By Deforming Resilient Tool Or Tool Support Patents (Class 83/542)
  • Patent number: 9925952
    Abstract: A cutting mechanism (30) for a safety belt (10), the cutting mechanism (30) including a case (32), a passage (34) running through the case and making it possible to mount the cutting mechanism (30) on the belt (10) to be cut, and cutting elements (42) for the seatbelt (10), situated inside the case, the cutting elements (42) include a wire (44) and elements for heating (46) the wire. A process for cutting a safety belt (10), includes using a wire (44) and elements for heating (46) the wire in order to cut the belt with the heated wire.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: March 27, 2018
    Assignee: AGUILA TECHNOLOGIE
    Inventors: Matthias Flegar, Laurent Dardinier
  • Publication number: 20140109471
    Abstract: A plant graft production line for automatically grafting a rootstock and a scion si disclosed. The aforesaid plant graft production line comprises (a) a closed-loop conveyor; (b) at least one grafting assembly arranged for transporting along said conveyor; the assembly further comprises a rootstock holder for holding the rootstock and a scion holder for holding the scion; the holders arranged for at least partially superimposing said rootstock and scion; (c) stationary cutting mechanism for cutting exposed rootstock surface; (d) a stationary cutting mechanism for cutting a exposed scion surface to be; (e) stationary clipping mechanism for clipping the superimposed rootstock and scion together. It is a core feature of the invention to provide the rootstock holder arranged so as to provide a curvilinear plane along which said rootstock is conformed thereby presenting a curved cutting target for the cutting mechanism.
    Type: Application
    Filed: May 3, 2012
    Publication date: April 24, 2014
    Applicant: HISHTIL LTD
    Inventor: Ofir Luk
  • Patent number: 8499674
    Abstract: An accessory tool is configured to be coupled to a power tool having a tool drive structure. The accessory tool includes a spring component and has a first arm and a second arm attached to the spring component. The first arm includes (i) a first proximal end portion defining a first accessory drive structure that is configured to mate with a first portion of the tool drive structure, and (ii) a first distal end portion having a first holding structure. The second arm is spaced apart from the first arm and includes (i) a second proximal end portion defining a second accessory drive structure that is configured to mate with a second portion of the tool drive structure, and (ii) a second distal end portion having a second holding structure.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: August 6, 2013
    Assignee: Robert Bosch GmbH
    Inventors: John Holba, Edward Abante, Jeremy Rubens, Carl Christian Carlson, Jaime Moreno
  • Publication number: 20130125718
    Abstract: A cutting device for cutting an optical fiber running in a first direction is comprised of a supporting piece having a free end and a fixed end and having resilience; a cutting blade supported by the supporting piece and so disposed as to come in contact with the optical fiber to make a right angle with the optical fiber at a point of the contact; and a driving device configured to press the supporting piece in a second direction in a plane perpendicular to the first direction, the second direction being not intersecting with the first direction.
    Type: Application
    Filed: January 15, 2013
    Publication date: May 23, 2013
    Applicant: FUJIKURA LTD.
    Inventor: FUJIKURA LTD.
  • Publication number: 20110283848
    Abstract: A device for trimming the thickness of a mechanical body is disclosed. The trimming is performed by screwing a screw through a threaded hole and having the end of the screw pressing against the center of a disk element, which, by deformation, acts as a lever against an adjacent body.
    Type: Application
    Filed: May 12, 2011
    Publication date: November 24, 2011
    Applicant: MINDRAY MEDICAL SWEDEN AB
    Inventor: Göran Cewers
  • Patent number: 7918630
    Abstract: A material cutting machine has a tool mount support mounted for reciprocal movement and a tool mount supported by the tool mount support. A driver, such as a pneumatic cylinder, selectively advances and retracts the tool mount support. A control system is operatively coupled to the driver for setting the advancement force of the tool mount support when a tool supported by said tool mount contacts a workpiece, such as the edge or surface of a moving strip. In this way, the depth of cut of the tool is controlled by tool advancement force rather than by accurate positioning of the tool. In one embodiment, the tool mount support may have a head and a base and a resilient member resiliently coupling the head to the base to provide a damped resilience. With this embodiment, a transient spike in the reaction force which may result, for example, from a hard spot in the material, causes the tool to momentarily deflect.
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: April 5, 2011
    Inventor: Austen B. Barnes
  • Publication number: 20090308217
    Abstract: A cutting apparatus includes a base frame, a pair of holder assemblies, an overhead frame, a cutter assembly and a controller. The pair of holder assemblies are operably connected to the base frame with one holder assembly holding the first workpiece and the other holding the second workpiece. The pair of holder assemblies independently move relative to one another along a transverse axis. The overhead frame is connected to the base frame. The cutter assembly is connected to the overhead frame and moves along a vertical axis and a horizontal axis. The cutter assembly includes a rotary cutter mechanism with a rotating cutting tool. The controller controls and moves of the pair of holders and the cutter assembly so that the rotating cutting tool cuts the first workpiece in a first desired configuration then moves to the second workpiece to cut the second workpiece in a second desired configuration.
    Type: Application
    Filed: June 17, 2008
    Publication date: December 17, 2009
    Applicants: Sony Corporation, Sony Electronics, Inc.
    Inventor: Esteban A. Alvarez Serrano
  • Publication number: 20080236356
    Abstract: A punching device comprises a pushing pole, an adjusting portion, a supporting portion, and a spring. The pushing pole comprises a first threaded end and a second threaded end. The adjusting portion defines a screw hole therein, through which the adjusting portion is fixed to the first end of the pushing pole. The supporting portion is located on the pushing pole, with the pushing pole passing through a through hole in the supporting portion. The spring is disposed around the pushing pole, with two ends respectively abutting against the adjusting portion and the supporting portion.
    Type: Application
    Filed: April 2, 2008
    Publication date: October 2, 2008
    Applicants: HONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: KUO-JUNG HUANG, SHU-WEI ZHOU, FU-SHUN HUANG, CHUN-NAN OU, CHIA-HSIANG OU, YUN-FENG ZHANG
  • Patent number: 6871572
    Abstract: A drive device for generating oscillations, especially for the blade of a microtome, with a power generator and a power transmission element, which with the power generator is movable in a predetermined oscillation direction (S), whereby the power generator includes a combination of a permanent magnet part and a coil part, whereof one part is fixed stationary on a holder and the other part on the power transmission element, respectively, and the power transmission element is formed by a vibrational arm, which is fixed at one end to the holder and which is elastically bendable in the oscillation direction and still in all other directions.
    Type: Grant
    Filed: October 23, 2000
    Date of Patent: March 29, 2005
    Assignee: Max-Planck-Geselleschaft zur Forderung der Wissenschaften
    Inventors: Bernhard Häussler, Rolf Rödel, Josef Pauli
  • Patent number: 6722247
    Abstract: A device for suspending one end of a saw blade (28) in a first arm (14) of a parallelogram-jigsaw, having a second arm (18) parallel to the first arm and having a a saw blade clamp (38) mounted pivotably with respect to the first arm (14). A third arm (36) is provided parallel to the first arm (14) as positive guide and pivotably mounted, of which the length can be slightly extended or reduced in the longitudinal direction under load. The saw blade clamp (38) is mounted pivotably on the ends of the respective first arm (14) and third arm (36) which ends are opposite the rotation axis (12, 43).
    Type: Grant
    Filed: November 7, 2001
    Date of Patent: April 20, 2004
    Inventor: Helmut Abel
  • Publication number: 20020073822
    Abstract: A device for suspending one end of a saw blade (28) in a first arm (14) of a parallelogram-jigsaw, having a second arm (18) parallel to the first arm and having a a saw blade clamp (38) mounted pivotably with respect to the first arm (14). A third arm (36) is provided parallel to the first arm (14) as positive guide and pivotably mounted, of which the length can be slightly extended or reduced in the longitudinal direction under load. The saw blade clamp (38) is mounted pivotably on the ends of the respective first arm (14) and third arm (36) which ends are opposite the rotation axis (12, 43).
    Type: Application
    Filed: November 7, 2001
    Publication date: June 20, 2002
    Inventor: Helmut Abel
  • Patent number: 6305634
    Abstract: A track and flap assembly employs an elongate compressible foam member completely covering an elongate channel that carries a paper cutting tape. Between the bottom of the foam member and the top of the channel are one or two pivotally mounted resilient flap members that cooperate with the foam member to provide a desired frictional drag and exiting resistance to control the cutting tape movement during turn up. A compressed air passage is provided to allow for forced air removal of debris and other contaminants from the tape channel. The assembly is constructed in two configurations to accommodate different papermaking apparatus.
    Type: Grant
    Filed: October 20, 1999
    Date of Patent: October 23, 2001
    Assignee: Sandar Industries, Inc.
    Inventor: Peter A. Rodriguez
  • Patent number: 5918516
    Abstract: A method of cutting input/output columns on an electronic component includes the steps of: providing a shear plate which has a thickness that is less than the length of the columns and which has respective holes for receiving all of the columns; inserting the columns into the holes until a portion of the columns extend past the shear plate; placing a blade, with a cutting edge, at an acute angle against the shear plate such that only the cutting edge of the blade touches the shear plate; and, sliding the cutting edge of the blade against shear plate and through the portion of the columns which extend past the shear plate, while keeping the blade at the acute angle. With this method, crater-like voids and burrs on the cut ends of the columns are eliminated.
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: July 6, 1999
    Assignee: Unisys Corporation
    Inventors: Ronald Allen Norell, Kenneth Walter Economy
  • Patent number: 5809858
    Abstract: There is disclosed herein a device for achieving and maintaining the optimum positioning of the cutting die and platen components on a die cutting machine used for cutting and scoring paper, plastic, leather, cloth, metal, and other like materials. The device compensates for inherent deviations present in each individual die cutting machine. The invention is comprised of a rigid lightweight metal substructure bonded to an overlayment of a semi-rigid material possessing a unique combination of elastic and compressible properties which allow the cutting knives in a steel rule die to lie in the same horizontal plane as the movable platen.
    Type: Grant
    Filed: December 4, 1996
    Date of Patent: September 22, 1998
    Inventor: Paul Wesley DeRoo, Sr.
  • Patent number: 5456587
    Abstract: A plastic pellet delivery system including an extruder nozzle having an orifice and an arcuate surface adjacent the orifice and rigid cutting knife which is eccentrically mounted on a shaft that is positioned and is rotated adjacent the orifice to move the rigid knife eccentrically into and out of engagement with the nozzle surface. The cutting knife is mounted for limited yielding pivotal movement relative to the eccentric mount such that it will deflect angularly with respect to the eccentric mount as it is engaging the nozzle surface such that the free edge of the knife blade tip is moved radially inwardly as the eccentric mount is rotated providing a substantially constant force of the blade against the nozzle surface.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: October 10, 1995
    Assignee: Owens-Illinois Closure Inc.
    Inventor: Keith W. Ingram
  • Patent number: 5386971
    Abstract: A plastic pellet delivery system including an extruder nozzle having an orifice and an arcuate surface adjacent the orifice and rigid cutting knife which is eccentrically mounted on a shaft that is positioned and is rotated adjacent the orifice to move the rigid knife eccentrically into and out of engagement with the nozzle surface. The cutting knife is mounted for limited yielding pivotal movement relative to the eccentric mount such that it will deflect angularly with respect to the eccentric mount as it is engaging the nozzle surface such that the free edge of the knife blade tip is moved radially inwardly as the eccentric mount is rotated providing a substantially constant force of the blade against the nozzle surface.
    Type: Grant
    Filed: July 22, 1993
    Date of Patent: February 7, 1995
    Assignee: Owens-Illinois Closure Inc.
    Inventor: Keith W. Ingram
  • Patent number: 5010795
    Abstract: A sheet material cutter for shearing various widths of sheet material such as aluminum or plastic siding, soffit, facia board and flashing is provided which is readily transportable and useful in cutting a variety of widths of such sheeting. The cutter has a base, a shearing blade of a length greater than the maximum width of sheet to be cut, spaced apart shearing dies mounted on the base and defining a shearing slot through which the blade travels when shearing a width of material, and a post on the base to which the shearing blade is pivotally mounted. The shearing blade includes a pointed section which pierces the sheet material, first the remaining shearing edges of the blade shearing the material to each side of the pierced area to complete cutting of the sheet material.
    Type: Grant
    Filed: December 1, 1986
    Date of Patent: April 30, 1991
    Inventor: Jozef Kania
  • Patent number: 4862779
    Abstract: A cutter of the present invention comprises a punching member having a punching edge and a receiving member for receiving the punching force of the punching member, the receiving member having a sandwich structure comprising two plate materials and an elastic body held therebetween. Therefore, the receiving member is capable of elastically holding the punching edge during punching.
    Type: Grant
    Filed: May 18, 1988
    Date of Patent: September 5, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Mizuho Nishimura, Nobuo Watase, Yasunobu Sakaguchi, Mikio Kogane
  • Patent number: 4856399
    Abstract: In an apparatus for blanking out a sheet material (1) between a punch (4) and a die (6) having a sharp edge (7), the punch (4) is formed by a heterogeneous composite elastic material having localized regions (4a) having a relatively higher hardness, and complementary regions (4b) having a relatively lower hardness.
    Type: Grant
    Filed: May 17, 1988
    Date of Patent: August 15, 1989
    Assignee: Isoform
    Inventor: Gabriel Deshet
  • Patent number: 4827820
    Abstract: A paper web cut-off device, comprising a frame and a blade member mounted on the frame. The blade member is disposed to execute cutting of the paper web, with an actuator being provided for producing, on the blade member, the force required for cutting the paper web. The actuator for producing the required force for cutting of the paper web, is a spring member in which cutting energy is stored. At least one cocking or loading member is provided, which is disposed to cock or load the spring member.
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: May 9, 1989
    Assignee: Oy Wartsila AB
    Inventor: Jorma Kinnunen
  • Patent number: 4783982
    Abstract: A system for trimming a can body wherein a can body is positioned within a cutting member so that the cutting member is at the location where the can body is to be trimmed. A resilient, deformable object is inserted into the can body and positioned therein so that at least a portion thereof is located radially opposite portions of the can body on each side of the cutting member. The resilient, deformable object is deformed so as to move a first part thereof against a portion of the can body to prevent longitudinal movement of the can body and then to move a second part thereof against the portion of the can body located between the cutting member and the open end of the can body in a radially outward direction so as to sever that portion from the can body.
    Type: Grant
    Filed: September 29, 1987
    Date of Patent: November 15, 1988
    Assignee: Adolph Coors Company
    Inventors: Roger A. Hahn, Robert H. Schultz
  • Patent number: 4723466
    Abstract: A self-sharpening hole punch for plastic bags includes a pneumatically operated punching apparatus for punching wicket pin receiving holes in a flexible film or plastic bag. If desired, a tear slit may be simultaneously formed to enable the bag to be quickly and readily torn free from the wicket pin upon which the bag is retained. A pneumatic air cylinder has a cylinder rod with a fitting affixed thereto, the fitting having an internal tapered thread. Interchangeable plastic cutting tools, having a complementary tapered thread, may be interchangeably screwed into the fitting to facilitate replacement as necessary. A resiliently compressible cylinder of foam plastic material is disposed in a circular void at the cutting side of each of the plastic cutting tools to expel the waste film discs that are punched out of the film or plastic bag material.
    Type: Grant
    Filed: February 10, 1986
    Date of Patent: February 9, 1988
    Inventor: Earl T. Pottorff
  • Patent number: 4656904
    Abstract: A cutter apparatus is disclosed for cutting elongated food products such as french fry potato strips, to cut them in two or to remove defects. The cutter apparatus includes two independently operated knives which are actuated by pneumatic cylinders controlled by solenoid valves that apply air pulses to such cylinders for fast operation. The valves are operated in response to control signals produced by light sensor means which senses the defect and causes a central processing unit of a computer to produce the control signals. The knife blades are each connected to the piston rod of the cylinder by a flexible resilient connector for causing the blade to move in a non-linear manner downward in response to linear movement of the piston rod for cutting the defect from the food product while such product is moving along a conveyor belt beneath such cutter, without arresting movement of the food product.
    Type: Grant
    Filed: September 4, 1985
    Date of Patent: April 14, 1987
    Assignee: Lamb-Weston, Inc.
    Inventors: Arthur G. Rayment, Herbert W. Johanson, Jr.
  • Patent number: 4653372
    Abstract: A self-sharpening hole punch for plastic bags includes a pneumatically operated punching apparatus for punching wicket pin receiving holes in a flexible film or plastic bag. If desired, a tear slit may be simultaneously formed to enable the bag to be quickly and readily torn free from the wicket pin upon which the bag is retained. The disclosed embodiment utilizes a pneumatic air cylinder having a free end of the cylinder rod having a fitting secured thereto having an internal tapered bore. Interchangeable plastic cutting tools, having a complementary tapered thread, may be interchangeably threaded into the fitting to facilitate replacement as necessary.
    Type: Grant
    Filed: June 26, 1985
    Date of Patent: March 31, 1987
    Inventor: Earl T. Pottorff
  • Patent number: 4624164
    Abstract: A hydraulic shearing machine for cutting steel sheets and the like in which the lower blade is fixed between two vertical end-plates of the frame while the upper blade is carried by a movable apron. The support provided for the lower cutting blade consists of a hollow box which extends horizontally between the vertical end-plates of the shearing-machine frame and only the ends of which are attached to the frame. The lower blade is fixed against one of the side walls of the support box so as to be displaced with respect to the theoretical center of rotation of said support box about its own axis. In consequence, the vertical forces exerted on the lower blade at the time of utilization of the shearing machine tend to produce a twisting movement of the support box, thus providing compensation for the horizontal flexural displacement of the box under the action of the horizontal forces.
    Type: Grant
    Filed: April 26, 1985
    Date of Patent: November 25, 1986
    Assignee: Promecam Sisson-Lehmann
    Inventor: Rene Passa
  • Patent number: 4366737
    Abstract: A cutting head for a filter attachment machine comprises a carrier drum carrying at circumferentially spaced positions a number of knife bodies each of which is clamped onto the drum by retaining devices engaging the ends of the knife body, and including an interposed layer of rubber or other resilient material lying at least in the region below the middle of the knife body, each knife body, its retaining devices and its rubber layer being so arranged that when the knife body is secured in position by the retaining devices, it is flexed slightly so that its cutting edge is slightly convex.
    Type: Grant
    Filed: October 28, 1980
    Date of Patent: January 4, 1983
    Assignee: Molins Limited
    Inventor: Michael J. Bedford
  • Patent number: 4281571
    Abstract: A paper cutter assembly for use in combination with a supported roll of paper. The assembly, comprises a displaceable stationary single-strand cutter wire member that is positioned under and across the width of the paper roll, and a movable paper-cutting assisting subassembly that includes a pulley member disposed on the cutter wire member, and a handle member that is removably connected to the pulley member. When the pulley member is pulled by the operator toward himself and across the width of the unrolled paper with the use of the handle member, the cutter wire member is displaced toward the operator, the unrolled paper is cut in a straight and clean condition across its width, and is severed from the rest of the roll of paper in a quick and safe manner by the movement of the displaced wire member.
    Type: Grant
    Filed: August 22, 1979
    Date of Patent: August 4, 1981
    Inventor: Rowland K. Yates
  • Patent number: 4232576
    Abstract: A device for severing a continuous rod-like member into separate elements during axial movement along a predetermined path through a severance zone comprising a ledger for engaging and maintaining said member in said path during its passage though said zone, means for causing a cutting knife to move along an endless course substantially at right angles to said path, and said course intersecting transversely with said path to sever the member and means for causing the knife to move at a greater speed while it is travelling across said path than in other parts of its movement.
    Type: Grant
    Filed: December 26, 1978
    Date of Patent: November 11, 1980
    Assignee: The Wiggins Teape Group Limited
    Inventor: Roger A. Allen
  • Patent number: 4143568
    Abstract: Web cutting apparatus employs a rotary knife cylinder with elongated, radially outwardly projecting knife blade assemblies spaced around its periphery. A rotary anvil cylinder spaced parallel to the knife cylinder carries a corresponding peripheral array of elongated anvils. When the two cylinders rotate, the knife blades bear against the anvils at the nip between the two cylinders. The knife blade assemblies are flexible and resilient so that each blade edge is biased against its anvil at the instant of interference, with a local force sufficient to cut web. Further, the natural frequency of the knife assemblies is selected to be considerably higher than those of the other machine parts so that the spacing between the knife blades and the anvils at the nip is substantially unaffected by vibrations of those parts. Also the apparatus efficiently removes trim strips produced by the web cuts.
    Type: Grant
    Filed: June 30, 1977
    Date of Patent: March 13, 1979
    Assignee: Butler-Automatic, Inc.
    Inventor: John Cogswell
  • Patent number: 4119047
    Abstract: A cutter mechanism for use in a tufting machine or the like featuring a stationary blade having openings through which yarn strands project, the stationary blade being positioned in the path of travel of yarn strands from yarn creels to bit-applying elements with the cutter mechanism further featuring a series of reciprocable blades which are biased against the stationary blade whereupon reciprocation the reciprocable blades will pass over the openings and because of their biasing effect, penetrate the plane of the stationary blade passing into the openings thereby severing the yarn strands.
    Type: Grant
    Filed: June 30, 1977
    Date of Patent: October 10, 1978
    Assignee: Abram N. Spanl
    Inventors: Abram N. Spanel, P. Frank Eiland, David R. Jacobs, David N. Buell
  • Patent number: 4111089
    Abstract: The dispenser comprises a generally cylindrical or cup-like base member which removably receives a spool of a dispensable and cuttable plastic-coated ribbon or wire which is wound on the spool. The side wall of the base has an opening through which the wire or tape can be fed from the spool. Each spool can be replaced in the base member as it is used up, or a new spool can be inserted at any time, if desired. A disk-like cover member, carrying a central post, forms a tight mechanical fit with the base, with the post engaging the spool, whereby the spool is held in place and can rotate thereon. The base carries an extension plate which carries a cutting mechanism which is generally aligned with the opening in the side wall, the cutting mechanism being provided for cutting, to a desired length, the wire or tape dispensed from the spool.
    Type: Grant
    Filed: December 9, 1976
    Date of Patent: September 5, 1978
    Inventor: Elio Montaruli
  • Patent number: 4084469
    Abstract: A cutting apparatus, suitable for cutting or shearing a moving web, comprises first and second wire segments that contact each other at substantially a single point and includes means for causing the point of contact to travel along the length of the wire segments to accomplish the cutting of a web positioned between the wire segments.
    Type: Grant
    Filed: December 17, 1976
    Date of Patent: April 18, 1978
    Inventor: Herbert Ray Gray
  • Patent number: 4080136
    Abstract: An apparatus and method are disclosed for providing a measured quantity of extrudate material to a receiving means. The extrudate material exits through an outlet, and a cutting surface is positioned adjacent to the outlet. The extrudate material is severed by a cutting means having a flexible and resilient blade for severing the extrudate material into metered charges. The cutting blade contacts the cutting surface during each revolution and bends from a rest condition to a backwardly bent flexed condition. After severing a metered charge, the cutting blade is released from the cutting surface and snaps forwardly to the rest condition to propel the metered charge toward the receiving means at a velocity greater than the average tangential velocity per revolution of the cutting blade.
    Type: Grant
    Filed: September 2, 1976
    Date of Patent: March 21, 1978
    Assignee: H-C Industries, Inc.
    Inventor: William N. Peller
  • Patent number: 4060017
    Abstract: A method for cutting lithium metal into a plurality of pieces, and a device for accomplishing the method, are disclosed, comprising the steps of positioning a quantity of lithium metal at a predetermined position between an anvil means and a cutting means which are positioned in operating relationship with each other. A thin flexible film, preferably a plastic, is interposed between the blade and the lithium such that when the blade is forced against the anvil with sufficient force to cut the lithium, the film prevents contact of the blade with the lithium. Indexing of the lithium and the film after each cut permits repetitive cutting to provide a plurality of pieces from the lithium metal stock.
    Type: Grant
    Filed: February 18, 1977
    Date of Patent: November 29, 1977
    Assignee: Honeywell Inc.
    Inventor: John R. Backlund
  • Patent number: 3955453
    Abstract: In tube-shearing apparatus of the kind employing relatively transversely moving apertured dies and an internal supporting mandrel, the mandrel comprises an elastomeric body which is compressed axially with the high force to expand it radially against the tube wall such as to form not merely an internal support but effectively a supporting shear blade inside the tube. This allows clean shearing also of tubes having internal protuberances such as welding seams.
    Type: Grant
    Filed: June 13, 1974
    Date of Patent: May 11, 1976
    Assignee: T.I. (Group Services) Limited
    Inventors: Richard Quentin Carmichael, Roger George Bonelle