Reciprocating Blade Patents (Class 30/241)
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Patent number: 10790648Abstract: Embodiments disclosed herein include devices and methods for gripping and stripping an electrical wire. The tool may include a body, having a first portion with a curved tip, and a second portion. The tool may also include a closing mechanism mounted on the body, and an elongated member having a protruding tip and coupled to the closing mechanism. The elongated member can slidably move towards the second portion, causing the protruding tip to move away from to the curved tip, with respect to movement of the closing mechanism for receiving at least a portion of an electrical wire inserted into the opening, or move towards the first portion, causing the protruding tip to move toward the curved tip, with respect to another movement of the closing mechanism for gripping the received portion of the electrical wire.Type: GrantFiled: May 9, 2018Date of Patent: September 29, 2020Assignee: NONCONDUCTIVE TOOL COMPANY, LLCInventor: Warren Tarbell
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Patent number: 10279402Abstract: A cutting device includes a mounting head, cutting tools and a bracing element. Each tool has a cutting edge having a recess with a substantially semi-circular contour for accommodating a portion of a workpiece. An engaging protrusion extends into each recess and has a foot circumferential angular range from 20 to 90 degrees. The engaging protrusions project into the recess by ? to 9/10 of its radius. The bracing element extends from one tool and has a surface for supporting the workpiece.Type: GrantFiled: June 11, 2013Date of Patent: May 7, 2019Assignee: GUSTAV KLAUKE GMBHInventor: Egbert Frenken
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Patent number: 9955991Abstract: A device (1) for treatments of endoscopic resection/removal of tissues, includes: a handpiece apt to be held by an user; an external tubular element (3) having a proximal end, a distal end and a cutting aperture disposed at the distal end; an internal tubular element (4) apt to be pivotally housed in the external tubular element (3) and having a proximal end, a distal end and a cutting tip at its distal end; guide element (5) for rotating and/or oscillating the internal tubular element (4) with respect to the external tubular element (3); the guide element including an electric motor. At least one between the handpiece (2) and the guide element (5) is disposable.Type: GrantFiled: June 14, 2010Date of Patent: May 1, 2018Assignee: FRII S.A.Inventor: Raffaele Riva
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Patent number: 9814483Abstract: A catheter device with a cutting structure or means on the distal portion is disclosed, along with a medical procedure for using the device. The catheter is configured in such a way as to create a permanent interatrial aperture in the heart, including creating a permanent interatrial hole and/or removing tissue.Type: GrantFiled: June 12, 2015Date of Patent: November 14, 2017Inventor: Gil M. Vardi
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Patent number: 9321095Abstract: Apparatuses and methods for cutting a sample piece, having a shape and an outer dimension, out of a porous substrate, comprising: a puncher having an outermost dimension at a punch head; a stripping sleeve; a die having an innermost dimension that is larger than the outermost dimension of the punch head; and a fixture that holds the die in a fixed position relative to the puncher and stripping sleeve.Type: GrantFiled: June 30, 2010Date of Patent: April 26, 2016Assignee: GENERAL ELECTRIC COMPANYInventor: Weston Blaine Griffin
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Patent number: 8943699Abstract: The invention relates to a cutting device providing a main frame body, at least one stationary cutting element disposed on the main frame body, a drive system disposed on the main frame body, in particular in the form of a fluid cylinder, and a cutting blade drivingly connected to the drive system and guided in its movement on the main frame body, which co-operates with the stationary cutting element. The main frame body and/or the drive system is made from an essentially light metal or a light metal alloy with a density of less than 5000 kg/m3, in particular less than 3000 kg/m3.Type: GrantFiled: October 15, 2009Date of Patent: February 3, 2015Assignee: Weber-Hydraulik GmbHInventors: Kurt Strohmeier, Peter Herwig
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Patent number: 8931180Abstract: A knife according to the present disclosure includes a housing and a blade. The blade includes a blade edge adapted to engage a material, and the blade is coupled to a blade shuttle. The blade and blade shuttle are substantially enclosed within the housing when the blade shuttle is in a retracted position, and the blade is extended from the housing when the blade shuttle is in an extended position. The blade shuttle is adapted to be conveyed to the retracted position based on the blade receiving a force directed substantially perpendicular to the blade edge.Type: GrantFiled: November 12, 2012Date of Patent: January 13, 2015Assignee: ADCO Industries—Technologies, L.P.Inventors: Raymond E. Davis, Clifton Glenn Hampton
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Publication number: 20140259689Abstract: A concaved cutter head assembly for hair trimmer comprising a fixed blade, a movable blade and a slot support fixed to the fixed blade; the fixed blade and the movable blade comprise a fixed blade toothed edge and a movable blade toothed edge respectively; the movable blade toothed edge is driven to move reciprocally along slots on the slot support with respect to the fixed blade toothed edge to form a cutting surface; a fixed blade seat is also provided, whereas one end of which is provided with a protective cover; a frontal edge of the protective cover is positioned in front of the fixed blade toothed edge; the fixed blade toothed edge, the movable blade toothed edge, the slots and the frontal edge of the protective cover are all concave arcs, and all these concave arcs are concentric with respect to one another.Type: ApplicationFiled: February 20, 2014Publication date: September 18, 2014Applicant: SPECIALIFE (ZHUHAI) CO., LTD.Inventor: Tung Yan LAU
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Publication number: 20140053412Abstract: A personal grooming apparatus includes a handle defining a central longitudinal axis, first and second blade sets mountable relative to the handle with each blade set including a stationary blade member and a movable blade member, and a drive mechanism disposed within the handle and operatively coupled to the movable blade members of the first and second blade sets. The drive mechanism is operable to cause corresponding reciprocating movement of the movable blade members relative to the stationary blade members of each of the first and second blade sets. The second blade set may be releasably mountable to said first blade set. The first and second blade set each may include a housing for at least partially accommodating respective stationary and movable blade members.Type: ApplicationFiled: August 21, 2012Publication date: February 27, 2014Inventors: Vito Carlucci, Sergio Lopes Fernandes da Costa
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Patent number: 8539678Abstract: A device for a motor driven tool such as a pole hedge trimmer, a pole saw or the like. The tool includes a drive unit that via a shaft tube is connected to a cutting unit. The cutting unit is turnably secured at the shaft tube by the device which is a turnable connection, wherein the cutting unit is movable between a range of at least two working positions and a transport position. The cutting unit is provided with one or several movable cutting elements and the tool is provided with locking structure for locking the movement of the cutting elements when the cutting unit is in the transport position.Type: GrantFiled: April 28, 2005Date of Patent: September 24, 2013Assignee: Husqvarna ABInventors: Goran Dahlberg, Bengt Gustavsson
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Publication number: 20130074346Abstract: An edge band cutting device comprises: a fixed unit including a base plate having an opening, and a pressing plate connected to and perpendicular to the base plate; a moving unit including a movable plate movable on the base plate; a cutter unit including a main cutter disposed on the base plate, and an auxiliary cutter disposed on the movable plate, a space between the main and auxiliary cutters being aligned with the opening so as to allow an edge band to extend through the opening and between the main and auxiliary cutters; and an adjusting unit including an adjusting member disposed on the fixed unit, movable to contact the main cutter, and having an abutting surface facing away from the main cutter for abutting against a start end of the edge band.Type: ApplicationFiled: September 22, 2011Publication date: March 28, 2013Inventor: Chin-Chi LIN
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Patent number: 8141465Abstract: In accordance with a preferred embodiment of the present disclosure, a wire bundle wrap cutter is provided for cutting wire bundle wraps. The wire bundle wrap cutter generally comprises a shaft with a cutting end, and a handle end, a cutting head perpendicular to the cutting end, and a handle with a trigger at the handle end. The cutting head defines a channel between a tongue and a blade enclosure. There is a cutting blade disposed in a slot in the blade enclosure which is movable from an enclosed position wherein the cutting edge is inside the blade enclosure to an activated position wherein the cutting edge is moved toward the tongue portion to cut a wire bundle wrap placed in the U-shaped channel.Type: GrantFiled: February 17, 2009Date of Patent: March 27, 2012Assignee: The Boeing CompanyInventor: Reynaldo P. Reyes
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Patent number: 8113096Abstract: A method for assembling a tool for cutting structural materials includes the steps of providing a pair of handles, each handle having a connector plate. A drive pin is pivotally coupled to the connector plates, the drive pin being movable as the handles are pivoted. A detachable cutting head includes a body with a cavity having a pair of opposing cavity openings, and further includes a channel to receive structural material workpieces. A cutting plate is slidably disposed in the cavity. The cutting head is selectably coupled to the handles and the cutting plate moves slidably in the body as the handles are pivoted, cutting a structural material workpiece inserted into the channel of the body, a cut portion of the inserted structural material workpiece being ejectable through the first cavity opening.Type: GrantFiled: December 11, 2009Date of Patent: February 14, 2012Assignee: Midwest Tool and Cutlery CompanyInventors: Todd Retterer, Donald Drown
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Publication number: 20120017446Abstract: The invention relates to a cutting device (1) comprising a main frame body (2), at least one stationary cutting element (20) disposed on the main frame body (2), a drive system (4) disposed on the main frame body (2), in particular in the form of a fluid cylinder (7), and a cutting blade (5) drivingly connected to the drive system (4) and guided in its movement on the main frame body (2) which co-operates with the stationary cutting element (20). The main frame body (2) and/or the drive system (4) is made from an essentially light metal or a light metal alloy with a density of less than 5000 kg/m3, in particular less than 3000 kg/m3.Type: ApplicationFiled: October 15, 2009Publication date: January 26, 2012Applicant: WEBER-HYDRAULIK GMBHInventors: Kurt Strohmeier, Peter Herwig
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Publication number: 20110146085Abstract: A stud punch tool includes a lower frame, an upper handle pivotally attached to the lower frame, and a punching assembly attached to the lower frame and to the upper handle. The lower frame includes a body portion, a pair of ears extending upwardly therefrom, and a head portion and a handle portion extending from the body portion. The upper handle is attached to the ears. The punching assembly is connected to the head portion and is connected to the upper handle proximate to the connection of the upper handle to the ears. The upper handle can be gripped by a user for movement relative to the lower frame to cause the punching assembly to punch a hole in an associated workpiece.Type: ApplicationFiled: December 21, 2009Publication date: June 23, 2011Inventors: Wilbur Keith Moffatt, John T. Hagan
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Patent number: 7913399Abstract: A blade set for hair clipper which has a lower fixed blade, an upper fixed blade, a movable blade assembly and a blade holder. The movable blade assembly is disposed in between the lower fixed blade and the upper fixed blade and is connected to a driving means driven by a driving unit in the hair clipper to reciprocate laterally relative to the lower fixed blade and the upper fixed blade in an operating condition. A third toothed front edge is provided at a front end of the movable blade assembly. A lower portion of the third toothed front edge cooperates with an upper portion of the first toothed front edge to define a first cutting surface. An upper portion of third toothed front edge cooperates with a lower portion of the second toothed front edge to define a second cutting surface.Type: GrantFiled: January 14, 2007Date of Patent: March 29, 2011Assignee: Specialife Industries LimitedInventor: Tung Yan Lau
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Patent number: 7861414Abstract: A cutting tool having a clamp mechanism, a holding device, and a cutting device disposed on one of the clamp mechanism and holding device is disclosed, whereby the clamp mechanism and the cutting device cooperate to cause a severing of a work piece by the cutting device.Type: GrantFiled: December 12, 2007Date of Patent: January 4, 2011Inventor: Thomas D. Kern
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Publication number: 20100229396Abstract: A hand-held hair cutting appliance has a housing, a first cutting blade, and a second cutting blade. The first cutting blade is capable of reciprocating movement relative to the housing. A drive assembly is operatively connected to the first cutting blade for drivingly reciprocating the first cutting blade relative to the housing such that the first cutting blade is moveable in a side to side direction relative to the housing and the second cutting blade. A counter weight is adapted for reciprocating movement relative to the housing in response to reciprocating movement of the first cutting blade. The counter weight has at least one of a mass and a location relative to the first cutting blade to thereby at least partially counter-balance the reciprocating movement of the first cutting blade.Type: ApplicationFiled: May 27, 2010Publication date: September 16, 2010Applicant: ROVCAL, INC.Inventor: Thomas Richard Bednar
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Publication number: 20100095533Abstract: A power tool includes an inner housing (50) at least partially housed within and spaced from an outer housing (30). The inner housing supports a tool (102, 302), such as a pair of shear blades, and houses a motor (80) that drives the tool. The outer housing includes a grip (14, 18) to be grasped by a user. At least one vibration insulator (71-75) can be disposed between the inner housing and the outer housing and in a manner such that the vibration insulator(s) is(are) protected by the outer housing. An intake opening (60a, 60b) and exhaust opening (64a, 64b) can be formed in the inner housing and can be shielded by respective portions of an inner surface of the outer housing.Type: ApplicationFiled: October 13, 2009Publication date: April 22, 2010Applicant: MAKITA CORPORATIONInventors: Yuji Takahashi, Sadaharu Oki, Tadayoshi Tsuchiya, Takahiro Kamiya
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Patent number: 7690284Abstract: The object of this invention is to provide a safe lancet disposer which prevents a lancet, having been used for blood collection, from being reused, thus preventing secondary infection and cross infection. The safe lancet disposer (100) of the present invention includes a cutting unit (110) which cuts an end of a needle of a lancet, a receiving unit (140) which is disposed under the cutting unit (110) to receive therein the cut end of the needle, and an operating unit (170) which is rotatably mounted to the receiving unit (140) and operates the cutting unit (110). The cutting unit (110) has an insertion plate (112), a support plate (118) and a cutting plate (128). The receiving unit (140) has a receiving housing (142) and a receiving container (160). The operating unit (170) has an operating lever (172).Type: GrantFiled: April 26, 2004Date of Patent: April 6, 2010Inventors: Eun Jong Cha, Mi Sook Park, Kyung Ah Kim
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Patent number: 7673392Abstract: An apparatus for clipping a protrusion of material is provided. The protrusion may, for example, be a bolt head, a nut, a rivet, a weld bead, or a temporary assembly alignment tab protruding from a substrate surface of assembled components. The apparatus typically includes a cleaver having a cleaving edge and a cutting blade having a cutting edge. Generally, a mounting structure configured to confine the cleaver and the cutting blade and permit a range of relative movement between the cleaving edge and the cutting edge is provided. Also typically included is a power device coupled to the cutting blade. The power device is configured to move the cutting edge toward the cleaving edge. In some embodiments the power device is activated by a momentary switch. A retraction device is also generally provided, where the retraction device is configured to move the cutting edge away from the cleaving edge.Type: GrantFiled: December 19, 2006Date of Patent: March 9, 2010Assignee: Babcock & Wilcox Technical Services Y-12, LLCInventor: Fariborz M. Bzorgi
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Patent number: 7637017Abstract: A clipper with a cutting head and having an actuator. The heads contain a structural profile-specific channel into which structural material having the profile for which the head is designed is inserted and clipped. The head is designable for various structural profiles and, in one embodiment, multiple heads are interchangeably operated by a single actuator. In the interchangeable embodiment, a release button having two sections of differing diameters is disposed in the actuator and communicates with a connector slot of the head to permit attachment and detachment of the head from the actuator. The structure-specific clipper increases the quality of cuts and decreases the amount of deformation caused to the material. The clipper reduces buildup of waste material by ejecting cuttings from the head upon clipping.Type: GrantFiled: March 7, 2007Date of Patent: December 29, 2009Assignee: Midwest Tool and Cutlery CompanyInventors: Todd Retterer, Donald Drown
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Publication number: 20090255606Abstract: A land clearing device for use in conjunction with a hydraulic boom crane includes a body (2) which can be connected to the head of the hydraulic boom crane (1), a hydraulic motor (3,4), supported on the body, and a blade (5), operated by the hydraulic motor. In accordance with the invention, two elongated blade guides (6) are supported on the body (2), with two blade panels (7), reciprocating at the same pace and in opposite directions, supported between the blade guides, which blade panels are connected to the hydraulic motor (3,4) and both include knife-like blade rows (8), extending flush with each other in opposite directions.Type: ApplicationFiled: April 27, 2007Publication date: October 15, 2009Applicant: MENSE OYInventor: Seppo Ensio Mentula
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Publication number: 20080301950Abstract: A cutting tool includes a frame, a shaft, a cutter and a cam. The shaft is rotatable about an axis. The cutter is coupled to the shaft such that rotation of the shaft about its axis causes rotation of the cutter about the shaft's axis. The cam is positioned around the shaft such that the cam contacts the frame upon rotation of the shaft. The cam has a cam surface which is distanced away from the axis of the shaft a varying amount such that contact of the cam with the frame upon rotation of the shaft causes the shaft, and thus the cutter, to reciprocate in a generally transverse direction relative to the axis of the shaft.Type: ApplicationFiled: June 2, 2008Publication date: December 11, 2008Inventor: JAMES ROBERT HARGER
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Patent number: 7461457Abstract: An apparatus and method are disclosed for cutting a corner post. The apparatus includes a blade disposed within the apparatus. A piston is coupled to the blade for actuating the blade. A trigger switch is coupled to the piston. The piston causes the blade to actuate when the trigger is depressed. The apparatus includes an opening through the apparatus for receiving the corner post through the opening. The blade is actuated to move through the opening and cut through the corner post.Type: GrantFiled: December 16, 2005Date of Patent: December 9, 2008Assignee: International Business Machines CorporationInventors: Ivan Neil Liverman, Robert Tucker Sanders, Eric Allen Stegner, Robert William Stegner
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Publication number: 20080052915Abstract: A hair clipper includes a comb-like fixed blade and movable blade having a plurality of blade pieces arranged in parallel. The fixed blade and the movable blade is overlapped with each other and the movable blade is reciprocatively slid with respect to the fixed blade in an arrangement direction of the blade pieces. Each blade piece of the movable blade has blade edges formed at both sides thereof, each blade edge being formed with a leading rectilinear part and a basal rectilinear part; the leading rectilinear part and the basal rectilinear part are inclined with respect to the blade edges formed at both sides of each blade piece of the fixed blade by an acute included angle ?; and each blade edge of the movable blade has a rake surface facing an opposite side to the fixed blade.Type: ApplicationFiled: August 28, 2007Publication date: March 6, 2008Applicant: Matsushita Electric Works, Ltd.Inventors: Makoto Fukutani, Toshio Ikuta
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Publication number: 20080010837Abstract: A pruning device that includes a blade, a housing for the blade, a piston-and-cylinder unit, and an elongated, rigid member connecting the piston-and-cylinder unit to the blade. A tank containing compressed air operates the piston-and-cylinder unit which, in turn, drives the blade out of an inoperative position to cut an object. The blade is completely inside the housing in its inoperative position.Type: ApplicationFiled: July 12, 2006Publication date: January 17, 2008Inventor: William Weissenborn
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Patent number: 7313868Abstract: In a cutoff tool, a hood is arranged to overlap a distal end portion of a cutting blade, and a distal end portion of the hook is arranged to protrude from a toothed portion of the cutting blade. When the cutting blade retracts farthest in a uniaxial direction, the distal end portion of the cutting blade is arranged to overlap the hook in a plan view, wherein a space for holding an object to be cut is formed between the toothed portion of the cutting blade and the distal end of portion of the hook. When the cutting blade advances farthest in a uniaxial direction, the distal end portion of the cutting blade is arranged not to protrude from the hook to the outside.Type: GrantFiled: November 15, 2005Date of Patent: January 1, 2008Assignee: Suzuki Motor CorporationInventor: Norifumi Izumo
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Publication number: 20070209215Abstract: A clipper with a cutting head and having an actuator. The heads contain a structural profile-specific channel into which structural material having the profile for which the head is designed is inserted and clipped. The head is designable for various structural profiles and, in one embodiment, multiple heads are interchangeably operated by a single actuator. In the interchangeable embodiment, a release button having two sections of differing diameters is disposed in the actuator and communicates with a connector slot of the head to permit attachment and detachment of the head from the actuator. The structure-specific clipper increases the quality of cuts and decreases the amount of deformation caused to the material. The clipper reduces buildup of waste material by ejecting cuttings from the head upon clipping.Type: ApplicationFiled: March 7, 2007Publication date: September 13, 2007Applicant: CLARIDON TOOL & DIE, INC.Inventors: TODD RETTERER, DONALD DROWN
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Patent number: 7225711Abstract: A cutting die head assembly for nibbler tools which enables the die head to be independently rotatably manipulated by the user's hand independent of its axial connection with the die body to provide for angular and/or circular cuts in areas of limited space use and thus avoiding the necessity of moving the nibbler body and attached drill in a similar path.Type: GrantFiled: January 15, 2004Date of Patent: June 5, 2007Inventor: Joseph M. Strong
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Patent number: 7171754Abstract: A blade or punch assembly for double-ended nibbler tools which affords easier removal by in part providing a blade having central portions of a single diameter equal to or slightly less than the composite bore through which it is adapted to extend.Type: GrantFiled: February 2, 2006Date of Patent: February 6, 2007Inventor: Joseph M Strong
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Patent number: 7047613Abstract: A blade or punch assembly for double-ended nibbler tools which affords easier removal by in part providing a blade having central portions of a single diameter equal to or slightly less than the composite bore through which it is adapted to extend.Type: GrantFiled: January 15, 2004Date of Patent: May 23, 2006Inventor: Joseph M. Strong
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Patent number: 7017271Abstract: A cutting device having a head member having a movable cutting blade positioned therein, first and second legs pivotally mounted on said head member, a connector connecting the first leg, the cutting blade, and the second blade, wherein the connector and cutting blade are movable within a slot in the head member to bring the cutting blade into cutting engagement with a shield connected to said head member when the legs are moved into a closed position.Type: GrantFiled: December 18, 2001Date of Patent: March 28, 2006Inventors: Kevin L. Parsons, James Boda
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Patent number: 6938531Abstract: A reciprocal-movement power tool includes a movable blade reciprocally movably provided on a main body. A receiving plate that supports an angle iron to be cut is supported on the main body at a position in front of the movable blade. The movable blade is fixed on a front tip of a rod-shaped shuttle screw. The shuttle screw moves back and forth in the axial direction within a tubular screw shaft. The screw shaft is carved with a female screw portion and is rotated through a joint spindle that is deceleratingly rotated upon rotation of the motor through a deceleration means. The shuttle screw has a male screw portion that is threadingly engageable with the female screw portion.Type: GrantFiled: February 2, 2001Date of Patent: September 6, 2005Assignee: Hitachi Koki Co., Ltd.Inventors: Chikai Yoshimizu, Masao Kikumoto, Takahiko Shimada
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Patent number: 6769341Abstract: A cutting device has a body, a driving device, a moving base, a head and a cutting rod. The driving device is mounted on the body to actuate the moving base to move relative to the body. The head extends from the body and has a central hole defined through the head. A notch and an exhaust hole are defined in the bottom of the head and communicate with the central hole. The cutting rod is moveably received in the central hole in the head and is attached to the moving base. The cutting rod has a cutting recess defined around the cutting rod. Accordingly, the metal waste generated during the cutting process is kept from flying about and injuring the user, so the safety of using the cutting device is improved. In addition, the cut metal sheet can be kept from shake or vibration.Type: GrantFiled: September 27, 2002Date of Patent: August 3, 2004Assignee: Patta International LimitedInventor: Cheng-Yen Wu
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Publication number: 20040143972Abstract: A blade or punch assembly for double-ended nibbler tools which affords easier removal by in part providing a blade having central portions of a single diameter equal to or slightly less than the composite bore through which it is adapted to extend.Type: ApplicationFiled: January 15, 2004Publication date: July 29, 2004Inventor: Joseph M. Strong
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Patent number: 6754959Abstract: Cartridge-actuated cutter (10), held in a single hand, generally includes frame (20) and barrel assembly (40). Frame (20) includes grip (26), trigger (30) firing pin (28), and pivot mount (35). Barrel assembly (40) generally includes barrel (41), piston (70), and extractor (80). Barrel (41) includes anvil (52), cable receiving recess (55), breech bore (61) for receiving a cartridge, and longitudinal bore (64). Piston front end (74) includes chisel (75) and stop (76). Detonation of the cartridge drives piston (70) forward from a cocked position to cut a cable in recess (55) against anvil (52). Extractor (80) slides rearward to simultaneously eject a cartridge and cock piston (70). Stop (76) impacts anvil (52) simultaneously with chisel (75). Anvil (52) is repositionable so as to present different surfaces to chisel (75). Barrel (41) includes second pivoting mount (45) for repositioning recess (55) relative to frame (20).Type: GrantFiled: April 15, 2003Date of Patent: June 29, 2004Inventors: William E. Guiette, III, Charles W. Arnold
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Patent number: 6684679Abstract: A pneumatic metal-work tool includes a punch assembly mounted on the front end of a hydraulic push-rod assembly. The hydraulic push-rod assembly has a hydraulic chamber mounted with a piston rod. One end of the piston rod is mounted in a center hole of a piston. When the control valve of the metal-work tool has a high pressure air entered the casing to drive the piston to move, the pressure air will be converted into a hydraulic force via the hydraulic chamber so as to have the hydraulic push rod provide a punch force, and to have a metal sheet in the opening of the punch assembly punched with a hole.Type: GrantFiled: May 31, 2002Date of Patent: February 3, 2004Inventor: Yu-Fu Hsieh
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Patent number: 6671966Abstract: A hydraulically and/or pneumatically actuated cutting tool is provided having a housing with a piston assembly slidably disposed between a fluid inlet and a fluid outlet. The piston assembly comprises a seal which is operable between two positions. In a first position the seal produces a substantially water-tight seal between the piston and the interior surface of the housing. As a result, fluid entering the chamber through the fluid inlet advances the piston assembly toward the fluid outlet. In a second position a gap is formed between the seal and the interior surface of the housing such that fluid communication is established between the fluid inlet and the fluid outlet. As the fluid is removed from the housing through the fluid outlet, a spring biases the piston assembly back to its original resting position.Type: GrantFiled: October 23, 2001Date of Patent: January 6, 2004Inventor: John B. Lewis
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Publication number: 20030074796Abstract: A hydraulically and/or pneumatically actuated cutting tool is provided having a housing with a piston assembly slidably disposed between a fluid inlet and a fluid outlet. The piston assembly comprises a seal which is operable between two positions. In a first position the seal produces a substantially water-tight seal between the piston and the interior surface of the housing. As a result, fluid entering the chamber through the fluid inlet advances the piston assembly toward the fluid outlet. In a second position a gap is formed between the seal and the interior surface of the housing such that fluid communication is established between the fluid inlet and the fluid outlet. As the fluid is removed from the housing through the fluid outlet, a spring biases the piston assembly back to its original resting position.Type: ApplicationFiled: October 23, 2001Publication date: April 24, 2003Applicant: Dr. Calvin R. MacKayInventor: John B. Lewis
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Patent number: 6374498Abstract: A portable pruner comprises a shearing part, a transmission part and a driving part. By using the compound casing tube to achieve rigid axial transmission, the pruner is simple and handy in construction, and accurate and easy to pruning. It can be disassembled into several portions easy to carry and assembled at different lengths depending on the requirement, its effects of cutting are dependable, and so the portable pruner is suitable for pruning branches of various heights in extensive orchards and gardens, while ensuring the safety of the operation. At the same time, the efficiency of pruning trees is improved considerably.Type: GrantFiled: April 26, 2000Date of Patent: April 23, 2002Inventor: Changzhe Liu
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Patent number: 6349474Abstract: A cable cutter for cutting a cable by using an explosive event is provided. The cable cutter includes a main body and an initiator assembly connected to the main body. The main cutter includes a cutterjaw and a receptacle having an opening accommodating a cable, a longitudinal bore formed in the housing and connected to the receptacle and having an inner opening and an outer opening, a cutter blade having a cutting edge facing the inner opening and a base facing the outer opening, being inserted into the bore of the receptacle, and slidably moving toward the cutter jaw within the bore of the receptacle to cut a cable disposed within the receptacle and between the cutter jaw and the cutting edge of the cutter blade. The initiator assembly includes a coupler, a passageway formed within the coupler, a cap covering having a hole connected to the coupler, and an explosive material and detonator are inserted through the hole in the cap into the passageway.Type: GrantFiled: May 31, 2000Date of Patent: February 26, 2002Assignee: The United States of America as represented by the Secretary of the NavyInventor: Bruce D. Jordan
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Patent number: 6314648Abstract: A hair clipper unit that includes edger blades on one end and taper blades on the other end. The clipper system allows a stylist to rapidly switch operation between the two sets of clipper blades and includes a power cord directing assembly including a power cord that extends from a center side surface of a motor housing and a cord securing clip on either side of the cord housing exit point for holding the cord in the proper orientation during use. The dual blade clipper unit also includes two separate drive motors, one for each set of clipping blades, and a drive motor cooling system to further reduce the heat generated by operation of the clipper unit.Type: GrantFiled: September 1, 1999Date of Patent: November 13, 2001Inventor: Daniel J. Hillebrandt
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Patent number: 6295991Abstract: A cigar cutter and lighter storage device for cutting off an end of a cigar is disclosed. The device has a tubular body with a first end for receiving a disposable lighter and a collar which removably secures the lighter within the body. A cutter element is secured in a second end of the tubular body. The cutter element has first and second opposed side elements and a cutting member, or knife, pivotally engaged between the first and second side members. The first and second side members define an opening for receiving the end of the cigar. The cutting member is pivotally rotated from a first, or open, position to a second, or closed, position in an arcuate manner through the opening, whereby the end of the cigar is cut.Type: GrantFiled: November 29, 1999Date of Patent: October 2, 2001Inventor: William M. Emery
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Publication number: 20010002565Abstract: The invention is a tool for shortening threaded fasteners which does not compromise the structural integrity of the cut end or its surrounding threading. The device comprises a c-shaped plate with blade retaining grooves having a plurality of threaded bores sized to match common commercially available fastener diameters, and a blade having a striking end and a cutting edge with an angle of preferably less than 30°. Fasteners to be cut are rotatably threaded in a clockwise direction through the threaded bores so that the portion to be cut extends through the plate. The blade is then inserted into the blade retaining grooves with the cutting edge resting on top of the uppermost fastener to be shortened. Pressure is applied to the striking end with a striking tool such as but not limited to a hammer, which causes the blade to move downward while severing the extended portion of the fasteners to be cut.Type: ApplicationFiled: January 8, 1999Publication date: June 7, 2001Inventor: ROBERT E. KACHERGIUS
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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: 5956801Abstract: An improved articulated wiper blade assembly includes a wiper blade sub-assembly having a female and male spline portions, and an internal stake located within the spline channel for preventing longitudinal movement of the male spline within the female spline channel while still permitting journaled rotation of the male spline within the female spline. The stake is preferably located adjacent to one end of the wiper blade sub-assembly, whereby the wiper blade sub-assembly can be cut at the opposing end thereof to a shorter length without affecting the stake. The stake extends inwardly from the female spline channel into a transverse notch preformed in the body of the male spline and engages the inner walls of the notch to prevent longitudinal movement in either direction. However, the notch still permits rotation of the male spline around the stake. Additional staked fingers and corresponding notches can be utilized to further prevent longitudinal movement of the male spline.Type: GrantFiled: August 6, 1997Date of Patent: September 28, 1999Assignee: New-View Windshield Wiper L.P.Inventors: Peter H. Jeffer, Michel Fernandes
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Patent number: 5819417Abstract: A tool for cutting elastomeric type hose clamps that are applied by shrink wrapping techniques includes a tubular member with a telescoping rod therein. A blade is attached to the rod. As the handle grips, attached to the rod and the tube, are manually manipulated, the cutter blade which is positioned against the hose clamp effects a clean, quick and precise cut therethrough.Type: GrantFiled: October 7, 1997Date of Patent: October 13, 1998Assignee: Lisle CorporationInventor: Joel A. Negus
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Patent number: 5722170Abstract: An explosive cartridge actuated cable cutter device is presented which has a housing with a longitudinal axis and an axially extending bore therein where the bore has a circumferential step extending radially into the bore defining a reaction shoulder and a frame carried by the housing which extends axially at the cutting end of the device. A reaction blade is carried by the frame and extends laterally across the longitudinal axis and acts in conjunction with a cutting blade to shear power transmission line or underground cable. The shearing action is achieved through the use of a piston member which has a piston head and piston rod and is slideably mounted within the bore.Type: GrantFiled: June 17, 1996Date of Patent: March 3, 1998Inventor: Walter C. Smith
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Patent number: 5711078Abstract: A tool for severing or crimping a workpiece includes a rigid mainframe having an elongate grooved channel running through most of its length. A wedge-shaped upright rigid head forms the front portion of the mainframe. The rear portion of the mainframe has an integral shaft guideway and a mount for mounting a hydraulic cylinder and components. The head and hydraulic mount form a U-shaped jaws area. The upright head has an elongate vertical slot. A cutting or crimping blade can reciprocate along the grooved channel of the mainframe and enter the head so that the blade can fully sever a workpiece placed in the gap between the blade and head. The blade can be a pointed V-shaped cutting blade or a flat crimping blade having a blunt leading edge. The base of the blade has a flange for cooperating with the grooved channel for guiding the blade. The blade is manipulated by a hydraulic piston which is positioned in a hydraulic cylinder mounted at the rear portion of the mainframe.Type: GrantFiled: March 4, 1996Date of Patent: January 27, 1998Inventors: Tommy L. Patton, Peter J. Schneider, deceased, by Marlene R. Schneider, executor