Abstract: A soil pipe cutting tool is described. The tool includes a telescoping housing assembly, a feedscrew in threaded engagement with the housing assembly, and a cutting chain. The cutting tool can be powered by an impact driver. Also described are rotary powered tools. In certain versions, the tools include torque limiting provisions to prevent transfer of excessively high levels of torque to a working end of the tool. Various methods of use are also described.

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.

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.

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.

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. Therefore, this invention has advantages of the handle being separable from or combinable with the tube cutter as needed, and quick, easy and convenient switch between different usage modes of the tube cutting device.

Abstract: A hand-held and hand-operated cutting tool particularly well suited for cleanly and quickly cutting plastic pipe or tubing, rubber hose, or the like is provided. The tool has a blade which is easily manually removed from and replaced into the cutting tool without the use of additional tools. The blade is slid into the tool and then rotated slightly into an initial operating or loaded position whereat a blade pivot pin may be inserted into the tool and through a hole provided in the blade. During use, the blade is rotatable in increments or steps from a retracted position in which it is substantially enclosed within the tool housing to a cut off position in which it cooperates with a stationary cradle anvil so as to sever the article to be cut. A ratchet drive interconnects a movable handle and the blade so as to incrementally drive the blade towards its cut off position upon manipulation of the handle.

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 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: 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.

Abstract: Provided is scissors comprising a movable first handle unit; a stationary second handle unit including a bifurcated jaw, a pivotal blade in the jaw, a spring biased pivotal plate member in the jaw and including teeth, a gear and ratchet wheel assembly, and a spring biased pivotal pawl; and a spring biased lever including a pawl member engaged with the ratchet wheel. Continuously pivoting the first handle unit about the second handle unit by moving the first handle unit alternately back and forth in each action of pivoting the first handle unit toward the second handle unit will pivot the first and second protrusions counterclockwise, rotate the gear and ratchet assembly clockwise, and pivot the teeth counterclockwise to cut a pipe anchored in the mouth.

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.

Abstract: A hand-held apparatus for cutting transversely a pipe using a slitter co-operating with rollers to produce a deepening cut, is formed of two half-shells mounted opposite around the pipe with adjustable clamping elements one at least supporting a slitter or radially mobile, in the cutting plane, and the other, at least two rollers rotating in the cutting plane and arranged in pair facing each slitter on the other half-shell to compensate the cutting force in the assembly rotation about the pipe resulting from the cooperation between a tangential driving tool and catching elements distributed over the outer surface or on the periphery of each half-shell.

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.

Abstract: The invention relates to an on-site pipe-cutter assembly which is intended for manual sectioning of rigid, large-diameter pipes located in narrow trenches. The pipe-cutter assembly includes two yokes (1,2) which are connected at their associated ends by tie bars (3) and nuts (4), the yokes including cutter wheels (5) and ratchet sectors (9) arranged at the periphery of the yokes (1,2), the ratchet sectors being concentric with the cutter wheels (5) and a lever (12) having with a forked end which is equipped with two pawls, the pawls making it possible to obtain changes in the angular position of the lever by 10.degree. to 15.degree. or by a multiple of this angle.

Abstract: A manual pipe cutter that comprises a cutting disk and a cutter-pressing jaw to press the cutting disk edgewise against a pipe to cut it, and is characterized by a pushbutton and gear arrangement for convenient operation and forceful pressing of the cutting disk edgewise against the pipe. This manual pipe cutter further comprises a body defining a cutting head portion and a handle portion, a cutting head rotatable in the cutting head portion of the body and cooperatively forming with it a pipe passage and an open mouth to position a pipe transversely into the pipe passage, a pawl and ratchet to rotate the cutting disk around the pipe, and means to release the movable jaw and return it to its outermost position.

Abstract: A self centering pipe cutting device having opposing cutting and roller support assemblies which are automatically advanced in concurrent, converging relationship as the cutting device is rotated about the pipe being cut. A ratchet and advancing gear adapt the device for use in restricted areas of movement and provides continuous advancement of the cutting member. A firm grip and concentric cutting path are maintained by track guides which operate to control the direction of cutter and roller assembly movement in a linear course during operation.

Abstract: A ratchet pipe cutter having a pipe-receiving body and a lever arm for turning the pipe-receiving body. The pipe-receiving body is cylindrical and has a turning gear at one end and cutting wheels for cutting pipe at the other end. The pipe-receiving body comprises two longitudinal portions joined by a hinge to allow the body to be opened and closed about a pipe. The hinge of said pipe-receiving body is located between the turning gear and the pipe cutting wheels. The lever arm has an annular interior groove for receiving the turning gear and a pawl for engaging the turning gear in a ratchet motion.

Abstract: A ratchet-type pipe cutter is provided for cutting pipes in close quarters. The pipe cutter includes a split-ring cutting head adapted to be clamped about the pipe to be cut, a cutter mounted on the head for cutting the pipe upon rotation of the cutting head, and a handle adapted to be coupled to the cutting head after it is clamped about the pipe for unidirectionally rotating the cutting head. A plurality of peripheral teeth is provided on the cutting head and at least one gripping element is provided on the handle for engagement with the peripheral teeth of the cutting head. The handle also includes a ratchet member spaced from the gripping element and adapted to drivingly engage the peripheral teeth upon rotation of the handle in a predetermined direction and to slip over the peripheral teeth in the opposite direction. The handle is designed to positively engage the cutting head to prevent accidental slippage of the handle off the cutting head.

Abstract: A tube cutter comprises an elongated handle formed in two longitudinal halves and having a C-shaped head at one end also formed into halves and defining an opening through which a tube can be inserted, a C-shaped body rotatably mounted within the two half portions of the head and comprising an opening of substantially the same width as the opening of the C-shaped head, a pawl and ratchet system formed at least between one of the contacting surfaces of the body with a half portion of the head, and a tube cutter assembly mounted on the body and including a tube cutter member mounted on the body, a tube abutment member slidably mounted in the body for radial movement towards and away from the cutter member, and control means mounted on the body to move the abutment member towards the cutter member to press a tube between the two members, such two members having a spacing therebetween in register with the openings of such body and head whereby a tube can be inserted through the registering openings in the body an

Abstract: A pipe cutter incorporating a ratchet handle. A tubular open-ended rigid body, adapted to surround the pipe to be cut, carries a cutting wheel and a jaw adjustable towards and away from the cutting wheel. An elongated handle has a ring member at one end rotatable within a peripheral groove of the tubular body. A pawl and ratchet system is arranged between the handle and the body, whereby back-and-forth rotation of the handle through a limited angle will cause step-by-step rotation of the body and cutter in one direction through at least 360.degree.. The body has a lateral opening which registers with the access opening between the jaw and the cutter. The ring of the handle also has a lateral opening which can register with the opening of the body in one angular position of the handle for the insertion of a pipe through the aligned openings in position within the body and between the jaw and the cutter.

Abstract: A pipe cutter for cutting installed pipes comprises a frame which can be fitted round the pipe and which carries a cutting tool and pipe engaging rollers; a feeding mechanism in the frame derives a drive from rotation of the frame around the pipe to feed the cutting tool into the pipe; a two-part ring is fitted around the pipe; and a one-way drive mechanism is provided between the ring and the frame, so that as the ring is reciprocated by means of a handle the frame is rotated to feed the cutting tool and so cut the pipe.