Disc Cutter Patents (Class 30/102)
  • Patent number: 11667048
    Abstract: A pipe cutting device includes: a body; a pipe fixing part disposed adjacent to a hollow hole of the body and capable of fixing a pipe; a rotating plate coupled to the body so as to be rotatable about a center axis of the hollow hole and connected to a first driving part to be rotationally controlled; a cam coupled to the rotating plate so as to be rotatable about a rotation shaft at a point spaced apart from the center axis; and a cutter part coupled to the rotating plate to rotate together with the rotating plate and to come into contact with the cam such that, according to rotation of the cam, a cutting tip moves forwards and backwards the center axis.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: June 6, 2023
    Inventor: Insung Choi
  • Patent number: 11571761
    Abstract: A thread restoration tool (10), including: a first (30A) and second (30B) jaw, being horizontally rotatable (72B) one in relation to the other, for gripping the thread (22) in between; at least one knife (20A, 20B), extending from at least one of the first (30A) and second (30B) jaws, for being inserted into the thread (22) by the gripping; a vertical to horizontal convertor (208), for converting vertical motion of a vertically positioned rod (36) to the horizontal rotating of one of the jaws (30A, 30B) in relation to the other, thereby the gripping of the thread (22) is operable via the top (44A) of the rod (36) being disposed above the thread (22), thereby reducing occupied space (220) around the thread (22), required for the gripping.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: February 7, 2023
    Inventor: Moshe Aharon Abraham
  • Patent number: 11285551
    Abstract: A pipe cutting device includes first and second C-shaped half-bodies, a cutter disposed between the first and second C-shaped half-bodies, two wheels, an automatic cutter feeding mechanism, and arc-shaped plate adjustment screws. The automatic cutter feeding mechanism moves the cutter to perform an automatic feeding operation and is in cooperation with the two wheels to cut a pipe. The first and second C-shaped half-bodies include a first screw hole and a second screw hole respectively, the arc-shaped plate adjustment screws are locked into the first screw hole and the second screw hole respectively, to adjust a moving path, toward a location between the two wheels, of the cutter pushed by the automatic cutter feeding mechanism. Therefore, the pipe cutting device can adjust the moving path of the cutter, fine tuning to cut the pipe, and adjusting a pressing force of the cutter.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: March 29, 2022
    Inventor: Pin-Hao Lee
  • Patent number: 10808473
    Abstract: A load limiting device that limits and/or provides an indication when an amount of torque applied to a threaded tubular connection by a tong exceeds a predetermined amount.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: October 20, 2020
    Assignee: FORUM US, INC.
    Inventors: Frederik Stoldt, Andre Vierke
  • Patent number: 10773319
    Abstract: A cutter includes an arc main body having a clamping groove in which a steel pipe may be putted, a plurality of bearings are mounted on the inner side of the main body, a fixed platform is arranged at the back end of the main body, a fixed block is fixed on the fixed platform, a lead-screw drive group penetrates the fixed block, the lead-screw drive group comprises a slide bar and a lead screw, the slide bar penetrates the fixed block, the lead screw is arranged on the slide bar and matches with the slide bar, a blade is mounted at the front end of the slide bar, the back end of the lead screw is connected with a gear drive group, the gear drive group is connected with a handle, and the fixed block is provided with a toothed fastener matching with a groove on the lead screw.
    Type: Grant
    Filed: March 17, 2019
    Date of Patent: September 15, 2020
    Assignee: Shanghai C-Mart Tools Co., Ltd.
    Inventor: Junqiao Xu
  • Patent number: 10442017
    Abstract: The invention refers to a mandrel holder for a pipe cutter having a nearly C-shaped bracket, which supports counter-pressure rollers on one end and is connected, at the other end, to a longitudinal handle containing an adjustment device carrying a cutting wheel, these components defining a tool plane through which a vertical axis passes, which extends between and axially parallel to the counter-pressure rollers and the cutting wheel. The tool plane contains the cutting point of the cutting wheel. The mandrel holder contains a coupling portion designed to radially and axially encompass an arc-shaped portion of the C-shaped bracket, an outer longitudinal portion extending from the coupling portion axially parallel to the vertical axis up to an end piece, and an inner longitudinal portion which extends from the end piece along the vertical axis back approximately to the tool plane and has a rotatable mandrel.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: October 15, 2019
    Inventor: Sonja Maria Bilz
  • Patent number: 10150225
    Abstract: A cutter, such as a tubing cutter or a swing cutter. The cutter may include a cutting wheel; a roller; a housing assembly including a first housing portion supporting the cutting wheel and a second housing portion supporting the roller; a shaft connecting the housing portions, rotation of the shaft causing relative movement of the housing portions along a shaft axis; and a knob connected to the shaft and engageable by a user to rotate the shaft, the knob having, in a plane perpendicular to the shaft axis, a non-symmetrical shape defined by opposite circular sector portions and opposite lever portions, each lever portion being engageable by a user to apply a force to the knob in a direction of rotation. The cutter may include a shaft with a radial shoulder preventing movement of the shaft from the cavity through an opening in the housing portion.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: December 11, 2018
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Steven W. Hyma, Matthew W. Naiva, Chen Jian Fan
  • Patent number: 10059018
    Abstract: A C-type tubing cutter is described that accommodates and cuts a range of tubing or workpiece sizes. The cutter includes a radially positionable roller carriage that can be selectively positioned in one of several predetermined positions corresponding to different tubing sizes. The cutter also includes a trigger that can be engaged with the roller carriage to lock the carriage in a desired position. Certain versions of the cutters also utilize arcuate slots or tracks along which a cutter wheel is positionable.
    Type: Grant
    Filed: January 10, 2017
    Date of Patent: August 28, 2018
    Assignee: Ridge Tool Company
    Inventors: Michael Zhou, Frank Wu, Harald Krondorfer, Gina Hartman, Glen R. Chartier, Alex M. Cole, Richard R. Bowles, Ben Azzam, Adam Bird, Frederick D. Pond
  • Patent number: 10052701
    Abstract: C-type tubing cutters are described. The cutters include a cutting wheel that can be easily and quickly replaced. In many versions of the cutters, the cutting wheel can be replaced without disassembly of the housing and/or without the use of tools.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: August 21, 2018
    Assignee: Ridge Tool Company
    Inventors: Qi Zhou, Duan Wu
  • Patent number: 10035202
    Abstract: A pipe cutter includes a body and a cutting wheel unit. The body includes a slot, a transverse slot and a recessed area. The cutting wheel unit includes a shaft, a cutting wheel, a movable member and a resilient member. The shaft is pivotably connected to the transverse slot and includes a flange and an engaging groove. The cutting wheel is received in the slot and is pivotably connected to the shaft. The movable member is movably received in the recessed area and has an engaging portion which is engaged with the engaging groove of the shaft. The resilient member is biased between the recessed area and the movable member so that the shaft is restricted from being disengaging from the transverse slot by the movable member.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: July 31, 2018
    Assignee: TOP GOAL Enterprise Limited
    Inventors: Tsan-Lung Chen, Yuan-Te Chou
  • Patent number: 9907596
    Abstract: A surgical rod scorer is provided. The surgical rod scorer includes a pair of elongated shaft members that are pivotably coupled to one another and movable from a spaced-apart configuration to an approximated configuration. Each of the shaft members includes a handle member that is configured for gripping by a user and jaw member that is configured to support respective first and second cutting assemblies thereon. The first and second cutting assemblies each include one or more cutting elements thereon configured and dimensioned to score surgical rod when the jaw members are in the approximated configuration and rotated about the surgical rod.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: March 6, 2018
    Assignee: K2M, INC.
    Inventors: Larry McClintock, Kevin R. Strauss, Faheem Sandhu
  • Patent number: 9707691
    Abstract: Conduit cutting tools and conduit cutting tool operational methods are described. According to one aspect, a conduit cutting tool includes a pivot pin, a pair of elongated members coupled with the pivot pin, and wherein the elongated members include a jaw and a handle and interior portions of the jaws include cutting blades, wherein the jaws are spaced apart from one another in an open configuration to receive a conduit and one of the elongated members is configured to move with respect to an other of the elongated members as a result of an input force to the handles, and wherein the movement of the one elongated member rotates the jaw of the one elongated member towards the jaw of the other elongated member and moves the jaw of the one elongated member in a substantially linear direction towards the jaw of the other elongated member.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: July 18, 2017
    Assignee: RL Tools, L.L.C.
    Inventors: Paul Lindstrom, Mike Raunig, Chris Loraas
  • Patent number: 9144447
    Abstract: A surgical rod scorer is provided. The surgical rod scorer includes a pair of elongated shaft members that are pivotably coupled to one another and movable from a spaced-apart configuration to an approximated configuration. Each of the shaft members includes a handle member that is configured for gripping by a user and jaw member that is configured to support respective first and second cutting assemblies thereon. The first and second cutting assemblies each include one or more cutting elements thereon configured and dimensioned to score surgical rod when the jaw members are in the approximated configuration and rotated about the surgical rod.
    Type: Grant
    Filed: December 5, 2012
    Date of Patent: September 29, 2015
    Assignee: K2M, Inc.
    Inventors: Larry McClintock, Kevin R. Strauss, Faheem Sandhu
  • Patent number: 8833219
    Abstract: A device for cutting a length of pipe includes a clamp portion for clamping around a length of pipe and a bow moveable with respect to the clamp portion that retains a loop of diamond embedded wire. The device further includes a feed for driving the bow with respect to the clamp portion and a detector for detecting bending of the wire and a control responsive to the detector for controlling feed rates. The device is made of modular parts and has synchronizing arms for clamping around a length of pipe. In one embodiment, the wheels are retained in enclosures with slots through which the cutting wire passes.
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: September 16, 2014
    Assignee: Illinois Tool Works Inc.
    Inventor: Kenneth R. Pierce
  • Publication number: 20140174269
    Abstract: A tube cutting device includes a tube holding member that holds a target tube from an inside of the target tube, allowing the target tube to be cut from an outside; and a cutter carrier member that includes a cutter eccentrically pivotable relative to the geometry axis of an elongate body of the cutter carrier member, such that when in a non-extended position, the cutter is positioned within a diameter of the elongate body, and when in an extended position, the cutter extends outwardly and cuts into a wall of the target tube.
    Type: Application
    Filed: December 23, 2013
    Publication date: June 26, 2014
    Applicant: TRANE INTERNATIONAL INC.
    Inventors: Steven M. GROSVOLD, Nels J. EBBESEN, John A. LOCHEN, Robert R. CRADER, Steven M. OIEN
  • Publication number: 20140150266
    Abstract: An apparatus for machining a tubular piece, wherein the apparatus includes a frame element, support rollers, which are associated with the frame element, support a workpiece and rotate the same around its longitudinal axis. In addition, the frame element is provided with a machining unit adapted to be movable towards and away from the workpiece. The machining unit includes a tool member, such as for example a cutting tool, as well as support wheels adapted to bear against a workpiece. The machining unit is arranged to link up with the frame element through the use of an auxiliary frame element adapted to clamp itself thereto at not less than two support points, for example through the use of a self wedging assembly implemented with an indentation.
    Type: Application
    Filed: July 6, 2012
    Publication date: June 5, 2014
    Applicant: EXACT TOOLS OY
    Inventors: Mika Petteri Priha, Seppo Antero Makkonen
  • Patent number: 8689449
    Abstract: A power driven tube cutter having a power source and an open end for receiving the tube to be cut is provided. A tool housing encloses a circular tube cutter and opposed rollers as well as a pair of gear trains which can rotate at different speeds. One of the trains drives tool rotation and the other of the trains drives the tube cutter. Tool rotation can be reversed for setting the cutter and rollers in starting positions, along with setting and presenting the open end for the next tube to be cut. Two power-take-offs for treating the tube are also provided.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: April 8, 2014
    Assignee: Tesla Tools LLC
    Inventor: Milisav Lazarevic
  • Publication number: 20140091125
    Abstract: A tool for shortening an implant rod has a base housing part and a movable housing part shiftable toward and away from each other in a predetermined direction. At least one guide roller is provided on the movable housing part, and a cutter is provided on the base housing part. The rod is fittable between the cutter and the guide roller in a spread position of the housing parts. A biasing unit urges the parts together and thereby presses the cutter into the rod with a predetermined force. Thus the cutter is pressed against the workpiece with a force that does not change and that is not under the control of the user, ensuring that the force applied lies within an acceptable safe range.
    Type: Application
    Filed: November 15, 2012
    Publication date: April 3, 2014
    Inventor: Steffen DIRR
  • Patent number: 8667693
    Abstract: A flange bolt cutter for separating two connected flanges. The flange bolt cutter contains a circular saw blade pivotally connected to an adjustable flange band. The flange band contains an alignment ring for aligning the circular saw blade about the midpoint between two connected flanges. The flange bolt cutter is hydraulically operated. The adjustable flange band may be formed in two band sections hinged together and containing a rotatable bolt and handle for tightening and loosening the band sections around the flange connection.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: March 11, 2014
    Assignee: Greene's Energy Group, LLC
    Inventors: Shawn Ellis, Benjamin J. Snyder, Rusty Richard
  • Patent number: 8601697
    Abstract: A cutting tool for a pipe of specific diameter comprises a generally cylindrical body 1 defining a central bore 10 extending along an axis. The body is divided into two axially spaced half portions 2A and 2B which together clamp a cutting blade 8 projecting into the bore 10. The body has a progressively narrowing slot 12 extending from its outer circumference to the bore. At the bore 10 the width of the slot 12 is narrower than the diameter of the bore. One side of the slot 12 is flexibly resilient to flex away when a pipe of diameter equal to the bore is pushed along the slot into the bore and to resile when the pipe has entered the bore, urging the pipe against the blade so that subsequent relative rotation between the tool and pipe will cause the pipe to be severed.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: December 10, 2013
    Assignee: Scott Cutters UK Limited
    Inventor: Kenneth Whittaker
  • Patent number: 8418589
    Abstract: A pipe cutting apparatus having a frame and first and second pipe support arms. The pipe support arms are pivotally attached to the frame. First and second pipe support members on the first and second arms together with a third pipe support member securely grip the pipe at substantially equally circumferentially spaced locations. A camming member is used to place the first and second pipe support arms in predefined locations for holding differently sized pipes. An linkage assembly causes the third pipe support member to biasingly engage the pipe. A two-part tool shield is provided together with a depth adjusting assembly for facilitating the cutting and beveling of the pipe. A power transmission assembly transfers power from a motor on the frame to a tool located on a pivoting arm. The frame may be manufactured using an adhesive filler material for enhancing the rigidity, strength and accuracy of the components.
    Type: Grant
    Filed: October 14, 2011
    Date of Patent: April 16, 2013
    Inventors: Lyle D. Kaehr, James A. Kaehr
  • Patent number: 8413336
    Abstract: An improved structure of a cutting tool includes a body, a moving base, and a roller base. The body has a track groove whose one side is extended upward with a stopping wall. The moving base is disposed to slide in the track groove and mounted with a cutting wheel. The moving base is connected with a transmission element so as to move along the track groove. The roller base is disposed between the moving base and the stopping wall. More than one elastic element is disposed between the roller base and the stopping wall. The elastic elements generate a deviation when the roller base is under a force. The roller base has at least two rollers corresponding to the cutting wheel.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: April 9, 2013
    Assignee: Asian First Refrigeration Corporation
    Inventors: Jack Chiu, Sheng-Chih Chiu
  • Publication number: 20120240410
    Abstract: A cutting tool includes a body, a moving base, and a roller base. The body has a rail groove, whose one side is extended upward with a stopping wall. The moving base is disposed in the rail groove of the body and has a cutting wheel. The moving base is connected with a transmission element and driven by the transmission element to move along the rail groove. The roller base is interposed between the moving base and the stopping wall. There are a plurality of elastic elements between the roller base and the stopping wall. The roller base is disposed with at least two rollers opposite to the cutting wheel.
    Type: Application
    Filed: July 5, 2011
    Publication date: September 27, 2012
    Applicant: ASIAN FIRST REFRIGERATION CORPORATION
    Inventor: Sheng-Chih Chiu
  • Publication number: 20120023752
    Abstract: A cutting tool for a pipe of specific diameter comprises a generally cylindrical body (1) defining a central bore (10) extending along a predetermined axis. The body is divided into two axially spaced half portions (2A and 2B) which clamp between them a cutting blade (8) that projects into the bore (10). The body has a progressively narrowing slot (12) extending from its outer circumference to the bore. At the bore (10) the width of the slot (12) is narrower than the diameter of the bore. The tool to one side of the slot (12) is flexibly resilient so as to flex away when a pipe of diameter equal to the bore is pushed along the slot into the bore and to resile when the pipe has entered the bore and so urge the pipe against the blade so that subsequent relative rotation between the tool and pipe will cause the pipe to be severed.
    Type: Application
    Filed: February 10, 2009
    Publication date: February 2, 2012
    Applicant: SCOTT CUTTERS LIMITED
    Inventors: Scott Rampling, Laurence Fidler, Kenneth Whittaker
  • Patent number: 8061249
    Abstract: A pipe cutting apparatus having a frame and first and second pipe support arms. The pipe support arms are pivotally attached to the frame. First and second pipe support members on the first and second arms together with a third pipe support member securely grip the pipe at substantially equally circumferentially spaced locations. A camming member is used to place the first and second pipe support arms in predefined locations for holding differently sized pipes. An linkage assembly causes the third pipe support member to biasingly engage the pipe. A two-part tool shield is provided together with a depth adjusting assembly for facilitating the cutting and beveling of the pipe. A power transmission assembly transfers power from a motor on the frame to a tool located on a pivoting arm. The frame may be manufactured using an adhesive filler material for enhancing the rigidity, strength and accuracy of the components.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: November 22, 2011
    Inventors: Lyle D. Kaehr, James A. Kaehr
  • Patent number: 7934317
    Abstract: A pipe cutter has a body, a mounting sleeve, a drive segment and an operating head. The body has multiple wheels and an extension tube. The mounting sleeve is slidably mounted in the extension tube and has two elongated holes respectively formed through two opposite sidewalls of the mounting sleeve. The drive segment is mounted in the mounting sleeve and has a blade mount, a linking shaft and a spring. The blade mount is slidably mounted in the mounting sleeve and has a mounting recess, a mounting rod, a through hole, a holding pin and a blade. The linking shaft is slidably mounted in the mounting sleeve. The spring is mounted around the mounting rod and abuts the blade mount and the linking shaft to provide a damping effect to the blade. The operating head is rotatably connected to the mounting sleeve and is connected to the drive segment.
    Type: Grant
    Filed: December 20, 2008
    Date of Patent: May 3, 2011
    Inventor: Ching-Su Chiu
  • Publication number: 20100199499
    Abstract: A tube cutter is disclosed having a frame roller assembly and a cutting wheel assembly. The frame roller assembly includes two or more independently rotatable frame rollers which share a common axis. The cutting wheel assembly includes a cutter wheel disposed between two independently rotatable slide rollers, the cutter wheel and slide rollers sharing a common axis of rotation. The frame rollers are generally aligned with the slide rollers during a cutting operation. The tube cutter retains the ends of a tube during and after cut completion. The tube cutter is particularly suited for cutting corrugated tubing, and most particularly, a range of different sizes and configurations of corrugated tubing.
    Type: Application
    Filed: February 7, 2009
    Publication date: August 12, 2010
    Applicant: EMERSON ELECTRIC CO.
    Inventor: Oscar J. Dibble
  • Patent number: 7743510
    Abstract: A tool for power cutting and treating a tube or the like, and having a power source and an open end for receiving the tube for cutting. There are a tube cutter and rollers for rotation around the tube during cutting. A tool housing encloses the cutter and rollers and also two gear trains which can rotate at different speeds. One of the trains creates tool rotation drive and the other of the trains creates tube cutting. The rotation drive can be reversed for setting the cutter and rollers in starting positions, along with setting and presenting the open end to the next tube to be cut. The rotating gears also drive two power-take-offs for treating the tube.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: June 29, 2010
    Assignee: OSG Power Tools, Inc.
    Inventor: Milisav Lazarevic
  • Patent number: 7681315
    Abstract: A clamping tool for use with a power tool includes a housing mounted on a power tool. The housing includes at least one engaging portion. The locking pliers includes a retaining section with a proximal end and a distal end. The proximal end is mounted on the at least one engaging portion for retain the locking pliers in a selectively, releasably, rotational relationship relative to the housing. An engaging section of the locking pliers is mounted relative to the retaining section and is selectively locked relative to the distal end of the retaining section for positioning an article therebetween. In two embodiments, after an article is locked in the locking pliers, the locking pliers can be rotated either away from or towards the housing to permit the power tool to come into engagement with an article.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: March 23, 2010
    Inventor: James Vanerd Wicklund, Jr.
  • Patent number: 7624663
    Abstract: A pipe cutting apparatus having a frame and first and second pipe support arms. The pipe support arms are pivotally attached to the frame. First and second pipe support members on the first and second arms together with a third pipe support member securely grip the pipe at substantially equally circumferentially spaced locations. A camming member is used to place the first and second pipe support arms in predefined locations for holding differently sized pipes. An linkage assembly causes the third pipe support member to biasingly engage the pipe. A two-part tool shield is provided together with a depth adjusting assembly for facilitating the cutting and beveling of the pipe. A power transmission assembly transfers power from a motor on the frame to a tool located on a pivoting arm. The frame may be manufactured using an adhesive filler material for enhancing the rigidity, strength and accuracy of the components.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: December 1, 2009
    Inventors: Lyle D. Kaehr, James A. Kaehr
  • Publication number: 20090235532
    Abstract: A pipe cutting and bevelling tool has a saw blade or abrasive disc and bevelling cutters or abrasive-coated drums extending through a slot in a first guide plate, the saw blade or abrasive disc and bevelling cutters, or abrasive-coated drums being driven by a suitable engine or motor. By selective angular adjustment of a second guide plate relative to the first guide plate the tool can cut and bevel pipes of a range of diameters, or cut different bevel depths in pipes of a given diameter.
    Type: Application
    Filed: March 14, 2007
    Publication date: September 24, 2009
    Inventor: Robert M Stratford-Smith
  • Patent number: 7506445
    Abstract: Foil cutting device for cutting a sealing foil of a bottle. This foil cutting device is of the type which is positioned from above on the bottle. To that end a cutting device is provided with a stop determining the distance between the free extremity of the bottle and the cutting knives. The foil cutting device comprises two side portions and an upper portion connecting the side portions being integral with the side portions. In this way and elastically pivoting structure results, such that foil material can be cut with a lot of feeling. Between the side portions an opening is delimited and on one of the side portions a cavity for fingers is provided so that it is clear for the user in which direction a pinching force should be exerted for cutting the foil. The cutting knives are conically flared to a plane embodied such that after cutting the resilient foil material is run up by the cutting knives and can easily be removed.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: March 24, 2009
    Assignee: Vacu Vin Innovations Ltd.
    Inventors: Delphine Pauline Buyse, Patrick Lambertus Kerkhof, Arnoldus Willem Zweekhorst
  • Patent number: 7246443
    Abstract: Cutting device for making interior cuts includes first and second pivot members pivotally connected to one another at a pivot point and each including a handle portion with a finger-receiving aperture on one side of the pivot point and an arm portion on the other side of the pivot point. One or more rotatable, substantially circular cutting blades are arranged at a free end part of the arm portion of the first pivot member while one or more support rolls are arranged at a free end part of the arm portion of the second pivot member in a position opposite at least one of the cutting blade(s).
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: July 24, 2007
    Inventor: David M. Stravitz
  • Patent number: 7159319
    Abstract: A tube cutter includes a handle having a chamber to slideably receive a casing of a tool device, the casing includes an aperture and two side openings communicating with a U-shaped groove, a tool member includes a shank rotatably received in the aperture of the casing and having a stem for trimming purposes. A U-shaped spring member is received in the groove of the casing, and includes two inwardly bent segments to rotatably retain the shank of the tool member within the aperture of the casing, and two outwardly bent segments extended out through the side openings of the casing, and engageable with the handle, to position the casing to the handle.
    Type: Grant
    Filed: June 11, 2004
    Date of Patent: January 9, 2007
    Inventor: Wu Sheng Huang
  • Patent number: 7103950
    Abstract: A tool assembly which is adapted to perform a cutting operation and also a beveling operation on a pipe. There is a rotary power saw which has rotary drive member to which a saw blade can be mounted. There is a bevel section having a mounting member that connects to the rotary drive member, and a bevel member. There is a locating surface portion around the axis of rotation of the bevel member, and an end lateral locating section and an apex end of the bevel member. The bevel section can be removably connected to the drive member of the power saw.
    Type: Grant
    Filed: July 11, 2003
    Date of Patent: September 12, 2006
    Inventor: Douglas Scheffer
  • Patent number: 7082656
    Abstract: A tool for beveling the end of a pipe is comprised of a hollow, tubular body having a central, longitudinal axis of rotation, an inboard coupling end, and an opposite outboard working end. A plurality of longitudinally spaced, transversely directed latching pin bores of equal size are defined through the wall of the tubular body. A core member is disposed coaxially within the tubular body. The core member includes a beveling cutter head and a longitudinal stem having a radially inwardly directed, circumferential latch position groove. A transversely oriented latching pin is engaged in a selected one of the latching pin bores in the body and with the latch position groove of the core stem. This allows alternative selection of each of the latch position bores for insertion of the latching pin. The particular bore selected determines the longitudinal position of the core stem latch position groove within the body that will be aligned with the latching pin.
    Type: Grant
    Filed: April 19, 2004
    Date of Patent: August 1, 2006
    Inventors: C. Warren Duncan, Bill Glynn, Bruce Root
  • Patent number: 7013567
    Abstract: A pipe cutter comprises a rotary head having an axis of rotation, and a housing gear is coaxial with the rotary head such that the housing gear and rotary head have a common axis of rotation. A pipe slot extends into the rotary head and the housing gear, and a pipe cradle is provided in the pipe slot, and serves to receive a pipe. A cutting wheel is associated with the rotary head and a wheel biasing member urges the cutting wheel to extend into the pipe slot. A primary drive source is operatively connected to the housing gear by a gear system that rotates the housing gear and the rotary head about the common axis of rotation. Because the cutting wheel is biased to extend into the pipe slot and contacts a pipe placed therein, the cutting wheel revolves around the pipe and cuts into the pipe during rotation of the rotary head. The primary drive source may be manual or automated.
    Type: Grant
    Filed: October 27, 2003
    Date of Patent: March 21, 2006
    Inventor: Kent J. Myers
  • Patent number: 7007391
    Abstract: The present invention is a C-shaped plastic tubing cutter having a C-shaped grasping portion and a fixed cutting blade. The grasping portion has an opening for receiving the tubing whereby the width of the opening is measurably smaller than the diameter of the tubing to permit snap engagement of the tubing into the grasping portion upon sufficient force and retention therein. In addition, the inner diameter of the grasping portion can be measurably smaller than the outer diameter of the tubing to promote securement of the tubing within the grasping portion to better facilitate precision cutting. Once engaged, a grasping bias force brings the inner surface of the grasping portion into substantial circumferential contact with the tubing to again promote securement and cutting. The circumferential contact is greater than 50 percent, and generally less than 75 percent, of the tubing circumference.
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: March 7, 2006
    Assignee: Entegris, Inc.
    Inventors: John B. Stoick, Michael A. Stoick, Carlos Cadavid
  • Patent number: 6938313
    Abstract: A pipe-cutting device comprising a portable support; a device for rotating said pipe relative the support; a cutter associated with said support for cutting the pipe during rotation of the pipe.
    Type: Grant
    Filed: August 1, 2003
    Date of Patent: September 6, 2005
    Inventors: Daniel Viola, Randy Dodgson, David de Sylva
  • Patent number: 6886253
    Abstract: A foil cutter including first and second foil cutting means, said first and second cutting means being relatively movable towards each other for foil cutting engagement with the neck of a bottle, wherein, at least one of said cutting means including a pair of pivotally movable cutting members.
    Type: Grant
    Filed: August 11, 2003
    Date of Patent: May 3, 2005
    Inventor: Wai Chan
  • Patent number: 6739055
    Abstract: A rotatable tube cutter for cutting a tube-like work piece is disclosed. This rotatable tube cutter mainly comprises a fixing portion, a rotatable portion, a cutting blade assembly, and a feeding assembly. By rotating a feeding knob, the feeding amount can be easily controlled. So, this invention is easy to operate by one hand. It is able to work in a limited available space via repeating lift and press movements. It is possible to work in the traditional full circle rotation method. And, it has manual and automatic dual feeding modes.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: May 25, 2004
    Inventor: Tai-Hung Lee
  • Patent number: 6658739
    Abstract: A pipe cutter comprises a fastening mechanism including two pivot members on both sides of a top recess, two bifurcated pivot links, two rollers on top ends of the pivot members, an upper rotary blade, and a lower transmission mechanism. The transmission mechanism is operative to pivot the fastening mechanism for forming a three-point support (i.e., the rollers and the blade) of a pipe to be cut. A number of configurations of the cutter are possible.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: December 9, 2003
    Inventor: De Lun Huang
  • Publication number: 20030121155
    Abstract: A cutting head for a portable, hand-held, power-operated pipe cutter is constructed with channels to permit lateral insertion of a pipe. The power-transmission arrangement employed includes at least one component that effectively spans the entrance to the channel in the mounting plate assembly so as to ensure that driving engagement is maintained constantly therebetween.
    Type: Application
    Filed: December 31, 2001
    Publication date: July 3, 2003
    Inventors: Richard T. Walsh, Richard T. Walsh
  • Publication number: 20030093904
    Abstract: The invention relates to an apparatus for machining, especially cutting tubular or round section bodies (1), said apparatus comprising a gripping mechanism (2), which is adapted to be braced on said machinable body (1) rotatably around the same and which gripping mechanism (2) is provided with a machining unit (3) fitted with adjusting means (4) for moving said machining unit (3) relative to the gripping mechanism (2) towards or away from the machinable body (1), and which gripping mechanism (2) includes a frame section (5) and first and second arms (6, 7) extending therefrom, the gripping mechanism (2) being adapted to brace against the machinable body (1) by means of bracing elements (14, 15, 16) mounted on the frame section (5) and the arms (6, 7). The arms (6, 7) are at one end articulated to the frame section (5) of the gripping mechanism (2) and the bracing elements (15, 16) included in the arms (6, 7) are mounted on the free ends of the arms.
    Type: Application
    Filed: December 24, 2002
    Publication date: May 22, 2003
    Inventor: Seppo Makkonen
  • Publication number: 20030074794
    Abstract: The present invention is a C-shaped plastic tubing cutter having a C-shaped grasping portion and a fixed cutting blade. The grasping portion has an opening for receiving the tubing whereby the width of the opening is measurably smaller than the diameter of the tubing to permit snap engagement of the tubing into the grasping portion upon sufficient force and retention therein. In addition, the inner diameter of the grasping portion can be measurably smaller than the outer diameter of the tubing to promote securement of the tubing within the grasping portion to better facilitate precision cutting. Once engaged, a grasping bias force brings the inner surface of the grasping portion into substantial circumferential contact with the tubing to again promote securement and cutting. The circumferential contact is greater than 50 percent, and generally less than 75 percent, of the tubing circumference.
    Type: Application
    Filed: October 18, 2001
    Publication date: April 24, 2003
    Inventors: John B. Stoick, Michael A. Stoick, Carlos Cadavid
  • Patent number: 6481105
    Abstract: A pipe cutter includes a handle, a power-forcing handle, a position recovery member, a drive device, a revolving member, and a cutter device combined together. The handle and the power-forcing handle are pivotally combined together, and pressing the power-forcing handle toward the handle to force the drive device to revolve the revolving member and the cutter device to cut off a pipe placed in the revolving member. The pipe cutter is easy to handle by only pressing the power-forcing handle in cutting a pipe.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: November 19, 2002
    Inventor: Tom Haung
  • Patent number: 6401340
    Abstract: A tubing cutter for cutting thin walled metallic tubing of the type used for electrical conduit. The tubing cutter is of the type which supports the tubing being cut between a roller or rollers and an oppositely disposed rotary cutting wheel of a given radius located within the head of the cutter, the cutter being rotated around the tubing to cause the cutting wheel to cut into and through the wall of the tubing. The cutter is prevented from cutting all the way through the wall of thin walled metallic tubing by means of a depth gage stop member which contacts the tubing to terminate cutting. The depth gage stop member can be stationary or rotary, and is comprised of a pair of legs or rollers placed on each side of the rotary cutting wheel. The length of the legs or the radius of the rollers are less than the radius of the rotary cutting wheel by a distance that represents less than the wall thickness of the tubing to be cut.
    Type: Grant
    Filed: July 26, 2000
    Date of Patent: June 11, 2002
    Inventor: Franklin H. King
  • Patent number: 6393700
    Abstract: A tube cutter for cutting a circular tube having a central tube axis, the cutter comprising: a housing with first and second parallel rollers defining a cradle for receiving a tube cut with the tube axis generally parallel to the axes of the rollers, a cutter head reciprocally mounted on the housing for sliding linearly in a direction toward and away from the rollers, the cutter head having a base and an upstanding arm supporting a cutter wheel rotatable about an axis generally parallel to the axes of the rollers and facing the tube in the cradle, a spring element biasing the cutter wheel in the stated direction and toward the rollers, and a threaded shaft between the housing and cutter head, and rotatable to move the cutter head linearly toward the housing, whereby the cutter wheel engages the tube and the spring element creates a cutting force pushing the cutter wheel against the tube for cutting the tube.
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: May 28, 2002
    Assignee: Emerson Electric Co.
    Inventor: Larry F. Babb
  • Patent number: 6378212
    Abstract: The present invention relates to a pipe cutting device for cutting a pipe or conduit. The device includes a first supporting portion and a second supporting portion associated with the first supporting portion. The first and second supporting portions are configured and dimensioned to at least partially encircle an opening to encompass a pipe to be cut. The device also includes at least two cutters positioned in one of the first and second supporting portions for engaging a pipe to be cut, the cutters being interchangeably rotatable between a circumferential cutting direction and a longitudinal cutting direction. The device is movable relative to a pipe to be cut and cuts the pipe interchangeably in either the longitudinal cutting direction or the circumferential cutting direction. Cutting in the longitudinal cutting direction creates at least two substantially longitudinal cuts in the pipe and cutting in the circumferential direction creates a circumferential cut in the pipe.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: April 30, 2002
    Assignee: AT&T Corp
    Inventor: Michael Shane Belew
  • Patent number: RE40461
    Abstract: A pipe cutter includes a body having two side walls and each of the side walls has an arcuate slot. A rod pivotally extends through the first end of the body and a first contacting member is rotatably connected to the second end of the body. A first link has a first end thereof pivotably connected to the body and a second end thereof having a disk blade rotatably connected thereto. The rod is pivotally connected to the first link to which a second link is pivotally connected, the other end of the second link has a second contacting member rotatably connected thereto. The second contacting member has two protrusions extending centrally and longitudinally therefrom so as to move within the two arcuate slots.
    Type: Grant
    Filed: January 18, 2001
    Date of Patent: August 26, 2008
    Inventor: Bobby Hu