US3879847A - Cutter with forwardly and rearwardly displaceable blade - Google Patents

Cutter with forwardly and rearwardly displaceable blade Download PDF

Info

Publication number
US3879847A
US3879847A US466456A US46645674A US3879847A US 3879847 A US3879847 A US 3879847A US 466456 A US466456 A US 466456A US 46645674 A US46645674 A US 46645674A US 3879847 A US3879847 A US 3879847A
Authority
US
United States
Prior art keywords
blade
cutter
cutter handle
slide
grooves
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
US466456A
Inventor
Dieter Roll
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.)
Smart AG
Original Assignee
Smart AG
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 Smart AG filed Critical Smart AG
Application granted granted Critical
Publication of US3879847A publication Critical patent/US3879847A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B5/00—Hand knives with one or more detachable blades
    • B26B5/001—Hand knives with one or more detachable blades with blades being slid out of handle immediately prior to use

Definitions

  • ABSTRACT A cutter with a forwardly and rearwardly displaceable blade which is supported in a blade slide movable from the outside and guided in the handle of the cutter and which blade slide can be selectively arrested in different locking positions.
  • the blade slide which is of substantially trough-shape configuration and receives the blade between two side edges or walls, is guided by its side edges in grooves at the cutter handle. These grooves extend up to the end of the cutter handle.
  • the part of the blade slide receiving the blade is outwardly movable to a location in front of the cutter handle end for the purpose of changing the blade.
  • the present invention relates to a new and improved construction of cutter or knife implement with a blade which can be forwardly or rearwardly displaced, the blade is supported in a blade slide movable from the outside and guided in the cutter handle or grip, and the blade slide can be selectively arrested or locked in different locking positions.
  • Cutters or knife implements of this type are used by people, for instance, in handcrafts for the most different work, and therefore there are available on the market blades with very different shapes of the cutting edge, which can possess a linear, curved or even serrated construction.
  • the blades of such cutters must be easily exchangeable. During non-use of the cutter, the blade must be completely retractable into the cutter handle or grip in order to eliminate any possibility of injury.
  • the cutter handle composed of two halves must be threadably disconnected for the purpose of replacing the blade, requiring a great deal of time and further requiring the constant availability of a screwdriver or other suitable tool. This circumstance can therefore impede a rational and economical use of such cutter.
  • Another object of the invention aims at the provision of a new and improved construction of cutter by means of which it is possible to also use blades or knives of different width, so that there is not required the necessity of procuring a new set of cutters if there are to be used for special work blades having different widths.
  • the cutter of the previously mentioned type is manifested by the features that the blade slide, which is substantially trough-shaped, and receiving the blade between two side edges or walls thereof, is guided by means of such side edges in grooves provided at the cutter handle. These grooves extend up to an end of the cutter handle.
  • the part or portion of the blade slide which houses the blade can be outwardly extended up to a location in front of the cutter handle end for the purpose of exchanging the blade.
  • the blade slide is exchangeable for the purpose of being able to use blades of different width, and at the cutter handle there are provided pairs of grooves with different mutual spacing of the grooves of each groove pair for guiding the side edges of different width blade slides.
  • FIG. 1 is a side view of a cutter designed according to the invention with the blade slide pushed out or extended for purposes of exchanging the blade;
  • FIG. 2 illustrates the cutter in its position of use wherein the blade slide is retracted into the cutter handle or grip
  • FIG. 3 is a view of the front end of the cutter handle or grip.
  • FIGS. l-3 the cutter or knife implement depicted in FIGS. l-3 will be understood to comprise a cutter handle or grip 1 composed of two handle halves or handle portions la and lb (FIG. 3) detachably assembled together by means of screws 2 and 3 or equivalent fastening expedients.
  • a guide slot 4 extends along the central lengthwise extending portion of the cutter handle 1.
  • the guide slot 4 is widened at its lengthwise extending edges in that at such lengthwise extending edges there are formed grooves 5 at the cutter handle portion la of the cutter handle 1, as best seen by referring to FIG. 3.
  • the parting or separation plane 6 between both of the cutter handle halves or portions la and lb of the cutter handle 1 extends through the guide slot 4 and is flush with its lower surface.
  • a blade or knife slide 7 which, as best seen by referring to FIG. 1, possesses a substantially trough-shaped construction through the provision of two side edges or walls 8 and 9, in order to thus receive the blade or knife 10 between such side edges. Both of the side edges 8 and 9 are guided in the grooves 5 of the cutter handle 1. These grooves, according to the showing of FIG. I, extend up to the front end of the cutter handle, so that the blade slide 7, even in the position where it is forwardly extended or ejected for the purpose of exchanging the blade, is at least guided by means of the one side edge or wall 8 in the associated groove 5.
  • the rear portion or part 11 of the blade slide 7 forms a narrower tongue member which is resilient and upwardly flexed or bent at its end, as indicated by reference character 12, extending by means of such flexed portion 12 forwardly through a slot 13 provided at the cutter handle portion 1a and at that location is again flexed into a key or actuation tab 14.
  • the blade slide 7 can be forwardly and rearwardly shifted within the cutter handle I and locked or engaged at different positions, wherein not further illustrated projections at the part 11 of the blade slide releasably engage with recesses 15 at the cutter handle 1.
  • the blade slide 7 illustrated in the drawing must be exchangeable for a narrower blade slide which has not been particularly shown, but is similar in construction to the illustrated blade slide.
  • the cutter handle portion la there are provided at the cutter handle portion la two further grooves 20 possessing a smaller mutual spacing from one another and intended to guide a narrower blade slide.
  • a cutter apparatus comprising a cutter handle, a blade slide movably arranged in the cutter handle, means for initiating movement of the blade slide from externally of the cutter handle, a forwardly and rearwardly retractable blade supported at the blade slide, said blade slide possessing a substantially troughshaped configuration including two side edges for reciving the blade therebetween, said cutter handle being equipped with grooves extending up to an end of the cutter handle from which protrudes the blade, said blade slide being guided with said side edges in said grooves of the cutter handle, said blade slide having a portion receiving the blade, said blade receiving portion of the blade slide being movable outwardly up to a location in front of said end of the cutter handle for the purpose of exchanging the blade, said blade slide being exchangeable for the purpose of being able to use different width blades, said cutter handle being provided with pairs of grooves of different mutual spacing from one another, the grooves of each pair guiding the side edges of blade slides of different width from one another.

Abstract

A cutter with a forwardly and rearwardly displaceable blade which is supported in a blade slide movable from the outside and guided in the handle of the cutter and which blade slide can be selectively arrested in different locking positions. The blade slide which is of substantially trough-shape configuration and receives the blade between two side edges or walls, is guided by its side edges in grooves at the cutter handle. These grooves extend up to the end of the cutter handle. The part of the blade slide receiving the blade is outwardly movable to a location in front of the cutter handle end for the purpose of changing the blade.

Description

United States Patent [1 1 Roll [451 Apr. 29, 1975 CUTTER WITH FORWARDLY AND REARWARDLY DISPLACEABLE BLADE [75] Inventor: Dieter Roll, Sedrun, Grisian,
211 App]. No.2 466,456
[30] Foreign Application Priority Data May 11. 1973 Switzerland 6715/73 [56] References Cited UNITED STATES PATENTS H1938 Laverty 30/162 9/1951 Trimble et al. 30/162 X 3,063,147 11/1962 Paparelli 30/320 X 3,171,201 3/1965 Carifi 3,577,637 5/1971 Braginetz..
3.708.881 1/1973 Bennett 30/335 Primary E.\'aminerAl Lawrence Smith Assistant E.raminer.l. T. Zatarga Attorney, Agent, or FirmWerner W. Kleeman [57] ABSTRACT A cutter with a forwardly and rearwardly displaceable blade which is supported in a blade slide movable from the outside and guided in the handle of the cutter and which blade slide can be selectively arrested in different locking positions. The blade slide which is of substantially trough-shape configuration and receives the blade between two side edges or walls, is guided by its side edges in grooves at the cutter handle. These grooves extend up to the end of the cutter handle. The part of the blade slide receiving the blade is outwardly movable to a location in front of the cutter handle end for the purpose of changing the blade.
1 Claim, 3 Drawing Figures CUTTER WITH FORWARDLY AND REARWARDLY DISPLACEABLE BLADE BACKGROUND OF THE INVENTION The present invention relates to a new and improved construction of cutter or knife implement with a blade which can be forwardly or rearwardly displaced, the blade is supported in a blade slide movable from the outside and guided in the cutter handle or grip, and the blade slide can be selectively arrested or locked in different locking positions.
Cutters or knife implements of this type are used by people, for instance, in handcrafts for the most different work, and therefore there are available on the market blades with very different shapes of the cutting edge, which can possess a linear, curved or even serrated construction. In order to be able to replace a blade for a differently shaped blade or a dull blade for a new one, the blades of such cutters must be easily exchangeable. During non-use of the cutter, the blade must be completely retractable into the cutter handle or grip in order to eliminate any possibility of injury.
According to a known construction of cutter of this type, the cutter handle composed of two halves must be threadably disconnected for the purpose of replacing the blade, requiring a great deal of time and further requiring the constant availability of a screwdriver or other suitable tool. This circumstance can therefore impede a rational and economical use of such cutter.
SUMMARY OF THE INVENTION Hence, it is a primary object of the present invention to provide an improved cutter rendering possible a rapid removal or exchange of the blade without having to dismantle the cutter handle.
Another object of the invention aims at the provision of a new and improved construction of cutter by means of which it is possible to also use blades or knives of different width, so that there is not required the necessity of procuring a new set of cutters if there are to be used for special work blades having different widths.
Now in order to implement these and still further objects of the invention, which will become more readily apparent as the description proceeds, the cutter of the previously mentioned type, as contemplated by the invention, is manifested by the features that the blade slide, which is substantially trough-shaped, and receiving the blade between two side edges or walls thereof, is guided by means of such side edges in grooves provided at the cutter handle. These grooves extend up to an end of the cutter handle. The part or portion of the blade slide which houses the blade can be outwardly extended up to a location in front of the cutter handle end for the purpose of exchanging the blade.
According to a preferred manifestation of the invention, the blade slide is exchangeable for the purpose of being able to use blades of different width, and at the cutter handle there are provided pairs of grooves with different mutual spacing of the grooves of each groove pair for guiding the side edges of different width blade slides.
BRIEF DESCRIPTION OF THE DRAWING The invention will be better understood and objects other than those set forth above, will become apparent when consideration is given to the following detailed description thereof. Such description makes reference to the annexed drawing wherein:
FIG. 1 is a side view of a cutter designed according to the invention with the blade slide pushed out or extended for purposes of exchanging the blade;
FIG. 2 illustrates the cutter in its position of use wherein the blade slide is retracted into the cutter handle or grip; and
FIG. 3 is a view of the front end of the cutter handle or grip.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Describing now the drawing, the cutter or knife implement depicted in FIGS. l-3 will be understood to comprise a cutter handle or grip 1 composed of two handle halves or handle portions la and lb (FIG. 3) detachably assembled together by means of screws 2 and 3 or equivalent fastening expedients. Between both handle halves la and lb a guide slot 4 extends along the central lengthwise extending portion of the cutter handle 1. The guide slot 4 is widened at its lengthwise extending edges in that at such lengthwise extending edges there are formed grooves 5 at the cutter handle portion la of the cutter handle 1, as best seen by referring to FIG. 3. The parting or separation plane 6 between both of the cutter handle halves or portions la and lb of the cutter handle 1 extends through the guide slot 4 and is flush with its lower surface.
In the guide slot 4 there is displaceably guided for toand-fro movement a blade or knife slide 7 which, as best seen by referring to FIG. 1, possesses a substantially trough-shaped construction through the provision of two side edges or walls 8 and 9, in order to thus receive the blade or knife 10 between such side edges. Both of the side edges 8 and 9 are guided in the grooves 5 of the cutter handle 1. These grooves, according to the showing of FIG. I, extend up to the front end of the cutter handle, so that the blade slide 7, even in the position where it is forwardly extended or ejected for the purpose of exchanging the blade, is at least guided by means of the one side edge or wall 8 in the associated groove 5. The rear portion or part 11 of the blade slide 7 forms a narrower tongue member which is resilient and upwardly flexed or bent at its end, as indicated by reference character 12, extending by means of such flexed portion 12 forwardly through a slot 13 provided at the cutter handle portion 1a and at that location is again flexed into a key or actuation tab 14. With the aid of this key or tab 14 the blade slide 7 can be forwardly and rearwardly shifted within the cutter handle I and locked or engaged at different positions, wherein not further illustrated projections at the part 11 of the blade slide releasably engage with recesses 15 at the cutter handle 1.
In order to be able to use blades of different width with the same cutter, the blade slide 7 illustrated in the drawing must be exchangeable for a narrower blade slide which has not been particularly shown, but is similar in construction to the illustrated blade slide. For this purpose there are provided at the cutter handle portion la two further grooves 20 possessing a smaller mutual spacing from one another and intended to guide a narrower blade slide.
While there is shown and described present preferred embodiments of the invention, it is to be distinctly understood that the invention is not limited thereto, but may be otherwise variously embodied and practiced within the scope of the following claims. Accordingly,
What is claimed is:
1. A cutter apparatus comprising a cutter handle, a blade slide movably arranged in the cutter handle, means for initiating movement of the blade slide from externally of the cutter handle, a forwardly and rearwardly retractable blade supported at the blade slide, said blade slide possessing a substantially troughshaped configuration including two side edges for reciving the blade therebetween, said cutter handle being equipped with grooves extending up to an end of the cutter handle from which protrudes the blade, said blade slide being guided with said side edges in said grooves of the cutter handle, said blade slide having a portion receiving the blade, said blade receiving portion of the blade slide being movable outwardly up to a location in front of said end of the cutter handle for the purpose of exchanging the blade, said blade slide being exchangeable for the purpose of being able to use different width blades, said cutter handle being provided with pairs of grooves of different mutual spacing from one another, the grooves of each pair guiding the side edges of blade slides of different width from one another.

Claims (1)

1. A cutter apparatus comprising a cutter handle, a blade slide movably arranged in the cutter handle, means for initiating movement of the blade slide from externally of the cutter handle, a forwardly and rearwardly retractable blade supported at the blade slide, said blade slide possessing a substantially troughshaped configuration including two side edges for reciving the blade therebetween, said cutter handle being equipped with grooves extending up to an end of the cutter handle from which protrudes the blade, said blade slide being guided with said side edges in said grooves of the cutter handle, said blade slide having a portion receiving the blade, said blade receiving portion of the blade slide being movable outwardly up to a location in front of said end of the cutter handle for the purpose of exchanging the blade, said blade slide being exchangeable for the purpose of being able to use different width blades, said cutter handle being provided with pairs of grooves of different mutual spacing from one another, the grooves of each pair guiding the side edges of blade slides of different width from one another.
US466456A 1973-05-11 1974-05-02 Cutter with forwardly and rearwardly displaceable blade Expired - Lifetime US3879847A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH671573A CH547686A (en) 1973-05-11 1973-05-11 KNIFE WITH FORWARD AND RETURN BLADE.

Publications (1)

Publication Number Publication Date
US3879847A true US3879847A (en) 1975-04-29

Family

ID=4313908

Family Applications (1)

Application Number Title Priority Date Filing Date
US466456A Expired - Lifetime US3879847A (en) 1973-05-11 1974-05-02 Cutter with forwardly and rearwardly displaceable blade

Country Status (5)

Country Link
US (1) US3879847A (en)
CH (1) CH547686A (en)
DE (1) DE2421174C3 (en)
GB (1) GB1449374A (en)
NL (1) NL7406298A (en)

Cited By (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4005525A (en) * 1975-08-29 1977-02-01 Allway Tools Inc. Retractable cutting implement
US4012836A (en) * 1975-05-30 1977-03-22 Safe-T-Cut Incorporated Carton knife
US4089112A (en) * 1976-09-30 1978-05-16 Pacific Handy Cutter, Inc. Adjustable blade knife
US4209900A (en) * 1978-01-25 1980-07-01 Stanley Tools Limited Retractable blade knife
US4761882A (en) * 1986-02-18 1988-08-09 Hunt X-Acto, Inc. Utility knife
US4899443A (en) * 1987-10-31 1990-02-13 Martor-Argentax E.H. Beermann Kg Safety knife for cardboard and like materials
US5131149A (en) * 1991-06-19 1992-07-21 Lynn C. Thompson Folding knife
US5250064A (en) * 1992-10-07 1993-10-05 Biological Tissue Reserve, Inc. Shield for surgical scalpel blades
US5285574A (en) * 1992-11-06 1994-02-15 Cosco Industries, Inc. Carton opener
US5344424A (en) * 1993-03-12 1994-09-06 Roberts Philip L Selectively retractable, disposable surgical knife
US5386632A (en) * 1993-01-12 1995-02-07 Pacific Handy Cutter, Inc. Ergonomic utility knife/box cutter and method of making
US5475925A (en) * 1994-03-21 1995-12-19 Newman; Philip H. Three-piece retractable-bladed knife
US5649364A (en) * 1995-01-25 1997-07-22 Ilanlou; Jamshid Disposable multi-blade straight razor
US5779647A (en) * 1995-06-07 1998-07-14 Chau; Sonny Automated biopsy instruments
US5813121A (en) * 1996-06-17 1998-09-29 Allway Tools, Inc. Automatically retractable utility knife
USD430466S (en) * 1999-10-11 2000-09-05 Schmidt G Gerry Utility knife blade guard
US6192589B1 (en) 1999-06-25 2001-02-27 The Stanley Works Utility knife
USD444368S1 (en) 1999-05-07 2001-07-03 American Safety Razor Retractable utility knife
US6263577B1 (en) 1998-10-06 2001-07-24 American Safety Razor Automatic spring retractable utility knife
US6314646B1 (en) 1999-12-15 2001-11-13 Pacific Handy Cutter, Inc. Utility knife
US6374497B1 (en) * 2001-07-09 2002-04-23 Taiwan San Tyau Co., Ltd. Utility cutter
US6513246B2 (en) 2000-11-14 2003-02-04 Great Neck Saw Manufacturers, Inc. Utility knife
US6550144B1 (en) * 1999-04-09 2003-04-22 Harald Berns Hollow-handle razor knife with blade slide
US6589258B2 (en) * 2000-05-10 2003-07-08 Giuseppe Pilo Disposable surgical safety scalpel
US20030144678A1 (en) * 1996-02-07 2003-07-31 Hellenkamp Johann F. Automatic surgical device and control assembly for cutting a cornea
US6605099B1 (en) 1996-02-07 2003-08-12 Johann F. Hellenkamp Automatic surgical device and control assembly for cutting a cornea
US20040139614A1 (en) * 2003-01-17 2004-07-22 Tebo Glenn J. Utility knife
US20040236358A1 (en) * 2003-04-07 2004-11-25 Barrile-Josephson Craig A. Bar-link drive system for a microkeratome
US20050188541A1 (en) * 2003-11-10 2005-09-01 Brown Donald A. Utility knife with actuator for moving blade carrier and for releasing blade therefrom, and related method
US20060253996A1 (en) * 2005-05-12 2006-11-16 Rosalie Bianco Hammer tacker with cutter
US20070028454A1 (en) * 2005-08-02 2007-02-08 The Stanley Works Compact utility knife
US20070028455A1 (en) * 2005-08-02 2007-02-08 The Stanley Works Compact utility knife
US20070050988A1 (en) * 2005-09-08 2007-03-08 Helen Of Troy Limited Utility knife
US20070244496A1 (en) * 1996-02-07 2007-10-18 Hellenkamp Johann F Automatic surgical device and control assembly for cutting a cornea
US20080189956A1 (en) * 2005-10-13 2008-08-14 Gudula Polei Knife
US20100043235A1 (en) * 2008-08-21 2010-02-25 Wen Hao Utility knife with extended travel carriage
US20100223793A1 (en) * 2009-03-04 2010-09-09 The Stanley Works Utility knife
US20110167647A1 (en) * 2010-01-11 2011-07-14 Donald Gringer Cutting implements
USD660675S1 (en) 2011-06-09 2012-05-29 Allway Tools, Inc. Twin blade head for a knife
US8201336B2 (en) 2008-05-02 2012-06-19 Olympia Tools International, Inc. Retractable utility knife
US20130239415A1 (en) * 2012-03-13 2013-09-19 Milwaukee Electric Tool Corporation Utility knife
CN103464998A (en) * 2013-09-17 2013-12-25 沈阳飞机工业（集团）有限公司 Machining process of slotting tool
US8776380B1 (en) * 2011-04-25 2014-07-15 Elwood Dean Quimby Utility knife with retractable blade
US20150246451A1 (en) * 2014-02-11 2015-09-03 Glenn Robinson Sliding knife
US20160023364A1 (en) * 2014-07-23 2016-01-28 Daniel J. Raymond Utility knife with blade protector
USD779143S1 (en) 2014-04-25 2017-02-14 Unger Marketing International, Llc Window scraper
USD782271S1 (en) 2015-04-29 2017-03-28 Unger Marketing International, Llc Tool handle
US10076846B2 (en) 2014-08-15 2018-09-18 Stanley Black & Decker, Inc. Sliding blade utility knife
IT201700055773A1 (en) * 2017-05-23 2018-11-23 Lorenzo Patrini Cutter.
US10575703B2 (en) 2015-04-29 2020-03-03 Unger Marketing International, Llc Versatile cleaning devices
US11104014B2 (en) 2018-08-16 2021-08-31 Stanley Black & Decker, Inc. Sliding blade carriage with blade release

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8712318U1 (en) * 1987-09-11 1989-01-12 Klotz, Manfred, 4790 Paderborn, De
US5603162A (en) * 1996-05-31 1997-02-18 Chen; Chun C. Utility knife combination
DE19950903C2 (en) * 1999-10-22 2001-11-08 Walter Suitbert Scraper knife for processing mouthpieces of reed and double reed instruments
DE102010019119B8 (en) * 2010-04-30 2013-01-31 Wilfried Gorski Cuttermesser

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2105663A (en) * 1935-10-03 1938-01-18 Ernest L Laverty Blade haft
US2569080A (en) * 1949-02-24 1951-09-25 Trimble Ernest Knife using a detachable razor blade
US3063147A (en) * 1959-07-01 1962-11-13 Kastar Inc Adjustable tool
US3171201A (en) * 1963-09-03 1965-03-02 Carifi Ralph Razor blade holders
US3577637A (en) * 1968-09-24 1971-05-04 Philip Morris Inc Retractable blade knife
US3708881A (en) * 1971-03-22 1973-01-09 R Bennett Multi position adjustable roofing knife

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2105663A (en) * 1935-10-03 1938-01-18 Ernest L Laverty Blade haft
US2569080A (en) * 1949-02-24 1951-09-25 Trimble Ernest Knife using a detachable razor blade
US3063147A (en) * 1959-07-01 1962-11-13 Kastar Inc Adjustable tool
US3171201A (en) * 1963-09-03 1965-03-02 Carifi Ralph Razor blade holders
US3577637A (en) * 1968-09-24 1971-05-04 Philip Morris Inc Retractable blade knife
US3708881A (en) * 1971-03-22 1973-01-09 R Bennett Multi position adjustable roofing knife

Cited By (73)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4012836A (en) * 1975-05-30 1977-03-22 Safe-T-Cut Incorporated Carton knife
US4005525A (en) * 1975-08-29 1977-02-01 Allway Tools Inc. Retractable cutting implement
US4089112A (en) * 1976-09-30 1978-05-16 Pacific Handy Cutter, Inc. Adjustable blade knife
US4209900A (en) * 1978-01-25 1980-07-01 Stanley Tools Limited Retractable blade knife
US4761882A (en) * 1986-02-18 1988-08-09 Hunt X-Acto, Inc. Utility knife
US4899443A (en) * 1987-10-31 1990-02-13 Martor-Argentax E.H. Beermann Kg Safety knife for cardboard and like materials
US5131149A (en) * 1991-06-19 1992-07-21 Lynn C. Thompson Folding knife
US5250064A (en) * 1992-10-07 1993-10-05 Biological Tissue Reserve, Inc. Shield for surgical scalpel blades
US5285574A (en) * 1992-11-06 1994-02-15 Cosco Industries, Inc. Carton opener
US5386632A (en) * 1993-01-12 1995-02-07 Pacific Handy Cutter, Inc. Ergonomic utility knife/box cutter and method of making
US5613300A (en) * 1993-01-12 1997-03-25 Pacific Handy Cutter Ergonomic utility knife/box cutter and method of making
US5344424A (en) * 1993-03-12 1994-09-06 Roberts Philip L Selectively retractable, disposable surgical knife
US5475925A (en) * 1994-03-21 1995-12-19 Newman; Philip H. Three-piece retractable-bladed knife
US5649364A (en) * 1995-01-25 1997-07-22 Ilanlou; Jamshid Disposable multi-blade straight razor
US5779647A (en) * 1995-06-07 1998-07-14 Chau; Sonny Automated biopsy instruments
US6626850B1 (en) 1995-06-07 2003-09-30 Allegiance Corporation Automated biopsy instruments
US6605099B1 (en) 1996-02-07 2003-08-12 Johann F. Hellenkamp Automatic surgical device and control assembly for cutting a cornea
US20030144678A1 (en) * 1996-02-07 2003-07-31 Hellenkamp Johann F. Automatic surgical device and control assembly for cutting a cornea
US7166117B2 (en) 1996-02-07 2007-01-23 Hellenkamp Johann F Automatic surgical device and control assembly for cutting a cornea
US20070244496A1 (en) * 1996-02-07 2007-10-18 Hellenkamp Johann F Automatic surgical device and control assembly for cutting a cornea
US5813121A (en) * 1996-06-17 1998-09-29 Allway Tools, Inc. Automatically retractable utility knife
US6438849B1 (en) 1998-10-06 2002-08-27 Safety Razor Company Automatic spring retractable utility knife
US6263577B1 (en) 1998-10-06 2001-07-24 American Safety Razor Automatic spring retractable utility knife
US6550144B1 (en) * 1999-04-09 2003-04-22 Harald Berns Hollow-handle razor knife with blade slide
USD444368S1 (en) 1999-05-07 2001-07-03 American Safety Razor Retractable utility knife
US6192589B1 (en) 1999-06-25 2001-02-27 The Stanley Works Utility knife
USD430466S (en) * 1999-10-11 2000-09-05 Schmidt G Gerry Utility knife blade guard
US6314646B1 (en) 1999-12-15 2001-11-13 Pacific Handy Cutter, Inc. Utility knife
US6589258B2 (en) * 2000-05-10 2003-07-08 Giuseppe Pilo Disposable surgical safety scalpel
US6513246B2 (en) 2000-11-14 2003-02-04 Great Neck Saw Manufacturers, Inc. Utility knife
US6374497B1 (en) * 2001-07-09 2002-04-23 Taiwan San Tyau Co., Ltd. Utility cutter
US20040139614A1 (en) * 2003-01-17 2004-07-22 Tebo Glenn J. Utility knife
US6848185B2 (en) * 2003-01-17 2005-02-01 Glenn J. Tebo Utility knife
US20040236358A1 (en) * 2003-04-07 2004-11-25 Barrile-Josephson Craig A. Bar-link drive system for a microkeratome
US7780689B2 (en) 2003-04-07 2010-08-24 Technolas Perfect Vision Gmbh Bar-link drive system for a microkeratome
US7131204B2 (en) 2003-11-10 2006-11-07 Irwin Industrial Tool Company Utility knife with actuator for moving blade carrier and for releasing blade therefrom, and related method
US20050188541A1 (en) * 2003-11-10 2005-09-01 Brown Donald A. Utility knife with actuator for moving blade carrier and for releasing blade therefrom, and related method
US20060253996A1 (en) * 2005-05-12 2006-11-16 Rosalie Bianco Hammer tacker with cutter
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
US8549755B2 (en) 2005-08-02 2013-10-08 Stanley Black & Decker, Inc. Compact utility knife
US20110162212A1 (en) * 2005-08-02 2011-07-07 Stanley Black & Decker, Inc. Compact utility knife
US20080282546A2 (en) * 2005-08-02 2008-11-20 The Stanley Works Compact utility knife
US7520059B2 (en) 2005-08-02 2009-04-21 The Stanley Works Compact utility knife
US20090193665A1 (en) * 2005-08-02 2009-08-06 The Stanley Works Compact utility knife
US7930829B2 (en) 2005-08-02 2011-04-26 Stanley Black & Decker, Inc. Compact utility knife
US20070028455A1 (en) * 2005-08-02 2007-02-08 The Stanley Works Compact utility knife
US7389587B2 (en) 2005-09-08 2008-06-24 Helen Of Troy Limited Utility knife
US20070050988A1 (en) * 2005-09-08 2007-03-08 Helen Of Troy Limited Utility knife
US7784189B2 (en) 2005-10-13 2010-08-31 Martor Kg Knife
US20080189956A1 (en) * 2005-10-13 2008-08-14 Gudula Polei 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
US20100043235A1 (en) * 2008-08-21 2010-02-25 Wen Hao Utility knife with extended travel carriage
US8695221B2 (en) 2008-08-21 2014-04-15 Wen Hao Utility knife with extended travel carriage
US20100223793A1 (en) * 2009-03-04 2010-09-09 The Stanley Works Utility knife
US20110167647A1 (en) * 2010-01-11 2011-07-14 Donald Gringer Cutting implements
US8938883B2 (en) 2010-01-11 2015-01-27 Allway Tools, Inc. Cutting implements
US8776380B1 (en) * 2011-04-25 2014-07-15 Elwood Dean Quimby Utility knife with retractable blade
USD660675S1 (en) 2011-06-09 2012-05-29 Allway Tools, Inc. Twin blade head for a knife
US20130239415A1 (en) * 2012-03-13 2013-09-19 Milwaukee Electric Tool Corporation Utility knife
CN103464998A (en) * 2013-09-17 2013-12-25 沈阳飞机工业（集团）有限公司 Machining process of slotting tool
CN103464998B (en) * 2013-09-17 2016-06-01 沈阳飞机工业（集团）有限公司 The complete processing of a kind of slotting tool
US20150246451A1 (en) * 2014-02-11 2015-09-03 Glenn Robinson Sliding knife
USD779143S1 (en) 2014-04-25 2017-02-14 Unger Marketing International, Llc Window scraper
US20160023364A1 (en) * 2014-07-23 2016-01-28 Daniel J. Raymond Utility knife with blade protector
US9827686B2 (en) * 2014-07-23 2017-11-28 Dan-O-Tool, Llc Utility knife with blade protector
US10076846B2 (en) 2014-08-15 2018-09-18 Stanley Black & Decker, Inc. Sliding blade utility knife
USD782271S1 (en) 2015-04-29 2017-03-28 Unger Marketing International, Llc Tool handle
USD829526S1 (en) 2015-04-29 2018-10-02 Unger Marketing International, Llc Tool handle
US10575703B2 (en) 2015-04-29 2020-03-03 Unger Marketing International, Llc Versatile cleaning devices
IT201700055773A1 (en) * 2017-05-23 2018-11-23 Lorenzo Patrini Cutter.
US11104014B2 (en) 2018-08-16 2021-08-31 Stanley Black & Decker, Inc. Sliding blade carriage with blade release

Also Published As

Publication number Publication date
GB1449374A (en) 1976-09-15
DE2421174B2 (en) 1978-01-26
DE2421174C3 (en) 1978-09-21
DE2421174A1 (en) 1974-11-28
NL7406298A (en) 1974-11-13
CH547686A (en) 1974-04-11

Similar Documents

Publication Publication Date Title
US3879847A (en) Cutter with forwardly and rearwardly displaceable blade
US4805304A (en) Utility knife having a sliding blade holder
US3577637A (en) Retractable blade knife
US4835865A (en) Hollow-handle utility knife replaceable blade
US3448518A (en) Knife
US3872591A (en) Knife handle
US3488843A (en) Hand cutting tool with means to support a plurality of blades and means to hold a single blade in a cutting position
US4109380A (en) Cutting tool and blade holder for replaceable blades
US4005525A (en) Retractable cutting implement
US4660287A (en) Knife with replaceable blade
EP0178040B1 (en) Retractable knife handle
US3765089A (en) Knife with adjustable blade
US3906627A (en) Spinners knife
US3171201A (en) Razor blade holders
US2862296A (en) Knife
US3889368A (en) Knife for cutting in sliding contact with ruler edge
US4196515A (en) Cutter knife
US4599919A (en) Sharpening device
EP0048077B1 (en) Refillable blade type knife
US3478427A (en) Handtool for cutting sheet material
US3724010A (en) Cutting tool
US3406447A (en) Carton cutter
US5287625A (en) Sandpaper cutting guide
KR200495797Y1 (en) Multi fuction cutter wiht replaceable pressure tool
US20040000055A1 (en) Retractable knife having blade cartridge