US1940855A - Knife - Google Patents

Knife Download PDF

Info

Publication number
US1940855A
US1940855A US546820A US54682031A US1940855A US 1940855 A US1940855 A US 1940855A US 546820 A US546820 A US 546820A US 54682031 A US54682031 A US 54682031A US 1940855 A US1940855 A US 1940855A
Authority
US
United States
Prior art keywords
handle
knife
blade
construction
spring
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
US546820A
Inventor
Friedman Hugo
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US546820A priority Critical patent/US1940855A/en
Application granted granted Critical
Publication of US1940855A publication Critical patent/US1940855A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32Surgical cutting instruments
    • A61B17/3209Incision instruments
    • A61B17/3211Surgical scalpels, knives; Accessories therefor
    • A61B17/3213Surgical scalpels, knives; Accessories therefor with detachable blades
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00Chucks or sockets
    • Y10T279/17Socket type
    • Y10T279/17128Self-grasping
    • Y10T279/17162Yielding detent

Definitions

  • Knives of this class thus far offered to the profession have presented numerous difiiculties in changing from one blade to another.
  • One of the objects of my invention is to provide a construction which will permit the several blades to be changed easily and quickly.
  • Another object is to provide a construction admitting of greater nicety of balance and design.
  • a further object is to provide a construction which will reduce the danger of personal injury to a minimum while changing blades.
  • Figure 1 is a side elevation of the knife
  • Fig. 2 is a top view
  • Fig. 3 is an enlargedview of, the knife with part of the handle broken away; a
  • Fig. 4 is a section on the line 44 of Fig. 2;
  • Fig. 5 is a fragmentary section showing the retaining spring in its raised position and a modified form of blade-positioning means
  • Fig. 6 is a section on the line 6-6 of Fig. 4.
  • the construction shown comprises a knife blade 1 removably retained in the slotted portion 2 of the ham dle 3 by means of the rivets 4 and the retaining spring5.
  • the spring 5 has, at its forward end, an angular portion so formed as to be received in which my invention is illusin the slot 7 of the blade 1.
  • the slottedportion of the handle 3 has a suitable hole 8 bored into it to receive and permit the necessary motion of the headed plunger or push button 9, said plunger having a head 10 to prevent its falling from the knife.
  • the knife blade 1 may be positioned by means of the rib 4a, as shown in Fig. 5, and then retained in position by the retaining spring 5, as before.
  • the user To detach a blade, the user simply grasps the handle in one hand and'presses on the push button 9 with the thumb to movethe latch portion 6 out of the notch '7 in the back of the blade, enabling the bladev to be readily withdrawn lengthwise from engagement with the handle.
  • V i I i In the embodiment shown I have provided a construction which will cause the blade to be posibutton having'a portion engageable for operation tively locked-in position and yet be readily removable. It will be seen that that the construction described enables the blades to be changed easily and quickly without danger of injury to the user. It is also apparent that while I have shown and described a surgical knife, this invention may be'used with any knife or device wherein it is necessary to use interchangeable blades.
  • a knife construction comprising a handle, a blade having a longitudinally extending openended slot in its securing portion, said handle having positioning means which enter the slot in assembly, and means for detachably securing said blade to said handle comprising a cantilever leaf spring member mounted on the handle and extending along the back thereof and having a latch portion adjacent its free end'for engaging an edge of the securing portion and a push button extending transversely through the handle and engaging a portion of the leaf spring intermediate its secured end and its free end, for moving the spring to releasing position, said push on the side of the handle opposite that along which the leaf spring extends.
  • a knife construction comprising a handle, a blade having a longitudinally extending openendedslot in its securing portion, said handle having positioning means which enter the slot in assembly, and means for detachably securing said blade to said'handle comprising a cantilever leaf spring member mounted on the handle and ex tending along the back thereof and having a latch 10o portion adjacent its free end for engagingan edge of the securing portion and a push button extending transversely through the handle and engaging a portion of the leaf spring interme diateits secured end and its free end for mov- 05 ing the spring to releasing position, said push button having a portion engageable for operation on [the side of the handle opposite that along which the leaf spring extends, said leaf spring member having a shank portion extending into the handle and frictionally'held therein whereby the spring can be readily removed for repair and-replacement.

Description

Dec. 26, 1933. FREEMAN} 1,940,855
KNIFE Original Filed June 25, 1951 132 2022 for Patented Dec. 26, 1933 UNITED STATES 1,940,855 KNIFE Hugo Friedman, Chicago, Ill.
Application June 25, 1931,-Serial No. 546,820
Renewed June 5," 1933 2 Claims.
ticularly to dental or surgical knives having detachable blades. Knives of this class thus far offered to the profession have presented numerous difiiculties in changing from one blade to another.
One of the objects of my invention is to provide a construction which will permit the several blades to be changed easily and quickly.
Another object is to provide a construction admitting of greater nicety of balance and design.
A further object is to provide a construction which will reduce the danger of personal injury to a minimum while changing blades.
Further objects will appear from the description and claims.
In the drawin trated,
Figure 1 is a side elevation of the knife;
Fig. 2 is a top view;
Fig. 3 is an enlargedview of, the knife with part of the handle broken away; a
Fig. 4 is a section on the line 44 of Fig. 2;
Fig. 5 is a fragmentary section showing the retaining spring in its raised position and a modified form of blade-positioning means, and
Fig. 6 is a section on the line 6-6 of Fig. 4.
Referring to the drawing in detail, the construction shown comprises a knife blade 1 removably retained in the slotted portion 2 of the ham dle 3 by means of the rivets 4 and the retaining spring5. The spring 5 has, at its forward end, an angular portion so formed as to be received in which my invention is illusin the slot 7 of the blade 1. The slottedportion of the handle 3 has a suitable hole 8 bored into it to receive and permit the necessary motion of the headed plunger or push button 9, said plunger having a head 10 to prevent its falling from the knife. As an alternative construction, the knife blade 1 may be positioned by means of the rib 4a, as shown in Fig. 5, and then retained in position by the retaining spring 5, as before.
In Fig. 4. the spring 5 and the plunger 9 are shown in the position they assume when the blade is locked in position. In Fig. 5 the spring 5 and plunger 9 are shown in the lifted position, as when a blade is to be inserted or withdrawn.
To detach a blade, the user simply grasps the handle in one hand and'presses on the push button 9 with the thumb to movethe latch portion 6 out of the notch '7 in the back of the blade, enabling the bladev to be readily withdrawn lengthwise from engagement with the handle.
It will be apparent that in the event the spring 5 breaks, it may be replaced without difficulty.
since it can be removed by simply withdrawing the shank portion 11 from the opening in the handle into which it fits snugly. V i I i In the embodiment shown I have provided a construction which will cause the blade to be posibutton having'a portion engageable for operation tively locked-in position and yet be readily removable. It will be seen that that the construction described enables the blades to be changed easily and quickly without danger of injury to the user. It is also apparent that while I have shown and described a surgical knife, this invention may be'used with any knife or device wherein it is necessary to use interchangeable blades.
It will be apparent to those skilled in the art that various modifications thereof may be appar- 7 ent to those skilled in the art without departing from the spirit and scope of this invention and, therefore, the same is to be limited only by the scope of the prior art andthe appended claims.
I claim:
1. A knife construction comprising a handle, a blade having a longitudinally extending openended slot in its securing portion, said handle having positioning means which enter the slot in assembly, and means for detachably securing said blade to said handle comprising a cantilever leaf spring member mounted on the handle and extending along the back thereof and having a latch portion adjacent its free end'for engaging an edge of the securing portion and a push button extending transversely through the handle and engaging a portion of the leaf spring intermediate its secured end and its free end, for moving the spring to releasing position, said push on the side of the handle opposite that along which the leaf spring extends.
2.. A knife construction comprising a handle, a blade having a longitudinally extending openendedslot in its securing portion, said handle having positioning means which enter the slot in assembly, and means for detachably securing said blade to said'handle comprising a cantilever leaf spring member mounted on the handle and ex tending along the back thereof and having a latch 10o portion adjacent its free end for engagingan edge of the securing portion and a push button extending transversely through the handle and engaging a portion of the leaf spring interme diateits secured end and its free end for mov- 05 ing the spring to releasing position, said push button having a portion engageable for operation on [the side of the handle opposite that along which the leaf spring extends, said leaf spring member having a shank portion extending into the handle and frictionally'held therein whereby the spring can be readily removed for repair and-replacement.
HU GO FRIEDMAN. V
US546820A 1931-06-25 1931-06-25 Knife Expired - Lifetime US1940855A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US546820A US1940855A (en) 1931-06-25 1931-06-25 Knife

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US546820A US1940855A (en) 1931-06-25 1931-06-25 Knife

Publications (1)

Publication Number Publication Date
US1940855A true US1940855A (en) 1933-12-26

Family

ID=24182154

Family Applications (1)

Application Number Title Priority Date Filing Date
US546820A Expired - Lifetime US1940855A (en) 1931-06-25 1931-06-25 Knife

Country Status (1)

Country Link
US (1) US1940855A (en)

Cited By (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507019A (en) * 1946-12-06 1950-05-09 Carl S Johnson Knife with reversible blade
US2530918A (en) * 1946-08-03 1950-11-21 Taylor Don Hair shaper
US2630029A (en) * 1949-09-09 1953-03-03 Imp Brass Mfg Co Combination tube working tool and reamer
US2695450A (en) * 1950-03-13 1954-11-30 Western States Cutlery And Mfg Combination cutlery tool
US2939213A (en) * 1958-10-13 1960-06-07 John M Daniel Insertible blade scissors
US2970569A (en) * 1958-03-26 1961-02-07 Erikan Elsa Heynau Writing implements
US3085332A (en) * 1961-04-26 1963-04-16 Philip Morris Inc Handle for surgical blades, and the like
US3262205A (en) * 1964-01-21 1966-07-26 Ruth B Arden Scalpel
US3300858A (en) * 1965-03-30 1967-01-31 Dominion Electric Corp Blade-connecting means
US3307259A (en) * 1964-06-22 1967-03-07 Scovill Manufacturing Co Power operated knife
US3317998A (en) * 1965-09-20 1967-05-09 John J Matwijcow Interlocked blade and holder having resilient latching means
US3412467A (en) * 1966-11-25 1968-11-26 John J. Matwijcow Surgical scalpel
US3683498A (en) * 1969-11-18 1972-08-15 Stanley Works Cutting knife
US3877147A (en) * 1972-11-14 1975-04-15 Acme United Corp Disposable scalpel handle
US3900950A (en) * 1974-03-18 1975-08-26 Walter W Collins Knife with removable blade
US4534348A (en) * 1982-01-12 1985-08-13 Moskovsky Nauchno-Issledovatelsky Institut Mirrokhirurgii Glaza Instrument for making corneal incisions
US4608757A (en) * 1985-04-11 1986-09-02 Eckerle Douglas W Double ended throwing knife
EP0289957A1 (en) * 1987-04-30 1988-11-09 Kai Cutlery Center Co., Ltd. Cutter
US4813141A (en) * 1987-05-20 1989-03-21 The Perfectrim Limited Partnership Carpet seam cutter
US5263972A (en) * 1991-01-11 1993-11-23 Stryker Corporation Surgical handpiece chuck and blade
US5468247A (en) * 1993-05-26 1995-11-21 Stryker Corporation Saw blade for powered medical handpiece
US5924206A (en) * 1997-09-30 1999-07-20 Becton, Dickinson And Company Reusable device handle
US6105260A (en) * 1998-01-23 2000-08-22 Alterra Holdings Corporation Universal saw adapter
US6113618A (en) * 1999-01-13 2000-09-05 Stryker Corporation Surgical saw with spring-loaded, low-noise cutting blade
WO2000061014A1 (en) * 1999-04-09 2000-10-19 Canica Design Inc. Scalpel assembly
US20040039397A1 (en) * 2002-08-22 2004-02-26 Helmut Weber Medical tool
US20070028454A1 (en) * 2005-08-02 2007-02-08 The Stanley Works Compact utility knife
US20070156160A1 (en) * 2005-12-30 2007-07-05 Petersen Thomas D Handle with removable disposable surgical blade and blade removal system including disposal container
US20090204137A1 (en) * 2004-10-22 2009-08-13 Maxwell Timothy J Safety scalpel
US7797836B2 (en) 2005-08-02 2010-09-21 The Stanley Works Compact utility knife
EP2292389A3 (en) * 2006-10-16 2011-04-20 Victorinox Ag Pocket tool, in particular pocket knife
US8201336B2 (en) 2008-05-02 2012-06-19 Olympia Tools International, Inc. Retractable utility knife
USD670551S1 (en) 2011-03-01 2012-11-13 Milwaukee Electric Tool Corporation Utility knife
US20120324738A1 (en) * 2011-06-24 2012-12-27 Hui-Tung Chu Pocketknife with an assisted opening and closing mechanism
US20130019481A1 (en) * 2011-07-22 2013-01-24 Chervon (Hk) Limited Electric pruner
USD686902S1 (en) 2011-03-01 2013-07-30 Milwaukee Electric Tool Corporation Utility knife
US8695221B2 (en) 2008-08-21 2014-04-15 Wen Hao Utility knife with extended travel carriage
USD769693S1 (en) 2015-06-16 2016-10-25 Milwaukee Electric Tool Corporation Utility knife
USD769692S1 (en) 2015-06-16 2016-10-25 Milwaukee Electric Tool Corporation Utility knife
US20170151682A1 (en) * 2015-11-30 2017-06-01 Kantas Products Co., Ltd. Knife structure capable of safely replacing blade
US20170266822A1 (en) * 2016-03-15 2017-09-21 Dominick Scalise Knife and Method
US10144139B2 (en) 2015-04-02 2018-12-04 Milwaukee Electric Tool Corporation Utility knife
US11109871B2 (en) * 2012-07-12 2021-09-07 DePuy Synthes Products, Inc. Saw, a saw blade, a connection mechanism and associated methods
US11154380B2 (en) 2017-10-26 2021-10-26 King Abdulaziz University Dental restoration scalpel
US11305440B2 (en) 2019-12-31 2022-04-19 Good Sportsman Marketing, Llc Knife with interchangeable blade
US11338456B2 (en) * 2019-02-28 2022-05-24 Belair Instrument Company, Llc TrimSafe histology radius blade grossing knife
US20230001591A1 (en) * 2021-07-01 2023-01-05 Mike H. Okamura Knife with replaceable blade
US11642801B1 (en) * 2022-07-01 2023-05-09 Darex, Llc Utility blades and combination blade holders
WO2024006740A1 (en) * 2022-07-01 2024-01-04 Darex, Llc Utility blades and combination blade holders

Cited By (74)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2530918A (en) * 1946-08-03 1950-11-21 Taylor Don Hair shaper
US2507019A (en) * 1946-12-06 1950-05-09 Carl S Johnson Knife with reversible blade
US2630029A (en) * 1949-09-09 1953-03-03 Imp Brass Mfg Co Combination tube working tool and reamer
US2695450A (en) * 1950-03-13 1954-11-30 Western States Cutlery And Mfg Combination cutlery tool
US2970569A (en) * 1958-03-26 1961-02-07 Erikan Elsa Heynau Writing implements
US2939213A (en) * 1958-10-13 1960-06-07 John M Daniel Insertible blade scissors
US3085332A (en) * 1961-04-26 1963-04-16 Philip Morris Inc Handle for surgical blades, and the like
US3262205A (en) * 1964-01-21 1966-07-26 Ruth B Arden Scalpel
US3307259A (en) * 1964-06-22 1967-03-07 Scovill Manufacturing Co Power operated knife
US3300858A (en) * 1965-03-30 1967-01-31 Dominion Electric Corp Blade-connecting means
US3317998A (en) * 1965-09-20 1967-05-09 John J Matwijcow Interlocked blade and holder having resilient latching means
US3412467A (en) * 1966-11-25 1968-11-26 John J. Matwijcow Surgical scalpel
US3683498A (en) * 1969-11-18 1972-08-15 Stanley Works Cutting knife
US3877147A (en) * 1972-11-14 1975-04-15 Acme United Corp Disposable scalpel handle
US3900950A (en) * 1974-03-18 1975-08-26 Walter W Collins Knife with removable blade
US4534348A (en) * 1982-01-12 1985-08-13 Moskovsky Nauchno-Issledovatelsky Institut Mirrokhirurgii Glaza Instrument for making corneal incisions
US4608757A (en) * 1985-04-11 1986-09-02 Eckerle Douglas W Double ended throwing knife
EP0289957A1 (en) * 1987-04-30 1988-11-09 Kai Cutlery Center Co., Ltd. Cutter
US4922614A (en) * 1987-04-30 1990-05-08 Kai Cutlery Center Co., Ltd. Cutter
US4813141A (en) * 1987-05-20 1989-03-21 The Perfectrim Limited Partnership Carpet seam cutter
US5263972A (en) * 1991-01-11 1993-11-23 Stryker Corporation Surgical handpiece chuck and blade
US5439472A (en) * 1991-01-11 1995-08-08 Stryker Corporation Surgical handpiece chuck and blade
US5468247A (en) * 1993-05-26 1995-11-21 Stryker Corporation Saw blade for powered medical handpiece
US5702415A (en) * 1993-05-26 1997-12-30 Stryker Corporation Chuck and blade for powered medical handpiece
US5924206A (en) * 1997-09-30 1999-07-20 Becton, Dickinson And Company Reusable device handle
US6105260A (en) * 1998-01-23 2000-08-22 Alterra Holdings Corporation Universal saw adapter
US6508003B1 (en) 1998-01-23 2003-01-21 Alterra Holdings Corporation Universal saw adapter
US6113618A (en) * 1999-01-13 2000-09-05 Stryker Corporation Surgical saw with spring-loaded, low-noise cutting blade
WO2000061014A1 (en) * 1999-04-09 2000-10-19 Canica Design Inc. Scalpel assembly
US7748124B1 (en) * 1999-04-09 2010-07-06 Canica Design, Inc. Scalpel assembly
US20040039397A1 (en) * 2002-08-22 2004-02-26 Helmut Weber Medical tool
FR2843693A1 (en) * 2002-08-22 2004-02-27 Helmut Weber Vetrebral distractor for surgery, has valve in area of free axial ends of pliers unit and releasably connected by securing mechanism of type, where push button of type is provided on mechanism, via which connection can be released
US7081118B2 (en) 2002-08-22 2006-07-25 Helmut Weber Medical tool
US20090204137A1 (en) * 2004-10-22 2009-08-13 Maxwell Timothy J Safety scalpel
US8819943B2 (en) 2004-10-22 2014-09-02 Canica Design Inc. Safety scalpel
US7520059B2 (en) 2005-08-02 2009-04-21 The Stanley Works Compact utility knife
US20070028454A1 (en) * 2005-08-02 2007-02-08 The Stanley Works Compact utility knife
US7797836B2 (en) 2005-08-02 2010-09-21 The Stanley Works Compact utility knife
US7930829B2 (en) 2005-08-02 2011-04-26 Stanley Black & Decker, Inc. Compact utility knife
US8549755B2 (en) 2005-08-02 2013-10-08 Stanley Black & Decker, Inc. Compact utility knife
US20070156160A1 (en) * 2005-12-30 2007-07-05 Petersen Thomas D Handle with removable disposable surgical blade and blade removal system including disposal container
US7647704B2 (en) * 2005-12-30 2010-01-19 Petersen Thomas D Handle with removable disposable surgical blade
EP2292389A3 (en) * 2006-10-16 2011-04-20 Victorinox Ag Pocket tool, in particular pocket knife
US9517569B2 (en) 2006-10-16 2016-12-13 Victorinox Ag Pocket tool, in particular a pocket knife
US8201336B2 (en) 2008-05-02 2012-06-19 Olympia Tools International, Inc. Retractable utility knife
US8984755B2 (en) 2008-05-02 2015-03-24 Olympia Tools International, Inc. Retractable utility knife
US8695221B2 (en) 2008-08-21 2014-04-15 Wen Hao Utility knife with extended travel carriage
USD670551S1 (en) 2011-03-01 2012-11-13 Milwaukee Electric Tool Corporation Utility knife
USD686902S1 (en) 2011-03-01 2013-07-30 Milwaukee Electric Tool Corporation Utility knife
USD686901S1 (en) 2011-03-01 2013-07-30 Milwaukee Electric Tool Corporation Utility knife
USD848234S1 (en) 2011-03-01 2019-05-14 Milwaukee Electric Tool Corporation Utility knife
USD810539S1 (en) 2011-03-01 2018-02-20 Milwaukee Electric Tool Corporation Utility knife
US20120324738A1 (en) * 2011-06-24 2012-12-27 Hui-Tung Chu Pocketknife with an assisted opening and closing mechanism
US8584367B2 (en) * 2011-06-24 2013-11-19 Hui-Tung Chu Pocketknife with an assisted opening and closing mechanism
US20130019481A1 (en) * 2011-07-22 2013-01-24 Chervon (Hk) Limited Electric pruner
US11109871B2 (en) * 2012-07-12 2021-09-07 DePuy Synthes Products, Inc. Saw, a saw blade, a connection mechanism and associated methods
US10144139B2 (en) 2015-04-02 2018-12-04 Milwaukee Electric Tool Corporation Utility knife
US11724408B2 (en) 2015-04-02 2023-08-15 Milwaukee Electric Tool Corporation Utility knife
USD769692S1 (en) 2015-06-16 2016-10-25 Milwaukee Electric Tool Corporation Utility knife
USD769693S1 (en) 2015-06-16 2016-10-25 Milwaukee Electric Tool Corporation Utility knife
US20170151682A1 (en) * 2015-11-30 2017-06-01 Kantas Products Co., Ltd. Knife structure capable of safely replacing blade
US20170266822A1 (en) * 2016-03-15 2017-09-21 Dominick Scalise Knife and Method
US10464223B2 (en) * 2016-03-15 2019-11-05 Dominick Scalise Knife and method
US11219504B1 (en) 2017-10-26 2022-01-11 King Abdulaziz University Dental cosmetic scalpel
US11219503B2 (en) 2017-10-26 2022-01-11 King Abdulaziz University Method for contouring a dental restoration
US11154380B2 (en) 2017-10-26 2021-10-26 King Abdulaziz University Dental restoration scalpel
US11338456B2 (en) * 2019-02-28 2022-05-24 Belair Instrument Company, Llc TrimSafe histology radius blade grossing knife
US20220281126A1 (en) * 2019-02-28 2022-09-08 Belair Instrument Company, Llc Trimsafe histology radius blade grossing knife
US11738473B2 (en) * 2019-02-28 2023-08-29 Belair Instrument Company, Llc Trimsafe histology radius blade grossing knife
US11305440B2 (en) 2019-12-31 2022-04-19 Good Sportsman Marketing, Llc Knife with interchangeable blade
US20230001591A1 (en) * 2021-07-01 2023-01-05 Mike H. Okamura Knife with replaceable blade
US11642801B1 (en) * 2022-07-01 2023-05-09 Darex, Llc Utility blades and combination blade holders
AU2023203631B1 (en) * 2022-07-01 2023-08-03 Darex, Llc Utility blades and combination blade holders
WO2024006740A1 (en) * 2022-07-01 2024-01-04 Darex, Llc Utility blades and combination blade holders

Similar Documents

Publication Publication Date Title
US1940855A (en) Knife
US3262205A (en) Scalpel
US4777947A (en) Endocervical curette
US2575652A (en) Pocket tweezer article
US2693795A (en) Surgical retractor
US2105239A (en) Tool handle
US4932957A (en) Endocervical curette
US2284168A (en) Adjustable retractable tool
US2288011A (en) Teeth separator
US2605545A (en) Blade and toolholder
US1708578A (en) Surgical instrument
US9717521B2 (en) Surgical knife and tools adapted for simplified blade removal
US3172316A (en) Blade-removing tool
US2607987A (en) Depth gauge cutter knife
US3325900A (en) Surgical blade holder for dentistry
US2237331A (en) Cutting device
US872567A (en) Curette.
US2658541A (en) Hacksaw frame with spare blade storage chamber
US1887124A (en) Razor kit
US3846909A (en) Combination of a knife and sharpener
US2632949A (en) Knife
US2564379A (en) Electric razor
US1521084A (en) Pocketknife
US1564356A (en) Adenotome
US1706712A (en) Detachable-blade knife