Grooving Patents (Class 83/875)
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Patent number: 6273975Abstract: A method for producing a metal strip which reduces the risk of the strip breaking over the course of a path, the strip being conveyed under stress in the strip direction and in which, in an upstream feed path of the metal strip, defects in the edges of the strip are detected and then measures are taken to reduce the risk of these defects causing the strip to break, in which method the strip is provided, in the region of the detected defect, with at least one notch in the strip direction, at a distance which is further away from the edge of the strip than the maximum dimension of the defect transversely with respect to the strip direction.Type: GrantFiled: June 27, 2000Date of Patent: August 14, 2001Assignee: Corus Technology B.V.Inventor: Frits Van Der Meulen
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Publication number: 20010001377Abstract: Method for the rapid cleaning of produce with minimal loss, and apparatus to perform the method. The cleaning method taught in the present application enables the rapid cleaning of produce by removing an extraneous portion therefrom, by separating the extraneous portion from the body of the produce, and by urging the cleaned produce towards a collection device. These steps are attainable, using the principles of the present invention, by a working using only one motion and one hand. To perform the method, a novel aperture knife is taught which, rendered attachable to an agricultural processing implement by an integral attachment device, enables one-handed operation by a user. The knife includes a generally planar knife body in operative combination with an elevated blade which not only enables the severing of the extraneous portion from the produce body, but separates the extraneous portion therefrom, and guides the cleaned produce body towards a collection device, for instance a picking box.Type: ApplicationFiled: May 22, 1998Publication date: May 24, 2001Inventors: EDWARD ORTEGA, CARLOS ORTEGA
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Patent number: 6230603Abstract: A cutting blade for resistance-heated elastomer cutters generally comprising a cutting edge and supporting portion joined together. The cutting edge is made of material which possesses significantly higher electrical and thermal conductivity than the material composing the supporting portion. When electrical current flows through the cutting blade, significant portion of thermal energy is generated and concentrated in the cutting edge. The cutting edge is the part of the cutting blade most directly involved in cutting of elastomer material. The generation and concentration of thermal energy in the cutting edge results in more efficient and better quality cutting and reduces heat damage done to the cutting blade and material being cut.Type: GrantFiled: April 29, 1996Date of Patent: May 15, 2001Inventor: Zbigniew Kubala
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Patent number: 6138546Abstract: A hand operated cutting apparatus and method of cutting mat board, glass, and other related sheet-like framing material. The apparatus has a cutting head assembly which includes a plurality of interchangeable and adjustable blade holding units. Each blade holding unit provides a different type of cut, such as a beveled, straight edge, or V-groove cut. Most of the blade holding units are intended for use with mat board, but some can be used to cut and trim sheet-like glass or plastic framing material. Each blade holding unit is also capable of vertical adjustment relative to the workpiece so that various depths of cut can be provided. The method of cutting a mat board permits the mat board to be positioned face up on the base board of the cutting apparatus and does not require flipping or taping of the mat board during V-groove cutting operations.Type: GrantFiled: January 14, 1999Date of Patent: October 31, 2000Assignee: John Knoell & Sons, Inc.Inventor: William A. Hursey
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Patent number: 6112736Abstract: An apparatus for cutting grooves in a green concrete slab having at least one terminating side edge transverse to a broad top surface in a low cost manner is described and includes the following elements: a hand-held portable rotary saw, supported on a rollable platform disconnectably connected to and supporting the relative to the green concrete slab. The rollable platform includes a planar base in surface contact with a conventional guide plate of the saw, and flared side walls extending outwardly from the planar base an anchoring portion adapted to receive a human-generated force to provide rectilinear travel along a preselected direction over the green concrete slab. The planar base also includes a slot in alignment with an opening in the guide plate through which the saw blade extends whereby a working plane of reference is defined that intersects an axis of rotation of the saw blade whereby a maximum depth of cut is easily defined coincident with the working plane of reference.Type: GrantFiled: March 23, 1998Date of Patent: September 5, 2000Inventor: Martin A. Bearden
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Patent number: 6073532Abstract: A cove molding setup device comprising a platform having a bottom fork adapted to be supported upon a saw table arbor beside a disc blade; a slide bar mounted upon said platform at a plurality of transverse positions with respect to said base fork; a protractor mounted to said slide bar at a plurality of rotatably adjustable angles about a pivot; and a fence guide bar adjustably mounted to said protractor at a plurality of distances from said pivot.Type: GrantFiled: May 25, 1999Date of Patent: June 13, 2000Inventor: Capel C. English
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Patent number: 6071221Abstract: A cutting device is provided including a base adapted for being fixedly positioned on a piece of material to be cut. Also included is a handle slidably mounted on the base. Next provided is a control assembly including a shaft slidably mounted on the handle. The shaft of the control assembly is adapted to be slid between a first orientation wherein the shaft extends downwardly past a bottom face of the base and a second orientation wherein the shaft resides above the bottom face of the base. Finally, a blade or a creasing attachment is included for being mounted on the shaft.Type: GrantFiled: December 17, 1998Date of Patent: June 6, 2000Inventor: Jorge D. Lozano
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Patent number: 6055729Abstract: A method for manufacturing a liquid jet recording head comprises the steps of obtaining a laminated body by laminating a liquid path formation layer forming liquid paths on a metallic base board having discharge energy generating elements on it, forming an orifice surface by cutting the laminated body thus obtained, and grinding the orifice surface thus formed by use of a cutting tool or a milling cutter. With this method that uses a metallic base board, it is possible to obtain a high-performance yet an inexpensive liquid jet recording head without any defects on the orifice surface, which contributes to implementing more stabilized liquid discharge.Type: GrantFiled: December 24, 1996Date of Patent: May 2, 2000Assignee: Canon Kabushiki KaishaInventor: Toshio Suzuki
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Patent number: 6041837Abstract: A jig for cutting a finger joint which eliminates the trial and error required to adjust the spacing between the key and the cutting blade. A key and an abutment are arranged on one side of the cutting blade. The key is connected to an alignment ledge on the opposite side of the cutting blade. The key, abutment, and alignment ledge can be aligned with the cutting blade so that the blade will trim all three when they pass over. When the cut is made, a gap is left which is the exact width of the blade. After the cut, the alignment ledge can be slide toward the abutment, closing the gap. The key, connected to the alignment ledge, moves a corresponding distance away from the blade. The key can then be fixed in position. A workpiece can then be placed flush against the trimmed face of the key and be cut, leaving a finger, between the key and the blade, which is the exact width of the adjacent kerf, formed by the blade.Type: GrantFiled: June 12, 1997Date of Patent: March 28, 2000Inventor: Thomas William Hanson
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Patent number: 6029349Abstract: A method of making a number of adjacent ducts with a required duct side and duct spacing in a duct plate for an inkjet print-head. The method includes the steps of pressing a non-rotating toothed bit from a starting position into the duct plate, moving the bit and the duct plate relatively to one another in such manner that a first groove is cut in the duct plate and returning the bit and/or duct plate to the starting position. The bit is then moved relatively to the duct in a direction of the first groove in such a manner that a subsequent tooth of the bit situated next to the first tooth comes to lie just above the first groove. These steps are then repeated in such manner that the depth of the grooves correspond to the required duct depth.Type: GrantFiled: September 12, 1997Date of Patent: February 29, 2000Assignee: OCE-Technologies, B.V.Inventors: Ronald Berkhout, Godefridus G. H. Gielen
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Patent number: 5947173Abstract: A cutting apparatus that performs cutting operations without being held by an operator and that is applicable to various cutting operations in addition to forming a biscuit groove. The cutting apparatus comprises a first base portion having a mount surface on which a work is mounted; a second base portion having an abutment surface with which a work surface to be worked is brought into contact; and a cutter holding portion capable of holding a circular saw blade so as to extend beyond the abutment surface toward the work. The cutter holding portion is turnable, with respect to the second base portion, around an axis perpendicular to the abutment surface.Type: GrantFiled: February 24, 1998Date of Patent: September 7, 1999Assignee: Ryobi LimitedInventor: Kouichi Miyamoto
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Patent number: 5943933Abstract: A cutting mechanism for accurately cutting a notch in a piece of edging, to permit sharp bending of the piece of edging for a picture or plaque, is disclosed. The cutting mechanism comprises a jig secured to a base member, the jig being dimensioned to receive the piece of edging clamped thereto. A cutting blade is mounted on the base member for reciprocating movement between a first retracted position whereat the cutting blade is remote from the jig and a second fully extended position whereat the cutting edge has passed through the jig. The cutting blade has an inverted "V"-shaped cutting edge comprising two blade portions joined one to the other at a central vertex.Type: GrantFiled: July 23, 1997Date of Patent: August 31, 1999Inventors: Murray Evans, Thomas Thomas
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Patent number: 5941151Abstract: A method and apparatus for determining a workpiece's surface position. One embodiment of the invention includes two conductive bodies that are insulated from each other. During a surface position determining operation, one of these bodies has a first potential, while the other body has a second potential. These bodies are then moved towards a conductive surface of the workpiece, until both of these bodies are electrically detected to contact the surface. Finally, the distance that one of these bodies traverses is used to identify the position of the surface of the workpiece.Type: GrantFiled: October 4, 1995Date of Patent: August 24, 1999Assignee: Acuson, CorporationInventors: Anthony A. Amon, Anthony M. Rogers, Michael A. Morasci
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Patent number: 5937518Abstract: A finished workpiece of malleable metal containing a saw cut which does not require deburring because the small burr on the exit side of the cut is concealed within a three sided notch. An elongated notch, closed on three sides, is formed on the side of the blank workpiece from which the saw blade exits. The depth of the cut is adjusted so that the bottom of the cut, together with its attendant burr, intersects with the notch. The burr is thus attached to a wall within the notch. The width of the notch is adjusted so that the anticipated tolerance in the depth of the cut (and thus the location of the bottom of the cut) is accommodated. The width of the notch is such that the bottom of the cut will intersect the notch at any location within the anticipated tolerance envelope. The depth of the notch is sufficient to conceal the burr.Type: GrantFiled: January 5, 1998Date of Patent: August 17, 1999Assignee: International Electronic Research Corp.Inventor: Ronald E. Steiner
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Patent number: 5918523Abstract: A system for guiding a cutting tool utilizing a beam generator and a platten having a surface which is capable of presenting a pattern. The beam impinging on the platten is discernable. The beam generator is aligned with the cutting portion of the cutting tool such that the beam on the surface of the platten represents the position of the part of the cutting tool relative to a work piece. An operator may cut a pattern in the work piece by following the pattern on the platten with the beam image on the platten.Type: GrantFiled: April 3, 1998Date of Patent: July 6, 1999Inventor: Jack Cutter
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Patent number: 5889911Abstract: A method of precision machining at least one cut into an article having a non-uniform surface, wherein the cut is of substantially constant depth relative to the non-uniform surface. One aspect of the invention is a machined optical wafer having two adjacent notches, to serve as a platform for a fiber optic pigtail, machined into the edge of the wafer. Another aspect of the invention is a method of automatically machining a plurality of notches into an optical wafer. For optical wafers having embedded light paths, light detected from these light paths may be used to compensate for the variation in embedded depth of the light paths.Type: GrantFiled: September 20, 1994Date of Patent: March 30, 1999Assignee: Corning, Inc. U.S.A.Inventor: Patrick Jean Pierre Herve
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Patent number: 5875827Abstract: The router table push shoe 10 of the present invention has an upwardly extending handle 11 which is angled slightly towards the operator and away from the router table fence 55. The push shoe of the present invention comes with an adjustable bottom guard 20 removably attached to the base 40, and an adjustable side guard 12 which can be removed and used as a bit height measuring tool. Both the bottom guard 20 and the side guard 12 are adjustable to enable the push shoe 10 to hold thin and narrow stock. The push shoe 10 also comes equipped with a miter bar 30. The horizontally adjustable bottom guard 20 is removably attached to the base 40 via a three wing knob 22. The push shoe also has formed in the front right corner a dovetail gauge 17 for making both male and female joints for sliding dovetail joints.Type: GrantFiled: June 10, 1998Date of Patent: March 2, 1999Assignee: Vermont American CorporationInventors: David T. Brutscher, John P. Spiegelhalter
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Patent number: 5829135Abstract: A pulley shaft and stationary pulley assembly for a belt drive mechanism of a continuously variable transmission includes an inner surface of the pulley having metal-cutting serrations, a blocking shoulder, and a surface for engaging a pilot guide surface formed on the shaft. The shaft, formed of softer material than the hardened pulley, includes a shoulder adapted to have serrations formed in it during the assembly process, a hardened pilot guide, and a blocking shoulder adapted to contact the blocking shoulder of the pulley.Type: GrantFiled: December 5, 1996Date of Patent: November 3, 1998Assignee: Ford Global Technologies, Inc.Inventors: Phillip Thomas Koneda, Stephen John Agdorny, Thomas Arthur McGinn
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Patent number: 5806401Abstract: A sawmill for milling a length of sawbolt includes a frame and a plurality of saws movably mounted to the frame. The plurality of saws include bandsaws, edging saws, and chain saws for making various cuts necessary in the milling process. A saw positioning system is coupled to the plurality of saws for positioning the saws relative to the frame. A controller is coupled to the saw positioning system. The controller provides a saw position signal and the saw positioning system positions the saws in response to the saw position signal. A number of log positioning mechanisms are also provided.Type: GrantFiled: August 26, 1996Date of Patent: September 15, 1998Inventors: Edward Rajala, Alfred Siegel, Orie Taylor
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Patent number: 5802948Abstract: A crayon sharpening assembly is disclosed comprising an axially rotating cartridge block (106) having an axial bore (178) for axial receipt of a crayon with a forward end of the crayon positioned within a cutting station (152). A pair of convergent sharpening blades (158, 160) carve a conical nose into the forward crayon end; a secondary horizontal blade (180) engages the forward crayon end and cuts an annular stepped shoulder surrounding the conical nose; and a preparatory vertical blade (188) makes a vertical circumscribing cut through the jacket of the crayon proximate the forward end, whereby restoring the forward crayon end into its manufactured form. A carrying case (12, 14) is provided having a pivotal lid (16), with the sharpener drive assembly (20, 22) built into one end wall. A drawer assembly (100) is removable from the end wall and contains the cartridge block (106) and a housing (102) for collecting shavings generated in the sharpening procedure.Type: GrantFiled: January 15, 1997Date of Patent: September 8, 1998Assignee: The Little Tikes CompanyInventors: John J. Andrisin, III, David D. Hayes, G. Stewart Lenox, Robert L. Quinlan, Douglas Zlatic
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Patent number: 5797174Abstract: There is disclosed an apparatus for forming curved and rectangular bodied needle blanks from a length of needle stock which includes a generally cylindrical inner mandrel having a plurality of longitudinal channels formed in an outer surface thereof, the mandrel being dimensioned and configured for insertion within the length of needle stock. The apparatus also includes a plurality of broaches insertable into the longitudinal channels such that an edge of each broach projects radially outwardly of the mandrel to form a plurality of inner grooves on an inner surface of the length of needle stock.Type: GrantFiled: May 6, 1997Date of Patent: August 25, 1998Assignee: United States Surgical CorporationInventors: Thomas D. Guy, Terry C. Eisensmith, Donald A. Morin
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Patent number: 5797619Abstract: An arrangement for forming an opening in an auto interior trim panel or piece normally having no visible indication of the opening just prior to inflation of an inflatable air bag, allowing deployment of the air bag into the passenger compartment of vehicle, the arrangement including a linear element positioned below the skin of the trim panel or wheel cover in a pattern corresponding to the opening. In a first embodiment a heat generating element is employed as the linear element which when activated degrades the covering skin layer of the trim piece in pattern shape. In a second embodiment detonating cord enclosed in a metal tube is employed with a series of holes directing the energy of detonation to sever the panel skin material. In a third embodiment a split sleeve having explosive coating on the inside is used to create a flame front severing the panel skin in the appropriate pattern.Type: GrantFiled: May 5, 1997Date of Patent: August 25, 1998Assignee: Tip Engineering Group, Inc.Inventors: David J. Bauer, deceased, John W. Bauer, Jr., executor
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Patent number: 5786266Abstract: A method of cutting a plate-like wafer, particularly a semiconductor wafer, while removing a deposited material from along a scribe line. The deposited material having a width generally greater than the width of the saw blade. The method includes making one scribing cut to one side of the scribe line, making a second scribing cut to the other side of the scribe line, and making a severing cut along the scribe line to dice the wafer.Type: GrantFiled: September 16, 1996Date of Patent: July 28, 1998Assignee: LSI Logic CorporationInventor: Mirek Boruta
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Patent number: 5735326Abstract: A method of making a base for a split jamb for a door frame opening, with the base having a groove for receiving the tongue of a slide of a split jamb, including the steps of providing an elongate panel, making a plurality of parallel cuts in the panel, with the cuts not cutting through the panel, the cuts including a plurality of pairs of slots, with the slots of a pair spaced from each other leaving panel material between the slots of each pair, adhering a stop strip over each pair of slots covering the slots of the pair, and gang sawing the panel into jamb base strips by cutting between the slots of each pair of slots to remove the panel material between the slots providing individual jamb base strips. The method wherein the step of making parallel cuts includes making a plurality of notches spaced from each other by the pairs of slots, and wherein the step of gang sawing includes cutting through the panel at each of the notches.Type: GrantFiled: March 18, 1997Date of Patent: April 7, 1998Inventor: Marc A. Seidner
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Patent number: 5682940Abstract: There is disclosed an apparatus for forming curved and rectangular bodied needle blanks from a length of needle stock which includes a generally cylindrical inner mandrel having a plurality of longitudinal channels formed in an outer surface thereof, the mandrel being dimensioned and configured for insertion within the length of needle stock. The apparatus also includes a plurality of broaches insertable into the longitudinal channels such that an edge of each broach projects radially outwardly of the mandrel to form a plurality of inner grooves on an inner surface of the length of needle stock.Type: GrantFiled: January 23, 1996Date of Patent: November 4, 1997Assignee: United States Surgical CorporationInventors: Thomas D. Guy, Terry C. Eisensmith, Donald A. Morin
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Patent number: 5682805Abstract: An ultrasonic motor with a vibratory body which has plural groove groups formed in a surface of the vibratory body. Each groove group has at least two grooves which are formed parallel to one another. If the vibratory body has an annular shape, a groove forming member having as many cutting members as grooves in each groove group moves in a radial direction of the vibratory body while the cutting members rotate, simultaneously cutting each groove of a groove group in the surface of the vibratory body. When advancing vibratory waves are generated in a circumferential direction of the vibratory body, the state of vibration of the grooves in a groove group differs, and the resonance of the grooves is suppressed. If the vibratory body has a linear shape, the cutting members rotate as the groove forming member moves perpendicular to the vibratory body, simultaneously cutting each groove of a particular groove group.Type: GrantFiled: August 5, 1996Date of Patent: November 4, 1997Assignee: Nikon CorporationInventor: Kazuyasu Ohne
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Patent number: 5613417Abstract: In order to enhance the effectiveness and efficiency of forming a groove in a board, an apparatus and method are disclosed. The apparatus includes a station for feeding the board from a supply of boards, a table for supporting the board upon receipt from the feeding station, a cutter for forming the groove while the board is supported by the table, and a station for removing the board after the groove has been formed. It is among the unique aspects of the disclosure that the table is moved relative to the cutter such that a grooved board can be removed from the table with the material defining the groove having been separated therefrom just after another board on the table has been grooved. The method includes the steps of feeding the board from a supply of boards at a feeding station, supporting the board after the board has been fed from the feeding station, forming the groove in the board while the board is being supported, and removing the board after forming the groove at a removing station.Type: GrantFiled: April 10, 1996Date of Patent: March 25, 1997Assignee: R. R. Donnelley & Sons CompanyInventors: Gavin Scobbie, Thomas P. McQueeny, Mel S. Kristmann, Richard C. Hennessey
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Patent number: 5603253Abstract: A method and apparatus are provided for cutting a decorative groove in a matboard. The matboard is positioned adjacent a guide. A carrier is adapted to be moved along the guide with two blades oriented in separate planes which intersect each other and which lie at an oblique angle relative to the matboard. One of the blades is inserted into the matboard at a selected first depth. The carrier is moved along the guide for a predetermined length of travel to make a first cut in the matboard defining a first side of the groove. The blade is then retracted. Then the other blade is next inserted into the matboard to a selected depth at least intersecting the first cut. The carrier is then moved back to the initial location to make a second cut in the matboard defining a second side of the groove. In a preferred embodiment, the tips of the blades are offset from each other relative to the length of the groove.Type: GrantFiled: February 4, 1994Date of Patent: February 18, 1997Inventor: Malcolm Logan
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Patent number: 5580831Abstract: The present invention is a method for producing alignment marks on opposite faces of a generally flat substrate such as a semiconductor wafer. First, reference cuts are produced at the edges of the substrate at four points around the wafer. Next, the center line is determined on the first face of the substrate between two oppositely disposed reference cuts. First and second grooves are then cut in the first face of the substrate a first predetermined distance from the first center line. Third and fourth grooves are cut in the first face perpendicular to and through the first and second grooves at the first predetermined distance from the second reference cut forming crosshair alignment patterns. Next, the center line is determined on the second face of the substrate between the third and fourth reference cuts, and fifth and sixth grooves are cut in the second face of the substrate a second predetermined distance from the second center line.Type: GrantFiled: July 28, 1993Date of Patent: December 3, 1996Assignee: Fujitsu LimitedInventor: James J. Roman
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Patent number: 5567504Abstract: A glass fiber duct board has longitudinally extending, spaced-apart grooves in a major surface that facilitate the folding of the duct board into an air duct. The major surface, including the grooves, is coated with a polymeric latex coating to encapsulate glass fibers and dust within the surface of the duct board. The polymeric latex coating is applied to the surfaces of the grooves as a foam by application nozzles located downstream of groove cutting tools. The polymeric latex coating applied by the nozzles is distributed over the surfaces of the grooves and set to a predetermined thickness by wiper blades, located downstream of the nozzles, which have edge configurations complementary to the transverse configurations of the grooves being coated.Type: GrantFiled: May 31, 1994Date of Patent: October 22, 1996Assignee: Schuller International, Inc.Inventors: Eric G. Schakel, Robert R. Coleman, Kent R. Matthews, Lowell K. Morton
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Patent number: 5561897Abstract: A slope is provided from a heater area to the side of the edge of a substrate near the heater area. A resistance film layer and a common electrode are provided on the slope which is formed as a convexly curved surface. In the slope, a reinforcement conductor along the common electrode is embedded below the resistance film layer.Type: GrantFiled: June 1, 1995Date of Patent: October 8, 1996Assignee: Rohm Co., Ltd.Inventor: Hiroaki Ohnishi
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Patent number: 5557998Abstract: A coring apparatus for coring a substantially annular food item includes a base member, a post member extending from the base member, the post member including a drive shaft guide structure, a drive shaft having a longitudinal axis and being rotatably fitted through the guide structure, the drive shaft having shaft external threads, a mechanism for engaging the shaft external threads, so that rotating the drive shaft relative to the post member causes the drive shaft to advance along the longitudinal axis relative to the post member, a food item cutting element mounted on the drive shaft including arched blades having blade cutting edges radially spaced from the drive shaft longitudinal axis for cutting along a circular path, and a food item holding structure connected to the mounting base and located within the longitudinal axis of the drive shaft and adjacent to the cutting element for securing the food item against rotation relative to the post member so that the cutting element is advanced toward the holdType: GrantFiled: December 19, 1994Date of Patent: September 24, 1996Inventors: Eli H. Schwartz, Jerilyn H. Schwartz
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Patent number: 5543000Abstract: A radiating cable comprises a core having a center conductor bonded to, centered in, and supported by discs of dielectric material. A sleeve of dielectric material is extruded over the discs and thereby bonded thereto to form a plurality of sealed, coaxial, dielectric chambers. A tubular outer conductor is bonded in concentric relation to the sleeve. In a continuous process, at least one slot is formed in the outer conductor by a cutting operation and an outer jacket is extruded over the outer conductor. In a preferred embodiment, the outer conductor is made of an aluminum tube and two circumferentially equally spaced slots are formed therein by removing between 10 and 35% of the aluminum material. The width of the resulting slots may be configured so that a joint is formed in the slot between the insulating sleeve and the outer jacket, thus obviating the use of adhesive in bonding the outer jacket to the cable.Type: GrantFiled: August 15, 1994Date of Patent: August 6, 1996Assignee: Trilogy Communications, Inc.,Inventor: Roger M. Lique
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Patent number: 5533430Abstract: An archery target having a threaded bore directed medially thereof, with the archery target having a first density and an insert threadedly received within the target, having a second density at variance relative to the first density. An apparatus for effecting the cutting of a helical groove within the target block, such that a support yoke mounts an electrical heated resistance wire having a loop directed into the wire, whereupon rotation of the wire loop within a target block bore effects axial displacement of the cutting wire relative to the bore of the target block to impart a groove into the bore of helical configuration to threadedly receive the insert within the bore.Type: GrantFiled: August 11, 1994Date of Patent: July 9, 1996Inventor: William L. Buch
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Patent number: 5492582Abstract: A method of manufacturing a liquid crystal display device, in which predetermined portions of two glass plates bonded to each other with a sealing member interposed therebetween and constituting the display device, can be cut without turning over the bonded two glass plates and without breaking necessary portions thereof. In the method of manufacturing the liquid crystal display device, first, an upper one of the bonded two glass plates is half cut from its upper surface with a blade, and unnecessary portions of the upper glass plate are removed by the use of a vacuum suction head. Thereafter, predetermined portions of exposed portions of a lower one of the bonded two glass plates are fully cut with the blade. In accordance with it, it is not necessary to turn over the the bonded two glass plates-to cut it into a plurality of units, and, therefore, a cutting process can be performed automatically.Type: GrantFiled: April 19, 1994Date of Patent: February 20, 1996Assignee: Casio Computer Co., Ltd.Inventors: Akihiko Ide, Tetsuro Ueki
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Patent number: 5486133Abstract: A toothed timing belt is produced from a belt blank utilizing an apparatus having a belt blank fixturing device for supporting the belt blank for selective indexable rotation about a first axis and a toothed grinding wheel rotatable about a second transverse axis and supported for movement across the width of the belt blank in a direction parallel to the first axis for cutting a series of circumferentially spaced transverse teeth into the belt blank. The belt blank is indexed with each pass of the grinding wheel until the entire belt has been provided with teeth. The toothed belt blank may then be severed about its periphery to provide a plurality of discrete timing belt members.Type: GrantFiled: May 31, 1994Date of Patent: January 23, 1996Inventor: Jerry Russell
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Patent number: 5483736Abstract: A slope is provided from a heater area to the side of the edge of a substrate near the heater area. A resistance film layer and a common electrode are provided on the slope which is formed as a convexly curved surface. In the slope, a reinforcement conductor along the common electrode is embedded below the resistance film layer.Type: GrantFiled: June 3, 1994Date of Patent: January 16, 1996Assignee: Rohm Co., Ltd.Inventor: Hiroaki Ohnishi
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Patent number: 5433563Abstract: A tool for preparing a substrate edge of a counter-top to accept a molded apron having at least two perpendicular appendages. The tool includes cutters for cutting a channel and/or a rabbet into the substrate edge. The spacing between the cutting edges of the cutters corresponds to a spacing between the perpendicular appendages of the molded apron.Type: GrantFiled: August 25, 1994Date of Patent: July 18, 1995Assignee: Fred M. Velepec Co., Inc.Inventor: Fredric A. Velepec
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Patent number: 5421938Abstract: A round duct and apparatus and method of forming the duct in which the side edges of the duct are formed to interlock when the duct is folded and the flap is secured in place to provide support when the finishing duct tape is applied to seal the flap and complete the joint.Type: GrantFiled: October 8, 1992Date of Patent: June 6, 1995Assignee: Glass Master CorporationInventor: Robert A. Cunningham, Jr.
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Patent number: 5415211Abstract: An apparatus for machining a square inside corner on a workpiece. The apparatus comprises a rotatable shaft, a device cooperating with the shaft for transferring the rotating motion of the shaft to transverse oscillating motion, and a cutting tool mounted to the device and moving in the transverse oscillating motion. The cutting tool preferably includes a blade contoured to produce the desired cutting surface. Both edges of the blade are cutting edges and are disposed at a 45.degree. angle. The device comprises a pin mounted on and offset from the shaft, a sliding plate to which the cutting tool is mounted, and a pair of sliding sleeves on either side of the sliding plate. The sliding plate includes an elongated slot to receiving the pin so that as the shaft rotates, the pin is moved within the slot causing the sliding plate to slide transversely within the sliding sleeves to provide the transverse oscillating motion.Type: GrantFiled: October 15, 1993Date of Patent: May 16, 1995Assignee: Thermwood CorporationInventors: Kenneth J. Susnjara, Michael P. Hardesty
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Patent number: 5399049Abstract: A dedicated V-shaped groove forming machine comprises an X-axis slider disposed over a plate material so as be movable in an X-axis (groove forming direction); a Z-axis slider supported by the X-axis slider so as to be movable in a Z-axis direction (vertical direction); and plural cutting tools mounted on the Z-axis slider; and a Y-axis carriage for moving a plate material (workpiece) in a Y-axis direction (perpendicular to the X-axis direction). Further, there are provided work table adjusting device for adjusting the cutting tool movement locus in parallel to the work table and tool height detecting device for determining an origin in the Z-axis direction, etc.Type: GrantFiled: January 6, 1993Date of Patent: March 21, 1995Assignee: Amada Company, LimitedInventors: Nobuo Abe, Nobuyuki Kinnou, Toshihide Ohara, Kazunori Kuga, Yoshiharu Komizo, Takara Kibe, Hideyuki Fujikawa
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Patent number: 5387305Abstract: The process for the production of a thermoelectrically weldable zone in thermoplastic materials is significantly improved by the true-to-size, air-free embedding of the heating conductor at a clearly defined depth below the joining surface. For this purpose in a first process step a sublevel wire bed bottom is cut in the material, in which is cut a substantially inverted T-shaped incision, running in two planes and at the desired depth, measured from the material surface and, following the surface profile, the cut is passed along the heating conductor insertion line. Using the same tool the cover strips formed are raised and stretched along the path of cut, so that an open channel is formed with the sublevel wire bed bottom. Preferably in the same operation the wire bed is also cut true-to-size with a cutting tool and corresponding to the heating conductor. In a later process step the heating conductor is placed through the still open channel, the cover strips are pressed and then melted.Type: GrantFiled: September 10, 1993Date of Patent: February 7, 1995Assignee: Streng Plastic AGInventor: Alfred Streng
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Patent number: 5383755Abstract: An apparatus in a book binding machine for binding books by gluing includes a notch cutting tool for producing notches in the back of the book block, wherein the notches extend approximately transversely of the back of the book block. The notch cutting tool is mounted for cutting notches in a portion of the book block which projects from a mounting device. A rotatably mounted abutment has a cylindrical support surface for laterally supporting the projecting portion against the cutting force exerted by the notch cutting tool. A guide plate is mounted rearwardly offset from the cylindrical support surface of the abutment. The guide plate has a groove surrounding the travel path of the notch cutting tool and the cylindrical support surface of the abutment is located opposite the groove in the guide plate.Type: GrantFiled: June 17, 1993Date of Patent: January 24, 1995Assignee: Grapha-Holding AGInventors: Fredy Hassig, Marcel Stolz
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Patent number: 5381595Abstract: An adjustable fence for orienting a plate joiner having a body and a rotating generally planar cutter to cut an arcuate slot in a workpiece is disclosed. The fence comprises a base, a handle and fastening means. The base is shiftably affixed to the plate joiner body and has a planar surface forming a first fence oriented generally perpendicular to the plane of the cutter. The base also has a guideway parallel to the first fence. The handle is movably adjustably affixed to the base and has a grip portion adapted to cooperate with a hand of an operator and a planar surface forming a second fence forming an angle relative to the first fence. The handle cooperates with the base guideway enabling the second fence to be adjusted along a guideway axis parallel to the first fence relative to the planar cutter. The handle is pivotal about a transverse axis parallel to the first and second fences to vary the angle of the second fence relative to the first fence.Type: GrantFiled: September 3, 1993Date of Patent: January 17, 1995Assignee: Ryobi Motor Products, CorpInventors: James A. Keith, Jr., William S. Bellew, James R. Sistare, Sr.
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Patent number: 5355755Abstract: It is an object of the present invention to provide a circuit board trimming apparatus and method used, in which apparatus and method a wiring pattern on a printed circuit board is trimmed, and to provide a circuit board trimming apparatus and method, in which apparatus and method a wiring pattern is trimmed efficiently while damage to the circuit board is minimized.A force exerted by a cutter against the circuit board is measured when the wiring pattern is cut by pressing an ultrasonic cutter against the wiring pattern on the circuit board and by moving the circuit board and the cutter relative to each other, a shape of the wiring pattern being determined on the basis of the force thus measured and a cutting process being controlled in accordance with the shape of the wiring pattern.Type: GrantFiled: June 3, 1993Date of Patent: October 18, 1994Assignee: Fujitsu LimitedInventors: Yuji Sakata, Hidenori Sekiguchi, Fumio Tabata
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Patent number: 5348431Abstract: A precision cutting process machine aligns a workpiece to be subjected to a precision cutting process by a continuously rotating cutting tool relative to the cutting tool, and cuts the work into a predetermined pattern so as to form fine grooves at a predetermined pitch by a continuous cutting processes. The machine includes a main body base portion and an up-and-down moving table driven in the up-and-down direction with respect to the main body base portion.Type: GrantFiled: October 8, 1992Date of Patent: September 20, 1994Assignee: Canon Kabushiki KaishaInventors: Haruyuki Kusunoki, Kikuo Yasutome, Shigeo Yamazaki, Koji Furukawa, Takeshi Sasaki
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Patent number: 5344262Abstract: A slotting apparatus has a slotting tool for producing a slot of a substantially arcuate cross section axially in an inner circumferential surface of a tubular workpiece held in position. When the slotting tool moves in one direction axially in the tubular workpiece, it follows an arcuate path by moving progressively toward and away from the inner circumferential surface of the tubular workpiece. The slotting tool cuts off the inner circumferential surface of the tubular workpiece, forming an arcuate slot therein. When the slotting tool moves back, it is spaced from the slotted surface region of the workpiece, and travels along a straight path back to its starting position. The slotting tool is supported on a tool support angularly movably supported by first and second link arms in a casing.Type: GrantFiled: February 28, 1992Date of Patent: September 6, 1994Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Tadatomo Hatayama, Tatsuya Takeuchi
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Patent number: 5307718Abstract: An apparatus and process are disclosed for removal of a stripe of soft reflective material of uniform width from the surface of a mirror by using a blade having a large included angle to inhibit curling of the blade during the cutting operation which could result in damage to the glass substrate of the mirror. The cutting blade is maintained at a low blade angle with respect to the mirror surface to produce minimal chipping along the cut edge and to minimize the force exerted on the coating normal to the glass surface which could deform the flat mirror. The mirror is mounted in a cutting mechanism containing a movable carriage on which the blade is mounted to provide very accurate straightness of the travel of the blade along the mirror.Type: GrantFiled: October 29, 1992Date of Patent: May 3, 1994Assignee: The United States of America as represented by the United States Department of EnergyInventors: Stephen J. Perry, Lloyd L. Steinmetz
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Patent number: 5275075Abstract: An apparatus and method for forming a fold construction in a triple wall corrugated paper board comprises a pair of spaced apart main frame plates having four support plates connected therebetween in a direction which is transverse to a feed direction for the paper board. A pair of shaft carrier plates which have linear bearings thereon, are mounted for sliding movement to the support shafts between the frame plates. Spreader tubes are engaged around the support shafts for maintaining a selected and accurate distance between the carrier plates. Upper and lower shafts are rotatably mounted between the carrier plates and carry knives, scoring members or other fold forming elements for scoring or cutting the paper board to form segments of the fold construction. A table is fixed between the carrier plates that cooperates with a hold down roller which is rotatably mounted between the plates, to hold the paper board down and prevent curling or warping as the fold construction is formed.Type: GrantFiled: September 18, 1992Date of Patent: January 4, 1994Assignee: Weyerhaeuser CompanyInventors: Roderick G. Keech, John W. Flynn
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Patent number: 5266148Abstract: An improved triple wall corrugated paper board fold construction is formed by joining a single face web with a nonadhered band of the medium to a contiguous liner of another one of the single face webs, slitting and removing a portion of the nonadhered band along a narrow bending area, and removing the slit strip to leave a bending groove formed with one or more score lines in the material underlying the groove, as the board continuously moves along a path of travel.Type: GrantFiled: February 7, 1990Date of Patent: November 30, 1993Assignee: Weyerhaeuser CompanyInventors: Roderick G. Keech, James F. Smith, John W. Flynn