-11-26 Remington Rand Inc Electric dry shaver
US2289323A (en) * 1939-02-13 1942-07-07 Lawrence E Dettle Electric shaver
US2292858A (en) * 1938-07-28 1942-08-11 Gen Electric Shaving device and method of making
US2360785A (en) * 1941-07-21 1944-10-17 Ulysses G Charles Safety razor for dry shaving
US2573758A (en) * 1948-02-13 1951-11-06 Bailey Theodore Dry shaver
US2824367A (en) * 1955-06-22 1958-02-25 Arthur C Mcwilliams Dry shaver having combination suction and adjustable cutting means
US3093899A (en) * 1959-08-19 1963-06-18 Braun Ag Improvements to the cutting heads of dry shaving apparatus

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO64863A (da) *
DE663487C (de) * 1937-06-03 1938-08-06 Helmut Stoller Schergeraet
US2223156A (en) * 1937-12-07 1940-11-26 Remington Rand Inc Electric dry shaver
US2198833A (en) * 1938-04-26 1940-04-30 Gillette Safety Razor Co Shaving implement
US2183442A (en) * 1938-06-21 1939-12-12 Herbert H Blackwell Electric vacuum shaver
US2292858A (en) * 1938-07-28 1942-08-11 Gen Electric Shaving device and method of making
US2289323A (en) * 1939-02-13 1942-07-07 Lawrence E Dettle Electric shaver
US2360785A (en) * 1941-07-21 1944-10-17 Ulysses G Charles Safety razor for dry shaving
US2573758A (en) * 1948-02-13 1951-11-06 Bailey Theodore Dry shaver
US2824367A (en) * 1955-06-22 1958-02-25 Arthur C Mcwilliams Dry shaver having combination suction and adjustable cutting means
US3093899A (en) * 1959-08-19 1963-06-18 Braun Ag Improvements to the cutting heads of dry shaving apparatus

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3696508A (en) * 1969-08-26 1972-10-10 Braun Ag Shearing system for dry shavers
US20040168321A1 (en) * 2001-08-09 2004-09-02 Raoul Bader Shaving foil patterning
US7065879B2 (en) 2001-08-09 2006-06-27 Braun Gmbh Shaving foil patterning
US20070022608A1 (en) * 2005-07-29 2007-02-01 The Procter & Gamble Company Shaving foil
US20070022606A1 (en) * 2005-07-29 2007-02-01 Mcguire Kenneth S Shaving foil
US7845079B2 (en) * 2005-07-29 2010-12-07 The Gillette Company Shaving foil
US20120066909A1 (en) * 2006-11-08 2012-03-22 Martin Kluge Shaving Foil for an Electric Shaving Apparatus
US8701296B2 (en) * 2006-11-08 2014-04-22 Braun Gmbh Shaving foil for an electric shaving apparatus

Also Published As

Publication number Publication date
ES319302A1 (es) 1966-05-16
BE673024A (da) 1966-03-16
NO116494B (da) 1969-03-31
DK122747B (da) 1972-04-10
AT249544B (de) 1966-09-26
NL6515325A (da) 1966-06-08
NL150708B (nl) 1976-09-15
CH429501A (de) 1967-01-31
DE1553668B2 (de) 1975-10-16
GB1056506A (en) 1967-01-25
FR1455697A (fr) 1966-04-01
DE1553668A1 (de) 1970-07-16

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