Shears And Knives Patents (Class 30/146)
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Patent number: 11358264Abstract: The multifunctional pocket knife (1) is made up of a handle (2) formed by two rigidly connected sides (3, 3?) providing at least one stowage space (4) for foldable tools (6) each pivoting about link pins (5), (5?), respectively, disposed at each end of the handle (2). One of the tools (6) consists of a pair of scissors (8) extending along the longitudinal axis of the knife (1) and being made up of two planar blades (9, 9?) each comprising a cutting edge (10, 10?) and both pivoting about the same axis (5). A pair of scissors (8) intended to be incorporated in a multifunctional pocket knife (1).Type: GrantFiled: November 6, 2018Date of Patent: June 14, 2022Assignee: HELVETICA BRANDS SAInventors: Peter Hug, Arnaud Salin
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Patent number: 11278973Abstract: A rechargeable shear (1) includes: a motor (5) having a rotor (21) that is rotatable relative to a stator (20); a motor housing (4), which houses the motor (5); a grip housing (8) connected to the motor housing (4); a battery-holding housing (9) connected to the grip housing (8); and a shear part (3) disposed forward of the rotor 21 and operably driven by the rotor (21). The motor (5) may be brushless. The shear part (3) may be rotatable relative to the motor housing (4) using a manipulatable ring (85) and a detent system (89, 92-94). A light (48) for illuminating the shear part (3) and a workpiece being cut thereby may be provided on the grip housing (8) or the battery-holding housing (9).Type: GrantFiled: October 2, 2019Date of Patent: March 22, 2022Assignee: MAKITA CORPORATIONInventors: Hidenori Nagasaka, Shogo Tominaga
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Patent number: 9321152Abstract: The invention relates to A pliers (1) having two pliers limbs (2, 3) which are connected so as to be pivotable relative to one another in a box joint having a joint pin (4), a working region (7, 8) being formed on one pliers limb (2, 3) on the one side of the joint and a gripping region (9, 10) being formed on the other side of the joint, and a passed-through pliers limb (3) being formed with a push-through slot (11) which has a slot width (s) in the joint region and through which the other through-passing pliers limb (2) extends, the working regions of the pliers limbs (2, 3) moreover having, at least in part, a width (b) that is greater than the slot width (s), and the working regions (7, 8) designed in the form of jaws or cutting edges pivoting toward a shared central plane (E). In order to improve the pliers with regard to high performance while optimizing manufacturability, it is proposed that the joint pin (4) be laterally offset with respect to the central plane (E).Type: GrantFiled: August 4, 2011Date of Patent: April 26, 2016Assignee: KNIPEX-Werk C. Gustav Putsch KGInventors: Andreas Heinsohn, Bernd Riepe
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Patent number: 9187114Abstract: A cutting tool is provided which may include a first blade and a second blade rotatably coupled to the first blade. The cutting tool may include a first handle rotatably coupled to the first blade, the first handle rotatable between a deployed position and a folded position, and a second handle rotatably coupled to the second blade, the second handle rotatable between a deployed position and a folded position. The cutting tool may also include a first rotation lock configured to hold the first handle fixed relative to the first blade. The first handle may be configured to be rotatable relative to the first blade in response to the first rotation lock being disengaged. The first rotation lock may be configured to be held in the disengaged position in response to the first handle being disposed between the deployed position and the folded position.Type: GrantFiled: August 3, 2012Date of Patent: November 17, 2015Assignee: Leatherman Tool Group, Inc.Inventors: Melissa L. Covel, Tony Steven Peterson
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Patent number: 8959777Abstract: A shearing apparatus comprising an index portion, a thumb portion, and a ripping portion. The index portion has an index blade arcuately movable in a first direction defining an arc about a pivot. The thumb portion is pivotably connected to the index portion at the pivot, and has a thumb blade arcuately movable in a second direction that is substantially opposite the arc of the first direction. The ripping portion is disposed on the thumb blade or the index blade, and has a ripping blade manually movable in a third direction at an angle, parallel or perpendicular to a line parallel to at least one of the index blade and the thumb blade.Type: GrantFiled: December 6, 2011Date of Patent: February 24, 2015Assignee: EMVolution, Inc.Inventors: Scott A. Forman, Robert J. Winters
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Patent number: 8832943Abstract: Retractable scissors include a holder and a scissor piece mounted on the holder. The scissor piece is rotational with respect to the holder among a closed position, at which the scissor piece is retracted in the holder, a first open position, at which the scissor piece is open with respect to the holder at an acute angle, and a second open position, at which the scissor piece is open with respect to the holder wider than at the first open position. The scissor piece includes a first edge, and the holder includes a second edge that intersects and contacts the first edge. When the scissor piece is rotated with respect to the holder from the first open position toward the closed position, the scissor piece and the holder cooperate to function as a pair of scissors that cuts an object between the first and second edges. When the scissor piece is located at the second open position, the scissor piece functions as a blade of a knife, and the holder functions as a handle of the knife.Type: GrantFiled: June 26, 2012Date of Patent: September 16, 2014Assignee: Gerber Sakai Co., Ltd.Inventor: Kimiyuki Sakai
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Publication number: 20140190015Abstract: A shearing apparatus comprising an index portion and a thumb portion that are pivotable relative to one another about a pivot mechanism. One of the thumb blade and index blade is provided with a serrated portion, while the other of the index blade and the thumb blade is provided with a cutting edge, such that the serrated portion and the cutting edge cooperate with one another during the relative pivoting movement of the index portion and the thumb portion to carry out a shearing or severing action. The shearing apparatus can alternatively comprise a single blade portion, pulled by a handle, and provided with a serrated portion. In both embodiments, the serrated portion has a configuration that presents a compound angle, which comprises a cutting edge angle and an angle relative to the longitudinal direction.Type: ApplicationFiled: January 4, 2013Publication date: July 10, 2014Applicant: Emvolution, Inc.Inventor: Scott Forman
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Patent number: 8322039Abstract: A knife and device assembly includes a knife with a blade part and a handle part having on the blade part, near the handle part, a hook shaped part with an interior recess, in combination with a device comprising an extended handle. A front end of the handle has both a pin for engaging with and pivoting in the hook shaped part of the blade part, and a cutting element to cut metal wires and the like. The handle fulfills the function of cutting pliers with the handle part of the knife. The front end of the handle has a fork shape with two wings braced by the pin. The cutting element is received in a space formed between the wings, the pin and a bottom of the fork shape, and has a cutting part projecting beyond the handle.Type: GrantFiled: January 28, 2010Date of Patent: December 4, 2012Assignee: WildsteerInventor: Edouard De Buyer-Mimeure
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Publication number: 20120297549Abstract: Multi-purpose shears have a distal end and an opposing proximal end. The shears include a first elongated member having a first shearing end and a first gripping end opposed to the first shearing end. The first gripping end is in contact with a user's hand. The shears include a second elongated member with a second shearing end and a second gripping end opposed to the second shearing end. The second gripping end is in contact with the user's hand. The first and second elongated members are coupled to one another by a coupling element at a pivot location, wherein the first and second shearing ends move toward or away from one another in response to actuation by the user. The shears include a bladed tool configured to have an insertion slot that is generally oriented along an axis, wherein the bladed tool includes a blade within the insertion slot.Type: ApplicationFiled: August 9, 2012Publication date: November 29, 2012Applicant: RIP SHEARS, LLCInventor: Christopher SMITH
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Publication number: 20120137526Abstract: A shearing apparatus comprising an index portion, a thumb portion, and a ripping portion. The index portion has an index blade arcuately movable in a first direction defining an arc about a pivot. The thumb portion is pivotably connected to the index portion at the pivot, and has a thumb blade arcuately movable in a second direction that is substantially opposite the arc of the first direction. The ripping portion is disposed on the thumb blade or the index blade, and has a ripping blade manually movable in a third direction at an angle, parallel or perpendicular to a line parallel to at least one of the index blade and the thumb blade.Type: ApplicationFiled: December 6, 2011Publication date: June 7, 2012Inventors: Scott A. Forman, Robert J. Winters
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Publication number: 20120047745Abstract: A garden scissor having an auxiliary blade contains a first handle and a second handle, both of which are axially connected together, and a holder and a cutting blade, characterized in that: the holder includes a receiving groove mounted thereon and an auxiliary blade movably received in the receiving groove to be axially connected with the holder so that the auxiliary blade rotates axially to be moved outward based on requirement, thereby the garden scissor is portable and used easily to enhance operation value, and the griping method is not changed after rotating the auxiliary blade outward to cut the object, thus operating comfortably and conveniently.Type: ApplicationFiled: October 22, 2010Publication date: March 1, 2012Inventor: Chin-Sung Wu
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Publication number: 20110138631Abstract: Multi-purpose trauma shears adapted to include structure that enables rapid and effective cutting suitable for use in combat situations, critical care acute medical use or medical traumas requiring the removal of outerwear in a rapid manner. A U-shaped housing is positioned on a loop grip of the shears, the housing having an insertion slot defining an opening at one end and at least one blade having a cutting edge mourned within the housing. The blades are positioned within the housing so as to present a cutting edge obliquely to the insertion slot, so as to rend material inserted into the insertion slot. The insertion slot is generally configured so that the operator may safely snip in one direction and rend in the reverse direction.Type: ApplicationFiled: February 17, 2011Publication date: June 16, 2011Inventor: Christopher Smith
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Publication number: 20100192380Abstract: A knife and device assembly includes a knife with a blade part and a handle part having on the blade part, near the handle part, a hook shaped part with an interior recess, in combination with a device comprising an extended handle. A front end of the handle has both a pin for engaging with and pivoting in the hook shaped part of the blade part, and a cutting element to cut metal wires and the like. The handle fulfills the function of cutting pliers with the handle part of the knife. The front end of the handle has a fork shape with two wings braced by the pin. The cutting element is received in a space formed between the wings, the pin and a bottom of the fork shape, and has a cutting part projecting beyond the handle.Type: ApplicationFiled: January 28, 2010Publication date: August 5, 2010Applicant: WILDSTEERInventor: Edouard DE BUYER-MIMEURE
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Publication number: 20100037464Abstract: Scissors for cutting thermoformed plastic packages, or similar packages, have lever members including a handle portion, a offset portion and a cutting portion. The cutting portion includes cooperating blades of approximately 2.5 inches, with one of the blades having a pointed tip for piercing the packaging material. The offset portion keeps the user's hand at least 1.5 to 2 inches above a cutting plane, such that the cut material, which has sharp edges, does not scratch or cut the user's hand.Type: ApplicationFiled: October 21, 2009Publication date: February 18, 2010Inventor: Rodney Underhill
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Publication number: 20090151168Abstract: A cutting tool configured to cut packaging. The tool includes a handle and a blade having a cutting portion. The blade is affixed to the handle with the cutting portion extending outwardly from the handle. The cutting portion of the blade resides inside a retractable sheath that is movable between a blade guarding position and a blade exposing position. The sheath is coupled to the handle by a biasing assembly that biases the sheath into the blade guarding position whereat the cutting portion of the blade is received completely inside the sheath. The sheath retracts to the blade exposing position when the sheath is pressed against the packaging with sufficient force to overcome the biasing force applied thereto by the biasing assembly. When the sheath is retracted, the cutting portion of the blade is placed into contact with the packaging against which the sheath is pressed.Type: ApplicationFiled: December 18, 2007Publication date: June 18, 2009Inventor: Jeffry Dadam
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Patent number: 7210230Abstract: A cuticle cutter of the like is described which is of the scissors type. Instruments of this type, especially in beauty salons, require constant cleaning, sharpening and sterilisation. The cutter of the invention facilitates such procedures by permitting the handles (2, 21) to be separate from the blades (1, 1?). In the preferred embodiment the blades are snap fitted into the handles and the arrangement is such that on opening the cutters to a maximum surfaces on the handles enter into abutment with the blades in the region of the pivot (6) and further opening cams the blades away from the handles, releasing them without any necessity for manual contact. The blades can then be submitted to the above mentioned procedures and stored for further use.Type: GrantFiled: July 10, 2003Date of Patent: May 1, 2007Assignee: Zivi S/A CutelariaInventor: Paulo Roberto Wurzel
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Patent number: 7096586Abstract: By providing a movable, separate, and independent blade member which is normally maintained in a stowed and hidden position, a combined, integrated, multi-purpose scissors and box cutting product is achieved. In the present invention, the combined, integrated, scissors and box cutting product incorporates two arm members pivotally mounted to each other, with each arm member incorporating a blade portion and a handle portion. In the preferred construction, the movable blade member is retained within one handle portion of one arm member of the combined, integrated, scissors and box cutting product, with the movable blade member being deployed for use only upon activation by the user. In this way, the blade member remains concealed and hidden within the handle portion of the arm member in order to prevent unwanted or accidental contact of the blade member when not desired.Type: GrantFiled: June 3, 2002Date of Patent: August 29, 2006Assignee: Acme United CorporationInventors: David Carpenter, Christoper Aiston
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Patent number: 7080455Abstract: A cutting apparatus includes first and second subassemblies. The first subassembly has a first handle and a blade connected to the first handle, the blade including a proximal end portion attached to the handle, a distal end portion, and a cutting edge intermediate the proximal and distal end portions. The second subassembly has a second handle and an anvil with a knife-opposing surface. The first and second subassemblies are adapted to be manually assembled pivotally together to form a blade-and-anvil cutters and to be manually unsnapped to enable independent use of the first subassembly as a knife. The action of a user squeezing the first and second handles toward each other causes the knife-opposing surface of the anvil and the cutting edge of the blade to move toward each other in order to cut an object positioned intermediate the knife-opposing surface and the cutting edge.Type: GrantFiled: April 3, 2003Date of Patent: July 25, 2006Assignee: Ronan Tools, Inc.Inventors: John S. Ronan, Richard A. Kluender
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Patent number: 7043843Abstract: The invention relates to a device for cutting pastry, with limbs (3, 4), connected to each other by means of a hinge point and a large opening angle between the limbs (3, 4). According to the invention the pastry should also be cut with little application of force, whereby each limb (3, 4) has a cutting region (5) with an upper blade (6) on the upper limb (3) and a counter blade (7) on a lower limb (4) and a handle (17) for guiding and operating the device (1, 1a). The limbs (3, 4) are angled between the cutting region (5) and the handle (17), whereby the hinge point (2) is arranged on the end (20) of the handle (17) facing away from the cutting region (5).Type: GrantFiled: October 2, 2002Date of Patent: May 16, 2006Inventors: Loretta Krupka, Jürgen Gengnagel-Krupka
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Patent number: 7036228Abstract: A multifunctional knife device has a main handle, a main blade having a tang inserted in the main handle, an auxiliary handle, an auxiliary blade having a serrated tang inserted in the auxiliary handle, and a spring inserted in the main handle and the auxiliary handle. The main blade has a plurality of round holes, and the tang having a round aperture. The auxiliary blade has a circular aperture. A pivot bolt fastens the main blade and the auxiliary blade together. A nut engages with the pivot bolt. The main handle has a slot. A serrated block is inserted in the slot of the main handle. The auxiliary handle has a notch to match the slot of the main handle.Type: GrantFiled: August 6, 2002Date of Patent: May 2, 2006Inventor: Jiunn-Liang Chen
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Patent number: 6976311Abstract: An apparatus is provided comprising a first knife and a second knife. The first knife typically includes a first attachment device and the second knife includes a second attachment device to attach the two knives together. The first and second attachment devices can be detached to detach the two knives from each other. The first and second knives can be folding type knives. The first attachment device may be comprised of a first plate having an opening. The second attachment device may be comprised of a protrusion. The protrusion of the second attachment device can be inserted into the opening of the first plate to attach the first knife to the second knife.Type: GrantFiled: September 19, 2003Date of Patent: December 20, 2005Inventor: Victor W. Lee
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Patent number: 6877229Abstract: A folding knife has a handle, as well as, a first blade and a second blade, which are rotatably supported by the handle. When the first blade is located in the fold-out position and the second blade is located in the fold-in position, the first blade functions as a knife. When both the first blade and the second blade are located in the fold-out positions, the first blade and the second blade cooperate with each other so as to function as a pair of scissors. The folding knife provided merely with a pair of blades can function not only as a knife but also as a pair of scissors in spite of its simple structure. Thus, the folding knife is reduced in number of parts and is simplified in structure.Type: GrantFiled: May 20, 2003Date of Patent: April 12, 2005Assignee: Geber Sakai Co., LtdInventor: Kimiyuki Sakai
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Publication number: 20040231163Abstract: A folding knife has a handle, as well as, a first blade and a second blade, which are rotatably supported by the handle. When the first blade is located in the fold-out position and the second blade is located in the fold-in position, the first blade functions as a knife. When both the first blade and the second blade are located in the fold-out positions, the first blade and the second blade cooperate with each other so as to function as a pair of scissors. The folding knife provided merely with a pair of blades can function not only as a knife but also as a pair of scissors in spite of its simple structure. Thus, the folding knife is reduced in number of parts and is simplified in structure.Type: ApplicationFiled: May 20, 2003Publication date: November 25, 2004Inventor: Kimiyuki Sakai
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Publication number: 20040134074Abstract: A gardening flower scissors with container comprising a container with several slices inside to form at least a knife space, a saw space and a scissors space to store a scissors, a knife and a saw to contains a scissors, a knife blade and a saw blade; the scissors, knife blade and the saw blade can be folded into and stored into the corresponding space or tuned outward for application; a cover can also fold and cover the container or open, when the cover covers the container, it can be a handle for users to grip.Type: ApplicationFiled: January 10, 2003Publication date: July 15, 2004Inventor: Chi-Sui Lin
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Patent number: 6725544Abstract: This creation is to provide a kind of anvil structure improvement for garden clippers. Such anvil is installed at the end of garden clippers' first handle, allowing the moving blade at the end of the second handle to oscillate into contact against the inner anvil surface of that anvil. The inner side of that anvil is a flat surface, the tip of which is in a position of jutting out from the tip of the moving blade. The anvil features a first cutting edge at the anvil's outer side, and a second cutting edge is further installed at the tip of the anvil. The provision of such first, second cutting edge adds extra functions of cutting, digging and drilling to the garden clippers as their primary applications.Type: GrantFiled: April 14, 2003Date of Patent: April 27, 2004Assignee: Jiin Haur Industrial Co., Ltd.Inventor: Shih-Piao Wu
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Patent number: 6698099Abstract: A convertible knife assembly includes a knife and a conversion piece. The knife includes a blade with a handle end portion, a tip, a cutting edge intermediate the handle end an the tip, and a spine opposite the cutting edge. The conversion piece has a spine-opposing portion and a handle portion such that the conversion piece is adapted to be mounted on the knife pivotally with the spine-opposing portion opposing the spine of the blade and the handle portion opposing the handle of the knife. The action of a user squeezing the handle portion of the conversion piece and handle of the knife toward each other causes the spine-opposing portion of the conversion piece and the spine of the blade to move toward each other in order to bear against an object the user positions between the spine-opposing portion of the conversion piece and the spine of the blade.Type: GrantFiled: November 30, 2001Date of Patent: March 2, 2004Assignee: Ronan Tools, Inc.Inventors: John S. Ronan, Richard A. Kluender
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Publication number: 20030221320Abstract: By providing a movable, separate, and independent blade member which is normally maintained in a stowed and hidden position, a combined, integrated, multi-purpose scissors and box cutting product is achieved. In the present invention, the combined, integrated, scissors and box cutting product incorporates two arm members pivotally mounted to each other, with each arm member incorporating a blade portion and a handle portion. In the preferred construction, the movable blade member is retained within one handle portion of one arm member of the combined, integrated, scissors and box cutting product, with the movable blade member being deployed for use only upon activation by the user. In this way, the blade member remains concealed and hidden within the handle portion of the arm member in order to prevent unwanted or accidental contact of the blade member when not desired.Type: ApplicationFiled: June 3, 2002Publication date: December 4, 2003Inventors: David Carpenter, Christoper Aiston
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Publication number: 20030163921Abstract: A multi-functional cutter includes a handle, a stationary lower jaw secured to the handle, a first blade secured to the stationary lower jaw, a pivotal upper jaw connected with the handle, a second blade secured to the pivotal upper jaw so that the first and second blades face each other, and a third blade mounted on the stationary lower jaw. The multi-functional cutter may include a frame formed on the handle for holding a spare blade. The multi-functional cutter may include a cover movably mounted on the frame for concealing the spare blade. The multi-functional cutter may include a light source mounted on the handle.Type: ApplicationFiled: June 17, 2002Publication date: September 4, 2003Inventor: Chen-Tsung Tsai
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Publication number: 20030101590Abstract: A convertible knife assembly includes a knife and a conversion piece. The knife includes a blade with a handle end portion, a tip, a cutting edge intermediate the handle end an the tip, and a spine opposite the cutting edge. The conversion piece has a spine-opposing portion and a handle portion such that the conversion piece is adapted to be mounted on the knife pivotally with the spine-opposing portion opposing the spine of the blade and the handle portion opposing the handle of the knife. The action of a user squeezing the handle portion of the conversion piece and handle of the knife toward each other causes the spine-opposing portion of the conversion piece and the spine of the blade to move toward each other in order to bear against an object the user positions between the spine-opposing portion of the conversion piece and the spine of the blade.Type: ApplicationFiled: November 30, 2001Publication date: June 5, 2003Applicant: Ronan Tools, Inc.Inventors: John S. Ronan, Richard A. Kluender
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Patent number: 6331087Abstract: A combined pen and tool arrangement includes a lower penholder holding an ink cartridge for writing, an upper penholder fastened to the lower penholder, and a tool holder mounted inside the upper penholder and holding a pair of scissors and a cutter. The scissors and the cutter are respectively turned in and out of the tool holder and the upper penholder through a longitudinal slot in the tool holder and a longitudinal slot in the upper penholder.Type: GrantFiled: February 15, 2001Date of Patent: December 18, 2001Inventor: Chen-Shan Wang
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Patent number: 6098225Abstract: A pair of folding hand shears comprising first and second generally channel-shaped handles each having first and second ends, each generally channel-shaped handle having an open side and an at least partly closed side opposite the open side, the at least partly closed sides comprising shear-receiving openings. The folding hand shears also include first and second shear halves pivotally mounted to each other, with the shear halves being pivotally mounted between flanges at the first ends of the handles. Control straps extend between the flanges for limiting the maximum pivotal movement of the shear halves and for frictionally resisting pivotal movement of the shear halves. The folding hand shears are foldable between a closed, compact configuration and an opened, extended configuration for cutting with the shears and in the opened, extended configuration the open sides of the handles face each other. A plurality of additional tools are pivotally mounted to the handles.Type: GrantFiled: June 17, 1998Date of Patent: August 8, 2000Assignee: Bear MGC Cutlery Co., Inc.Inventors: Herman J. McIntosh, Ken E. Griffey, Greg Cook, Larry Hinchman
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Patent number: 6006432Abstract: A multifunctional pocket knife, in particular a Swiss knife, has lateral sides serving as a handle, and including at least one cigar cutter able to pivot or slide in a plane parallel to the inner faces of the lateral sides. The cigar cutter includes two rounded scissor elements pivoting, one with respect to the other, about a first axis pivot. One end of the first element is able to pivot about a second axis pivot enabling the first element to be pulled out of the knife. A spring blade, which can be pulled out, allows the scissor elements to be kept spaced open when they are pulled out of the knife. The spring blade limits the pivoting path of the second element about the second pivot axis. An elastic back blade transmits a constant force to the second scissor element through the agency of the spring blade.Type: GrantFiled: June 22, 1998Date of Patent: December 28, 1999Assignee: Wenger SAInventor: Maurice Cachot
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Patent number: 5857268Abstract: An exact movement of the scissors is provided by using elastic power of an elastic panel fixed on the fixed scissors body, wherein the front edge is installed in the coupling groove of the moving scissors body. A lighter or the flashlight may be mounted on the pocket tool. By installing the rear part of the elasticity panel such that the front edge has a part cut properly on the same line and to cooperate with the fixed scissors body and by installing the front edge of the part in the coupling groove made in the lower edge of the moving scissors body, it is possible to move the scissors exactly and repetitively because only the front edge part of the elasticity panel conveys the elastic power and is confined by the moving scissors body. The rear part of the elasticity panel is fixed on the fixed scissors body, and the flashlight or lighter etc. is coupled to the hollow surface formed by the coupling projection of the body.Type: GrantFiled: November 4, 1996Date of Patent: January 12, 1999Inventor: Kyunghan Park
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Patent number: 5689886Abstract: A tool assembly includes a housing having two side walls each having an inner face and an outer face. At least one of the two side walls has an elongate slot vertically defined therein. An upper recess and a lower recess are defined in upper and lower portions of the at least one side wall. A blade is mounted on the inner face of the at least one side wall. A control member is mounted on the outer face of the at least one side wall and is slidable along the elongate slot. The control member includes a stub detachably received in one of the upper and lower recesses. A biasing member includes a pressing portion urged on the stub and an abutment rested on the at least one side wall in the elongate slot. A positioning member extends through a hole defined in the control member, the biasing member, and the elongate slot, and is securely engaged in a bore defined in the blade.Type: GrantFiled: June 13, 1996Date of Patent: November 25, 1997Inventor: Shih-yuan Yeh
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Patent number: 5625951Abstract: A combination hand tool for cutting flexible duct and the like, which tool has both (i) a blade-holding mechanism which enables safe, quick and convenient replacement of a utility knife blade for cutting material requiring relatively low cutting pressure (e.g., the insulated portion of flexible duct) and (ii) a replaceable cutting tool having a cutting edge moveable against a cutting surface to enable the user to generate relatively high cutting force on a piece requiring such high cutting force (e.g., the metal or plastic wire component of flexible duct). In the preferred embodiment of the invention, the aforementioned blade-holding mechanism includes two similarly-shaped, overlying plates which are both pivotably moveable to enable separation of the plates and replacement of the utility knife blade positioned therebetween. Also, the aforementioned replaceable cutting tool is held in its operating position by a holding mechanism for releasably securing the cutting tool.Type: GrantFiled: December 4, 1995Date of Patent: May 6, 1997Assignee: Flexible Technologies, Inc.Inventor: Michael R. Hamlin
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Patent number: 5546661Abstract: A pair of shears has a fixed blade, a fixed handle connecting the fixed blade, a driving blade, and a driving handle connecting the driving blade, a spring between two handles, a pin on the crisscross portion between two blades, and a switch button on the outer side of the fixed handle. The first threaded hole and the first positioning post are formed on the front of the fixed blade. The second threaded hole and the second positioning post are formed on the inner side of the fixed handle. A cutting device such as a saw blade and a scikle is disposed in front of the fixed blade. A through hole and a positioning hole are formed on the rear of the cutting device. The first positioning post inserts in the positioning hole. A screw passes through the through hole and the first threaded hole to fasten the cutting device.Type: GrantFiled: November 13, 1995Date of Patent: August 20, 1996Inventor: Chung-Jeng Yang
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Patent number: 5469622Abstract: A pizza cutting scissor comprising: a first scissor blade having a front segment and a rear segment, the front segment formed in a planar rectangular configuration with a sharp inboard edge and a dull outboard edge, the blade including a screw aperture, the rear segment being formed in a planar circular configuration with a large aperture extending therethrough, the rear segment being coupled upon the rearward extent of the front segment, a second scissor blade having a front segment and a rear segment, the front segment formed in a planar rectangular configuration with a sharp inboard edge and a dull outboard edge, the front segment being slanted forming an angle of between about one hundred and one hundred and fifty degrees, the blade having a screw aperture extending therethrough, the rear segment being formed in a planar circular configuration with a large aperture extending therethrough, the rear segment being coupled upon the rearward extent of the front segment, a planar circular cutter with a sharp ouType: GrantFiled: November 1, 1994Date of Patent: November 28, 1995Inventor: John T. Gradoni
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Patent number: 5430940Abstract: The present invention relates to scissors combined with a cutter knife. Since scissors and a cutter knife are connected together, a user can easily and conveniently change cutting instruments from scissors to a cutter knife or vice versa depending on his need, in addition to a convenient, easy and simultaneous keeping of both scissors and the cutter knife for later use.Type: GrantFiled: January 19, 1994Date of Patent: July 11, 1995Inventor: Sungdae Lym
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Patent number: 5079801Abstract: Protection scissors comprising blades with sharpened outer edges and handles functioning as brass knuckles.Type: GrantFiled: October 29, 1990Date of Patent: January 14, 1992Inventor: Larry M. Peterson
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Patent number: 4794692Abstract: A multipurpose miniature hand tool includes two casings defining an outer housing. A roll of measuring tape, two scissor blades, and an elongated snap-off blade are extendably and retractably mounted within the outer housing. Each of the scissor blades are restricted to be movable only along one of the casings. A cap bolt extends through a lengthwise extending slide slot of each of the casings and through a pivot hole of each of the scissor blades and engages threadably with a nut for fastening tightly the casings and the scissor blades thereon. When the nut is somewhat loosed from the bolt, the nut and the bolt can slide along the slide slots of the casings together with the scissor blades, thereby permitting the scissor blades to extend partially out of the outer housing. At that time, the casings from the movable handles of a pair of scissors.Type: GrantFiled: November 2, 1987Date of Patent: January 3, 1989Assignee: Tair Chen Co., Ltd.Inventor: Reid Wang
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Patent number: 4763415Abstract: A combined scissor and pencil sharpener includes a pair of scissors having plastic looped handle portions one of which incorporates a pencil sharpener in order to offer the user dual access of both implements.Type: GrantFiled: March 12, 1987Date of Patent: August 16, 1988Inventor: Andrew Y. Huang
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Patent number: 4753009Abstract: A multi-function sewing implement having a scissor configuration wherein one cutting edge is curved for raising and severing single stitches and the opposing cutting edge is straight. The adjacent edge member is provided with an extension containing a recess useful in the ripping of seams.Type: GrantFiled: March 9, 1987Date of Patent: June 28, 1988Inventor: Mary I. Haga
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Patent number: 4519136Abstract: A shellfish cutting and eating implement having first and second lever members pivotally connected together. The first lever member includes a first elongated handle portion and a first elongated jaw portion defining a first cutting edge, a first substantially flat side surface and a flared end. The second lever member includes a second elongated handle portion and a second elongated jaw portion defining a second notched cutting edge. The flared end of the first lever member is substantially flat and perpendicular to the first flat side surface to help keep the first jaw portion in the proper position during the cutting operation. The flared end also defines a pointed forward end, in the shape of a fork, to facilitate spearing and removal of the shellfish meat.Type: GrantFiled: February 27, 1984Date of Patent: May 28, 1985Inventor: Ernest D. Walker