Abstract: A pipe cutting apparatus has a rigid annular frame adapted to be coupled to a pipe to be cut. A cutting blade for cutting the pipe is removably associated with the annular frame. A mechanism is included to move the cutting blade with respect to the annular frame about an axis of revolution designed to coincide with a longitudinal axis of the pipe.

Abstract: A tube cutter includes a main device, a blade and a controller. The main device includes a fixed member and a movable member, wherein the movable member is movably connected to the fixed member, and a cutting space is formed between the fixed member and the movable member. The blade is fixed to the main device, and the blade has a blade portion in the cutting space. The controller, which is provided on the main device, can be operated to move the movable member for changing a size of the cutting space.

Abstract: Cutting devices and associated methods are described. In one aspect, a cutting device includes an annular support body defining an axial space into which a pipe to be cut can be inserted, the body formed of a rigid material and including a blade-bearing portion and a non-blade-bearing portion, wherein the blade-bearing portion is secured to the non-blade-bearing portion by a hinge mechanism allowing the two portions to be movable between an open position in which a pipe can be inserted, and a closed position in which the pipe is engaged by the body, wherein a part of the blade-bearing portion spaced from the hinge mechanism includes a blade that protrudes radially inwards of the body, such that in use the urging of the two portions towards the closed position urges the pipe against the blade so that rotation of the cutting device around the pipe cuts the pipe.

Abstract: A tool is configured for preparing an end of a pre-insulated tubing bundle having a central tube having a diameter and an outer insulation covering have a diameter. The tool includes a body having first and second body sections joined to one another and movable between an open position and a closed position. The body sections, when joined to one another define a circular central opening. The circular central opening has a diameter about equal to the diameter of the outer insulation covering. A cutting blade is positioned in one of the first and second section sections extending inwardly of the circular central opening a distance equal to one-half of a difference between the diameter of the outer insulation covering and the diameter of the central tube.

Abstract: A pipe enlarging device includes a base, an operation unit and a clamping unit. The clamping unit is received in the base and includes movable front, rear, left and right clamps, multiple resilient members and a front threaded rod. The front, rear, left and right clamps are resiliently movable when the front threaded rod is rotated so as to form an adjustable clamping area between the front, rear, left and right clamps. The clamping area is used to clamp pipes of different sizes. The operation unit includes a top threaded rod with a cone-shaped member which is used to enlarge the inner diameter of the pipes.

Abstract: A working head for a hydraulic power tool. The working head includes a head frame and a first moveable die head configured to move along the working head frame. The first moveable die head is configured to receive a first moveable die comprising a first body length and a second die head is adapted to receive a second die comprising a second body length. At least one of the moveable die or the stationary die comprises an elongated die.

Abstract: Machining guides and methods relating thereto are described. One example of the machining guide, according to the present arrangement, includes: (i) two or more frames, each of which includes—(a) a first guide member including first multiple plates; (b) a second guide member including second multiple plates; and (c) a pivoting connection pivotably connecting the first guide member and the second guide member, and wherein, during an operative state of the machining guide, one or both of the first and the second guide members of two or more of the frames pivot about the pivoting connection to allow two or more of the frames to be disposed around the workpiece; and (ii) one or more spacer plates being disposed between each of the frames and define a kerf between each of the frames such that, during the operative state of the machining guide, a tool through the kerf is capable of machining the workpiece.

Abstract: A saw guide can include pivotally connected arcuate sections having a plurality of slots formed therein to receive and guide saw blades as they cut a workpiece, such as a pipe or tube. The slots are of varying width so that the saw guide can be used with different saws. For example, the saw guide can include a first slot sized to receive and guide the blade of a reciprocating saw, and a relatively narrower second slot, sized to receive the blade of a portable band saw. The saw guide can include a locking mechanism to securely hold the saw guide on the workpiece, and a stopping mechanism for preventing the saw blade from cutting into the saw guide.

Abstract: According to an aspect of the present disclosure, a low profile travelling pipe cutter is provided which is adapted to perform at least one of cutting and beveling a hollow vessel while traveling around the vessel using a cutting tool mounted thereon. The pipe cutter includes inner and outer carriages, a capstan assembly attached to the outer carriage to which a feed cable is attached, and rollers attached to the outer carriage to which a tension cable is attached. The force adjustment assembly changes the vertical position of the outer carriage relative to the inner carriage to compensate for the pipe cutter going inwardly and outwardly as it travels around a hollow vessel in order to maintain constant pressure caused by the lever tension interface. A guard assembly is provided for covering and uncovering the cutting tool during cutting.

Abstract: Devices and methods for bending or cutting implants are disclosed herein. In some embodiments, an instrument can include a rotatable drive shaft that urges first and second portions of a modular bending or cutting template toward one another to bend or cut an implant disposed between the template portions. A linkage assembly can be included to provide a mechanical advantage in urging the template portions toward one another. In some embodiments, an instrument can include a rotatable drive shaft that, depending on direction of rotation, pushes or pulls a first modular template portion with respect to a second modular template portion to bend an implant disposed between the template portions in one direction or another direction. In some embodiments, an instrument can include a worm drive that rotates a cutting wheel with respect to a cutting plate to cut an implant inserted through openings formed in the cutting wheel and the cutting plate.

Abstract: According to typical inventive practice, a cable is grasped by a Kellum grip and is positioned through the topside “V”-notch of an “M”-structure. Two wires engage pulleys and a ratchet distanced from the pulleys. The pulleys are joined with a grip plate, attached at an axial end of the Kellum grip. The ratchet is joined with a ratchet plate, proximate and/or attached to the “M”-structure. The “M”-structure has joined therewith three blade wheels having cutting orientations in the same linear direction. The blade wheels are situated interiorly and perpendicularly in correspondence to the geometric sides of the inverted triangle defined by the “V”-notch. Each blade wheel is adjustable to suit the diameter of the cable positioned through the “V”-notch. Ratcheting of the wires moves the ratchet plate and hence the “M”-structure, resulting in creation via the blade wheels of three parallel slices in the cable along its axis.

Abstract: A device for cutting a preferably thick-walled, extended pipe to length, has at least one cutting tool and a receiving unit for the cutting tool. The cutting tool is radially movable in relation to the extrusion axis and is rotatable via further means about the pipe to be cut to length, in order to cut the pipe to length. The receiving unit may be connected by means of a receiving disc to a sleeve via a ring element, wherein linear guiding elements are arranged on said sleeve parallel to the extrusion axis, and wherein at least four linear guiding elements are evenly distributed around the circumference of the sleeve.

Abstract: Pipe machining apparatuses and bearing assemblies are provided. In one aspect, a pipe machining apparatus includes a frame, a tool carrier, a first roller bearing and a second roller bearing. The tool carrier is coupled to and movable relative to the frame and defines a race therein. The first roller bearing includes a first shaft and a first roller rotatably coupled to the first shaft. The first roller is at least partially positioned in the race and is rotatable about a first roller bearing axis adapted to remain substantially fixed relative to the frame. The second roller bearing includes a second shaft and a second roller rotatably coupled to the second shaft. The second roller is at least partially positioned in the race and is rotatable about a second roller bearing axis. The second roller bearing is adjustable to move the second roller bearing axis relative to the frame.

Abstract: A portable apparatus that provides electrical power receptacles and device charging ports. The portable apparatus has a base member and a plurality of post members connected to the base member. Each post member has an electrical power receptacle that provides electrical power and an electrical power device having a device charging port that provides a voltage suitable for charging and powering devices such as cell phones, cameras, iPads, Ipods and similar devices. In a preferred embodiment, the electrical power device includes an additional electrical power receptacle. Each post member has an interior region and electrical wiring located with the interior region which provides electrical power to the electrical power receptacles and the electrical power device. The portable apparatus also has a top member connected to the post members and an intermediate support member that is attached to the post members and located between the top member and the base member.

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.

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.

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.

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.

Abstract: A pipe cutter and methods are shown. Examples of pipe cutters allow a user to only rotate the pipe cutter back and forth by a small number of degrees sufficient to provide each path cut by a number of cutter wheels to intersect. Cutter wheels with shoulders are shown, that keep cutting blades from penetrating to an inner diameter of a protective housing.

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.

Abstract: A pipe cutter with chamfering device including a pipe cutting portion and a feed portion, the internal feed portion includes a chamfering device, a main body of the chamfering device is a handheld grip of the feed portion; the chamfering device has chamfering knives with an annular arrangement, edges of the chamfering knives form a taper angle; the chamfering device is demountable. The pipe cutter with chamfering device according to the present invention can be used to cut pipe, chamfering internal wall of the pipe.

Abstract: A precision cutting system for efficiently cutting through an external member (i.e. conduit, etc.) without damaging internal components (i.e. wires, cables, etc.). The precision cutting system generally includes a first support structure including a first inner end and a first outer end, a second support structure including a second inner end, a second outer end and an opening extending between thereof, wherein the second support structure attaches to the first support structure and a guide structure extending from the second support structure opposite the first support structure. The first support structure attaches to a cutting tool, wherein the blade of the cutting tool extends between the first inner end and the first outer end of the first support structure, through the opening of the second support structure and adjacent the guide structure.

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.

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.

Abstract: A pipe cutter according to the invention has an inner head part which, in the working position, rotates about a pipe which is clamped in the inner head part and is to be processed. Integrated in the inner head part are a spring-mounted cutting wheel head (8) having a cutting wheel (7) for cutting the pipe and a plurality of support rollers (9) in spring-mounted receptacles (10). The arrangement and formation of cutting wheel (7) and support rollers (9) is such that the clamped pipe is at right angles to the cutting wheel (7), and a right-angled cut is thus achieved. Moreover, a defined feed cutting force can be set by the spring mounting of cutting wheel head (8) and support roller receptacles. During cutting, the pressure on the pipe decreases with increasing cutting depth, and the pipe can thus be cut cleanly and without burrs.

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.

Abstract: A surgical rod scorer is provided. The surgical rod scorer includes a handle having an elongated shaft extending therefrom defining a longitudinal axis therethrough. A knob supported on a proximal end of the handle is movable about the longitudinal axis. A reciprocating member is operably disposed and translatable within the handle and the shaft of the surgical rod scorer. A drive member operably coupled to the proximal end of the reciprocating member and to the knob is configured to translate the reciprocating member along the longitudinal axis. The shaft and the reciprocating member including a respective distal end and operable head configured to support one or more cutting elements thereon. The reciprocating member including the one or more cutting elements supported thereon is translatable from a retracted position, to an extended position for scoring surgical rod.

Abstract: The invention as presently conceived discloses a plumbing pipe cutter with an integral means of directing away residual water after a pipe is cut. The device comprises a conventional, low profile pipe cutter that is commonly used to cut copper water supply lines. Other cutters designed for polyvinylchloride (PVC) or other types of piping can likewise be adapted. The apparatus is further comprised of a transparent shield around the entire perimeter of the cutter and extending onto either pipe. At one end of the shield, approximately 8-10 inches from the cutter, the transparent material is flexibly gathered and routed to a short section of PVC tubing. The distal end of the tubing has a hose connector onto which a standard hose would be attached. When the apparatus is fully installed, residual water in cut pipes is collected and directed away without harming the surrounding areas.

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.

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.

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.

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.

Abstract: A method and apparatus for cutting conduit. The apparatus preferably comprises a motor operated cutting blade which is slideable relative to a fixture for holding the conduit. The fixture is preferably spring loaded and preferably sufficiently grips the conduit so that only one hand is needed to operate the saw and cut the conduit. Alternatively the conduit may be held by one hand while the saw is operated by the other hand. The saw is preferably cordless.

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.

Abstract: The planetary tubing cutter of the invention provides a gearing assembly having a pair of ring gears and a number of pinions with a blade affixed to each pinion. The ring gears are parallel to one another and are individually driven. The pinions are rotatably mounted to a side surface of one ring gear and engage a sun gear assembled to the other ring gear. When the ring gears rotate at the same speed, the pinions and blades do not revolve around their respective axes, and when one ring gear rotates at a speed different from the other ring gear, the pinions and blades revolve about their respective axes, intercepting and cutting a tube passing through an axial passage through the ring gears.

Abstract: There is disclosed an improved tubing cutter apparatus which provides easier and faster modes of operation. It includes a rotary cutting mechanism having an open area for receiving a length of tubing and a cutting blade for engaging the tubing. It is suitable for use with a handheld power tool or may have a self contained driving element. A gear system is provided for causing rotation of the cutting mechanism about the tubing and included is a coupling mechanism for coupling the rotary driving element to the gear system for rotating the cutting mechanism.

Abstract: A cutter is capable of cutting a pipe-shaped object so as to produce a cut surface which is almost perfectly perpendicular to a longitudinal direction of the pipe-shaped object. A blade has a disc-shaped base plate having a blade edge on an outer periphery of the base plate, a level surface perpendicular to an axis of rotation of the base plate, and a sloped surface opposite the level surface and inclined with respect to the level surface so that a thickness of the blade increases toward a central portion of the blade. The sloped surface is shaped such that an angle of inclination of an outer peripheral portion of the sloped surface with respect to the level surface is larger than an angle of inclination of a remaining portion of the sloped surface with respect to the level surface. The level surface has fine grooves thereon.

Abstract: A pipe-cutting tool is provided. This tool includes a body; a track on the middle portion of the body; a first moveable carriage mounted on the track, wherein the first carriage includes first and second rollers mounted therein; a handle mounted in the rear portion of the body, wherein the handle is connected to the first moveable carriage; a second moveable carriage slidably mounted on the track, wherein the second moveable carriage further includes a rotatable cutting blade mounted therein; a carriage stop mounted on or formed integrally with on the front portion of the body, wherein the carriage stop is adapted to receive therein a portion of the second moveable carriage; and a biasing member mounted between the carriage stop and the second moveable carriage, wherein the biasing member exerts substantially continuous force on the second moveable carriage for urging the rotatable cutting blade against a pipe being cut.

Abstract: A chain pipe-cutter is made up of chain links joined together by cross bars, the cross bars further engage cutting wheels. A pair of adapters each having a U-shaped body with a pair of longitudinally oriented legs joined together by a back portion from which the legs depend. The legs have holes so the adapters may engaged with one of the chain links at a terminal position on the chain by cross bars. The back portions providing a groove having a longitudinal orientation so that with the chain wrapped around a brittle pipe the adapters are positioned in near adjacency, and may be further forced into convergence by a tool engaging each of the longitudinal grooves to sever the pipe.

Abstract: The invention relates to a pipe cutting apparatus, comprising a body, a cutter head (1) bearing-mounted rotatably on the body, having a centre rotation axis (C) and having a cutting gap (2) which opens radially sideways for receiving a pipe to be cut, pipe securing elements (8) for fixing the pipe on said centre rotation axis (C) immovably relative to the body, the cutter head (1) being provided with support rolls (21) for supporting the pipe during a cutting process. The cutter head (1) includes a cutting blade (22) in the shape of a sharp-edged disk, which, during rotation of the cutter head (1), is adapted to be advanced towards the centre rotation axis (C) for cutting the pipe by chipless cutting. The cutter head (1) is further provided with a shifting and locking mechanism (12-20, 28-40) for the support rolls (21), which, regardless of the diameter of a pipe to be cut, shifts and locks the support rolls (21) with a single drive and/or control against the surface of a pipe for said cutting support.

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).

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.

Abstract: The present disclosure provides an apparatus and method of combining pliers and tubing cutters. The resulting tools offers synergistic results that are unachievable with separate tools. In at least one embodiment, the tubing cutter pliers can be operated by rotating the pliers' handles, cutting the tubing with a cutter wheel on the pliers, and gripping the tubing using the same pliers as was used to cut the tubing. Some intervening steps, particularly, removal of the tubing cutter and replacement of the tubing cutter with pliers, can be eliminated with a resultant increase in efficiency and productivity. In some embodiments, an adjusting mechanism can be provided to offer increased control over the amount of pressure exerted on the tubing by the tubing cutter pliers during the cutting process.

Abstract: A handheld, portable tubing cutter driveable by a handheld power drill is provided. The tubing cutter includes a support cylinder having distal and proximal ends. The proximal end of the support cylinder is adapted to engage the drill chuck of an ordinary handheld power drill. A cylindrical cutting head, known in the art, is removably connected to the distal end of the support cylinder. The longitudinal axis of the support cylinder is aligned with, and parallel to, the longitudinal axis of the tubing to be cut. Once the cutting head is placed on the tubing to be cut and the support cylinder is connected to the cutting head, the device is actuated and operates with a minimized working profile.

Abstract: The planetary tubing cutter of the invention provides a gearing assembly having a pair of ring gears and a number of pinions with a blade affixed to each pinion. The ring gears are parallel to one another and are individually driven. The pinions are rotatably mounted to a side surface of one ring gear and engage a sun gear assembled to the other ring gear. When the ring gears rotate at the same speed, the pinions and blades do not revolve around their respective axes, and when one ring gear rotates at a speed different from the other ring gear, the pinions and blades revolve about their respective axes, intercepting and cutting a tube passing through an axial passage through the ring gears.

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.

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.

Abstract: The powered tubing cutter is a hand held, mechanical device driven by a motor for cutting tubing/piping. The device comprises a housing, a drive plate, a main drive shaft, a cutting assembly having a cutting blade, a cam plate and a chain drive secured to a motor housing, having a handle, by a mounting bracket. The chain drive is powered by the motor, which causes the main drive shaft to rotate. The cutting assembly is pivotally secured to a pin on the main drive shaft. The pipe/tube to be cut is placed into the hole in the center of the housing and the main drive shaft. As the cutting assembly rotates with the main drive shaft the cam plate forces the cutting blade into cutting engagement with the tube/pipe.

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.

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.