With Plural Selectively Usable Clamps (e.g., Tube Flarer) Patents (Class 72/317)
  • Patent number: 11198489
    Abstract: A rope clasp device for securing a rope eliminates the need for a knot in a rope by selectively clasping and encasing at least one portion of a rope in a toothed clamp. The rope clasp device comprises a base, at least one, but generally two swinging doors, and a lock. The swinging doors are pivotably coupled to the base in order to be moved between an open position and a closed position. In the closed position, a pair of channels for passage of a rope is defined between the base and the doors. The channels are defined by a plurality of clasping teeth to retain the rope therein.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: December 14, 2021
    Inventor: Benjamin Dodge
  • Patent number: 10940521
    Abstract: A swage mechanism operable to expand an inner diameter of tubing. The swage mechanism includes a housing defining a longitudinal axis, a plurality of jaws coupled to the housing and movable relative to the longitudinal axis for selectively gripping the tubing, and a ram including a cylindrical portion and a frusto-conical head portion. The frusto-conical head portion of the ram is insertable into the tubing to expand the inner diameter of the tubing.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: March 9, 2021
    Assignee: Milwaukee Electric Tool Corporation
    Inventors: James O. Myrhum, Jr., Noah Z. Fang
  • Patent number: 10702906
    Abstract: A pipe flaring device is described. The device includes a main body extending along a mainly longitudinal direction. The main body also includes a flaring unit. The flaring unit interacts with an end of pipe to be flared. The main body also includes a die carrier arranged at the front of the flaring unit; and a flaring die. The flaring die includes a center channel which houses the pipe to be flared. The device includes a conical inner surface whose tapered end diverges towards the flaring unit and so that the inner surface matches a conical outer surface of the flaring die.
    Type: Grant
    Filed: October 28, 2015
    Date of Patent: July 7, 2020
    Inventors: Massimo Scomazzon, Simone Tosin, Hemanuel Piva
  • Patent number: 10130986
    Abstract: A tube flaring tool, which is adapted to clamp a tube and align the tube with a punch driver, includes a carrier having a clamping assembly slot and a punch assembly slot; a clamping assembly received in the clamping assembly slot of the carrier to clamp a tube; and a punch assembly having a main member and a plurality of punches movably coupled to the main member. The main member is movably received in the punch assembly slot, so that the main member of the punch assembly is able to be moved to select one of the punches to flare the tube.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: November 20, 2018
    Assignee: Yung Chi Industry Co., Ltd.
    Inventor: Wu-Sheng Huang
  • Patent number: 9815027
    Abstract: Disclosed herein are aspects and embodiments of an apparatus for providing gas slugs in a liquid. In one example, the apparatus comprises a housing defining a chamber, a bell tube including a wall and an open upper end disposed within the chamber, a riser tube including a wall, an open lower end, and a flared open upper end disposed within the bell tube, and a conduit defined between the wall of the bell tube and the wall of the riser tube and in fluid communication with an internal volume of the riser tube.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: November 14, 2017
    Assignee: Evoqua Water Technologies LLC
    Inventors: Roger Phelps, Joan-Amanda Lenting, William E. Davis
  • Patent number: 9694410
    Abstract: A pipe expanding device includes: a clamping assembly including a pipe expanding end, an opposite connecting end, and a receiving space in communication with the pipe expanding end and the connecting end; a pipe expanding assembly movably disposed in the receiving space; a connecting member disposed at the connecting end; and an elastic member disposed in the receiving space and located between the pipe expanding assembly and the connecting member to push the pipe expanding assembly back toward the connecting end after the pipe expanding assembly is moved toward the pipe expanding end. The elastic member is hidden in the clamping assembly and capable of automatically pushing the pipe expanding assembly back to its original position. Therefore, the motion of the pipe expanding assembly won't be affected by the displacement of the pipe expanding tool, and the pipe expanding assembling therefore won't get bent or fall off.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: July 4, 2017
    Assignee: Yung Chi Industry Co., Ltd.
    Inventor: Wu-Sheng Huang
  • Patent number: 9630236
    Abstract: A pipe positioning device for pipe expander includes a mold positioning device defining therein a locating space, an axle located at an outer side of the mold positioning device, and a stop member including a barrel pivotally coupled to and movable along the axle, an extension arm extended from the barrel and a stop plate located at the distal end of the extension arm and turnable about the axle into the locating space to abut at a front end of a mold in the locating space for stopping against a pipe in the mold for expanding, facilitating quick pipe expanding.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: April 25, 2017
    Inventor: Chia-Chun Chang
  • Patent number: 9192739
    Abstract: An adjustable length catheter is disclosed. In some embodiments, the catheter is configured for use with a hub configured to couple to an end of the catheter. A cutting tool and/or a flaring tool may further be provided in connection with the catheter. In some embodiments, these tools are coupled to a body member. The catheter may be configured such that a user, for example a medical practitioner, may cut the catheter to a desired size as part of a therapy or other procedure.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: November 24, 2015
    Assignee: Merit Medical Systems, Inc.
    Inventors: Fred Lampropoulos, Jim Mottola, Brian Stevens
  • Patent number: 8869581
    Abstract: Compact tube and pipe expanders and flaring tools requiring reduced actuation force by a user. A flaring tool includes a flaring block and a yoke clampable to the flaring block by a clamping mechanism. The yoke includes a housing having a threaded release portion movable between a first position and a second position. A flaring cone of the yoke has a tapered flaring surface adapted to engage an internal surface of a tube and deform at least the engaged portion of the tube against the flaring block into a flared condition. A threaded feed screw is operatively coupleable to the flaring cone to move the flaring cone into engagement with the internal surface of the tube to deform it. The tool has a handle to rotate the feed screw.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: October 28, 2014
    Assignee: Irwin Industrial Tool Company
    Inventors: Joseph J. Houle, David Wortelboer
  • Patent number: 8544309
    Abstract: Apparatus, kits and methods for flaring an end of a stent that can then be placed within the ostium of a vessel are disclosed. Areas in which ostial stents with flared ends could be used may include, e.g., the left main artery, renal arteries, sub-clavian artery, right coronary artery, circumflex artery, et al.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: October 1, 2013
    Assignee: Mayo Foundation for Medical Education and Research
    Inventor: Gurpreet S. Sandhu
  • Publication number: 20110247387
    Abstract: A flaring apparatus comprising a pipe holder for holding a pipe such as to prevent axial movement of the pipe and a hand-powered actuator including a pivotably mounted lever operable to drive a tool carrier towards the pipe holder.
    Type: Application
    Filed: November 3, 2009
    Publication date: October 13, 2011
    Inventor: Nigel A. Buchanan
  • Patent number: 7578161
    Abstract: Tools for expanding (i.e., flaring and swedging) the ends of metal tubes are configured for attachment to a powered impact hammer, such as an air hammer. A swedging tool for swedging an end of a metal tube has a swedging body with a die section for expanding the tube when driven thereinto and a flanged shank attached to the swedging body and configured for engagement by a powered impact hammer. A flaring tool for flaring an end of a metal tube includes a flaring body having a die section for flaring the tube when driven thereinto. A flanged shank is attached to the flaring body and configured for engagement by a powered impact hammer. A method for expanding an end of a metal tube entails attaching a die body for expanding the end of the metal tube to a powered impact hammer, aligning the die body with the inner diameter of the metal tube, activating the powered impact hammer, and urging the die body a determined distance into the metal tube.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: August 25, 2009
    Inventor: Marion M. Sizemore
  • Patent number: 7353682
    Abstract: A pipe flaring apparatus for use in flaring the end of a pipe preferably comprises a housing, a three jaw clamping chuck (3) in the housing which clamps the pipe (11) as the chuck (3) is propelled along an inclined surface (10a) of a chuck clamp (10) also in the housing by the operation of an outer piston (4) slidable in the housing by mechanical or hydraulic means. An inner piston (5) also mounted in the housing and preferably within the outer piston propels the required flaring tool (6) inwardly compressing pipe end (11a) between the clamping chuck die (3a) and a pipe flaring tool forming face (6b) to form an appropriate flare (11b) on the pipe end (11a). When the inner and outer pistons (4, 5) are deactivated resilient members preferably in the form of helical compression springs (8a, 8b) disengage the flaring head tool (6) and the clamping chuck (3) from the flared pipe (11a). The pipe (11) can easily be withdrawn through the chuck (3) and chuck clamp (10).
    Type: Grant
    Filed: September 16, 2003
    Date of Patent: April 8, 2008
    Assignee: American Grease Stick Company
    Inventor: Nigel Alexander Buchanan
  • Patent number: 7318334
    Abstract: The powered pipe cutter and the pipe flaring tool both have a piston slidably mounted in a cylinder. The cylinder has a top end closed by a top end plug. A crimped cartridge bore in the top end plug communicates with a gas expansion chamber. A bolt and firing pin assembly are attached to the cylinder top end. The pipe cutter includes a shear housing with a pipe passage connected to the rod end of the cylinder. A shear plate is connected to the piston and moves with the piston to shear pipes. The pipe flaring tool includes a pipe clamp assembly with a pipe passage and a female flaring surface connected to the cylinder rod end. A male flaring surface on the piston cooperates with the female flaring surface to flare pipe ends.
    Type: Grant
    Filed: June 3, 2005
    Date of Patent: January 15, 2008
    Inventor: Sam W. Carter
  • Patent number: 7069765
    Abstract: A shuttle assembly for use with an end forming machine includes a shuttle and a release mechanism coupled to the shuttle. The shuttle includes a main body, a tool-receiving bore formed in the main body, and a lock mechanism associated with the tool-receiving bore. The lock mechanism is movable between a locked position where a ball detent of the lock mechanism is biased to extend into the tool-receiving bore and an unlocked position where the ball detent is removed from within the tool-receiving bore. The shuttle assembly further includes a release mechanism coupled to the shuttle for moving the locking mechanism from the locked position to the unlocked position. The release mechanism includes a release lever coupled to the shuttle for pivotable movement relative to the shuttle to engage the ball detent and move the ball detent out of the tool-receiving bore.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: July 4, 2006
    Assignee: Manchester Tool & Die, Inc.
    Inventors: John Charles Grove, Joseph George Deal, Bradley Alan Vigar
  • Patent number: 6862766
    Abstract: A hand tool for expanding an end of a pipe to insert a fitting therein and for pressing a retaining sleeve over the pipe and fitting. The tool includes: (a) a replaceable, expandable head for insertion within an end of the pipe; and (b) a gripping and pressing member to grip the fitting and the retaining sleeve and to press the retaining sleeve over the pipe and fitting.
    Type: Grant
    Filed: April 16, 2002
    Date of Patent: March 8, 2005
    Assignee: Malco Products, Inc.
    Inventor: Dennis G. Geurts
  • Patent number: 6199421
    Abstract: A tool kit for forming a double flare on the end of deformable tubing includes a jig or bar assembly for holding the tubing, a combination gauge and tube forming anvil or adapter and a cone and yoke assembly. The gauge and tube forming anvil includes a lateral flange which is used to set the amount of extension of tubing from the bar assembly prior to deformation of the tubing by the adapter or anvil.
    Type: Grant
    Filed: October 15, 1999
    Date of Patent: March 13, 2001
    Assignee: Lisle Corporation
    Inventor: Randall J. Ploeger
  • Patent number: 6062060
    Abstract: A tool kit including a pilotless punch for swaging tube ends with beads, flares and portions of reduced diameter. The kit is particularly useful to automechanics for reconditioning sending units on fuel tanks using common workbench tools and equipment. The tool kit includes a pair of clamping blocks cooperatively forming a chuck for enclosing a tube. Each clamping block has a flat portion along a segment thereof such that both blocks are forcibly retainable against one-another in a common shop vise for firmly clamping a tube. There is also provided a centering bushing and an annular collar for simultaneously enclosing portions of the clamping blocks and a portion of the centering bushing when the centering bushing is positioned adjacent the clamping blocks, for centering the centering bushing with the chuck. The round punch bar is mountable inside a central opening in the centering bushing. The punch bar has a first pilotless swaging die for swaging a tube end.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: May 16, 2000
    Inventor: Tien Nguyen
  • Patent number: 5529349
    Abstract: A reduced resistance bead seal is integrally formed on a mounting surface of one of two matingly engageable members to form a leak-free seal between the two members despite any eccentricity or angular variances between the two members. In one embodiment, the reduced resistance bead is formed on an inner conical flange of an inverted flared end of a hollow fluid conduit. The bead may also be formed on the outer end flange of an ISO end flare. The bead presents a deformable surface as a fitting urges the flared end of the conduit into engagement with a conical seat in a receiver where eccentricity or angular variances exist between the flared end of the conduit and the conical seat. A unique method and a unique forming tool are used to form the reduced resistance bead in the flared end of the conduit simultaneously with the flaring of the end of the conduit.
    Type: Grant
    Filed: April 29, 1994
    Date of Patent: June 25, 1996
    Assignee: ITT Corporation
    Inventors: Glen Gibbs, Paul E. Anglin
  • Patent number: 5228323
    Abstract: An improved flaring tool includes the usual plurality of expandable die blocks retained by a U-shaped frame. A clamping screw is treaded through a clamp block which is rotatably mounted between the legs of the frame at its open end. The screw is movable toward and away from the die blocks to clamp or unclamp tubing between adjacent die blocks. A conical flaring tip is movable against the end of a clamped tubing for flaring same. The clamp block's axis of rotation is perpendicular to the direction of movement of the die blocks and the screw. The improvement comprises a facility which locks the clamp block against rotation when the screw is aligned with the die block and their direction of movement. The locking facility prevents unintentional rotation of the clamp block as the screw is rotated to clamp or unclamp the tubing, but may be manually overcome to intentionally rotate the clamp block.
    Type: Grant
    Filed: October 8, 1991
    Date of Patent: July 20, 1993
    Assignee: The Pullman Company
    Inventors: Miles Dubinsky, Rinart Joseph
  • Patent number: 5189900
    Abstract: An apparatus for connecting a coolant tube (20) and header (22, 24) of a heat exchanger (10) comprises manifolds (12, 14) forming fluid reservoirs (16, 18) and a plurality of coolant tubes (20) in fluid communication with the manifolds (12, 14) . The manifolds (12, 14) comprise a header wall (22, 24) having a plurality of collars (26) forming collar openings (28). The tubes (20) include an axially extending mechanical seam (50) and deformable hollow end portions (52) extending through the collar openings (28). A flaring tool (70) having tapered side surfaces (74) is inserted in the end portion (52) of the tube (20) to expand the tube (20) outwardly against the collar opening (28). The flaring tool (70) includes a groove extending axially along the side surface (74) aligning with and straddling the seam (50) during expansion of the tube (20) and further forces the portions (62, 64) of the tube (20) adjacent the seam (50) outwardly into sealing engagement with the collar opening (28).
    Type: Grant
    Filed: November 1, 1991
    Date of Patent: March 2, 1993
    Assignee: McCord Heat Transfer Corporation
    Inventors: James L. Colvin, Shawn T. Jennings, Gary L. Tarzwell
  • Patent number: 4910991
    Abstract: A continuous supply of tubing is fed intermittently into a work station. Partial cuts are made at periodic intervals by a cutoff head that operates in timed relation with tube clamping device. Tube gripping device then pulls on the end portion or segment to position it precisely downstream of and in alignment with the freshly cut tubing end. A double tube end forming device moves in between the downstream end of the tubing and the upstream end of the tube segment. This device has tube end forming heads that include tooling for suitably shaping both these ends simultaneously.
    Type: Grant
    Filed: July 19, 1988
    Date of Patent: March 27, 1990
    Assignee: T-Drill * BMI, Inc.
    Inventors: Reed Bertolette, Nicholas J. Marracino
  • Patent number: 4825682
    Abstract: An adjustable crimping tool (10) is provided having a pair of indexable discs (18, 32) each of which carry a plurality of concave die cavities (18A-18F, 32A-32F) spaced about and opening to outer periphery thereof which can be moved into registry (FIG. 1) to define a selected size/shape of crimping cavity (C).
    Type: Grant
    Filed: May 23, 1988
    Date of Patent: May 2, 1989
    Inventors: Mihkel Orav, Eugene D. Bonnes
  • Patent number: 4779441
    Abstract: An apparatus (10) for flaring an end portion (14) of a deformable tube (16), the end portion (14) having an annular burr (18) extending into the tube (16), the apparatus including a conical projection (20) for flaring the end portion (14) of the tube (16) when the tube (16) is forced thereon and characterized by the conical projection being of a predetermined radius and having a predetermined slope for engaging the burr (18) as the end portion (14) of the tube (16) is forced onto the conical projection (20) to force the burr (18) into the inner surface of the flared end portion (14). A method of flaring the end portion (14) is provided and includes the steps of flaring the end portion (14) and forcing the burr (18) into the inner surface of the flared end portion (14) to form a flared end portion (14) having a rounded edge and a substantially uniform wall thickness.
    Type: Grant
    Filed: April 15, 1983
    Date of Patent: October 25, 1988
    Inventor: William L. Pringle
  • Patent number: 4757703
    Abstract: A die apparatus operable to form or to clamp a tube with an upset annular flange includes a pair of opposed die members mounted for horizontal movement toward and away from each other at opposite sides of a fixed path along which the tube is axially fed when the die is opened. The die members are spring biassed to their open position and driven to their closed position by a vertically reciprocable die actuator having inclined surfaces slidably engaged with the outer surfaces of the die members to wedge the die members to their closed position.
    Type: Grant
    Filed: January 27, 1987
    Date of Patent: July 19, 1988
    Assignee: Tube Fab of Afton Corporation
    Inventor: Robert J. Redman
  • Patent number: 4754634
    Abstract: The device is composed of an inverted-U-shaped frame, a jig and a pipe fixture, and the inverted-U-frame is formed in such a way that the inverted-U-frame is formed in an inverted-U-shape and being formed with two pieces of leg portions for liftably guiding the jig, and a clamping screw shaft is provided for applying pressure to the jig disposed between the leg portions and a clasp is provided for holding the jig disposed between the leg portions on the clamping screw shaft and mount base portions are provided for mounting the pipe fixture at the lower portions of the leg portions, and the jig is formed as a pressure element formed with an annular groove for engaging the pawls of the clasp on an upper portion of its outer periphery, and for example, the pipe fixture that holds the end portion of an aluminum pipe in condition where the end portion of the pipe projects upward in a desired length is mounted at the mount base portions of the inverted-U-frame, and when the clamping screw shaft is screwed in, the p
    Type: Grant
    Filed: April 21, 1987
    Date of Patent: July 5, 1988
    Inventor: Sakae Murata
  • Patent number: 4535616
    Abstract: A flaring tool for conduit utilizing a yoke adapted to support a holder capable of selectively accommodating various sizes of tubes and employing a threaded actuator having a torque producing handle at one end, and a flaring head at the other. The flaring head comprises an adapter removably mounted upon the actuator inner end wherein various sizes of flaring tool heads may be selectively used with the actuator permitting the tool to accommodate a plurality of flaring heads.
    Type: Grant
    Filed: April 8, 1983
    Date of Patent: August 20, 1985
    Assignee: Dowley Manufacturing, Inc.
    Inventor: Lloyd R. Eason
  • Patent number: 4526023
    Abstract: A tube flaring tool flare bar assembly is disclosed comprising a pair of elongate parallel flare bars having opposite ends and laterally opposed inner sides provided with cooperable tube supporting recesses. The flare bars are laterally pivotal relative to one another about an axis at a common one of the opposite ends, and resilient retaining spring arrangements interengage the flare bars at the one end for pivotal movement of the flare bars about the axis. The flare bar assembly is adapted to be clampingly supported in a yoke component provided with a displaceable flaring cone by which the end of a tube engaged between the flare bars is flared.
    Type: Grant
    Filed: November 23, 1983
    Date of Patent: July 2, 1985
    Assignee: Emerson Electric Company
    Inventor: Larry F. Babb
  • Patent number: 4412462
    Abstract: The disclosure describes a core drill adjusting tool formed of a base plate of a predetermined size and thickness with a plurality of recesses of different diameters for testing a core drill and a frustum affixed thereto over which the cutting surfaces can be spread, an amount indicated by the testing recesses, by applying the cutting surfaces forcefully over the frustum.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: November 1, 1983
    Assignee: The Singer Company
    Inventor: Hubert P. McGavin
  • Patent number: 4352282
    Abstract: A panel brake has an intermediate jaw disposed between one fixed jaw having a straight edge and another fixed jaw having a curved edge. The intermediate jaw is movable so as to grip a panel against either the straight edge fixed jaw or the curved edge fixed jaw.
    Type: Grant
    Filed: January 21, 1981
    Date of Patent: October 5, 1982
    Assignee: Buske Industries, Inc.
    Inventors: Ervin Buske, Gerd Buske
  • Patent number: 4327570
    Abstract: For bending strip material into toothed shape, the strip is introduced once into a pair of toothed jaws and a bending member is moved from one end position to another to bend the strip about one end tooth, one end flank of which is exposed. The strip is removed and then similarly bent about another end tooth, in a preferably mirror-image arranged part of the apparatus, in an opposite bending direction, thereby to form a tooth in the strip. The bending steps are repeated as often as necessary.The invention is particularly applicable to the forming of a toothed band from a plane sheet metal strip.
    Type: Grant
    Filed: April 25, 1980
    Date of Patent: May 4, 1982
    Assignee: P.A. Rentrop Hubbert & Wagner
    Inventor: Willi Schottker
  • Patent number: 4318291
    Abstract: A tube or rod end forming apparatus comprises a rotary head (12) provided with a series of angularly spaced dies (30) for cooperation with a tube or rod held by a clamping device (10) which locates the tube or rod in alignment with the lowermost die (30). The head (12) is angularly indexable by means of an arm (50) which is pivotal about the rotary axis of the head (12) and is provided with a piston and cylinder operated plunger (52) for cooperation with sockets (56) in the head (12). The arm (50) is pivoted by a piston and cylinder (58) to effect indexing of the head (12). This arrangement allows accurate indexing of the head while positively holding it captive against rotation while the head executes a forming operation. The clamping device is so constructed that its jaws (70, 72) can be readily replaced or re-orientated for use with different tube diameters without the need for any bolting or like fastening devices.
    Type: Grant
    Filed: June 2, 1980
    Date of Patent: March 9, 1982
    Assignee: Stevens & Bullivant Limited
    Inventor: Alfred J. Thompson
  • Patent number: 4257135
    Abstract: An assembly tool for tube fittings, including a pair of pivotal manually operated channel-shapped unique leg lever handles which nest one in the other and are provided with a pair of jaws which are connected to the lever handles by a set of low friction rotatable journal shafts, the extremities of the journal shafts being journalled in the lower handles; the journal shafts being positions to maintaine the jaws in parallel relation, while under load, and are provided with coaxial channels to receive the ends of a tube fitting and press the ends of the tube fitting toward each other thereby to cause interengagement of the fitting components; the jaws being readily interchangeable to assemble fittings of a different size or construction. A further embodiment includes a clamp means incorporated in one of the channels to grip a portion of the tube element, the other jaw receiving a flaring (swaging) tool for the clamped tube element.
    Type: Grant
    Filed: July 23, 1979
    Date of Patent: March 24, 1981
    Assignee: Hackforth GmbH & Co. KG
    Inventor: Kurt O. Moebius
  • Patent number: 4223545
    Abstract: A swaging tool assembly for also bending, cutting and flaring tubing which includes a tubing holding block connected to a tool support by a sliding stabilizer bar and a main bar rotated by a speed bar handle. The block has a cutter wheel cooperating with tube guides on the tool support. On the upper part of the support is rotatably mounted a head from which project a plurality of conically configurated flaring ends for flaring by swaging a tube held at one end in a seat on the block. A bending lever with telescopic handle is pivoted eccentrically to the lower end of the support which has tube bending means.
    Type: Grant
    Filed: May 19, 1978
    Date of Patent: September 23, 1980
    Inventor: George T. Tucholski
  • Patent number: 4127021
    Abstract: The two bars that form the tubing gripper have tapered sides which mate with corresponding tapered faces on the two legs of the yoke. The direction of the tapering is such that as the flaring cone is forced against the end of a tube in the gripper, the tapered sides of the yoke legs cam the two bars of the gripper together to securely hold the tube in the gripper. A threaded bolt having a wing nut thereon is employed to initially press the bars of the gripper together with a sufficient force to hold the tube in the gripper while the yoke is put in place and the flaring cone initially pressed against the end of the tube.
    Type: Grant
    Filed: December 1, 1976
    Date of Patent: November 28, 1978
    Inventor: Andrew L. Johnson
  • Patent number: 4108589
    Abstract: A tool for flaring and doubling over the end of thermoplastic pipe and tubes wherein the tool includes a pair of superposed clamping bars, one being mounted to a stationary fixture and the other bar being hingedly connected at one end thereto. The hinged bar clamp is held in a clamped fixed position by a releasable toggle clamp device which is secured to the fixed bar clamp. Each bar is provided with a plurality of corresponding arcuate non-semicircular notches of various sizes to accommodate each particular sized pipe. A mandrel and flaring head which can be power driven, is also provided for flaring and doubling over the free end of the plastic tube or pipe when positioned within the clamping tool.
    Type: Grant
    Filed: January 21, 1977
    Date of Patent: August 22, 1978
    Inventor: Robert E. Bunch
  • Patent number: 4087225
    Abstract: An apparatus for flaring plastic tubing comprising a motor and speed reducing unit mounted on a slide member for relative movement towards and away from a set of stationary die members in which various diameters of plastic tubing may be inserted. A flaring head is mounted on the output shaft of the speed reducing unit in alignment with the central axis of a tubing positioned in the dies. The maximum forward and rearward movement of the slide member is adjustable so that the necessary movement for producing the desired flare on various diameters of tubing can be produced.
    Type: Grant
    Filed: November 22, 1976
    Date of Patent: May 2, 1978
    Assignee: Papco Tool Corporation
    Inventor: Glenn R. Wolcott
  • Patent number: 4047415
    Abstract: A forming tool comprising a rigid frame, clamping jaws on the frame for clamping a hollow tube with the end to be formed in a position of alignment with a forming head mounted on the frame for linear movement toward the end of the clamped tube and for rotation about the axis of the tube, said clamping jaws containing an opening for receiving the forming head as it is advanced into engagement with the tube, and said forming head containing a fustrum conical forming cavity for engagement with the end of the tube within which the end of the tube is wholly formed. A pilot is provided within the forming cavity for maintaining the concentricity of the tube and forming cavity during the forming operation. The entire surface of the forming head is coated with a non-electrolytically applied surface coating of nickel.
    Type: Grant
    Filed: November 6, 1975
    Date of Patent: September 13, 1977
    Inventors: Warren Joseph Crane, Russell Bancroft Collins, Charles Warren Crane
  • Patent number: 3959998
    Abstract: Pipe swaging apparatus includes a swaging fluid motor for moving a swage die toward a pipe clamping assembly including a stationary bottom clamping plate and a movable top clamping plate and a clamp operating fluid motor mounted beneath the bottom clamping plate and having a piston rod coupled with the top clamping plate to permit automatic operation of the pipe clamping assembly preferably simultaneously with operation of the swaging fluid motor.
    Type: Grant
    Filed: August 16, 1974
    Date of Patent: June 1, 1976
    Inventor: Bernard D. Ross