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US2750664A - Indicator for razors - Google Patents

Indicator for razors Download PDF

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Publication number
US2750664A
US2750664A US392172A US39217253A US2750664A US 2750664 A US2750664 A US 2750664A US 392172 A US392172 A US 392172A US 39217253 A US39217253 A US 39217253A US 2750664 A US2750664 A US 2750664A
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US
United States
Prior art keywords
shank
razor
disk
indicator
razors
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
US392172A
Inventor
Mario P Merlo
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Individual
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Priority to US392172A priority Critical patent/US2750664A/en
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Publication of US2750664A publication Critical patent/US2750664A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26BHAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/40Details or accessories
    • B26B21/4081Shaving methods; Usage or wear indication; Testing methods
    • B26B21/4087Usage or wear indication
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26BHAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/40Details or accessories

Definitions

  • the present invention relates broadly to indicators and more specifically to an indicator which may be incorporated in a razor of the safety type, for indicating to the user of the razor the number of times that a blade has been used.
  • the present invention has no relationship to tensioning indicating devices for razor blades used in the so-called safety razors.
  • the inventor has found that the average razor blade as now constructed and sharpened is capable of being used for more than one shave, and the indicator is adapted to show the number of times that the blade has been so used.
  • An object of the invention is to provide an indicator for razors of the safety type which is attractive in appearance, efficient in operation, may be readily incorporated on existing types of safety razors, of pleasing appearance, and which does not necessitate major changes in razor construction.
  • Figure l is a perspective view of a razor incorporating the invention.
  • Figure 2 is a top-plan view of a razor showing the invention.
  • Figure 3 is a sectional view on the line 3-3 of Figure 2.
  • a razor of this type includes a head 1, a handle 2 secured to the head, the head being so constituted and arranged as to receive a blade 3.
  • a shank 4 between the head and the handle, and I utilize this shank to incorporate my invention.
  • I mount a disk 5, for rotation.
  • This disk bears indicia, such as the numerals 6, and the said disk may be secured to the shank in any convenient manner, such as by passing a threaded screw 7 through the center of the disk and the shank 4 and through lock and frictional washers 8, of which there may be more than one, the entirety being secured by a nut 9 carried by the screw 7.
  • Other means may be utilized for securing the disk 5 to the shank, as is self-evident.
  • the shankon its face carries an arrow 10 or other indication which points towards the disk and specifically to a numeral on said disk.
  • various means may be utilized for frictionally holding the disk 5 in a defined position, such as by notching the edge of the disk in alignment with the numerals together with a spring detent carried by the shank 4, the detent having snap engagement with the notches.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)

Description

J1me 1956 M. P. MERLO I 2,750,664
INDICATOR FOR RAZORS F iled Nov. 16, 1955 INVENTOR,
Mg zia R Marla;
ATTOQNE).
United States Patent INDICATOR FOR RAZORS Mario P. Merlo, Tarzana, Calif.
Application November 16, 1953, Serial No. 392,172
1 Claim. (Cl. 30-34) The present invention relates broadly to indicators and more specifically to an indicator which may be incorporated in a razor of the safety type, for indicating to the user of the razor the number of times that a blade has been used. The present invention has no relationship to tensioning indicating devices for razor blades used in the so-called safety razors.
The inventor has found that the average razor blade as now constructed and sharpened is capable of being used for more than one shave, and the indicator is adapted to show the number of times that the blade has been so used.
An object of the invention is to provide an indicator for razors of the safety type which is attractive in appearance, efficient in operation, may be readily incorporated on existing types of safety razors, of pleasing appearance, and which does not necessitate major changes in razor construction.
In the drawing:
Figure l is a perspective view of a razor incorporating the invention;
Figure 2 is a top-plan view of a razor showing the invention; and
Figure 3 is a sectional view on the line 3-3 of Figure 2.
Referring to to the drawing, I have shown in the figures a conventional razor of the type known in the industry as the Schick. A razor of this type includes a head 1, a handle 2 secured to the head, the head being so constituted and arranged as to receive a blade 3. In this type of razor there is a shank 4 between the head and the handle, and I utilize this shank to incorporate my invention. Thus, on the upper flat side of said shank ice I mount a disk 5, for rotation. This disk bears indicia, such as the numerals 6, and the said disk may be secured to the shank in any convenient manner, such as by passing a threaded screw 7 through the center of the disk and the shank 4 and through lock and frictional washers 8, of which there may be more than one, the entirety being secured by a nut 9 carried by the screw 7. Other means may be utilized for securing the disk 5 to the shank, as is self-evident. The shankon its face carries an arrow 10 or other indication which points towards the disk and specifically to a numeral on said disk.
As stated, various means may be utilized for frictionally holding the disk 5 in a defined position, such as by notching the edge of the disk in alignment with the numerals together with a spring detent carried by the shank 4, the detent having snap engagement with the notches.
The operation, uses and advantages of the invention are as follows: When a new blade 3 is inserted in the head 1 the disk 5 is rotated so that the arrow points to the numeral 1 and upon completion of the shave the disk is rotated by the finger until the numeral 2 is beneath the arrow. Thus, the user of the razor will at all times know how many times the blade has been used for shaving. The number of numerals may be varied, the four numerals being used for illustrative purposes only.
I claim:
The combination with a razor having a head, a handle and a shank having a flat side interconnecting the head and the handle, of: pointer means on said shank, a disc on the flat side of said shank, said disc having a diameter substantially equal to the maximum transverse width of said shank, friction means on the opposite side of said shank, and means interconnecting the said disc, shank and friction means, said disc bearing indicia adapted to be successively positioned in alignment with the said pointer means when the disc is rotated to indicate the number of times a blade has been used.
References Cited in the file of this patent UNITED STATES PATENTS 1,966,193 Weber July 10, 1934 2,316,600 Kuhnl et a]. Apr. 13, 1943 OTHER REFERENCES 9256/1885 Great Britain Aug. 1, 1885
US392172A 1953-11-16 1953-11-16 Indicator for razors Expired - Lifetime US2750664A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US392172A US2750664A (en) 1953-11-16 1953-11-16 Indicator for razors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US392172A US2750664A (en) 1953-11-16 1953-11-16 Indicator for razors

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US2750664A true US2750664A (en) 1956-06-19

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3137939A (en) * 1962-06-06 1964-06-23 George A Waldeck Safety razor marker
US4208984A (en) * 1978-10-12 1980-06-24 Norman Glanzman Razor usage indicator
WO1983002915A1 (en) * 1982-02-25 1983-09-01 Gillette Co A razor handle
US5119557A (en) * 1991-01-03 1992-06-09 John Kaiko Shave counter
USD353020S (en) 1994-02-03 1994-11-29 Mario Conti Razor
US5388331A (en) * 1994-01-28 1995-02-14 Doroodian-Shoja Siamak Wear indicator for a disposable razor
WO1998010903A1 (en) * 1996-09-16 1998-03-19 Neill Edward O Devices for indicating usage of an article
USD401014S (en) 1997-02-27 1998-11-10 The Gillette Company Shaving aid strip for razor cartridge
US5998431A (en) * 1991-08-23 1999-12-07 Gillette Canada Inc. Sustained-release matrices for dental application
USD422380S (en) * 1998-08-31 2000-04-04 The Gillette Company Shaving aid strip for razor cartridge
USD424745S (en) * 1999-08-05 2000-05-09 The Gillette Company Shaving aid strip for razor cartridge
US6185822B1 (en) 1997-02-27 2001-02-13 The Gillette Company Shaving system
USD447283S1 (en) 1997-02-27 2001-08-28 The Gillette Company Shaving aid strip for a razor cartridge
US6295733B1 (en) 1994-08-03 2001-10-02 Warner-Lambert Company Changeable color shaving aid
US20020000041A1 (en) * 1994-01-28 2002-01-03 Siamak Doroodian-Shoja Disposable razor wear indicator
US20040134010A1 (en) * 1991-08-23 2004-07-15 The Gillette Company, A Delaware Corporation Color changing matrix as wear indicator
US7100283B1 (en) 2004-10-18 2006-09-05 Greg Grdodian Shaving system
CN103889667A (en) * 2012-08-29 2014-06-25 任向荣 Apparatus and method for detecting life of shaving blade, and shaving blade
US20210298449A1 (en) * 2020-03-27 2021-09-30 Shad E. Bruce Personal Hygiene Apparatus and Method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1966193A (en) * 1932-10-18 1934-07-10 Weber Erhard Nicolaus Razor
US2316600A (en) * 1941-09-11 1943-04-13 Magazine Repeating Razor Co Blade magazine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1966193A (en) * 1932-10-18 1934-07-10 Weber Erhard Nicolaus Razor
US2316600A (en) * 1941-09-11 1943-04-13 Magazine Repeating Razor Co Blade magazine

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3137939A (en) * 1962-06-06 1964-06-23 George A Waldeck Safety razor marker
US4208984A (en) * 1978-10-12 1980-06-24 Norman Glanzman Razor usage indicator
WO1983002915A1 (en) * 1982-02-25 1983-09-01 Gillette Co A razor handle
US4422237A (en) * 1982-02-25 1983-12-27 The Gillette Company Razor handle
US5119557A (en) * 1991-01-03 1992-06-09 John Kaiko Shave counter
US7338664B2 (en) 1991-08-23 2008-03-04 The Gillette Company Color changing matrix as wear indicator
US20040134010A1 (en) * 1991-08-23 2004-07-15 The Gillette Company, A Delaware Corporation Color changing matrix as wear indicator
US5998431A (en) * 1991-08-23 1999-12-07 Gillette Canada Inc. Sustained-release matrices for dental application
US20020000041A1 (en) * 1994-01-28 2002-01-03 Siamak Doroodian-Shoja Disposable razor wear indicator
US5388331A (en) * 1994-01-28 1995-02-14 Doroodian-Shoja Siamak Wear indicator for a disposable razor
USD353020S (en) 1994-02-03 1994-11-29 Mario Conti Razor
US6295733B1 (en) 1994-08-03 2001-10-02 Warner-Lambert Company Changeable color shaving aid
WO1998010903A1 (en) * 1996-09-16 1998-03-19 Neill Edward O Devices for indicating usage of an article
US6185822B1 (en) 1997-02-27 2001-02-13 The Gillette Company Shaving system
USD447283S1 (en) 1997-02-27 2001-08-28 The Gillette Company Shaving aid strip for a razor cartridge
US6442839B1 (en) 1997-02-27 2002-09-03 The Gillette Company Shaving system
USD401014S (en) 1997-02-27 1998-11-10 The Gillette Company Shaving aid strip for razor cartridge
USD422380S (en) * 1998-08-31 2000-04-04 The Gillette Company Shaving aid strip for razor cartridge
USD424745S (en) * 1999-08-05 2000-05-09 The Gillette Company Shaving aid strip for razor cartridge
US7100283B1 (en) 2004-10-18 2006-09-05 Greg Grdodian Shaving system
CN103889667A (en) * 2012-08-29 2014-06-25 任向荣 Apparatus and method for detecting life of shaving blade, and shaving blade
US20210298449A1 (en) * 2020-03-27 2021-09-30 Shad E. Bruce Personal Hygiene Apparatus and Method

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