Pipe- Or Rod-encircling Patents (Class 30/95)
  • Patent number: 10247532
    Abstract: A tubing pipe sizing tool is provided, comprising a main body, a measuring portion, a handle-installing hole, a bump portion, and a handle. The measuring portion is provided on a first part of the main body in a first direction. The handle-installing hole is provided on a second part of the main body in a second direction perpendicular to the first direction. The bump portion is provided around an opening of the handle-installing hole. The handle is configured to engage the handle-installing hole and facilitate pipe sizing. The main body may have a cylindrical shape, and the bump portion facilitates to handle the tool.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: April 2, 2019
    Inventor: Kwon J. Park
  • Patent number: 9586275
    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: Grant
    Filed: July 6, 2012
    Date of Patent: March 7, 2017
    Assignee: EXACT TOOLS OY
    Inventors: Mika Petteri Priha, Seppo Antero Makkonen
  • Patent number: 9136677
    Abstract: A flush cut tool is configured with a support unit operative to hold an armored cable in a desired position. The flush cut tool is further configured with a cutting unit including a hand crank, a blade assembly fixed to the hand crank and a friction assembly. The hand crank is configured to rotate relative to the friction assembly about a pivot axis until the blade assembly is brought in contact with the jacket of the cable. Thereafter, the hand crank, blade assembly and friction unit continue t rotate together about the axis of the cable so that the blade assembly is operative to produce a ring cut.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: September 15, 2015
    Inventor: Lucien C. Ducret
  • Publication number: 20150075005
    Abstract: A surgical rod cutter includes first and second device parts adapted to be rotated relative to one another about an axis of rotation. The device parts each have a continuous opening for accommodating a rod to be severed, the opening having its longitudinal axis oriented in the direction of the axis of rotation and a cutting edge. The cutting edge of the second device part is formed in opposed relationship with the cutting edge of the first device part. The openings are arranged with the same amount of eccentricity with respect to the axis of rotation. The device parts are operatively connected to one another by teeth and can be positioned relative to one another. At least one of the openings can have replaceably arranged therein a bushing provided with the cutting edge.
    Type: Application
    Filed: September 15, 2014
    Publication date: March 19, 2015
    Inventors: Stephan Lindner, Christoph Burmeister
  • Patent number: 8935974
    Abstract: A rod cutter apparatus includes a rod holding plate having a rod opening for receiving a rod to be cut; a cutting member having a central opening defined by a cutting edge, the central opening being substantially aligned with the rod opening; and a drive assembly connected between the rod holding plate and the cutting member to cause oscillation of the cutting member relative to the rod holding plate, wherein oscillation of the cutting member relative to the rod holding plate cuts a rod in the rod opening.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: January 20, 2015
    Assignee: Vermont Instrument Makers
    Inventors: Lawrence Crainich, Joseph E. Trabka
  • Patent number: 8881817
    Abstract: A downhole tool having a cylindrical body, a sleeve having a contact portion disposed on a distal end, and a cutter having a radiused portion on a top surface operatively engageable with the contact portion. Also, a method of cutting drill pipe, the method including disposing a cutting tool in a wellbore around the drill pip and actuating a radiused cutter of the cutting tool, wherein the actuating includes radially extending the cutter into contact with the drill pipe. The method also includes applying a substantially constant force between the cutter and the drill pipe and rotating the cutting tool. Additionally, a cutter for a drill pipe cutting tool, the cutter including a work surface located at a first end of the cutter, an attachment point located at a second end of the cutter, and a radiused surface located between the work surface and the attachment point.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: November 11, 2014
    Assignee: Smith International, Inc.
    Inventors: Malcolm Perschke, Harshad Patil, Nishant Koti
  • Patent number: 8875404
    Abstract: A power tool includes a motor, a pipe holder configured to support a pipe, and a cutting mechanism coupled to the pipe holder. The cutting mechanism is movable relative to the pipe holder. The power tool also includes a drive mechanism coupled to the cutting mechanism and the motor to move the cutting mechanism from a starting position toward the pipe holder to cut the pipe. The drive mechanism includes a first member operable to disengage a second member to allow movement of the cutting mechanism to the starting position.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: November 4, 2014
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: John S. Scott, Michael Naughton, Scott D. Eisenhardt
  • Publication number: 20140260883
    Abstract: A shaping tool is disclosed comprising a cap, a blade portion and a body. Said blade portion comprises a one or more pairs of blades. Said body having a slot being substantially vertical which said blade portion freely slides vertically through. Said cap comprises a first cylindrical portion with an open mouth at a lower portion and a cap at an upper portion. Said body comprises a first cylindrical portion with an open mouth at a lower portion and a cap at an upper portion. Said open mouth of said cap comprising an internal diameter being greater than an external diameter of said body. Said shaping tool comprising an assembled configuration comprising said blade portion held between said cap and said body and partially within said slot, and said one or more pairs of blades exposed within said body.
    Type: Application
    Filed: March 17, 2014
    Publication date: September 18, 2014
    Inventors: Eddie Willburn, Roger D. Hayes
  • Publication number: 20140259680
    Abstract: Various devices for reconditioning golf tees are disclosed herein.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Inventor: Kyle Spain
  • Patent number: 8800151
    Abstract: A tube cutting device with a rapid separable handle comprises a tube cutter and a handle. The tube cutter comprises a C-shaped housing, a one-way rotation part, and a limit part. The handle comprises a grip part, a C-shaped guiding seat, a separation control part, and a control button. The C-shaped guiding seat is for unidirectional rotation of the C-shaped housing via the one-way rotation part. In a combination position, it engages with the limit part so that the tube cutter and the handle are mutually fixed. In a separation position, it is separated from the limit part so that the tube cutter and the handle are separable from each other for independently perform tube cutting.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: August 12, 2014
    Inventor: Tai-Hung Lee
  • Patent number: 8763257
    Abstract: A power tool, such as a pipe cutter, includes a rotatable cutting head assembly, an electric motor connectable to a rechargeable battery, and a controller. The controller is configured to monitor the state of charge on the battery, compare the state of charge to one or more thresholds, and prevent or limit operation of the power tool when the state of charge is less than or equal to one or more of the thresholds. In some embodiments, the threshold includes the state of charge required to cut a pipe, the state of charge required to return the cutting head assembly to a home position, and a state of charge indicative of an overdischarged condition of the battery. In some embodiments, the controller is configured to detect when the pipe cutter has completed cutting the pipe and returns the cutting head assembly to the home position.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: July 1, 2014
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: Troy C. Thorson, Daniel J. Alberti, Thomas R. Bednar, John S. Scott, Scott Anderson
  • Patent number: 8720070
    Abstract: A pipe peeler for removing a uniform layer of material from the outer surface of a polyethylene pipe is provided. The device comprises a cuboid body, a blade with housing for retracting the blade, a chain attached to one end of the cuboid body, a threaded hook for attaching the other end of the chain to the cuboid body and tightening the chain around a pipe, and a push knob for rotating the device around the pipe in order to peel the pipe. The two points on the chain attached to the body are different distances from the end of the pipe when the chain is tightened around the pipe, thereby creating a spiral track on the pipe that the blade will follow when the device is pushed around the pipe, thereby creating a uniform spiral peel.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: May 13, 2014
    Assignee: Reed Manufacturing Company
    Inventor: Robert M. Sterner
  • Patent number: 8590634
    Abstract: A subsea cutting device for a subsea blow-out preventer or wellhead comprises a tubular body having an axial throughbore, and configured to be fitted to a casing string, the cutting device further comprising a shearing mechanism in the form of a radial cutting system rotatably mounted within a pressure-containing housing, and comprising a plurality of movable cutters arranged around the throughbore and configured for deployment during rotation successively inwards. The cutting device is useful in a subsea shut off device which is latched to a template at surface and run to the sea floor on a casing string which is drilled into place and converted into a riser on a single trip. For the event when emergency disconnection is required, the device may be used to cut the casing and seal in the well. The system then allows a conventional subsea reconnection of the riser.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: November 26, 2013
    Assignee: Geoprober Drilling Limited
    Inventor: Anthony S. Bamford
  • Publication number: 20130291386
    Abstract: A pipe cutting tool with a tubular housing having cylindrical inner and outer surfaces is provided. The housing includes first and second ends and a cylindrical opening extending from the first end towards the second end. A plurality of openings extend through the first end between the inner and outer surfaces. Blade mounting supports are defined between the openings. A plurality of L-shaped cutting blades are provided having a first leg to be disposed in the blade mounting support and a second leg projecting radially inward from the first leg at one end of the first leg. Inwardly facing edges of the legs of the blade are cutting edges for trimming the plastic pipe. The blade is dimensioned so that the cutting edge of the first leg will project slightly into the interior of the housing when the blade is mounted in the blade mounting support.
    Type: Application
    Filed: March 12, 2013
    Publication date: November 7, 2013
    Applicant: ASAHI/AMERICA, INC.
    Inventors: Alex Gambino, Conrad Williams
  • Patent number: 8561302
    Abstract: This invention, through a novel arrangement of basic elements, has resulted in a brand new tool not previously available. This non-obvious implementation provides an electromechanical machine which is both useful and is easily operated. This invention can be arranged as a cutting device for cutting various items such as, but not limited to, plastic irrigation pipe and tree branches or, alternately, with a jaw attached in place of the cutting blade as a clamp or wrench. It accomplishes this by using a small battery powered electric motor and through appropriate reduction gearing drives a drive screw to produce a linear motion of a cutter blade or jaw. The mechanical advantages afforded by the reduction gearing and the drive screw produce sufficient force to perform as a powerful cutter or wrench/clamp.
    Type: Grant
    Filed: February 3, 2013
    Date of Patent: October 22, 2013
    Inventor: Frank August Barcatta
  • Patent number: 8281492
    Abstract: A tube cutter having first and second arms pivotally connected. Each arm includes a handle segment and a head portion. The head portion of one arm includes a v-block and the head portion of the other arm has a cutting portion. At least each handle portion has a black oxide coating or chrome plating. A second tube cutter may include a pair of bumpers, one on each handle and each of the bumpers may include a gusset connecting the bumper to the terminal end of the handle.
    Type: Grant
    Filed: January 27, 2009
    Date of Patent: October 9, 2012
    Inventor: Donald R. Toth
  • Patent number: 8261454
    Abstract: Interchangeable tubing manipulating appliances for use with nut driving tools are disclosed for tubing manipulation, cutting, bending and the like. The appliances include tubing locating and stabilizing structure and securement for aligning and stabilizing the locating and stabilizing structure at one side of the driving tool adjacent to its nut driving head. A rotatable member is engagable at the nut driving head for selective rotation thereof relative to the tubing locating and stabilizing structure. The rotatable member includes a tubing engaging portion and a faceted engagable portion receivable at the nut driving tool. Embodied for tubing cutting, a cutting utility is included mounted adjacent the securement. The rotatable member receives and rotates the tubing. Embodied as a tubing bender, the rotatable member includes a tubing guide end, the locating and stabilizing structure adapted to receive tubing thereat and having an opening for receipt of the rotatable member therethrough.
    Type: Grant
    Filed: February 25, 2009
    Date of Patent: September 11, 2012
    Assignee: American Power Tool Company
    Inventor: David Wilson, Jr.
  • Patent number: 8250960
    Abstract: Systems and methods for cutting, or trimming, a catheter at a specified location along the length of the catheter. The catheter preferably includes a stop feature which interacts with an elongate member of the cutting system to determine the catheter is in a proper position to be cut.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: August 28, 2012
    Assignee: Cardiac Dimensions, Inc.
    Inventors: Louis R. Hayner, Evan M. Keech, Lucas S. Gordon
  • Patent number: 7992305
    Abstract: A cutter includes a guide tube having a tube proximal end and a tube distal end with a tube distal edge, a segment of the tube distal edge being beveled to form a tube cutting edge and an opposing segment of which defining a tube distal edge proximal recess relative to the tube cutting edge; a line engaging structure slidable within the guide tube for engaging a segment of line; and a displacement mechanism for displacing the line engaging structure relative to the tube cutting edge together with a segment of line retained by the line engaging structure into sheering contact with the tube cutting edge, the tube distal end proximal recess permitting a segment of line retained within the line engaging structure to move proximally past the tube cutting edge so that the line abuts the tube distal edge only at the tube cutting edge during line cutting.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: August 9, 2011
    Inventor: Richard P. Herrick
  • Publication number: 20110179649
    Abstract: The present invention provides a pipe cutter, which has a main body, a rotary cutting head disposed on the main body, and the cutting head is detachably mounted to a front portion of the main body via a retaining mechanism. As a result, an operator can select a cutting head of proper size to quickly adapt to different working circumstances or machining operations.
    Type: Application
    Filed: January 20, 2011
    Publication date: July 28, 2011
    Inventor: Keith Park
  • Patent number: 7976753
    Abstract: A piece of corrugated pipe cut from a longer length of pipe is provided with a pipe coupling part by subjecting one or more of the corrugation crests on the pipe to heat and pressure. This reshapes the one or more corrugations to form a seal receiving recessed spigot on the piece of pipe.
    Type: Grant
    Filed: April 8, 2005
    Date of Patent: July 12, 2011
    Inventors: Manfred A. A. Lupke, Stefan A. Lupke
  • Publication number: 20110162210
    Abstract: The present invention pertains to an electric-mechanical portably held and operated pipe cutting tool with hidden non-exposed blades that cut a various range and makeup of cylindrical pipe using a duality of synchronized perpetually designed blade motions within a drum shaped compartment which comprises these same blades mounted on a squirrel cage frame of which moves independently and opposite of the blades while sharing the same source of mechanical power.
    Type: Application
    Filed: September 24, 2010
    Publication date: July 7, 2011
    Inventor: Richard Holt Poindexter
  • Publication number: 20110107601
    Abstract: A rod cutter apparatus includes a rod holding plate having a rod opening for receiving a rod to be cut; a cutting member having a central opening defined by a cutting edge, the central opening being substantially aligned with the rod opening; and a drive assembly connected between the rod holding plate and the cutting member to cause oscillation of the cutting member relative to the rod holding plate, wherein oscillation of the cutting member relative to the rod holding plate cuts a rod in the rod opening.
    Type: Application
    Filed: November 9, 2010
    Publication date: May 12, 2011
    Applicant: VERMONT INSTRUMENT MAKERS
    Inventors: Lawrence Crainich, Joseph E. Trabka
  • 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: 20110078905
    Abstract: A hand-held cutting tool is described which is used to readily cut or sever flexible pipe or tubing. The tool features one or more openings in the body of the tool sized to accommodate pipe or tubing to be cut. The tool is used to cut tubing by inserting the tubing into one of the apertures. A retractable blade is urged against the tubing and the tool then orbited about the tubing and/or the tubing rotated until the blade severs the tubing.
    Type: Application
    Filed: October 6, 2009
    Publication date: April 7, 2011
    Applicant: EMERSON ELECTRIC CO.
    Inventors: Steven M. Macsay, Glen R. Chartier
  • Publication number: 20110010946
    Abstract: A pipe cutting and chamfering tool comprises one or more cutting portions for severing the pipe into two portions; one or more chamfering portions for chamfering the edges of said pipe portions; wherein the cutting and chamfering portions is or are configured to be driven.
    Type: Application
    Filed: March 19, 2008
    Publication date: January 20, 2011
    Inventor: Mervyn Wilson
  • Publication number: 20110005084
    Abstract: A power tool, such as a pipe cutter, includes a rotatable cutting head assembly, an electric motor connectable to a rechargeable battery, and a controller. The controller is configured to monitor the state of charge on the battery, compare the state of charge to one or more thresholds, and prevent or limit operation of the power tool when the state of charge is less than or equal to one or more of the thresholds. In some embodiments, the threshold includes the state of charge required to cut a pipe, the state of charge required to return the cutting head assembly to a home position, and a state of charge indicative of an overdischarged condition of the battery. In some embodiments, the controller is configured to detect when the pipe cutter has completed cutting the pipe and returns the cutting head assembly to the home position.
    Type: Application
    Filed: August 27, 2008
    Publication date: January 13, 2011
    Inventors: Troy C. Thorson, Daniel J. Alberti, Thomas R. Bednar, John S. Scott, Scott Anderson
  • Patent number: 7845080
    Abstract: A tubing cutter apparatus including a rotary cutting mechanism having an open area for receiving a length of tubing and a cutting blade for engaging the tubing may be driven by a rotary power source such as a handheld power tool or a self-contained drive motor. The apparatus includes a gear system for rotating the cutting mechanism about the tubing and a coupling mechanism for coupling the rotary power source to the gear system. A clamp comprising a slotted tubular plate spring protruding from a handle case of the apparatus in longitudinal alignment with the open area of the cutting mechanism enables the apparatus to clampingly engage a length of tubing to be cut by pushing flanged edge walls of the slot against the length of tubing, which may be in a location with limited accessability, such as within the wall of a structure.
    Type: Grant
    Filed: December 26, 2007
    Date of Patent: December 7, 2010
    Inventor: Gustav M. Nasiell
  • Publication number: 20100205809
    Abstract: The invention relates to a pipe disconnecting device, comprising a disconnecting device, which has a rotary body. The rotary body comprises a tool carrier for a disconnecting tool. A protrusion projects transversely to the rotational axis of the rotary body away from the rotary body or away from the tool carrier. At least one handle is attached to the protrusion, the handle extending across a region of the surface of the protrusion and forming a reach-through opening between the handle and the surface of the protrusion for a hand reaching for the handle.
    Type: Application
    Filed: January 28, 2008
    Publication date: August 19, 2010
    Applicant: Illinois Tool Works, Inc.
    Inventors: Andreas Lier, Markus Tamm
  • Publication number: 20100186235
    Abstract: A portable pipe cutter assembly in accordance with an embodiment of the present application includes a cutting blade that is mounted to move up and down in a vertical plane to cut a pipe. The assembly may include a cradle that supports a lower part of the pipe to prevent deformation as it is being cut. The cutting blade is preferably moved by a battery operated motor.
    Type: Application
    Filed: January 26, 2010
    Publication date: July 29, 2010
    Inventors: Eric Davis Schwartz, Frederick A. Hall
  • Publication number: 20100154223
    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: Application
    Filed: December 20, 2008
    Publication date: June 24, 2010
    Inventor: Ching-Su Chiu
  • Publication number: 20100088898
    Abstract: A pipe cutter for cutting a pipe includes a cutting head assembly having a first carriage and a second carriage spaced apart to define a cutting area. The first carriage supports a cutting mechanism, and the second carriage is configured to support a pipe within the cutting area. The carriages have a locked state and an unlocked state such that when the carriages are in the unlocked state, the carriages are movable relative to each other and biased into the cutting area. The pipe cutter also includes a drive assembly configured to rotate the cutting head assembly and a locking mechanism configured for changing the carriages from the unlocked state to the locked state and for holding the carriages in the locked state. The locking mechanism includes an actuation member rotatably coupled to the first carriage.
    Type: Application
    Filed: March 14, 2008
    Publication date: April 15, 2010
    Inventors: Troy C. Thorson, Daniel J. Alberti, Thomas R. Bednar, John S. Scott, Scott Anderson
  • Publication number: 20090199407
    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: Application
    Filed: April 9, 2009
    Publication date: August 13, 2009
    Inventor: Milisav Lazarevic
  • Publication number: 20090044343
    Abstract: A pipe-cutting tool includes first and second scissor members pivotally connected to one another where the first scissor member has both a first distal cutting portion with a distal polyvinyl-chloride-pipe cutting blade shaped and of a material for cutting a polyvinyl-chloride pipe and a first proximal grasping portion that has a first outer side shaped to support at least one finger of a user's hand a second inner side having an intermediate portion with a first concave gripping surface having gripping protrusions.
    Type: Application
    Filed: August 12, 2008
    Publication date: February 19, 2009
    Inventor: Wendy Nicole Grave
  • Publication number: 20080229584
    Abstract: Pipe cutting apparatus (2) in which a pipe is clamped in a holder (4) and cut transverse to its longitudinal axis by a cutting head 6. The cutting head (6) is supported on the holder (4) and is rotatable around the pipe to cut the pipe wall with a blade (38). The blade (38) is advanced radially by an indexing mechanism (40) in response to rotation of the cutting head (6) around the pipe. The indexing mechanism (40) has a snail cam (44) rotatable to advance the blade (38) in response to indexing movement of a ratchet (48) controlled by a pawl (50) mounted on the holder (2) to advance the ratchet (48) on completion of each revolution of the cutting head (6). The blade (38) is withdrawn when the pipe is cut and has a stop (60) that engages a cut-out (61) in the snail cam (44) to block indexing movement of the ratchet (48) and re-set the cutting head (6).
    Type: Application
    Filed: November 3, 2006
    Publication date: September 25, 2008
    Inventor: Benjamin Ronald Walter Fermor Shepherd
  • Patent number: 7406769
    Abstract: A portable rechargeable apparatus for cutting a pipe with a collar having a throughbore for receiving pipe therein with a blade positioned within the throughbore for cutting the pipe. A gear teeth exteriorly positioned on the housing whereby a drive mechanism having an electric motor driving a gear and spaced apart arms for receiving the collar can rotatively drive the collar for cutting the pipe.
    Type: Grant
    Filed: August 2, 2004
    Date of Patent: August 5, 2008
    Inventor: Richard Toussaint
  • Patent number: 7275320
    Abstract: A tube cutter having a relative movement generating portion including a relative movement generating portion, a tube cutting base and a tube cutting slider. A manual input portion of the relative movement generating portion is to be held by a user's hand. A cutting blade, two auxiliary rollers and a feeding spring are disposed between the tube cutting base and the tube cutting slider. After the user applying a holding force, the pushing plate will compress the spring in the tube cutting slider so that the cutting blade feeds in. In case the applying force is too large, the entire tube cutting base and the cutting slider will be locked via the stopping plate. Thereby avoiding an over-applying force destroying the pipe to be cut. The tube can be automatically feed in or feed in by a holding force of a hand.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: October 2, 2007
    Inventor: Tai-Hung Lee
  • Patent number: 7257895
    Abstract: An apparatus for cutting workpieces adapted to engage the workpiece in at least four points of surface engagement. The apparatus has a clamping mechanism designed to be fastened to the workpiece. The clamping mechanism has a tool unit attached which includes adjustment means for displacing the tool unit relative to the clamping mechanism towards or away from the workpiece. The clamping mechanism has a frame element and arms extending from the clamping mechanism. Each of the four arms includes a bearing wheel. Each of the wheels may be used to engage a workpiece to retain its position while it is being cut.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: August 21, 2007
    Assignee: Exact Tools Oy
    Inventors: Seppo Makkonen, Mika Priha
  • Patent number: 7020967
    Abstract: A rod cutting device includes a cutting head including a stationary cutting blade and a movable cutting blade for cutting off a waste part of a rod, and a waste part holding mechanism disposed near a cutting operation completing position, toward which the movable cutting chip is moved toward complete a rod cutting operation, to hold the part of the rod that has been cut off. The waste part holding mechanism employs a magnetic holding member for holding a waste part of a magnetic material or a resilient holding member for holding a waste part of a nonmagnetic material. The part of the rod that has been cut off is held and prevented from dropping by the waste part holding mechanism.
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: April 4, 2006
    Assignee: Kabushiki Kaisha Ogura
    Inventor: Kiyoshi Kimura
  • Patent number: 6671962
    Abstract: A tool for cutting a plastic pipe includes an annular collar having a fixed inner diameter which adapted to be slidably positioned on and encircling the plastic pipe. The tool further includes a cutting member pivotably attached to the annular collar an alignment ring having a fixed inner diameter which is adapted to be slidably positioned on and encircling the plastic pipe abutting the annular collar. The tool includes an element for maintaining the alignment ring in temporary engagement encircling the pipe, with the annular collar abutted next to the alignment ring.
    Type: Grant
    Filed: June 4, 2001
    Date of Patent: January 6, 2004
    Inventor: Abe Watamura
  • Patent number: 6637115
    Abstract: A cutting head for a portable, hand-held, power-operated pipe cutter is constructed with at least one channel in a rotating mounting plate assembly, 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 so as to ensure that driving engagement therebetween is constantly maintained.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: October 28, 2003
    Inventors: Richard T. Walsh, Richard T. Walsh, Jr.
  • Publication number: 20030079349
    Abstract: An apparatus for paring tubular articles (R), especially for plastic tubes, has at least one support unit (10) for supporting the article (R) to be pared, a paring unit (40) which has a paring head (44) with at least one blade assembly (46) and at least one guide assembly (48), and a carrier unit (70) to which the support unit (10) and the paring head unit (40) are held in mutually spaced relationship. The paring head (44) is pivotable about a pivot axis (50) which extends at least approximately perpendicularly to the plane defined by the support unit (10) and the paring unit (40).
    Type: Application
    Filed: October 17, 2002
    Publication date: May 1, 2003
    Applicant: PF Schweisstechnologie GmbH
    Inventor: Bernd Merle
  • Publication number: 20020166237
    Abstract: A rod cutting device includes a cutting head including a stationary cutting blade and a movable cutting blade for cutting off a waste part of a rod, and a waste part holding mechanism disposed near a cutting operation completing position, toward which the movable cutting chip is moved toward complete a rod cutting operation, to hold the part of the rod that has been cut off. The waste part holding mechanism employs a magnetic holding member for holding a waste part of a magnetic material or a resilient holding member for holding a waste part of a nonmagnetic material. The part of the rod that has been cut off is held and prevented from dropping by the waste part holding mechanism.
    Type: Application
    Filed: May 7, 2002
    Publication date: November 14, 2002
    Inventor: Kiyoshi Kimura
  • Publication number: 20020121173
    Abstract: A tubing cutter having a body rotatably supporting a cutter element and a pair of rollers adjacent an opening. The tubing is placed in the opening with the rollers and cutter element in simultaneous contact. A knob and threaded shaft advance movement of a cutter holder as the body is rotated or swung about the axis tubing to cause cutting of the tubing. Stop elements are mounted relative to the cutter element to prevent cutting prior to complete severing of the tubing to permit manual breaking of the tubing to achieve a smoother end.
    Type: Application
    Filed: March 2, 2001
    Publication date: September 5, 2002
    Inventor: Robert Filipo
  • Patent number: 6014810
    Abstract: A portable cutter for cutting materials such as conduit tubing made of metal or other semi-rigid material including a motor, a power source for the motor, a saw blade, gripping mechanism for gripping an object to be cut, mechanism for automatically connecting the power source to the motor for a cutting operation, and mechanism for automatically activating the gripping mechanism.
    Type: Grant
    Filed: March 25, 1994
    Date of Patent: January 18, 2000
    Assignee: Etcon Corporation
    Inventors: Kent L. Earle, Greg L. Lauriano
  • Patent number: 5956853
    Abstract: A tool for cutting an elongated pipe is disclosed which includes an annular collar selectively positionable on the pipe for slidable movement along the length of the pipe to a predetermined position and separate selectable rotational movement about said predetermined position. A cutting member is pivotably mounted to the annular collar, so that as the annular collar and cutting member are rotated about the predetermined position, a circular score is formed on the pipe. Further rotation of the cutting tool results in cutting of the pipe through the score. In a preferred embodiment of the present invention, the annular collar includes a radial expansion slot for expansion of the collar and frictional engagement of the pipe to be cut, the cutting member includes a blade mounted between opposing first and second blade holding members and a biasing spring attached to the first blade holding member with a fastener.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: September 28, 1999
    Inventor: Abe Watamura
  • Patent number: 5829142
    Abstract: A motorized tool allows one or more operations to be performed on a workpiece, such as cutting and/or conditioning a surface of a pipe or a pipe fitting or receptacle. The motorized tool includes a cutter and/or one or more rotatably driven accessories, such as workpiece surface conditioners or brushes. The motorized tool further includes a drive mechanism used to rotate the workpiece against the cutter and to rotate the rotatably driven accessories. In one example, the drive mechanism rotates drive rollers that contact a workpiece and rotates the workpiece against a cutting element or edge of the cutter. In another example, the motorized tool includes an internal workpiece surface conditioner and an external workpiece surface conditioner that are also rotated by the drive mechanism to clean, debur or otherwise condition internal and external workpiece surfaces. The motorized tool can be hand-held or hand-operated and includes opposing pivotable members having handle portions.
    Type: Grant
    Filed: August 14, 1996
    Date of Patent: November 3, 1998
    Inventor: Timothy John Rieser
  • Patent number: 5815925
    Abstract: Simple, inexpensive and efficient tip cutting assemblies for allowing an operator to cut the tip of a fresh cartridge of caulk prior to insertion in the barrel. The tip cutting assemblies are provided in the context of two general types of caulking guns having either a metal enclosed frame or single piece molded plastic open frame. In one embodiment for a molded open-frame gun, the cartridge tip cutting assembly includes a cutting bracket attached to the frame and having an aperture there through for insertion of the cartridge tip. The cutting assembly also includes a blade assembly attached to the trigger and extending a blade outwardly between the frame and cutting bracket. Another embodiment for a closed metal-frame gun includes an aperture through a side of the housing for insertion of a cartridge tip, and a tip-cutting member formed with a through-hole to pass the plunger shaft and riding thereon within the housing.
    Type: Grant
    Filed: July 12, 1996
    Date of Patent: October 6, 1998
    Inventor: Peter J. Chang
  • Patent number: 5425395
    Abstract: The tapping apparatus includes a body that receives a cutter and sleeve. The cutter and sleeve advance together to form an opening in the sidewall of a main conduit about which the body is secured. The sleeve includes external threads that grip into the conduit sidewall. Thereafter, retraction of the cutter leaves the sleeve in place to secure the tapping apparatus to the conduit and establish fluid communication therethrough. The cutter and sleeve preferably have different thread pitches so that the sleeve advances at a slightly faster rate than the cutter. This facilitates sealing engagement between the external surface of the main conduit and the body. Additionally, a one-way drive arrangement is provided between the sleeve and cutter so that once the sleeve is positioned in place, the cutter can be removed without altering the location of the sleeve.
    Type: Grant
    Filed: September 13, 1994
    Date of Patent: June 20, 1995
    Assignee: Perfection Corporation
    Inventor: Michael Brennan
  • Patent number: 5394776
    Abstract: A portable cutting tool has an annular frame for surrounding the pipe. A rotatable ring on the frame carries a radially fed cutter which includes a bit subassembly for cutting the tubular member. The bit subassembly is indexed in response to orbital movement of the cutter. The bit subassembly includes a bit planar support block which has a dimension (as measured parallel to the longitudinal axis of the tubular member being cut) which is less than that of the bit which it carries. In such a manner, a channel passageway may be formed between the bit support block and the tubular member being cut as the bit penetrates into the tubular member during the cutting operation such that lubricating/flushing fluid may be directed to the bit.
    Type: Grant
    Filed: April 13, 1993
    Date of Patent: March 7, 1995
    Assignee: Wellcutter Inc.
    Inventor: Jerry H. Robinson