US2683930A - Cable vise and cutter for removing armor from cable - Google Patents

Cable vise and cutter for removing armor from cable Download PDF

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Publication number
US2683930A
US2683930A US275449A US27544952A US2683930A US 2683930 A US2683930 A US 2683930A US 275449 A US275449 A US 275449A US 27544952 A US27544952 A US 27544952A US 2683930 A US2683930 A US 2683930A
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Prior art keywords
cable
cutter
vise
armor
axle
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US275449A
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Nial F Walters
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US Air Force
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US Air Force
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/12—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof
    • H02G1/1202—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof by cutting and withdrawing insulation
    • H02G1/1204—Hand-held tools
    • H02G1/1221—Hand-held tools the cutting element rotating about the wire or cable
    • H02G1/1224—Hand-held tools the cutting element rotating about the wire or cable making a transverse cut

Definitions

  • This invention relates to a cable vise combined with a cutter for removing armor from cable.
  • the action which is intended is a severing action, not a slitting action.
  • the tool is especially adapted for use on the end of a bench and may be held down with one hand while being operated with the other.
  • the device consists of two portions, a Vise portion for holding and positioning the cable and a gauging and cutting portion for setting the depth of the cut and then for undergoing a manual rotation so as to traverse a cutting wheel completely around the cable under sufficient pressure to sever the unwanted portion of the armor from the rest of the stock.
  • One of the objects of the invention is to provide a device which will sever steel armor from cable without damaging the cable, notwithstanding the fact that the armor has been swaged into ridged contact with the cable.
  • the kind of cable that is spoken of is used for parachute cables and the like as actuating wire and is not intended for electrical use. It lies within the purview of the invention however, to use the tool to remove insulation or lead jacket from electrical cable.
  • Another object of the invention is to provide a device in which the cutter can be accurately set to depth in a minimum of time and will preserve the depth setting for the entry of the cutter wheel into the armor through numerous operations of the cutting wheel.
  • Another object is to provide a device which will track the cutter wheel accurately so that the armor is severed cleanly and without a burr.
  • Fig. 1 is a perspective oblique view from above, the vise portion being at the left and the cutter portion being at the right.
  • Fig. 2 is a longitudinal section taken along the line 2-2 of Fig. 1.
  • Fig. 3 is a front elevation of the device from the cutter end, the internal operating parts being shown in dashed lines.
  • Fig. 4 is a cross-section taken on the line 4-4 of Fig. 3.
  • Fig. 5 is a cross-section taken on the line 5-5 of Fig. 3.
  • Fig. 6 is a partial vertical section taken on the line 6-6 of Fig. 3.
  • ll indicates the vise portion and H the cutter portion of the device.
  • the vise portion I5 is intended to be held manufit) ally, or otherwise mounted upon a work bench, the crosswise edge of which coincides with the line I2 which indicates the boundary between the cutter portion ll and the vise portion It.
  • the cutter portion 1 I is rotatable about the cable is which is shown in Fig. 1 both as projecting forward from the cutter portion I i and rearward from the vise portion I is.
  • the vise portion l0 comprises a longitudinally grooved lower block Hi and an upper block I 5 through which a holding screw it, having a larg knurled head ll, projects. The two blocks are held together by screws as clearly indicated in Figure 1 of the drawings.
  • the cutter portion I I has more height and less length than the vise portion and is provided with four mutually attached side plates l3, 19, 18a and it'd, an axle 28 mounted in the plates I 9 and Ida which serves the purpose of retaining the cable longitudinally in an opening therethrough.
  • the axle 20 is keyed to the plate I9 by means of a pair of keying screws 2
  • the cutter portion is characterized by the presence of a locking screw 22 which also has a knurled head 23 and which is set into a boss 24 on a top closure and guide 25.
  • a semi-cylindrical shoe 26 which is vertically adjustable in a recess 2? by virtue of the fact that it is loosely retained upon the inner end holding screw It so that the recess 2! will hold it parallel with the cable 13 notwithstanding the rotation of the screw It.
  • the shoe 2? is adapted to cover about half of the cable circumference while acting as a vise jaw.
  • the axle 20 extends from the front face of the cutting portion II well into the vise portion It and is there retained between blocks I 4 and I5 by a flange 28.
  • the axle 20, which is of round cross-section in that portion of its length which is retained between the blocks I4 and I5 is provided near its forward end With flats 29, 3D and 3!.
  • enable the axle 20 to fit respectively the front plate I9 of the cutter portion II and a rear plate I9a thereof.
  • , is dimensioned by means of a pair of shoulders 32 to receive a vertically slidable block 33 into the top of which the upper set screw 22 is rotatably retained with a round key 34 which is shown in Fig. 3 behind plate I9.
  • the slidable block 33 at its lower end is bored transversely for the accommodation of an arbor 35 upon which is mounted a cutting wheel 36 which may rotate on the arbor or be tightly pressed thereon so that the arbor rotates.
  • a lower recess 37 in the axle 29 enables the cuttin wheel 36 to reach the cable I3 which lies in a cylindrical cavity 38 which can be seen in full line in Fig. 5 and in dashed line in Fig. 3.
  • a fiat 39 which has shoulders 40 for the reception of the various plates including a bottom plate 4
  • Pins 42 lock the plate 4
  • Pins 43 lock the closure 25 to the same plates at the top of the cutter portion I.
  • the efiect of this construction is to make the cutter portion body usable as a wrench to rotate the axle 20, which corresponds to a nut in that it has four flattened surfaces for the reception of a wrench, but differs from a nut in that it has considerable of a rotatable cylindrical bearing portion 20 enclosed within the blocks I4 and I5.
  • the portion II is kept in good horizontal alignment by the cylindrical portion20.
  • a threaded opening 44 for the reception of a set screw 45 is provided in the bottom plate 4
  • the set screw 45 makes contact with the lower end of the vertically slidable block 33 to furnish a stop to regulate the depth of out which the cutting wheel 36 can make in the armor of the cable I3.
  • the screws I6 and 22 are first manually loosened, then the cable I3 is inserted into the vise portion I0 from the rear and is pushed forward through the cutter portion II until as much of the armor protrudes beyond the plate I9 as is judged suitable to be severed, taking into consideration the distance of the cutting wheel 36 from the front of the plate I9. Both screws I6 and 22 are then tightened, the cutting Wheel 36 just resting on the top of the armor. The screw 22 is then advanced just enough to make the cutting wheel 36 cut through the armor, but not through the strands of the cable. The set screw 45 is then adjusted with a screw driver from below so as to make firm contact with the vertical slide contact 33. The left hand then retains the vise portion against rotation while the right hand rotates the cutter portion II.
  • the armor is now severed and the projecting piece is pulled forward with pliers to separate it from the cable strands.
  • the device is now set for an infinite number of cuts if the dimensions of the cable and its armor remain the same. It makes no difference whether the rotation of the cutter portion is clockwise or counterclockwise, although clockwise rotation is more convenient for right handed persons.
  • the cable is released from the device by loosening the screw I6. The foregoing operation may be accomplished more easily on the end of a bench so that the vise portion rests upon the bench and the cutter portion projects over the end, nevertheless the two can be used merely by holding it in the hands.
  • a device for severing armor and the like circumferentially from cable comprising a vise portion and a rotatable cutter portion, the vise portion comprising a lower grooved block, an upper grooved block and a screw-actuated holding device mounted in a recess above the groove of the lower block so as to be vertically adjustable therein, a flanged axle rotatably retained between said blocks, said axle forming a connection between the vise portion and the cutter portion, the latter comprising a vertically screw-adjustable block recessed at its lower end, an arbor mounted across the recess and a cutting wheel rotatable on said arbor, said cutting wheel projectin below the block into a recess in said axle so that said cutting wheel is able to contact cable laid longitudinally through said axle at the center of rotation thereof, a plurality of plates forming a case in which the block may be actuated, and through two of which said axle extends, a plurality of flats upon the axle in the cutter portion to give the axle
  • a device in addition a vertically adjustable set screw in the lower closure of the case, said screw being adapted to be set to limit the downward travel of said vertically adjustable block and its associated cutter whereby to limit the depth of penetration to which the cutter can enter the cable when the block is forced downward under the urging of the adjusting screw.

Landscapes

  • Scissors And Nippers (AREA)
  • Removal Of Insulation Or Armoring From Wires Or Cables (AREA)

Description

CABLE VISE AND CUTTER FOR REMOVING ARMOR FROM CABLE Filed March '7, 1952 99 /9 35 /9 JNVENTOR.
Patented July 20, 1954 CABLE VISE AND CUTTER FOR REMOVING ARMOR FROM CABLE Nial F. Walters, New Carlisle, Ohio, assignor to the United States of America as represented by the Secretary of the Air Force Application March 7, 1952, Serial No. 275,449
2 Claims. (CI. 30-91) (Granted under Title 35, U. S. Code (1952),
see. 266) The invention described herein may be manufactured and used by or for the government for governmental purposes without payment to me of any royalty thereon.
This invention relates to a cable vise combined with a cutter for removing armor from cable. The action which is intended is a severing action, not a slitting action. The tool is especially adapted for use on the end of a bench and may be held down with one hand while being operated with the other.
Briefly stated, the device consists of two portions, a Vise portion for holding and positioning the cable and a gauging and cutting portion for setting the depth of the cut and then for undergoing a manual rotation so as to traverse a cutting wheel completely around the cable under sufficient pressure to sever the unwanted portion of the armor from the rest of the stock. The
severed portion of the armor must then be pulled from the strands of the cable by means of pliers or other tools.
One of the objects of the invention is to provide a device which will sever steel armor from cable without damaging the cable, notwithstanding the fact that the armor has been swaged into ridged contact with the cable. The kind of cable that is spoken of is used for parachute cables and the like as actuating wire and is not intended for electrical use. It lies within the purview of the invention however, to use the tool to remove insulation or lead jacket from electrical cable.
Another object of the invention is to provide a device in which the cutter can be accurately set to depth in a minimum of time and will preserve the depth setting for the entry of the cutter wheel into the armor through numerous operations of the cutting wheel.
Another object is to provide a device which will track the cutter wheel accurately so that the armor is severed cleanly and without a burr.
Referring now to the accompanying drawings,
Fig. 1 is a perspective oblique view from above, the vise portion being at the left and the cutter portion being at the right.
Fig. 2 is a longitudinal section taken along the line 2-2 of Fig. 1.
Fig. 3 is a front elevation of the device from the cutter end, the internal operating parts being shown in dashed lines.
Fig. 4 is a cross-section taken on the line 4-4 of Fig. 3.
Fig. 5 is a cross-section taken on the line 5-5 of Fig. 3.
Fig. 6 is a partial vertical section taken on the line 6-6 of Fig. 3.
Referring again to Fig. 1, ll] indicates the vise portion and H the cutter portion of the device.
The vise portion I5 is intended to be held manufit) ally, or otherwise mounted upon a work bench, the crosswise edge of which coincides with the line I2 which indicates the boundary between the cutter portion ll and the vise portion It. The cutter portion 1 I is rotatable about the cable is which is shown in Fig. 1 both as projecting forward from the cutter portion I i and rearward from the vise portion I is. The vise portion l0 comprises a longitudinally grooved lower block Hi and an upper block I 5 through which a holding screw it, having a larg knurled head ll, projects. The two blocks are held together by screws as clearly indicated in Figure 1 of the drawings.
The cutter portion I I has more height and less length than the vise portion and is provided with four mutually attached side plates l3, 19, 18a and it'd, an axle 28 mounted in the plates I 9 and Ida which serves the purpose of retaining the cable longitudinally in an opening therethrough. The axle 20 is keyed to the plate I9 by means of a pair of keying screws 2|. The cutter portion is characterized by the presence of a locking screw 22 which also has a knurled head 23 and which is set into a boss 24 on a top closure and guide 25.
Referring now to Fig. 2, it will be seen that the cable I3 is retained in the vise portion I0 by a semi-cylindrical shoe 26 which is vertically adjustable in a recess 2? by virtue of the fact that it is loosely retained upon the inner end holding screw It so that the recess 2! will hold it parallel with the cable 13 notwithstanding the rotation of the screw It. The shoe 2? is adapted to cover about half of the cable circumference while acting as a vise jaw.
As will be seen from Fig. 2, the axle 20 extends from the front face of the cutting portion II well into the vise portion It and is there retained between blocks I 4 and I5 by a flange 28. The axle 20, which is of round cross-section in that portion of its length which is retained between the blocks I4 and I5 is provided near its forward end With flats 29, 3D and 3!. The flats 30 and 3| enable the axle 20 to fit respectively the front plate I9 of the cutter portion II and a rear plate I9a thereof. The flat 29, somewhat lower than flats 30 and 3|, is dimensioned by means of a pair of shoulders 32 to receive a vertically slidable block 33 into the top of which the upper set screw 22 is rotatably retained with a round key 34 which is shown in Fig. 3 behind plate I9. The slidable block 33 at its lower end is bored transversely for the accommodation of an arbor 35 upon which is mounted a cutting wheel 36 which may rotate on the arbor or be tightly pressed thereon so that the arbor rotates. A lower recess 37 in the axle 29 enables the cuttin wheel 36 to reach the cable I3 which lies in a cylindrical cavity 38 which can be seen in full line in Fig. 5 and in dashed line in Fig. 3.
At the bottom of the axle 20 as shown in Fig. 2, there is a fiat 39 which has shoulders 40 for the reception of the various plates including a bottom plate 4| which makes up that portion of the body of cutter portion II which is necessary to enclose the axle 20. Pins 42 lock the plate 4| to the plates I9 and I9a. Pins 43 lock the closure 25 to the same plates at the top of the cutter portion I. The efiect of this construction is to make the cutter portion body usable as a wrench to rotate the axle 20, which corresponds to a nut in that it has four flattened surfaces for the reception of a wrench, but differs from a nut in that it has considerable of a rotatable cylindrical bearing portion 20 enclosed within the blocks I4 and I5. The portion II is kept in good horizontal alignment by the cylindrical portion20.
As will be seen in Figs. 4 and 6, a threaded opening 44 for the reception of a set screw 45 is provided in the bottom plate 4| at the side thereof. The set screw 45 makes contact with the lower end of the vertically slidable block 33 to furnish a stop to regulate the depth of out which the cutting wheel 36 can make in the armor of the cable I3.
In operation, the screws I6 and 22 are first manually loosened, then the cable I3 is inserted into the vise portion I0 from the rear and is pushed forward through the cutter portion II until as much of the armor protrudes beyond the plate I9 as is judged suitable to be severed, taking into consideration the distance of the cutting wheel 36 from the front of the plate I9. Both screws I6 and 22 are then tightened, the cutting Wheel 36 just resting on the top of the armor. The screw 22 is then advanced just enough to make the cutting wheel 36 cut through the armor, but not through the strands of the cable. The set screw 45 is then adjusted with a screw driver from below so as to make firm contact with the vertical slide contact 33. The left hand then retains the vise portion against rotation while the right hand rotates the cutter portion II. The armor is now severed and the projecting piece is pulled forward with pliers to separate it from the cable strands. The device is now set for an infinite number of cuts if the dimensions of the cable and its armor remain the same. It makes no difference whether the rotation of the cutter portion is clockwise or counterclockwise, although clockwise rotation is more convenient for right handed persons. The cable is released from the device by loosening the screw I6. The foregoing operation may be accomplished more easily on the end of a bench so that the vise portion rests upon the bench and the cutter portion projects over the end, nevertheless the two can be used merely by holding it in the hands.
I claim as my invention:
1. A device for severing armor and the like circumferentially from cable, said device comprising a vise portion and a rotatable cutter portion, the vise portion comprising a lower grooved block, an upper grooved block and a screw-actuated holding device mounted in a recess above the groove of the lower block so as to be vertically adjustable therein, a flanged axle rotatably retained between said blocks, said axle forming a connection between the vise portion and the cutter portion, the latter comprising a vertically screw-adjustable block recessed at its lower end, an arbor mounted across the recess and a cutting wheel rotatable on said arbor, said cutting wheel projectin below the block into a recess in said axle so that said cutting wheel is able to contact cable laid longitudinally through said axle at the center of rotation thereof, a plurality of plates forming a case in which the block may be actuated, and through two of which said axle extends, a plurality of flats upon the axle in the cutter portion to give the axle a substantially quadrilateral cross section, top and bottom closures on said plates, an adjusting screw extending through the top closure into the vertically slidable block, said block and case constituting a wrench whereby the cutter portion may be rotated about the cable to enable the cutter portion to sever the armor.
2. A device according to claim 1 and in addition a vertically adjustable set screw in the lower closure of the case, said screw being adapted to be set to limit the downward travel of said vertically adjustable block and its associated cutter whereby to limit the depth of penetration to which the cutter can enter the cable when the block is forced downward under the urging of the adjusting screw.
References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 967,635 Hewitt Aug. 16, 1910 980,600 Church Jan. 3, 1911 1,306,588 France June 10, 1919 1,477,678 Wetmore Dec. 18, 1923 2,293,754 Ludke et al Aug. 25, 1942 2,317,944 Schaefer Apr. 27, 1943 2,446,558 Schwarz et al Aug. 10, 1948
US275449A 1952-03-07 1952-03-07 Cable vise and cutter for removing armor from cable Expired - Lifetime US2683930A (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735175A (en) * 1956-02-21 Aluminum cable cutter
US2743520A (en) * 1954-12-20 1956-05-01 Earl A Hofmaster Rod cutting device
US2875516A (en) * 1956-12-18 1959-03-03 Microdot Inc Cable and wire covering cutter
US2970377A (en) * 1959-08-31 1961-02-07 Olger B Olsen Pre-splicing tool for removing covering from cable
US3959877A (en) * 1975-01-03 1976-06-01 Peter Zorzenon Sheath cutting tool for flexible electrical cables
US4315368A (en) * 1980-01-14 1982-02-16 Thomas & Betts Corporation Optical fiber cleaving apparatus
US4372048A (en) * 1980-01-14 1983-02-08 Thomas & Betts Corporation Optical fiber cleaver with puller
US5592741A (en) * 1995-07-25 1997-01-14 Vassar; John J. Tube cutter
US5956852A (en) * 1997-05-12 1999-09-28 Capewell Components Company Cable stripping tool for removing insulation from ribbed cable
US6779350B2 (en) 2002-03-21 2004-08-24 Ritchie Enginerring Company, Inc. Compressor head, internal discriminator, external discriminator, manifold design for refrigerant recovery apparatus and vacuum sensor
US6832491B2 (en) 2002-03-21 2004-12-21 Ritchie Engineering Company, Inc. Compressor head, internal discriminator, external discriminator, manifold design for refrigerant recovery apparatus
US20090235531A1 (en) * 2008-03-24 2009-09-24 Schlumberger Technology Corporation Tube cutter to prevent damage to internal electrical or optical cables
US8006594B2 (en) * 2008-08-11 2011-08-30 Cardiac Dimensions, Inc. Catheter cutting tool
US20180056410A1 (en) * 2016-09-01 2018-03-01 Greenlee Textron Inc. Metal clad cable cutting machine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US967635A (en) * 1908-04-08 1910-08-16 Safety Armorite Conduit Company Device for removing metallic coverings from insulated conductors.
US980600A (en) * 1907-04-27 1911-01-03 Lewis H Church Cutter for cable armor and tubing.
US1306588A (en) * 1919-06-10 Insulated-wibe-stripping machine
US1477678A (en) * 1921-02-07 1923-12-18 Miner P Wetmore Machine for stripping insulation from electric wires
US2293754A (en) * 1940-11-20 1942-08-25 Alex A Ludke Sheath removing mechanism
US2317944A (en) * 1940-10-11 1943-04-27 Joseph K Schaefer Cutting tool for bx armored cable and tubing
US2446558A (en) * 1945-03-12 1948-08-10 Carl W Schwarz Bench tool for stripping armor from cable

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1306588A (en) * 1919-06-10 Insulated-wibe-stripping machine
US980600A (en) * 1907-04-27 1911-01-03 Lewis H Church Cutter for cable armor and tubing.
US967635A (en) * 1908-04-08 1910-08-16 Safety Armorite Conduit Company Device for removing metallic coverings from insulated conductors.
US1477678A (en) * 1921-02-07 1923-12-18 Miner P Wetmore Machine for stripping insulation from electric wires
US2317944A (en) * 1940-10-11 1943-04-27 Joseph K Schaefer Cutting tool for bx armored cable and tubing
US2293754A (en) * 1940-11-20 1942-08-25 Alex A Ludke Sheath removing mechanism
US2446558A (en) * 1945-03-12 1948-08-10 Carl W Schwarz Bench tool for stripping armor from cable

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2735175A (en) * 1956-02-21 Aluminum cable cutter
US2743520A (en) * 1954-12-20 1956-05-01 Earl A Hofmaster Rod cutting device
US2875516A (en) * 1956-12-18 1959-03-03 Microdot Inc Cable and wire covering cutter
US2970377A (en) * 1959-08-31 1961-02-07 Olger B Olsen Pre-splicing tool for removing covering from cable
US3959877A (en) * 1975-01-03 1976-06-01 Peter Zorzenon Sheath cutting tool for flexible electrical cables
US4315368A (en) * 1980-01-14 1982-02-16 Thomas & Betts Corporation Optical fiber cleaving apparatus
US4372048A (en) * 1980-01-14 1983-02-08 Thomas & Betts Corporation Optical fiber cleaver with puller
US5592741A (en) * 1995-07-25 1997-01-14 Vassar; John J. Tube cutter
US5956852A (en) * 1997-05-12 1999-09-28 Capewell Components Company Cable stripping tool for removing insulation from ribbed cable
US6779350B2 (en) 2002-03-21 2004-08-24 Ritchie Enginerring Company, Inc. Compressor head, internal discriminator, external discriminator, manifold design for refrigerant recovery apparatus and vacuum sensor
US6832491B2 (en) 2002-03-21 2004-12-21 Ritchie Engineering Company, Inc. Compressor head, internal discriminator, external discriminator, manifold design for refrigerant recovery apparatus
US20050092010A1 (en) * 2002-03-21 2005-05-05 Ritchie Engineering Company, Inc. Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus
US7073346B2 (en) 2002-03-21 2006-07-11 Ritchie Engineering Company, Inc. Compressor head, internal discriminator, external discriminator, manifold design for refrigerant recovery apparatus and vacuum sensor
US7159412B2 (en) 2002-03-21 2007-01-09 Ritchie Engineering Company, Inc. Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus
US7310965B2 (en) 2002-03-21 2007-12-25 Ritchie Engineering Company, Inc. Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus
US20090235531A1 (en) * 2008-03-24 2009-09-24 Schlumberger Technology Corporation Tube cutter to prevent damage to internal electrical or optical cables
US8006594B2 (en) * 2008-08-11 2011-08-30 Cardiac Dimensions, Inc. Catheter cutting tool
US20110308367A1 (en) * 2008-08-11 2011-12-22 Hayner Louis R Catheter Cutting Tool
US8250960B2 (en) * 2008-08-11 2012-08-28 Cardiac Dimensions, Inc. Catheter cutting tool
US20180056410A1 (en) * 2016-09-01 2018-03-01 Greenlee Textron Inc. Metal clad cable cutting machine
US11633794B2 (en) 2016-09-01 2023-04-25 Greenlee Tools, Inc. Control device for and method of operating a metal clad cable cutting machine
US11717900B2 (en) 2016-09-01 2023-08-08 Greenlee Tools, Inc. Metal clad cable cutting machine

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