Intermediate Pivot Patents (Class 30/254)
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Patent number: 6154964Abstract: A hose cutter tool includes scissor arms joined at a pivot point having opposed jaws, one of which includes a cutter blade and the other of which defines an arcuate support surface to hold tubing material. As the arms are manipulated, the blade descends through and cuts the tubing material.Type: GrantFiled: March 22, 1999Date of Patent: December 5, 2000Assignee: Lisle CorporationInventor: Kevin L. Tally
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Patent number: 6112418Abstract: Safety shears which include two arms connected by a pin, each arm including a cutting blade and a handle, wherein at least one of the handles includes a weakened portion such that in operation that handle will break before either cutting blade.Type: GrantFiled: April 29, 1998Date of Patent: September 5, 2000Assignee: Plato Products, Inc.Inventor: William H. Strater
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Patent number: 6112415Abstract: A hookbill wire cutter specially designed to cut wire mesh components features a pair of opposing handles connected to a pair of jaws. Each jaw features an arcuate blade having a flat cutting portion and a tapered portion. The jaws are pivotally joined to open and close when the handles are actuated so that the blade cutting portions overlap in a scissor-like fashion. One of the arcuate blades features a notched tip that engages a wire member perpendicular to the wire member being cut. As a result, the wire cutter may be quickly and easily positioned. The arcuate blades are dimensioned to substantially surround a wire member so that the wire member is sheared flush when the jaws of the wire cutter are closed. As a result, generally smooth and flat cut wire ends are produced.Type: GrantFiled: January 15, 1999Date of Patent: September 5, 2000Assignee: GS Metals Corp.Inventors: Steve Hagene, Terry McCrary, Donald Ohms
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Patent number: 6108913Abstract: A stripping tool for removing clothing, and the like, in emergency situations. The present tool allows for clothing to be stripped from a patient quickly, safely, and efficiently. The stripping tool may be pulled toward the operator of the tool for quickness and ease of use. A handle provided to be used within the operators palm creates an ergonomic, comfortable grip. The handle allows a blade to be pulled upward in a scissoring motion to start a cut in fabric. Therefore, thicker, and heavier fabric may be removed since an initial cut may be made.Type: GrantFiled: April 26, 1999Date of Patent: August 29, 2000Inventor: John B. Tidwell
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Patent number: 6092291Abstract: A plier-like tool for removing a face mask from a protective sports helmet worn by an athlete in such a way as to minimize the risk of exacerbating an existing spinal injury. The tool has a buttress portion and a blade portion pivotally connected to each other. The blade portion has a sharpened blade which, upon application of pressure to hand grips, slices through the plastic clips that are normally used to attach such face masks to the helmet. The buttress portion includes a cut-out portion and transverse slot that engage the metal bars of the face mask to prevent the tool from slipping off the bars, and the blade portion includes a notch to ensure that the blade portion engages the plastic clips.Type: GrantFiled: June 15, 1999Date of Patent: July 25, 2000Inventor: Michael J. Cendoma
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Patent number: 6061912Abstract: A cutting interment (10) for use on multi-strand plastic fiber materials. Opposed handles (22a and 22b) on arms (18a and 18b) may be manually operated to close jaws (14a and 14b) with a cavity (42) for crimping. At the base of the cavity (42) are cutting edges (52a), which employ heat from either heating elements (54a and 54b) or an external source to cut and simultaneously cauterize the cut ends. Optional reliefs (44 and 46) may also be provided to contain and focus the heat at the cavity (42) and thus efficiently apply it specifically to the working material.Type: GrantFiled: September 29, 1998Date of Patent: May 16, 2000Inventor: Eileen L. Gazaway
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Patent number: 6018875Abstract: A sheet metal shears for protecting from injury the hand of a user holding the sheet metal shears while cutting a piece of sheet metal. The tool includes sheet metal shears having a pair arms pivotally coupled together with each arm having a cutting blade and a lever handle. The lever handle of one of the arms has a closed finger loop distal the cutting blade of the one arm. The lever handle of the other arm has a generally U-shaped open finger loop distal the cutting blade of the other arm. The open finger loop has a pair of space apart elongate portions and an arcuate portion connecting the elongate portions of the open finger loop together. A first of the elongate portions connects the open finger loop to the lever handle of the other arm. A second elongate portion has an arcuate region for forcing a portion of the sheet metal cut by the cutting blades away from the open finger loop to protect the hand of the user from injury from the cut edges of the sheet metal while the user is cutting the sheet metal.Type: GrantFiled: October 8, 1998Date of Patent: February 1, 2000Inventor: Fernando J. Miranda
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Plastic handles for a cutting instrument such as scissors and scissors having a pair of such handles
Patent number: 6000138Abstract: Handles for cutting instruments such as scissors are described, each handle being made of a relatively rigid plastics material and being provided in its finger-receiving hole portion (8;8') with a lining ring (15;15') of elastically deformable material, such as natural or synthetic rubber. Such elastically deformable ring permits the scissors to adapt itself to the fingers of the user, independently of their size or whether the user is right- or left-handed.Type: GrantFiled: April 7, 1994Date of Patent: December 14, 1999Assignee: Zivi S.A. - CutelariaInventor: Jose Carlos Mario Bornancini -
Patent number: 5987755Abstract: A shear device includes a pair of handles having one end pivotally coupled together at a pivot shaft, and a pair of cutter blades secured to the handles and each having a notch. A knob is slidably engaged in the handles and includes a pin for engaging with the notches and for securing the cutter blades together. A button is slidably engaged in one of the handles. The knob includes a pawl for hooking to the button and for securing the knob to the button such that the knob may be secured to the handles and such that the pin may not be disengaged from the notches of the cutter blades.Type: GrantFiled: June 15, 1998Date of Patent: November 23, 1999Inventor: Cheng Hsiung Shih
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Patent number: 5987750Abstract: A hose cutter tool includes scissor arms joined at a pivot point having opposed jaws, one of which includes a cutter blade and the other of which defines an arcuate support surface to hold tubing material. As the arms are manipulated, the blade descends through and cuts the tubing material.Type: GrantFiled: April 10, 1998Date of Patent: November 23, 1999Assignee: The Lisle CorporationInventor: Kevin Tally
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Patent number: 5970615Abstract: A pair of combined cutting and thinning shears is comprised of a pair of handles, a pair of cutting blades attached to respective front ends of the handles, and a pair of thinning blades attached to respective rear ends of the handles. The cutting blades are pivoted together at a position adjacent the handles. A guide tab on one of the thinning blades mate with the opposite thinning blade to ensure their proper alignment when closed. In a second embodiment, the handles include inside edges that are in constant engagement with each other throughout their entire range of movement to ensure alignment between the thinning blades. Both embodiments can be used to cut or thin hair by simply positioning hair between either the cutting blades or thinning blades.Type: GrantFiled: April 14, 1998Date of Patent: October 26, 1999Inventor: Albert Wall
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Patent number: 5964038Abstract: Disclosed is a device for use by a hair stylist to cut the hair of a person. In one embodiment, the device comprises first and second blade members each having a handle portion and a blade portion. Each of the blade portions has a cutting edge and a non-cutting edge terminating in a dull or rounded end. By movement of the handles, the blade portions are rotatable from a closed position to an open position. In the closed position, the non-cutting edges of the blade portions are spaced apart to form a first V-shaped gap which may receive but not cut any hair. In the open position, the cutting edges of the blade portions are spaced part and any hair placed therein is cut when the blade portions are moved to the closed position. In both the open and close positions, the cutting edges can never be brought into contact with the stylist's hands and fingers or the skin of the client.Type: GrantFiled: September 10, 1997Date of Patent: October 12, 1999Inventor: Pasquale DeVito
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Patent number: 5950316Abstract: The two straight line segments respectively constituting the intersection of the holding plane, on the one hand, the cutting plane, on the other hand, and the plane containing the median axis of the members forming handles and perpendicular to the holding plane define between them a lateral inclination angle. Further, the projection of a median axis of the cutting edges onto the holding plane defines with the median axis of the members forming handles an angle of inclination in the holding plane.Type: GrantFiled: April 23, 1997Date of Patent: September 14, 1999Assignee: Deville Sa Secateurs PradinesInventors: Arnaud Asselin, Alain Foucher
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Patent number: 5950314Abstract: A step-separating shearing tool includes a first handle and a second handle. A first blade portion is connected to the first handle, and a second blade portion, which includes an L-shaped slot, is hinge-connected to the first blade portion and to the first handle. A rocker arm connects the second handle and the first blade portion. The step-separating shearing tool also includes an automatic step-separating mechanism. This mechanism includes: a double-oscillating rod, which is hinge-connected to the rocker arm; a slider on the double oscillating rod, which is received in the L-shaped slot of the second blade portion; and a torsion spring connected between the rocker arm and the double oscillating rod. When the shearing tool is used in a cutting operation for cutting items having a relatively small diameter, the slider is located in a short slot portion of the L-shaped slot during the entire cutting operation.Type: GrantFiled: August 5, 1997Date of Patent: September 14, 1999Inventor: Jung-Hsien Chang
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Patent number: 5950313Abstract: A hand-held power-operated blade-actuating or other work member actuating device, especially useful as shears for processing comestible products such as fowl. A servo mechanism and linkage connected with a movable blade and a finger control causes controlled powered movement of the blade in coordination with the finger control. A fixed blade and a pivoted blade are insertable and removable as a unit from a hand-held frame in which the fixed blade is restrained against rotation relative to the frame. The blades and frame are constructed so the blades are insertable or removable only when closed. In a preferred embodiment the fixed blade is retained in part by two load bearing pins extending from the frame and located substantially diametrically opposite each other relative to the pivot axis of the movable blade.Type: GrantFiled: August 21, 1996Date of Patent: September 14, 1999Assignee: Bettcher Industries, Inc.Inventors: Raymond J. Herrmann, Arthur W. Zimmerman
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Patent number: 5875553Abstract: A hair styling apparatus is provided which includes a hair thinning scissors and a hair cutting scissors releasably interconnected to one another at a common pivot point and secured together by a connector device to prevent relative movement so that a hair stylist can manipulate both scissors with precision to simultaneously thin and cut the hair of an individual while permitting disengagement of the two scissors for separate use, easy cleaning and/or substitution of one scissors for another.Type: GrantFiled: April 23, 1997Date of Patent: March 2, 1999Inventors: Edward M. Geib, Jr., Hidemi Adachi
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Patent number: 5860215Abstract: A scissors that is designed for use by a particular handed person that is modified to be used by an other-handed person (e.g., a left-handed scissors for use by a right handed person) includes a pivot joint, and two blade members pivotally coupled together. At least one blade member has a levered handle behind the pivot joint. The levered handle acts on a fulcrum member to apply a lever force to a portion of the pivot joint to increase the tension and friction between the cutting edges of the blade members, when the motion of the users thumb and fingers would otherwise tend to pull the blade members apart and decrease tension and friction between the blade members, if no levered handle was present.Type: GrantFiled: August 7, 1996Date of Patent: January 19, 1999Inventors: Scott H. Roskam, Dennis E. Soucie
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Patent number: 5783800Abstract: A hair braiding tool for fusing the end of a braid of synthetic fibers includes a first elongated member having at least one substantially semi-cylindrical transverse groove formed in a surface thereof with the groove having an open end and a closed end and a second elongated member pivotally connected to the first elongated member and having at least one substantially semi-cylindrical transverse groove formed in a surface thereof with the groove having an open end and a closed end. Upon bringing the first and second members into engagement with each other, the semi-cylindrical grooves therein mate with each other to define a cylindrical passage having an open end and a closed end for receiving a braid end therein. An electrical heating element is disposed in contact with the closed end of the cylindrical passage for trimming and fusing the braid end.Type: GrantFiled: August 12, 1996Date of Patent: July 21, 1998Inventors: Ivan C. Thompson, Henry Dawson, Lisa L. Little
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Patent number: 5778540Abstract: A tool includes a pair of levers having a middle portion pivotally coupled together at a pivot shaft and having a pair of blades formed in one end and having a pair of handles formed in the other end. The handles each includes an opening having a peripheral surface for engaging with a ring which may engage with and may protect the fingers of the user. The handles each includes a peripheral rib for engaging with the peripheral grooves of the rings and for securing the rings to the handles.Type: GrantFiled: March 7, 1997Date of Patent: July 14, 1998Inventor: Te Chien Huang
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Patent number: 5774991Abstract: A pair of shears comprises a first blade connecting to a first grip and a second blade connecting to a second grip. A first notch is formed at the bottom of the first blade. A second notch is formed at the bottom of the second blade. A round hole is formed on the front portion of the first grip. A tongue is positioned on the upper surface of the front portion of the first grip. The positioning device has at least a first hole to receive a first pivot and a second hole to receive a second pivot. A first and second recesses are formed in the upper inner periphery of the positioning device. An opening is formed in the positioning device to receive the front portion of the first grip. The first pivot passes through the first hole and the round hole to fasten the positioning device and the first grip pivotally.Type: GrantFiled: May 28, 1996Date of Patent: July 7, 1998Inventor: Jun-Chen Shi
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Patent number: 5769859Abstract: This invention relates to umbilical scissors and, more particularly, to umbilical scissors having birth-related indicia associated therewith. In this regard, the umbilical scissors may be labeled with the birth data or provided with engraved or embossed birth data or indicia in the form of a color-coded handle to indicate the gender of a baby. Further, birth data may be provided on a label, such as a gummed label or plate, which may be mounted directly to the scissors or to a container or frame in which the scissors are placed for permanent storage and/or display.Type: GrantFiled: April 9, 1996Date of Patent: June 23, 1998Inventor: William R. Dorsey
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Patent number: 5749147Abstract: Scissors has a first scissor member and a second scissor member which are pivotally coupled to each other. The scissors comprises a blade formed with and extetending along at least one of the scissor members and a fastening memeber is provided with at least a tip portion of the other one of the scissor members to fasten the associated sciccor member to a material to be cut.Type: GrantFiled: July 31, 1996Date of Patent: May 12, 1998Assignee: Hasegawa Hamono Kabushiki KaishaInventor: Yoshinobu Hasegawa
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Patent number: 5699617Abstract: A compound action snips includes a pair of handles mutually connected at a handle pivot and a pair of cutting blades connected to the handles. The blades each having a proximal end attached to a distal portion of one of the handles, and the blades are mutually connected at a blade pivot, so that converging movement of the handles causes converging movement of the blades. The blades have a cutting length in a range of 2.5 to 3.5 inches and a functional handle length of about 5.8 inches. The snips have a ratio of cutting length to overall snips length in a range of about 0.24 to 0.33, and a ratio of cutting length to handle length in a range of about 0.4 to 0.6. In addition, the ratio of the cutting length to the angular range of motion of the handles is in the range of about 0.05 to 0.09 inches/degree for a handle range of movement of 40.degree. to 50.degree..Type: GrantFiled: March 1, 1996Date of Patent: December 23, 1997Assignee: Cooper IndustriesInventor: Mel Corrie Mock
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Patent number: 5694694Abstract: An improved scissors includes a pivot joint having a pivot axis, a first blade member having a first cutting edge and a longitudinal axis, and a second blade member having a second cutting edge. The second blade member is pivotally coupled by the pivot joint to the first blade member with the first cutting edge adjacent and in contact with the second cutting edge. Moreover, the pivot joint is coupled to the first blade member to incline the first blade member relative to the second blade member and the pivot joint, so that the inclination of the first blade member produces a load transverse to the pivot axis of the pivot joint, which corresponds to the direction along the longitudinal axis of the first blade member to produce and determine the tension and friction along the cutting edges. Further, the first blade member may also include a first ride area, and the second blade member may also include a second ride area, so that the first ride area is spaced from and free of contact with the second ride area.Type: GrantFiled: August 5, 1994Date of Patent: December 9, 1997Assignee: Maksor, L.L.C., a Limited Liability CompanyInventor: Scott H. Roskam
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Patent number: 5692305Abstract: A scissors includes a pivot joint having a pivot axis, a first blade member and a second blade member. The first blade member has a first cutting edge, a longitudinal axis, and a pivot joint hole. The pivot joint hole being inclined at least 1.0 degree relative to a line perpendicular to the longitudinal axis (which corresponds to an angle "a" of 89.0 degrees or less with respect to the longitudinal axis) in a direction along the longitudinal axis of the first blade member, and is shaped to hold the pivot joint in a fixed inclination. The second blade member has a second cutting edge, and is pivotally coupled by the pivot joint to the first blade member with the first cutting edge adjacent to the second cutting edge. The pivot joint is also coupled to the first blade member through the pivot joint hole in the first blade member, and the pivot joint is maintained in a fixed inclined orientation relative to the direction along the longitudinal axis of the first blade member.Type: GrantFiled: June 6, 1995Date of Patent: December 2, 1997Inventor: Scott H. Roskam
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Patent number: 5682679Abstract: A hand tool having a pair of pivotally connected blades connected to a cutting blade having an arcuate outer edge with teeth thereon and an anvil so that on movement of the handles toward each other, the blade rotates toward the anvil and the anvil moves toward the blade to cut an object located between the blade and anvil.Type: GrantFiled: May 30, 1995Date of Patent: November 4, 1997Inventor: Edward Dorma
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Patent number: 5659959Abstract: A two-lever implement, such as shears, is provided. The implement includes a first lever having a first handle fixed thereon and a second lever pivotally connected to the first lever. The second lever has a second handle which includes a fixed core having an axis and a rotatable outer member disposed about and coaxial with the fixed core and rotatable to and from an at-rest position about the axis. The implement also includes resilient structure carried by the second lever for biasing the outer member back to the at-rest position after the outer member has been moved from the at-rest position.Type: GrantFiled: February 23, 1996Date of Patent: August 26, 1997Assignee: General Housewares Corp.Inventor: Jurgen M. Parlowski
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Patent number: 5638602Abstract: A cable severance tool (10) having approximately flat cutting edges (40). An opening (41) formed by the edges (40) as the severance heads move together is preferably approximately elliptical, oval or hexagonal-shaped. The flat severance edge (40) and the elongated opening (41) formed, allows hardened steel strands (4) of wire cable (1) to be gathered and severed rather than cut.Type: GrantFiled: April 17, 1995Date of Patent: June 17, 1997Assignee: Cooper IndustriesInventor: Gary Lee Wilhelm
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Patent number: 5625952Abstract: An improved locking mechanism for a cutting tool (1) is disclosed. The locking mechanism includes a locking block (15) transversely located through or on one handle (12) of the cutting tool (1). The locking mechanism incorporates a shaped spring (18) adapted to restrain the locking block (15) in either the locked or unlocked position.A cutting tool (1) having a pair of handles (11,12) operable to move at least one cutting blade relative to a second cutting blade or anvil and including the locking mechanism described is also disclosed.Type: GrantFiled: June 6, 1995Date of Patent: May 6, 1997Inventor: Raymond D. Thomas
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Patent number: 5592742Abstract: A cutting edge arrangement comprising multiple cutting plates, each plate having opposing planar surfaces and a cutting edge along one side, said plates joined together along facing planar surfaces, the cutting edges aligned parallel to each other and slightly offset in a direction perpendicular to the cutting edges, wherein said plates may be removed one by one to maintain a sharp cutting edge.Type: GrantFiled: March 13, 1995Date of Patent: January 14, 1997Inventor: Toshio Okamura
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Patent number: 5592743Abstract: The present invention relates to scissor action tools such as garden shears or the like which are provided with a pair of cooperatively engaging members united for scissor action about a joint. In particular, this invention relates to tools of the type provided with a shock absorber for absorbing the impact created upon complete closure of the tool. The shock absorber includes a shank secured to one of the members. The shank is configured to merge into a resilient head which is formed as an annular structure. The head comes into abutting relationship with the other member when the members assume a closed position.Type: GrantFiled: March 9, 1994Date of Patent: January 14, 1997Assignee: Fiskars Inc.Inventors: Ernest D. Labarre, Jerrold N. Austin
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Patent number: 5560107Abstract: A cutting tool having a pair of cooperating elongated members each having a handle portion and a head portion. The top surface of one of the head portions has a countersunk recess in its bore having a height H1. A brass ring having a thickness T1 is received in the recess. A bolt passes through aligned apertures in the respective head portions and has a nut threaded on its end. Part of the shank of the bolt has a circular cross section and the remainder of the shank has two opposed convex sides and two opposed flat sides and the respective portions of the bolt mate with similarly configured bore holes in the respective head portions.Type: GrantFiled: August 14, 1995Date of Patent: October 1, 1996Inventor: Paul W. Herbert
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Patent number: 5528833Abstract: Scissors having a pair of blades that are pivotally connected to each other, each blade having a handle portion and a cutting portion detachably connected thereto. The cutting portion of each blade has a ceramic coating on a cutting edge thereof to increase its cutting life and to provide long lasting sharpness. Depending upon the component used in the coating process, the ceramic coating can be colored.Type: GrantFiled: April 19, 1994Date of Patent: June 25, 1996Assignee: Kabushiki Kaisha SangiInventor: Shuji Sakuma
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Patent number: 5517761Abstract: A pair of scissors with an identification attachment for distinction and decoration, comprising two blades, two injection molded handles respectively put onto the two blades at their lower parts, two halves of a slot respectively made at the opposing inner sides of the two handles on the front face or even on each of the front and back faces to form a complete slot, a plurality of pins (or pin holes) disposed on one of the two halves, and a marking piece shaped like that of the slot but smaller in size and having a plurality of pin holes (or pins) on the underside corresponding to the pins (or pin holes) disposed on one of the two halves, so that the marking piece can be inlaid to properly cover the two halves of the slot for identification purpose when tile two handles are closed.Type: GrantFiled: January 19, 1995Date of Patent: May 21, 1996Inventor: Ming-Lu Wang
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Patent number: 5517762Abstract: A pair of blade replacement type scissors in which a shaft portion of a blade portion is engaged with a groove formed in a shaft portion of a grip so that the respective shaft portions can be bolted together and in which said grip can be separated to two parts or coupled by inserting one part into the other part and fixed with a stopper screw so that the blade portion can be replaced and the length of the grip can be adjusted, and a pair of scissors in which the blade lines of said moving blade and said stationary blade are warped in the shape of arc in the same direction in order to facilitate the cutting of hair.Type: GrantFiled: March 24, 1995Date of Patent: May 21, 1996Inventor: Takayoshi Kuribayashi
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Patent number: 5501016Abstract: A pair of blade replacement type scissors in which a shaft portion of a blade portion is engaged with a groove formed in a shaft portion of a grip so that the respective shaft portions can be bolted together and in which said grip can be separated to two parts or coupled by inserting one part into the other part and fixed with a stopper screw so that the blade portion can be replaced and the length of the grip can be adjusted, and a pair of scissors in which the blade lines of said moving blade and said stationary blade are warped in the shape of arc in the same direction in order to facilitate the cutting of hair.Type: GrantFiled: November 2, 1994Date of Patent: March 26, 1996Inventor: Takayoshi Kuribayashi
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Patent number: 5499454Abstract: A buttonhole scissors comprising a first blade having a blunt distal end and an inner flat surface between a tapered cutting edge and an outer edge, a second blade having a pointed distal end and an inner flat surface between a tapered cutting edge and an outer edge, these blades slidable over each other with each of the inner flat surfaces in close cutting engagement, a pair of handles for the blades pivotally connected, an intermediate portion of each blade provided with a notch arranged between the cutting edge and the pivot point and cooperating to form a noncutting area which receives cloth not to be cut, and an adjustable setting means mounted through one handle and contacting the other handle, and capable of adjustment to limit the movement of the blades relative to each other.Type: GrantFiled: October 3, 1994Date of Patent: March 19, 1996Inventor: Dorothy G. Compton
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Patent number: 5483747Abstract: A lightweight renewable hand-held tool that may be easily renewed in the field including a tool head having a tapered shaft, an expandable sleeve, a hollow handle, and a movement assembly for moving the expandable sleeve back and forth along the tapered shaft in response to a rotation of the hollow handle. The expandable sleeve includes a tapered interior that slidably mates with the tapered shaft. Consequently, rotation of the hollow handle adjustably expands the expandable sleeve, forming a tight fit between the tapered shaft and the interior of the hollow handle. The preferred movement assembly is a threaded nut that engages a threaded stud located at a lower end of the tapered shaft. An antirotation fastener is preferably used to prevent the hollow handle from thereafter rotating during use of the tool.Type: GrantFiled: November 7, 1994Date of Patent: January 16, 1996Assignee: Harrow Products, Inc.Inventors: Alex Thompson, William E. Gagner
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Patent number: 5469626Abstract: An improved cutting tool, such as scissors, shears, and the like, having two cooperating members that are interconnected so as to be pivotally movable, with respect to each other and about a connection point, between an open position and a closed position. The members each have a handle at their one end, a shank portion disposed between the handle and the connection point, and a blade portion disposed between the connection point and their other end. Each of the shank portions have an inside face, an outside face, and a leading edge that faces the other leading edge when the members are in their open position. A bearing ramp is formed on the inside face of one of the shank portions and has a first end adjacent the leading edge of the one shank portion and a second end away from the leading edge.Type: GrantFiled: April 23, 1993Date of Patent: November 28, 1995Assignee: Vogel Brothers CorporationInventors: David S. Vogel, Donald E. Vogel
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Patent number: 5459929Abstract: The present invention relates to hinged tools such as scissors, shears, pruners, or the like, having a force applying end with formed handles and an opposed working end consisting of a pair of blades disposed across a hinged joint through which a force may be transmitted. In these tools the handles, which are formed integrally with the hinge, are provided with ridge support in the form of heel elements to establish suitable contact between the blades.Type: GrantFiled: May 23, 1994Date of Patent: October 24, 1995Assignee: Fiskars Oy AbInventors: Erkki O. Linden, Veikko Makipelto
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Patent number: 5440813Abstract: An improved scissors includes a pivot joint having a pivot axis, a first blade member having a first cutting edge and a longitudinal axis, and a second blade member having a second cutting edge. The second blade member is pivotally coupled by the pivot joint to the first blade member with the first cutting edge adjacent and in contact with the second cutting edge. Moreover, the pivot joint is coupled to the first blade member to incline the first blade member relative to the second blade member and the pivot joint, so that the inclination of the first blade member produces a load transverse to the pivot axis of the pivot joint, which corresponds to the direction along the longitudinal axis of the first blade member to produce and determine the tension and friction along the cutting edges. The load transverse to the pivot axis may be oblique to the pivot axis of the pivot joint and may also be inclined between 0.1 to 10.Type: GrantFiled: June 4, 1993Date of Patent: August 15, 1995Inventor: Scott H. Roskam
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Patent number: 5430941Abstract: A pair of scissors with replaceable blades, comprising a pair of blades, a pair of grips each having a blade-connecting mechanism which permits the blades to be replaceably engaged with the grips includes a pair of locking members, a pair of controlling push blocks, a pair of cover members and a pair of springs. Each of the blades has a lower end portion grips formed with reverse hook-like teeth and each of the grips is formed with an engaging recess for receiving the lower end portion of the blade. A projecting block and a notch are respectively formed on upper and lower sections of inner side of the recess. A slide channel is formed beside the notch and a rib is formed on an outer and a lower sides of the recess. Three locking teeth are formed on an outer side of each locking member and a slant triangular cut is formed on an inner lower corner of the locking member.Type: GrantFiled: July 12, 1994Date of Patent: July 11, 1995Assignee: Shung Wei Industrial Co., Ltd.Inventor: Michael Lin
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Patent number: 5426857Abstract: A hand tool for cutting, such as a pair of snips, includes a pair of opposed elongated members, each member comprising a jaw at a front end portion thereof, a handle at a rear end portion thereof, and a midportion where the members cross over each other. A pivot unites the midportions for scissor-like movement of the handles and jaws about the pivot, and a spring biases the handles and jaws to an open position. A releasable locking mechanism is provided to secure the handles and jaws in a closed position. According to the invention, at least one of the members includes a metal plate having a forwardly extending blade which comprises one of the jaws and a rearwardly extending tang. The handles, pivot and locking mechanism are each made of a moldable material molded onto the metal plate, such that one of the handles is molded onto the tang of the metal plate, and the pivot extends through a central hole in the metal plate.Type: GrantFiled: March 25, 1994Date of Patent: June 27, 1995Assignee: Fiskars Oy AbInventor: Erkki O. Linden
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Patent number: 5421090Abstract: A scissors includes two blades pivoted together in the middle, each blade having a handle unit at one end and a cutting unit at an opposite end, wherein the cutting unit of either blade has a respective wave-like cutting edge, the wave-like cutting edges of the two cutting units holding down the thing to be cut when they are moved to slide past each other.Type: GrantFiled: February 8, 1994Date of Patent: June 6, 1995Assignee: Ding Wei Enterprises, Inc.Inventor: Lian-Jen Chiou
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Patent number: 5419047Abstract: Plier-type cutters for cutting metal objects having a pair of plier halves which are each of one piece construction and made of a hardenable stainless steel. Each plier half has a cutting edge hardened to a cutting hardness suitable for cutting the metal object, such as an orthodontic metal appliance, without fracturing during normal use. Each plier half has at least one fracture sensitive portion, excluding its cutting edge, which would be susceptible to fracturing during normal use if hardened to the cutting hardness. Each fracture sensitive portion has a working hardness which is sufficiently lower than the cutting hardness to substantially limit, if not eliminate, the likelihood of fracture during normal use.Type: GrantFiled: May 14, 1993Date of Patent: May 30, 1995Assignee: Ormco CorporationInventor: Farrokh Farzin-Nia
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Patent number: 5419048Abstract: A three bladed cutting tool (10) with a middle blade (16) provided between the other two blades (12,14). The middle blade (16) is pivotal relative to the other two blades (12,14). A thin ribbon of swarf (102) is removed from the sheet material (100) in a cutting operation. The cutting tool (10) discharges this swarf (102) from the cutting zone in a direction substantially transverse to the cutting direction. An angled cutting edge (68, 68') on the middle blade (16) directs the swarf (102) out through an opening (72) provided in at least one of the other two blades (12,14).Type: GrantFiled: April 22, 1994Date of Patent: May 30, 1995Inventors: Terence P. Horgan, Jan L. Roth
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Patent number: 5377412Abstract: A soft touch scissors including a first or lower blade assembly having a handle and a blade having a tang molded in the handle and a second or upper handle assembly having a handle and a blade having a tang molded in the handle, the blade assemblies being pivotally connected, and biased by a spring to an open position, a rib on the top of the lower handle assembly and a rib on the bottom of the upper handle assembly located in a position to engage the rib on the lower handle assembly and a latch slidably mounted on the upper handle assembly for movement into engagement with the rib on the lower handle assembly to lock the handle assemblies in a closed position.Type: GrantFiled: November 17, 1992Date of Patent: January 3, 1995Assignee: Fiskars Oy AbInventors: Robert T. Schofield, Craig H. Melter, Douglas J. Birkholz
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Patent number: 5375330Abstract: Hand held fluid operated shears comprises first and second blades. The blades are pivotally connected for movement of one relative to the other about an axis. The shears include a thumb-receiving handle and a finger-receiving handle. One of the handles is supported for pivoting about the axis independently of both blades. The other handle is fixed relative to the first blade. A fluid actuator is coupled between the fixed handle and the second blade. A fluid operated servo mechanism is controlled by the second blade and the pivoted handle to control operation of the fluid actuator to move the second blade relative to the first blade in coordination with the movement of the pivoted handle. The rate of movement of the second blade decreases relative to the rate of movement of the pivoted handle as the second blade moves from an open position at an acute angle relative to the first blade to a closed position where it overlies the first blade.Type: GrantFiled: October 6, 1993Date of Patent: December 27, 1994Assignee: Bettcher Industries, Inc.Inventor: Raymond J. Herrmann
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Patent number: 5341573Abstract: The present invention relates to pivoted tools such as scissors, pliers, shears, and the like. More particularly, this invention is concerned with pivoted tools having a pair of elongated members and a pivotable joint. The pivotable joint comprises a pair of registering apertures cooperating with a self-compensating unitary pivot member. The pivot member, which is formed when the tool is in closed registered configuration, conforms with the apertures and engages the interior surfaces thereof.Type: GrantFiled: November 30, 1992Date of Patent: August 30, 1994Assignee: Fiskars Oy AbInventors: Erkki O. Linden, Karl S. Ronnholm, Carl-Olof J. Holm
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Patent number: D367415Type: GrantFiled: March 21, 1995Date of Patent: February 27, 1996Inventor: Yun S. Wu