US3577637A - Retractable blade knife - Google Patents

Retractable blade knife Download PDF

Info

Publication number
US3577637A
US3577637A US3577637DA US3577637A US 3577637 A US3577637 A US 3577637A US 3577637D A US3577637D A US 3577637DA US 3577637 A US3577637 A US 3577637A
Authority
US
United States
Prior art keywords
blade
carrier
handle
slot
tab
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
Inventor
Paul A Braginetz
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.)
Philip Morris USA Inc
Original Assignee
Philip Morris USA Inc
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 Philip Morris USA Inc filed Critical Philip Morris USA Inc
Priority to US76190368A priority Critical
Application granted granted Critical
Publication of US3577637A publication Critical patent/US3577637A/en
Assigned to BANKERS TRUST COMPANY A NEW YORK BANKING CORPORATION reassignment BANKERS TRUST COMPANY A NEW YORK BANKING CORPORATION SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: AMERICAN SAFETY RAZOR COMPANY
Anticipated expiration legal-status Critical
Assigned to AMERICAN SAFETY RAZOR COMPANY reassignment AMERICAN SAFETY RAZOR COMPANY RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). RECORDED AT REEL 4324, FRAMES 601 AND REEL 4888, FRAMES 485. Assignors: BANKERS TRUST COMPANY, AS AGENT
Assigned to FIRST NATIONAL BANK OF BOSTON, THE reassignment FIRST NATIONAL BANK OF BOSTON, THE SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: AMERICAN SAFETY RAZOR COMPANY, A DE CORP.
Assigned to AMERICAN SAFETY RAZOR COMPANY reassignment AMERICAN SAFETY RAZOR COMPANY TERMINATION OF SECURITY INTEREST IN PATENTS Assignors: FIRST NATIONAL BANK OF BOSTON, THE, AS AGENT
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26BHAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B5/00Hand knives with one or more detachable blades
    • B26B5/001Hand knives with one or more detachable blades with blades being slid out of handle immediately prior to use

Abstract

An industrial blade holder combination with the blade being mounted on a carrier and selectively movable to retracted and operative positions including a position in which the blade is readily removable for replacement, the combination including a blade magazine for replacement blades, the magazine being replaceably mounted in the handle and arranged to enable individual blades to be dispensed therefrom for insertion in the handle while the magazine remains in the handle.

Description

United States Patent Paul A. Braginetz Augusta County, Va.

Sept. 24, 1968 Philip Morris Incorporated New York, NY.

RETRACTABLE BLADE KNIFE 6 Claims, 14 Drawing Figs.

References Cited UNITED STATES PATENTS 1/1959 Ortner 2,948,961 8/1960 Ortner 30/162 3,025,598 3/1962 Nissen 30/162 3,316,635 5/1967 Merrow 30/ l 62 Primary ExaminerLester M. Swingle Assistant Examiner-J. C. Peters Attorney-Watson, Leavenworth & Kelton ABSTRACT: An industrial blade holder combination with the blade being mounted on a carrier and selectively movable. to

' retracted and operative positions including a position in which the blade is readily removable for replacement, the combination including a blade magazine for replacement blades, the magazine being replaceably mounted in the handle and arranged to enable individual blades to be dispensed therefrom for insertion in the handle while the magazine remains in the handle.

PATENTEU HAY 415m SHEET 3 [IF 3 due 3 l 6 A I F 1f RE'I'RAC'IABLE'BLADE KNIFE. BACKGROUND AND FIELD OF THE INVENTION The invention is concerned with industrial knives of the type comprising a handle adapted to hold a blade replaceable by a new blade when, through use or other Conditions, the blade becomes worn or damaged. Blades of this general character have been provided in which the blade is selectively movable to an operative position or to a retracted position'in which the cutting edge is protected against damage and against injury to persons.

Many'varied designs have been heretofore employed or proposed of the general character concerned. Representative US. Pat. comprise Robinson, .lr., No. 3,107,426 and Gringer No. 3,l92,624.' In the forms as disclosed in these patents, new blades are contained in the handle, but substitution of a new blade in the'operative position requires removal of means holding the handle halves together to enable release of the used blade and to obtain-access to the new blade in the handle for substitution in the operative position.

The US. Pat. to Nissen, No. 3,025,598 shows an industrial knife in which the blade is described as removable without taking the handle apart, but in that case the blade is of special shape, having a tail portion with an enlarged inner end designed to cooperate with specially shaped complemental elements in the handle to lock the blade therein except when in a certain position. The blade in that case accordingly has a special shape'and is not reversible as distinguished from the blade in the present invention, and as disclosed in the two previously mentioned patents, which has s symmetrical trapezoidal shape and is reversible in the holder when the cutting edge portion at the exposed area becomes worn or damaged.

THE PRESENTINVENTION The handle and blade combination of the present invention obviates the disadvantages, particularly noted above, and

others as well. In general, it embodies in the handle a blade carrier for holding and shifting the blade to operative and retracted positions constructed and arranged in conjunction until the contents thereof are exhausted.

Other features and physical elements and advantages will be made apparent by consideration of a representative embodir'nent of the invention. Accordingly, in connection with the description, reference should be had to the accompanying drawings in which:

FIG. 1 is a top plan view of the complete handle arranged on edge;

FIG. 2 is a plan view of the handle with the tophalf of the casing removed and showing the magazine embodied in the handle;

FIG. 3 is a fragmentary view of the left end of FIG. 2 showing a blade mounted in the blade carrier in retracted position;

FIG. 4 is a vertical section on the plane 4-4 of FIG. 1;

FIG. 5 is a view in perspective of the blade carrier;

FIG. 6 is a top plan view of another form of the handle and magazine combination with a modified blade carrier and means for removal of the blade;

FIG. 7 is a plan view of the handle and magazine combination in FIG. 6 with the top half of the handle removed and showing the magazine located in the handle;

FIG. 8 is a vertical section on the plane 8-8 of FIG. 6;

FIG. 9. is a vertical section similar to FIG. 8 but with the 7 blade carrier moved outwardly to the blade release position;

' tion's' broken away to show, in part, at the right-hand section the blade withdrawal tray and portions of the lower half of the magazine;

FIG. 11 is abottom plan view of the magazine, that is reversed from the view of FIG. 10;

FIG. 12 is a vertical section taken on the plane 12-12 of FIG. 10;

FIG. 13 is a vertical section taken on the plane 13-13 of FIG. 10; and i FIG. 14 is a vertical section taken on the plane 14-14 of FIG. 10.

Referring to the embodiment of the invention shown in FIGS. 1 to 5, the knife 10' includes two complemental halves 11 and 12 held together by suitable means su'ch as the screw 13 extending through the casing half 12 and threaded into the casing half 11. The handle halves may be made of lightweight aluminum or suitable plastic. Slideably mounted in the handle is the blade carrier 15 shown as an individual element in perspective in FIG. 5. The carrier includes a main plate section 16 having a lower flange portion 17 adapted to receive the cutting edge 18 of the blade 19 and the section 16 having a rear lug 20 adapted to engage and locate the blade as indicated in FIG. 3. The carrier may be made for the most part at least as a stamping of sheet steel or other spring metal material.

The blade may vary in shape and character but in the present instance, it is shown of conventional form, being symmetrical with the shapein general form of a trapezoid. The rear edge (upper in FIG. 3) of the blade is provided with a pair of semicircular notches 21 in the rear one of which is engaged a lug 22 bent forwardly as shown in FIGS. 2, 3 and 5 from the upper portion of the plate section 16. The notches 21 are arranged symmetrically with respect to a vertical centerline, the blade being reversible and the lug 22 in each case will engage in the rear notch 21.

As shown in FIG. 4, the carrier and the blade thereon are adapted to move longitudinally of the handle between the guide ribs 30 and 31 of the casing half 12 and opposed ribs or lands 32 and 33 of the casing half 11. Extending to the rear of the carrier 15 is a flexible leaf spring portion 34 carrying a manually engageable tab or fingerpiece 35 connected to the spring portion 34 by rectangular support 36. The leaf portion or finger 34 also carries a pair of upstanding .latching lugs 37, the function of which will be described shortly. The opposed handle halves l1 and 12 have cutaway portions 40 and 41 respectively extending longitudinally in the top edge of the handle to form opposed recesses into which the fingerpiece 35 may be depressed to release the latching means. The two opposed handle halves are also cut away to form a longitudinally extending slot 45 along which the rectangular portion 36 of the fingerpiece 35 may move. Below the guideway 45 each of the handle halves is provided with a series of downwardly facing notches 46, 47, 48 and 49 into which the lugs 37 on the carrier 15 are adapted to engage, the spring finger 34 being biased upwardly to cause such. engagement when the carrier is in an appropriate position for a particular pair of the notches and the fingerpiece 35 is released. As shown in FIG. 3 the lugs 37 are engaged in the rearmost notch 46 and the blade 19 is in a fully retracted position. Upon depressing the fingerpiece 35 the blade carrier may be selectively moved forwardly into the positions determined by the notches 47 and 48 where the blade is, what may be termed, partially exposed, and upon further advance to the notch 49, the blade is fully exposed for cutting as shown in' phantom in FIG. 2.

As an important feature of the knife, means are provided whereby the blade may be entirely removed from the handle in the furthermost forward position of the carrier and blade, comprising that shown in FIG. 2. The carrier 15 includes an upstanding plate portion 52 shaped as shown in FIG. 5 which has a finger tab 53 at the top and a laterally extending lug 22, heretofore described, stamped out from the sheet metal. The

plate portion 52 is mounted on an extension of a section 54 of the blade carrier made elastic as to lateral position by reason of the cuts 55 and 56 defining the sheet metal portion 54. The handle half 11 is cut away on the surface facing the other handle half to provide a longitudinal slot 57, which is a continuation of the main slot 45, but of narrower dimension sufficient only to receive the thin plate portion 52 of the blade carrier. The slot 57' is enlarged laterally at the outer end to form a rectangular notch 58 adapted to permit the lateral movement to the left of the plate portion 52 when the carrier and blade are in their extreme forward position. Such deflection of the plate 52 releases the lug 22 from the notch 21 of the blade 19 permitting the blade to be freely withdrawn. Similarly, a new blade may be inserted by lateral deflection of the plate 52 and upon release after the blade is in position, the lug 22 engages in the notch 21 of the new blade.

As indicated particularly in FIG. 2, the handle has a cavity in which is located a supply of new blades. The blades are con tained in a magazine M insertable at the bottom edge of the handle as arranged in FIG. 2. Referring to FIGS. to 14, the magazine comprises three major parts consisting of an upper casing half 60 as the magazine appears in FIG. 10, a lower casing half 61, comprising the top part in the reversed position of FIG. 11 and a movable tray portion 62 shown in part in plan in FIG. 10 and in cross section in FIGS. 12, 13 and 14. The magazine parts are preferably composed of a suitable molded plastic material such as an acetal resin available commercially under the tradenames Delrin" or Celcon." Mounted within the magazine casing, as shown particularly in FIG. 12, is a stack of blades B, the blades being omitted in the showing of FIG. 10. The bottom plate or casing half 61 has a pair of spaced abutments 63 and 64 upon which the stack. of blades resets when the casing half 60 is uppermost as in FIG. 10. The top half of the casing shown, particularly in the left portion of FIG. 10, includes a pair of elastic fingers 70 and 71 which may be formed integrally with the casing half 60 through the provi sions of cuts 72 and 73. The fingers 70 and 71 are biased inwardly so as to engage the stack of blades B and urge them into contact with the supporting abutments 63 and 64 regardless of the position of the magazine unit M.

Movably mounted between the two casing halves 60 and 61 is the blade tray 62 previously mentioned which has an outer flange portion 80 adjacent to which the cutting edge of the bottom blade is normally located. The tray may be variously mounted for outward and inward movement but in the present case, it is conveniently mounted for pivotal movement on the pin 81 which may be cast integral with the plate or casing half 61, the pin extending through the casing half 60. A further pin 82 joins the opposite ends of the casing halves. The pins may be secured by any suitable means and correspondingly, the casing halves secured together. Since the materials for the magazine are preferably plastic material, the parts may be ultrasonically sealed together.

The tray has a trapezoidal section 62a adapted when the tray is in its inward position to be located between the two abutments 63 and 64 of the lower half of the casing 61 and to be underneath the lowermost blade, the blade stack overlapping onto the abutments 63 and 64. The tray 62 also includes a tab 62b adapted to be received in a notch 83 in the casing plate 61 and to extend beyond the plate as shown in FIGS. 12, 13 and 14. Preferably the tray 62 has a detent element to releasably hold it in closed position as indicated at 84.

The plate 61 has a pair of vertical ribs 86 adapted to engage in the notches 21 at the rear edge of the blades and serve as a locating and guide means for the blades as they progressively move toward the abutments 63, 64 when the successive blades are removed. As may be seen in FIG. 14 the bottom end of the ribs 86 are tapered upwardly and outwardly for a purpose to be now described. As a cooperative feature, the tray 62 is provided at the rear edge with a small rectangular extension 87 (FIGS. 2 and 14) on which are located two boss portions spaced and located to engage under the bottom ends of the ribs 86. The inner ends of the boss portions are beveled off as indicated in 88 in FIG. 14 but the forward edges have square shoulders 89. Accordingly, as the tray 62 is swung inwardly, the boss portions 87 slide underneath the bottom ends of the ribs 86 and in this position, the forward shoulders of the boss portions engage against the blade edge in the notches 21 and upon swinging the tray outwardly, a blade is carried thereon to an exposed position as sown in FIG. 2 where the blade may be picked up and inserted in the operative end of the handle as heretofore described.

Means for releasably mounting the magazine in the handle are embodied comprising in the present form of the invention a pair of elastic fingers 90, integral with the top plate 60, the fingers each having an enlargement or knob 91 adapted when the magazine is fully inserted to engage in complemental notches in the cavity of the handle. The outer edge face of the magazine preferably coincides with the edge surface of the handle so as to form a smooth article, the handle half having a smooth notch 93 thereon to receive the tab 62a of the dispensing tray. For ready removal of the magazine, the top of the handle, as viewed in FIG. 2, has a smooth depression or cutout portion 95 whereby finger pressure may be exerted directly on the magazine to push it outwardly, releasing the elastic finger 91 from engagement in the complemental notches in the handle.

In the modified form shown in FIGS. 6 to 9 the overall arrangement is generally the same, although in this case, the magazine is insertable at the same edge of the handle as the element for adjusting the blade carrier is located, and the specific means for adjusting and releasing the blade differ in details from that of FIGS. 1 to 5. In this modified form, the blade carrier 98 has only the single fingerpiece tab 100 which corresponds in general to the fingerpiece 35 of FIG. 5. For increased stability the carrier preferably is provided with a rear extension 9861 offset to one side by a bend at approximately the point 98b, the extension being movable in appropriate guides in the casing half 11. The offset permits the extension 98a to pass to one side of the magazine M. The tab 100 is mounted on an elastic spring finger 101 which has lugs 102 engageable in notches 46, 47, 48 and 49 as in the form of FIGS. 1 to S. For removal of the blade from the carrier, however,'the carrier has one additional forward position beyond the locking notch 49 and, if desired, the carrier may be advanced to where the locking lug 103 is carried beyond the outer end of the handle. For this purpose, when the stub support 100a for tab 100 reaches the end of the slot 104 (corresponding to the slot 45 shown in FIG. 1) it engages against a shoulder 105 comprising a temporary stop. However, an offset notch is provided in the form of a slot portion 106 comprising an extension of main slot 104 offset to the left in FIGS. 8 and 9. Therefore, by moving the fingerpiece 100 to the left it may enter the slot portion 106. The carrier may then be further advanced and the blade carried with it by reason of the lug 107 engaging the rear edge of the blade. FIG. 8 shows the parts just prior to the support 100a for the finger tab 100 entering the slot portion 106, and FIG. 9 shows the parts after the support has entered slot 106.

In this latter position, the lug 103 has moved out of the blade notch 21 and the blade may be freely withdrawn and reversed as to position or a new blade inserted and pushed inwardly with the carrier initially to the outermost locked positron. 1

Various further modifications and changes may be made in I the handle and operating parts and in the magazine comprising different embodiments of the principles of the invention. Accordingly, it is intended that all matter contained herein shall be interpreted as illustrative and not in a limiting sense.

Iclaim:

1. In a knife having a handle, a blade carrier mounted for longitudinally slidable movement in a longitudinal passage therein to position selectively the blade in exposed operable or retracted protected positions, a first manually engageable tab connected to said carrier for effecting longitudinal movement thereof, and a second manuaily engageable tab having an elastic connection to said carrier with a locking lug engageable in an opening inthe blade, said tab being moveable in an advanced bladeexposed position to release said locking lug "from the blade opening thereby to permit removal of the blade corresponding junction of the two halves and said first tab has an elastic connection to said carrier with a lug selectively positionable in notches at the under edge of said slot.

4. A'knife in accordance with claim 2 in which said slot has an offset portion corresponding to said advanced position thereby to receive and permit lateral movement of said elastic support and correspondingly release the blade at said ad vanced position.

5. In a knife having a handle, a blade carrier mounted for longitudinally slidable' movement in a longitudinal passage therein to position selectively the blade in exposed operable or retracted positions, said handle having a longitudinal slot along one edge, a manually engageable tab extending outwardly through said slot having an elastic connection to said carrier, a locking lug mounted on said blade carrier engageable in an opening in said blade, said slot comprising a track with an offset portion at its outer end providing a shoulder limiting advance of the carrier and blade to a locked cutting position, said elastic connection permitting lateral movement thereof into the slot offset portion and further advance of the carrier for removal of the blade.

6. A knife in accordance with claim 5 in which said tab has a carrier positioning lug selectively engageable in notches at the inner edge of the slot releasable by inward depression of the tab transverse to said lateral movement of the elastic connection and tab.

Claims (6)

1. In a knife having a handle, a blade carrier mounted for longitudinally slidable movement in a longitudinal passage therein to position selectively the blade in exposed operable or retracted protected positions, a first manually engageable tab connected to said carrier for effecting longitudinal movement thereof, and a second manually engageable tab having an elastic connection to said carrier with a locking lug engageable in an opening in the blade, said tab being moveable in an advanced blade exposed position to release said locking lug from the blade opening thereby to permit removal of the blade from the handle.
2. A knife in accordance with claim 1 in which said first and second tabs are moveable along a common slot in the handle.
3. A knife in accordance with claim 2 in which said handle is comprised of opposed complemental halves and said slot along which the tabs are moveable is at an upper edge at the corresponding junction of the two halves and said first tab has an elastic connection to said carrier with a lug selectively positionable in notches at the under edge of said slot.
4. A knife in accordance with claim 2 in which said slot has an offset portion corresponding to said advanced position thereby to receive and permit lateral movement of said elastic support and correspondingly release the blade at said advanced position.
5. In a knife having a handle, a blade carrier mounted for longitudinally slidable movement in a longitudinal passage therein to position selectively the blade in exposed operable or retracted positions, said handle having a longitudinal slot along one edge, a manually engageable tab extending outwardly through said slot having an elastic connection to said carrier, a locking lug mounted on said blade carrier engageable in an opening in said blade, said slot comprising a track with an offset portion at its outer end providing a shoulder limiting advance of the carrier and blade to a locked cutting position, said elastic connection permitting lateral movement thereof into the slot offset portion and further advance of the carrier for removal of the blade.
6. A knife in accordance with claim 5 in which said tab has a carrier positioning lug selectively engageable in notches at the inner edge of the slot releasable by inward depression of the tab transverse to said lateral movement of the elastic connection and tab.
US3577637D 1968-09-24 1968-09-24 Retractable blade knife Expired - Lifetime US3577637A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US76190368A true 1968-09-24 1968-09-24

Publications (1)

Publication Number Publication Date
US3577637A true US3577637A (en) 1971-05-04

Family

ID=25063561

Family Applications (1)

Application Number Title Priority Date Filing Date
US3577637D Expired - Lifetime US3577637A (en) 1968-09-24 1968-09-24 Retractable blade knife

Country Status (4)

Country Link
US (1) US3577637A (en)
JP (1) JPS5017720B1 (en)
DE (1) DE1948166B2 (en)
GB (1) GB1241913A (en)

Cited By (89)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3708881A (en) * 1971-03-22 1973-01-09 R Bennett Multi position adjustable roofing knife
US3857176A (en) * 1972-12-11 1974-12-31 Stanley Mabo Knife with a retractable blade
US3879847A (en) * 1973-05-11 1975-04-29 Smart Ag Cutter with forwardly and rearwardly displaceable blade
US3927473A (en) * 1974-04-18 1975-12-23 Philip Morris Inc Replaceable blade knife
US4517741A (en) * 1982-05-19 1985-05-21 Castelluzzo James M Knife with plural replaceable blade storage and means for single blade extension
US4586256A (en) * 1985-01-07 1986-05-06 The Stanley Works Knife handle
US4761882A (en) * 1986-02-18 1988-08-09 Hunt X-Acto, Inc. Utility knife
AU595914B2 (en) * 1986-08-08 1990-04-12 James Castelluzzo Utility knife with slide cover
US4922610A (en) * 1987-03-10 1990-05-08 Szabo Stephan L Blade holder having a magazine
EP0271223B1 (en) * 1986-11-12 1990-09-26 McPherson's Limited Retractable blade knife
US5386632A (en) * 1993-01-12 1995-02-07 Pacific Handy Cutter, Inc. Ergonomic utility knife/box cutter and method of making
US5426855A (en) * 1992-11-30 1995-06-27 Psi, Inc. Safety utility knife
US5481804A (en) * 1994-10-12 1996-01-09 Platts; David Retractable-bladed knife
US5495670A (en) * 1995-05-04 1996-03-05 Fiskars Inc. Utility knife
US5509205A (en) * 1995-01-30 1996-04-23 Millers Falls Tool Company Utility knife having blade retention feature
US5603162A (en) * 1996-05-31 1997-02-18 Chen; Chun C. Utility knife combination
WO1998055273A1 (en) 1997-06-04 1998-12-10 Violex Bic S.A. A utility knife system
US5960544A (en) * 1996-04-03 1999-10-05 Beyers; Greg L. Double-ended dual mechanism retractable blade utility knife
US5960545A (en) * 1995-10-26 1999-10-05 The Nack Company Limited Utility knife with rotary blade magazine
US6000136A (en) * 1998-04-27 1999-12-14 The Stanley Works Knife handle
EP0977532A2 (en) 1997-04-25 2000-02-09 Johann F. Hellenkamp Improved automatic surgical device for cutting a cornea and a cutting blade assembly and control assembly therefor
US6044562A (en) * 1998-07-27 2000-04-04 Dillenbeck; Edward J. Safety interlocking blade release mechanism for hand held cutting tools
US6058607A (en) * 1996-06-17 2000-05-09 Allway Tools, Inc. Utility knife with snap-off carrier and dual control
USD430466S (en) * 1999-10-11 2000-09-05 Schmidt G Gerry Utility knife blade guard
USD434960S (en) * 1999-05-07 2000-12-12 General Housewares Corporation Utility knife
EP1077117A3 (en) * 1999-08-14 2001-04-11 Olympia Group, Inc. Adjustable safety utility knife
US6233830B1 (en) 1999-05-07 2001-05-22 General Housewares Corporation Utility knife handle
US6249975B1 (en) * 1999-12-20 2001-06-26 Hsing Tai Lin Blade support device for a knife
US6314646B1 (en) 1999-12-15 2001-11-13 Pacific Handy Cutter, Inc. Utility knife
US6324763B1 (en) * 2000-04-07 2001-12-04 Tai-Wang Lee Structure art design knife
US6415514B1 (en) * 2000-08-03 2002-07-09 Tseng Min Chun Artistic knife with replaceable blade magazine
US6446340B1 (en) 2000-11-14 2002-09-10 Great Neck Saw Manufacturers, Inc. Utility knife
US6513246B2 (en) 2000-11-14 2003-02-04 Great Neck Saw Manufacturers, Inc. Utility knife
US6553674B1 (en) 2001-12-19 2003-04-29 Awi Acquisition Company Utility knife that protrudes a blade from a stored stack of blades
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
US6678958B1 (en) * 2002-05-01 2004-01-20 Awi Acquisition Company Utility knife with blade storage
US20040040159A1 (en) * 2001-07-23 2004-03-04 Gregory Fossella Utility knife
US20040123468A1 (en) * 2002-09-13 2004-07-01 Timson Todd A. Replaceable-blade knife
US20040236358A1 (en) * 2003-04-07 2004-11-25 Barrile-Josephson Craig A. Bar-link drive system for a microkeratome
US20040237312A1 (en) * 2003-05-22 2004-12-02 Hector Hernandez Knife with trigger actuator for retractable blade
WO2004106012A1 (en) * 2003-05-22 2004-12-09 Alltrade Tools, Llc. Knife with trigger actuator for retractable blade
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
US20050193566A1 (en) * 2003-11-10 2005-09-08 Brown Donald A. Utility knife
US20060080842A1 (en) * 2004-10-15 2006-04-20 Pacific Handy Cutter, Inc. Safety cutter with triple locking slider
US20060157076A1 (en) * 2005-01-19 2006-07-20 W.Kretzer Kg Pedicure device
US7107688B1 (en) 2005-04-18 2006-09-19 Cooper Brands, Inc. Releasable blade locking mechanism for utility knife
US7155829B1 (en) * 2005-10-04 2007-01-02 Fu-Cheng Sun Art design knife
US20070227012A1 (en) * 2006-04-04 2007-10-04 Constantine Richard S Cutting implement with cartridge
US20070240314A1 (en) * 2006-02-28 2007-10-18 Ireland William A Knife
US20080086895A1 (en) * 2006-10-17 2008-04-17 Thomas Jerald Parks Utility knife with integrated hole punch
US20080172883A1 (en) * 2007-01-23 2008-07-24 Accurate Concepts, Inc. Measuring, scoring and cutting tool
US20080256808A1 (en) * 2004-09-23 2008-10-23 Irwin Industrial Tool Company Slide assembly device for a snap-off blade utility knife
US20080289191A1 (en) * 2007-05-21 2008-11-27 Leblanc Norman Folding utility knife and related method
US20090271990A1 (en) * 2008-05-02 2009-11-05 Huang Yuan De Retractable utility knife
US20090277016A1 (en) * 2008-05-07 2009-11-12 Yuewei Wu Utility knife with an auto-retractable blade
EP2153948A2 (en) 2008-08-15 2010-02-17 The Stanley Works Knife
EP2153947A2 (en) 2008-08-15 2010-02-17 The Stanley Works Utility knife
EP2153949A2 (en) 2008-08-15 2010-02-17 The Stanley Works Utility knife
US20100037465A1 (en) * 2008-08-15 2010-02-18 The Stanley Works Utility knife with blade storage system
EP2189257A1 (en) 2008-11-21 2010-05-26 The Stanley Works A utility knife
US20100154224A1 (en) * 2008-12-22 2010-06-24 Meridian International Co., Ltd. Novel sliding cutting tool
US20100180449A1 (en) * 2009-01-16 2010-07-22 Van Deursen Gary E Auto feed utility knife
USD624386S1 (en) 2009-02-12 2010-09-28 American Safety Razor Retractable blade knife
US20110167647A1 (en) * 2010-01-11 2011-07-14 Donald Gringer Cutting implements
CN101704250B (en) * 2009-10-15 2011-12-28 杭州巨星科技股份有限公司 Manual knife convenient for blade replacement
US20120023754A1 (en) * 2010-07-28 2012-02-02 Chih-Wei Chang Multi-function cutter
USD660675S1 (en) 2011-06-09 2012-05-29 Allway Tools, Inc. Twin blade head for a knife
US20120272529A1 (en) * 2011-04-29 2012-11-01 Richard Steven Constantine Knife Having a Reversible Carriage
US20120279071A1 (en) * 2009-02-26 2012-11-08 Joe Garavaglia Utility Knife
US8695221B2 (en) 2008-08-21 2014-04-15 Wen Hao Utility knife with extended travel carriage
US20140123501A1 (en) * 2007-05-21 2014-05-08 Pacific Handy Cutter, Inc. Pocket Safety Cutter
US8776380B1 (en) * 2011-04-25 2014-07-15 Elwood Dean Quimby Utility knife with retractable blade
CN104369199A (en) * 2014-09-28 2015-02-25 顺德工业(江苏)有限公司 Blade-shake preventing structure of cutter knife regulator
US20150246451A1 (en) * 2014-02-11 2015-09-03 Glenn Robinson Sliding knife
US9168648B2 (en) 2012-12-14 2015-10-27 Stanley Black & Decker, Inc. Vibration dampened hammer
US20160031097A1 (en) * 2014-08-01 2016-02-04 Sdi Corporation Cutter assembly having a limiting structure
US20160046026A1 (en) * 2014-08-15 2016-02-18 Stanley Black & Decker, Inc. Sliding blade utility knife
USD749929S1 (en) 2014-12-29 2016-02-23 Js Products, Inc. Utility knife handle
USD749928S1 (en) 2014-12-29 2016-02-23 Js Products, Inc. Utility knife handle
EP2868447A4 (en) * 2012-06-28 2016-07-27 Hangzhou Great Star Tools Co Ltd Utility knife
US9550302B2 (en) 2012-12-21 2017-01-24 Stanley Black & Decker, Inc. Utility knife with blade wiper
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
US9676106B2 (en) 2008-04-29 2017-06-13 Pacific Handy Cutter, Inc. Safety cutter with guard-actuated blade deployment
US9840013B2 (en) 2008-04-29 2017-12-12 Pacific Handy Cutter, Inc. Safety cutter with blade change/storage mechanism
US10575703B2 (en) 2015-04-29 2020-03-03 Unger Marketing International, Llc Versatile cleaning devices
US10710254B2 (en) * 2012-12-05 2020-07-14 PenBlade, Inc. Safety cutting device
US10800052B1 (en) 2019-06-13 2020-10-13 Repetto Llc Utility knife, blade, and cartridge

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4292738A (en) * 1979-01-20 1981-10-06 Kai Cutlery Center Co., Ltd. Knife
US4242795A (en) * 1979-02-02 1981-01-06 The Stanley Works Knife handle
US4663845A (en) * 1986-03-05 1987-05-12 Stanley Tools Utility knife

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2870537A (en) * 1958-03-14 1959-01-27 Ortner Samuel Pocket safety knife
US2948961A (en) * 1959-07-21 1960-08-16 Ortner Samuel Push button knife
US3025598A (en) * 1958-10-13 1962-03-20 Gillette Co Knife
US3316635A (en) * 1964-05-06 1967-05-02 Stanley Works Scoring knife

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4033440Y1 (en) * 1964-03-13 1965-11-22

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2870537A (en) * 1958-03-14 1959-01-27 Ortner Samuel Pocket safety knife
US3025598A (en) * 1958-10-13 1962-03-20 Gillette Co Knife
US2948961A (en) * 1959-07-21 1960-08-16 Ortner Samuel Push button knife
US3316635A (en) * 1964-05-06 1967-05-02 Stanley Works Scoring knife

Cited By (142)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3708881A (en) * 1971-03-22 1973-01-09 R Bennett Multi position adjustable roofing knife
US3857176A (en) * 1972-12-11 1974-12-31 Stanley Mabo Knife with a retractable blade
US3879847A (en) * 1973-05-11 1975-04-29 Smart Ag Cutter with forwardly and rearwardly displaceable blade
US3927473A (en) * 1974-04-18 1975-12-23 Philip Morris Inc Replaceable blade knife
US4517741A (en) * 1982-05-19 1985-05-21 Castelluzzo James M Knife with plural replaceable blade storage and means for single blade extension
US4586256A (en) * 1985-01-07 1986-05-06 The Stanley Works Knife handle
US4761882A (en) * 1986-02-18 1988-08-09 Hunt X-Acto, Inc. Utility knife
AU595914B2 (en) * 1986-08-08 1990-04-12 James Castelluzzo Utility knife with slide cover
EP0271223B1 (en) * 1986-11-12 1990-09-26 McPherson's Limited Retractable blade knife
US4922610A (en) * 1987-03-10 1990-05-08 Szabo Stephan L Blade holder having a magazine
US5426855A (en) * 1992-11-30 1995-06-27 Psi, Inc. Safety utility knife
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
US5481804A (en) * 1994-10-12 1996-01-09 Platts; David Retractable-bladed knife
WO1996011637A1 (en) * 1994-10-12 1996-04-25 Innovative Surgical Technology, Inc. (Ist) Retractable-bladed knife
AU688176B2 (en) * 1994-10-12 1998-03-05 Innovative Surgical Technology, Inc. (Ist) Retractable-bladed knife
US5509205A (en) * 1995-01-30 1996-04-23 Millers Falls Tool Company Utility knife having blade retention feature
US5495670A (en) * 1995-05-04 1996-03-05 Fiskars Inc. Utility knife
US5960545A (en) * 1995-10-26 1999-10-05 The Nack Company Limited Utility knife with rotary blade magazine
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
US6605099B1 (en) 1996-02-07 2003-08-12 Johann F. Hellenkamp Automatic surgical device and control assembly for cutting a cornea
US5960544A (en) * 1996-04-03 1999-10-05 Beyers; Greg L. Double-ended dual mechanism retractable blade utility knife
US5603162A (en) * 1996-05-31 1997-02-18 Chen; Chun C. Utility knife combination
US6058607A (en) * 1996-06-17 2000-05-09 Allway Tools, Inc. Utility knife with snap-off carrier and dual control
EP0977532A2 (en) 1997-04-25 2000-02-09 Johann F. Hellenkamp Improved automatic surgical device for cutting a cornea and a cutting blade assembly and control assembly therefor
US5870828A (en) * 1997-06-04 1999-02-16 Violex-Bic, S.A. Utility knife system
WO1998055273A1 (en) 1997-06-04 1998-12-10 Violex Bic S.A. A utility knife system
AU731888B2 (en) * 1997-06-04 2001-04-05 Violex Bic S.A. A utility knife system
AU731888C (en) * 1997-06-04 2001-11-29 Violex Bic S.A. A utility knife system
US6000136A (en) * 1998-04-27 1999-12-14 The Stanley Works Knife handle
US6044562A (en) * 1998-07-27 2000-04-04 Dillenbeck; Edward J. Safety interlocking blade release mechanism for hand held cutting tools
US6233830B1 (en) 1999-05-07 2001-05-22 General Housewares Corporation Utility knife handle
USD434960S (en) * 1999-05-07 2000-12-12 General Housewares Corporation Utility knife
EP1077117A3 (en) * 1999-08-14 2001-04-11 Olympia Group, Inc. Adjustable safety 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
US6249975B1 (en) * 1999-12-20 2001-06-26 Hsing Tai Lin Blade support device for a knife
US6324763B1 (en) * 2000-04-07 2001-12-04 Tai-Wang Lee Structure art design knife
US6415514B1 (en) * 2000-08-03 2002-07-09 Tseng Min Chun Artistic knife with replaceable blade magazine
US6446340B1 (en) 2000-11-14 2002-09-10 Great Neck Saw Manufacturers, Inc. Utility knife
US6513246B2 (en) 2000-11-14 2003-02-04 Great Neck Saw Manufacturers, Inc. Utility knife
US20060059693A1 (en) * 2001-07-23 2006-03-23 Gregory Fossella Utility knife
US20040040159A1 (en) * 2001-07-23 2004-03-04 Gregory Fossella Utility knife
US7533467B2 (en) 2001-07-23 2009-05-19 Repetto Llc Utility knife blade
US20050028380A1 (en) * 2001-07-23 2005-02-10 Repetto Llc Utility knife
US7418784B2 (en) 2001-07-23 2008-09-02 Repetto Llc Utility knife
US7395600B2 (en) 2001-07-23 2008-07-08 Repetto Llc Utility knife
US6966113B2 (en) 2001-07-23 2005-11-22 Repetto Llc Utility knife
US6553674B1 (en) 2001-12-19 2003-04-29 Awi Acquisition Company Utility knife that protrudes a blade from a stored stack of blades
US6678958B1 (en) * 2002-05-01 2004-01-20 Awi Acquisition Company Utility knife with blade storage
US6845561B2 (en) 2002-09-13 2005-01-25 T&J Llc Replaceable-blade knife
US20040123468A1 (en) * 2002-09-13 2004-07-01 Timson Todd A. Replaceable-blade 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
WO2004106012A1 (en) * 2003-05-22 2004-12-09 Alltrade Tools, Llc. Knife with trigger actuator for retractable blade
US20040237312A1 (en) * 2003-05-22 2004-12-02 Hector Hernandez Knife with trigger actuator for retractable blade
GB2408229A (en) * 2003-05-22 2005-05-25 Alltrade Tools Llc Knife with trigger actuator for retractable blade
GB2408229B (en) * 2003-05-22 2006-09-20 Alltrade Tools Llc Knife with trigger actuator for retractable blade
US20070074402A1 (en) * 2003-05-22 2007-04-05 Hernandez Hector R Knife with trigger actuator for retractable blade
US7322110B2 (en) 2003-05-22 2008-01-29 Alltrade Tools Llc Knife with trigger actuator for retractable blade
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
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
US20050193566A1 (en) * 2003-11-10 2005-09-08 Brown Donald A. Utility knife
US8069569B2 (en) 2003-11-10 2011-12-06 Irwin Industrial Tool Company Utility knife
US20070294896A1 (en) * 2003-11-10 2007-12-27 Brown Donald A Utility knife
WO2005046946A3 (en) * 2003-11-10 2006-03-16 Donald A Brown Utility knife with actuator for moving blade carrier and for releasing blade therefrom, and related method
US20080256808A1 (en) * 2004-09-23 2008-10-23 Irwin Industrial Tool Company Slide assembly device for a snap-off blade utility knife
US20060080842A1 (en) * 2004-10-15 2006-04-20 Pacific Handy Cutter, Inc. Safety cutter with triple locking slider
US20060157076A1 (en) * 2005-01-19 2006-07-20 W.Kretzer Kg Pedicure device
US20060288586A1 (en) * 2005-04-18 2006-12-28 Critelli James M Releasable blade locking mechanism for utility knife
US7107688B1 (en) 2005-04-18 2006-09-19 Cooper Brands, Inc. Releasable blade locking mechanism for utility knife
US7305770B2 (en) 2005-04-18 2007-12-11 Cooper Brands, Inc. Releasable blade locking mechanism for utility knife
US7155829B1 (en) * 2005-10-04 2007-01-02 Fu-Cheng Sun Art design knife
US20070240314A1 (en) * 2006-02-28 2007-10-18 Ireland William A Knife
US7774943B2 (en) * 2006-02-28 2010-08-17 Wa1 Designs Limited Knife
US20070227012A1 (en) * 2006-04-04 2007-10-04 Constantine Richard S Cutting implement with cartridge
US8677630B2 (en) 2006-04-04 2014-03-25 Acme United Corporation Cutting implement with cartridge
US20110119928A1 (en) * 2006-04-04 2011-05-26 Richard Steven Constantine Cutting Implement with Cartridge
US7886445B2 (en) * 2006-04-04 2011-02-15 Acme United Corporation Cutting implement with cartridge
US20080086895A1 (en) * 2006-10-17 2008-04-17 Thomas Jerald Parks Utility knife with integrated hole punch
US20080172883A1 (en) * 2007-01-23 2008-07-24 Accurate Concepts, Inc. Measuring, scoring and cutting tool
US9539733B2 (en) * 2007-05-21 2017-01-10 Pacific Handy Cutter, Inc. Pocket safety cutter
US20080289191A1 (en) * 2007-05-21 2008-11-27 Leblanc Norman Folding utility knife and related method
US20140123501A1 (en) * 2007-05-21 2014-05-08 Pacific Handy Cutter, Inc. Pocket Safety Cutter
US7814664B2 (en) 2007-05-21 2010-10-19 Irwin Industrial Tool Company Folding utility knife
US9840013B2 (en) 2008-04-29 2017-12-12 Pacific Handy Cutter, Inc. Safety cutter with blade change/storage mechanism
US9676106B2 (en) 2008-04-29 2017-06-13 Pacific Handy Cutter, Inc. Safety cutter with guard-actuated blade deployment
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
US20090271990A1 (en) * 2008-05-02 2009-11-05 Huang Yuan De Retractable utility knife
TWI454353B (en) * 2008-05-02 2014-10-01 Olympia Tools International Inc Retractable utility knife
US20090277016A1 (en) * 2008-05-07 2009-11-12 Yuewei Wu Utility knife with an auto-retractable blade
US20100037467A1 (en) * 2008-08-15 2010-02-18 The Stanley Works Utility knife with blade wiper
US20100037466A1 (en) * 2008-08-15 2010-02-18 The Stanley Works Utility knife with blade lock
US20100037465A1 (en) * 2008-08-15 2010-02-18 The Stanley Works Utility knife with blade storage system
US8793881B2 (en) * 2008-08-15 2014-08-05 Stanley Black & Decker, Inc. Utility knife with blade lock
US20100037468A1 (en) * 2008-08-15 2010-02-18 The Stanley Works Utility knife with blade snapper
EP2153949A2 (en) 2008-08-15 2010-02-17 The Stanley Works Utility knife
US8683703B2 (en) 2008-08-15 2014-04-01 Stanley Black & Decker, Inc. Utility knife with blade wiper
EP2153947A2 (en) 2008-08-15 2010-02-17 The Stanley Works Utility knife
US8621753B2 (en) * 2008-08-15 2014-01-07 Stanley Black & Decker, Inc. Utility knife with blade storage system
EP2153948A2 (en) 2008-08-15 2010-02-17 The Stanley Works Knife
US8567070B2 (en) 2008-08-15 2013-10-29 Stanley Black & Decker, Inc. Utility knife with blade snapper
EP2517842A1 (en) 2008-08-15 2012-10-31 Stanley Black & Decker, Inc. Utility knife
US8695221B2 (en) 2008-08-21 2014-04-15 Wen Hao Utility knife with extended travel carriage
US8413337B2 (en) 2008-11-21 2013-04-09 Stanley Black & Decker, Inc. Dual front utility knife with interlock
US20100126024A1 (en) * 2008-11-21 2010-05-27 The Stanley Works Dual front utility knife with interlock
EP2189257A1 (en) 2008-11-21 2010-05-26 The Stanley Works A utility knife
US20100154224A1 (en) * 2008-12-22 2010-06-24 Meridian International Co., Ltd. Novel sliding cutting tool
US8028420B2 (en) * 2008-12-22 2011-10-04 Meridian International Co., Ltd. Sliding cutting tool
US20100180449A1 (en) * 2009-01-16 2010-07-22 Van Deursen Gary E Auto feed utility knife
USD624386S1 (en) 2009-02-12 2010-09-28 American Safety Razor Retractable blade knife
US20120279071A1 (en) * 2009-02-26 2012-11-08 Joe Garavaglia Utility Knife
US8904649B2 (en) * 2009-02-26 2014-12-09 Pacific Handy Cutter, Inc. Utility knife
CN101704250B (en) * 2009-10-15 2011-12-28 杭州巨星科技股份有限公司 Manual knife convenient for blade replacement
US8938883B2 (en) 2010-01-11 2015-01-27 Allway Tools, Inc. Cutting implements
US20110167647A1 (en) * 2010-01-11 2011-07-14 Donald Gringer Cutting implements
US8220161B2 (en) * 2010-07-28 2012-07-17 Chih-Wei Chang Multi-function cutter
US20120023754A1 (en) * 2010-07-28 2012-02-02 Chih-Wei Chang Multi-function cutter
US8776380B1 (en) * 2011-04-25 2014-07-15 Elwood Dean Quimby Utility knife with retractable blade
US8689450B2 (en) * 2011-04-29 2014-04-08 Acme United Corporation Knife having a reversible carriage
US20120272529A1 (en) * 2011-04-29 2012-11-01 Richard Steven Constantine Knife Having a Reversible Carriage
USD660675S1 (en) 2011-06-09 2012-05-29 Allway Tools, Inc. Twin blade head for a knife
US10179416B2 (en) 2012-06-28 2019-01-15 Hangzhou Great Star Tools Co., Ltd Utility knife
EP3332926A1 (en) * 2012-06-28 2018-06-13 Hangzhou Great Star Tools Co., Ltd. Utility knife
EP2868447A4 (en) * 2012-06-28 2016-07-27 Hangzhou Great Star Tools Co Ltd Utility knife
US10710254B2 (en) * 2012-12-05 2020-07-14 PenBlade, Inc. Safety cutting device
US9168648B2 (en) 2012-12-14 2015-10-27 Stanley Black & Decker, Inc. Vibration dampened hammer
US9550302B2 (en) 2012-12-21 2017-01-24 Stanley Black & Decker, Inc. Utility knife with blade wiper
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
US20160031097A1 (en) * 2014-08-01 2016-02-04 Sdi Corporation Cutter assembly having a limiting structure
US20160046026A1 (en) * 2014-08-15 2016-02-18 Stanley Black & Decker, Inc. Sliding blade utility knife
US10076846B2 (en) * 2014-08-15 2018-09-18 Stanley Black & Decker, Inc. Sliding blade utility knife
CN104369199A (en) * 2014-09-28 2015-02-25 顺德工业(江苏)有限公司 Blade-shake preventing structure of cutter knife regulator
USD749928S1 (en) 2014-12-29 2016-02-23 Js Products, Inc. Utility knife handle
USD749929S1 (en) 2014-12-29 2016-02-23 Js Products, Inc. Utility knife 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
USD782271S1 (en) 2015-04-29 2017-03-28 Unger Marketing International, Llc Tool handle
US10800052B1 (en) 2019-06-13 2020-10-13 Repetto Llc Utility knife, blade, and cartridge

Also Published As

Publication number Publication date
DE1948166B2 (en) 1976-04-15
JPS5017720B1 (en) 1975-06-23
GB1241913A (en) 1971-08-04
DE1948166A1 (en) 1970-04-02

Similar Documents

Publication Publication Date Title
US9956695B2 (en) Spring back safety and film cutter
US8984755B2 (en) Retractable utility knife
US8549755B2 (en) Compact utility knife
US8677630B2 (en) Cutting implement with cartridge
US6718640B1 (en) Cutting tool
US3863339A (en) Retractable blade knife
US5697157A (en) Heavy-duty box opener
US4038892A (en) Food slicer with indexing turret
US6112421A (en) Multi-use razor
US7325313B2 (en) Utility knife with quick release housing
US4621425A (en) Retractable knife handle
US5071426A (en) Surgical scalpel with retractable blade guard
US4663845A (en) Utility knife
FI113023B (en) Shaving Cartridge
US5868771A (en) Scalpel blade cover
EP1834740B1 (en) Blade cartridge for a utility tool
US4517741A (en) Knife with plural replaceable blade storage and means for single blade extension
US7520059B2 (en) Compact utility knife
US4660287A (en) Knife with replaceable blade
US5230152A (en) Dual blade utility knife
CA2310800C (en) Slitter device
US6357120B1 (en) Front-loading adjustable safety utility knife with safety quick-release lock
US6553672B2 (en) Folding knife with compression locking mechanism
US5251380A (en) Handle grip for a utility knife
US4005525A (en) Retractable cutting implement

Legal Events

Date Code Title Description
AS Assignment

Owner name: BANKERS TRUST COMPANY A NEW YORK BANKING CORPORATI

Free format text: SECURITY INTEREST;ASSIGNOR:AMERICAN SAFETY RAZOR COMPANY;REEL/FRAME:004324/0601

Effective date: 19840709

AS Assignment

Owner name: AMERICAN SAFETY RAZOR COMPANY

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:BANKERS TRUST COMPANY, AS AGENT;REEL/FRAME:005351/0018

Effective date: 19890413

AS Assignment

Owner name: FIRST NATIONAL BANK OF BOSTON, THE

Free format text: SECURITY INTEREST;ASSIGNOR:AMERICAN SAFETY RAZOR COMPANY, A DE CORP.;REEL/FRAME:005385/0278

Effective date: 19890414

AS Assignment

Owner name: AMERICAN SAFETY RAZOR COMPANY, VIRGINIA

Free format text: TERMINATION OF SECURITY INTEREST IN PATENTS;ASSIGNOR:FIRST NATIONAL BANK OF BOSTON, THE, AS AGENT;REEL/FRAME:007919/0324

Effective date: 19950803