Active Means To Control Depth Of Score Patents (Class 83/881)
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Patent number: 6536121Abstract: A scribing apparatus which forms a scribe line on a work 100 comprises a scribe body 10 having a cutter 13 put on the work 100 and a vibration generation member 14 which vibrates the cutter 13 in a direction perpendicular to the work 100 periodically, a support device having a support body 20 for supporting the scribe body 10 to be movable, and magnetic force applying means 40 for holding the scribe body 10 at a standard height in the direction by using magnetic force. The magnetic force applying means 40 includes a pair of magnets 41a, 41b and a pair of magnets 42a, 42b repulsing each other in a direction parallel to a direction in which the vibration generation member 14 vibrates. And magnetically repelling force applied to the scribe body 10 by said first pair of magnets 41a, 41b and magnetically repelling force applied to the scribe body 10 by said second pair of magnets 42a, 42b oppose to each other.Type: GrantFiled: August 2, 2000Date of Patent: March 25, 2003Assignees: THK Co., Ltd., Beldex CorporationInventors: Hirokazu Ishikawa, Gyo Shimotoyodome
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Patent number: 6521153Abstract: The present invention relates generally to a new apparatus and method for in-situ green sheet slitting. More particularly, the invention encompasses an apparatus and method that uses a modified green sheet slitting machine so that it can provide an in-situ slitting of green sheets that result in a plurality of separate green sheets rolls or strips.Type: GrantFiled: September 12, 1997Date of Patent: February 18, 2003Assignee: International Business Machines CorporationInventors: Lorenzo Scalia, Barry Donald Sewing
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Patent number: 6503639Abstract: A press-formed product which is characterized by having a large number of linear concave portions 11 in the region (such as the side wall 31 of the press-formed product 30) which has undergone bending or bending-unbending deformation during press-forming, said linear concave portions satisfying the following requirements. D/P≦0.03×t/1.2 and 0.02t<D≦0.5t where, P (mm) is an interval between the linear concave portions 11, D (mm) is a depth of the linear concave portions, and t (mm) is a wall thickness of the press-formed product. A method of producing a press-formed product, said method being characterized by using a die having linear projections on its forming surface in such a way that the edges of said linear projections cut into the blank in the region which has undergone bending or bending-unbending deformation during press-forming, thereby correcting warpage at the same time of press-forming.Type: GrantFiled: March 21, 2001Date of Patent: January 7, 2003Assignee: Kobe Steel, Ltd.Inventors: Jiro Iwaya, Koichi Kani, Toshiaki Funabiki
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Patent number: 6494122Abstract: Alignment method and apparatus for aligning a cutting blade with a selected street on a semiconductor wafer. It has square chip areas defined by crossing streets and alignment spots formed on its surface. Two street lines with at least one street intervening therebetween are selected, and linear functions ƒ(x) and g(x) are determined on the basis of the coordinates of their alignment spots according to the least squares method. The linear functions ƒ(x) and g(x) run among the alignment spots at the closest distances thereto to represent the two selected streets. Another linear functions ƒ′(x) and g′(x) are determined by putting the linear functions f(x) and g(x) into parallelism with the X-axis.Type: GrantFiled: July 5, 2001Date of Patent: December 17, 2002Assignee: Disco CorporationInventor: Masakado Kamigaki
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Patent number: 6460258Abstract: A scribe body (A) includes an abutment member (30) and a vibration generating member (40) for applying vibrations to the abutment member (30). The scribe body (A) is connected to a support portion (6) of a slide mechanism (3) through a vibration damping member (7). Two pairs of vibration damping members (7) are vertically spacedly arranged. The vibration damping members (7) of each pair are arranged on the left and right sides of the scribe body (A). By relatively moving the abutment member (30), which is pressed against a surface of a workpiece by its own weight of the scribe body (A), along the surface of the workpiece while applying vibration, which are generated by the vibration generating member (40), to the abutment member (30), a scribe line is formed in the surface of the workpiece. Vibration of the scribe (A) is damped by the vibration damping member (7).Type: GrantFiled: August 28, 2000Date of Patent: October 8, 2002Assignees: Beldex Corporation, THK Co., Ltd.Inventor: Gyo Shimotoyodome
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Publication number: 20020043145Abstract: Tile cutting device comprises a height-positionable frame positioned transversely above the translating support surface on which at least one tile to be sectioned is positioned, there being associated with said frame at least one cutting implement provided with at least one cutting blade (or wheel) rotated by a suitable motor; said cutting implement can be translationally moved horizontally relative to said frame by suitable positioning means, in order to be located in the desired position for cutting said tile.Type: ApplicationFiled: October 17, 2001Publication date: April 18, 2002Applicant: SACMI-COOPERATIVA MECCANICI IMOLA-SOC. COOP. A.R.L.Inventor: Claudio Ricci
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Publication number: 20020043144Abstract: A device and a method for forming a weakening area in an airbag cover having a support layer and a decorative layer over the support layer include a cutting support and a cutter. The support supports the airbag cover with the decorative layer side facing down and the cutter is displaceably positionable over the support. A tear line of a predetermined pattern is formed through the support layer and into the decorative layer with the cutter while controlling the depth of cut relative to the support to precisely control the residual thickness of the tear line and to prevent the cutter from penetrating through the decorative layer. The controller controllably displaces the cutter for precise controlled cut.Type: ApplicationFiled: September 4, 2001Publication date: April 18, 2002Inventors: Stefan Reh, Konrad Sauer, Peter Roos
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Patent number: 6341548Abstract: A cutter shaft 40 provided with a cutter 43 as its lower tip is freely vertically movably disposed in a guide cylinder portion 17a of a cutter holder 17. A horizontal support body 47 is supported in a hollow case portion 17b. A large diameter first steel ball 45 and a small diameter second steel ball 46 are supported in the horizontal support body 47 separated by a suitable distance. The horizontal support body 47 supports the steel balls 45, 46 exposed from a lower end of the horizontal support body 47 but in a manner that prevents the steel balls 45, 46 from falling out of the horizontal support body 47. A cover body 48 is fixed on the upper surface of the horizontal support body 47 to prevent the first and second steel balls 45, 46 from moving in a vertical direction. The side edges of the horizontal support body 47 protrude from guide grooves 50a, 50b formed inside surfaces of the hollow case portion 17b. An adjustment screw screwingly engaged in a lid portion 17c presses downward on the cover body 48.Type: GrantFiled: April 16, 1999Date of Patent: January 29, 2002Assignee: Brother Kogyo Kabushiki KaishaInventors: Shinichi Hirahata, Yasuhiro Ogawa, Tadanobu Chikamoto, Kazuyoshi Minaminaka
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Publication number: 20010035083Abstract: A unidirectional and bidirectional optical fiber couplers using polymer optical fibers having mirrors formed within the polymer optical fibers for reflecting optical signals. The mirrors comprise a notch having at least one surface angled with respect to the central axis of the optical fiber for reflecting the optical signal perpendicular to its central axis. A unidirectional embodiment allows input optical signals to be coupled from any combination of input optical fibers and transmitted into any combination of output optical fibers. A bidirectional embodiment allows optical signals from tapping fibers to be reflected in opposite directions along a first, or BUS optical fiber. Another aspect of the present invention is an apparatus and method for controlling the depth of the notch by monitoring residue power through the optical fibers while the notch is being cut.Type: ApplicationFiled: May 14, 2001Publication date: November 1, 2001Applicant: NEC RESEARCH INSTITUTE, INC.Inventors: Kenneth W. Fasanella, Yao Li, Ting Wang
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Patent number: 6173649Abstract: A sheet-like printing medium with easy-separating means which enables one to easily separate the printing medium into separate portions. When an image is formed on the printing medium having easy-separating means disposed inside and entirely along the peripheral edge thereof, a print area is extended slightly to the peripheral edge beyond the easy-separating means. When the width of a non-print area left in the peripheral edge of the printing area is separated at a part of the easy-separating means, an image is formed spaced from the sides of each of the non-print areas by a predetermined distance.Type: GrantFiled: October 7, 1997Date of Patent: January 16, 2001Assignee: Seiko Epson CorporationInventor: Hiroyuki Onishi
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Patent number: 6152003Abstract: There is described a cutting device for fabric and similar material which comprises a cutting table on the surface of which a material support is mounted; a cutting tool which is moveable over the table to penetrate and cut material lying on the support; and a control arrangement which measures the distance to the table surface under the support and thereby controls the depth of cutting tool penetration so that it extends a predetermined distance into the support, independently of applied pressure on the cutting tool.Type: GrantFiled: November 6, 1997Date of Patent: November 28, 2000Assignee: Bullmer Spezialmaschinen GmbHInventor: Rolf Jung
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Patent number: 6136209Abstract: A first method of constructing a die sheet includes covering a die surface with a first, spaced pattern of a first photo-resist material and then covering the first pattern with a second, continuous pattern of a second photo-resist material. A chemical removes material from sections not covered by the second pattern and the second pattern is then removed. A chemical removes material from die surface sections not covered by the first pattern. A second method of constructing a die sheet includes covering sections of a die surface with a pattern of photo-resist material having alternating slitting segments and wider perforating segments. A chemical removes material from uncovered sections and completely undercuts the slitting segments to form slitting sections and undercuts the perforating segments to form higher extending perforating sections.Type: GrantFiled: May 23, 1997Date of Patent: October 24, 2000Assignee: Xynatech, Inc.Inventor: Pierson S. Kang
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Patent number: 6113294Abstract: A head 18 and a cutting unit 23 are provided. The head 18 prints on a print layer of a laminated tape formed by laminating the print layer to a separation layer. The cutting unit 23 cuts the print tape transported from the head 18. A partial cutting unit B for cutting only the print layer and a full cutting unit A for completely cutting the tape are provided. A repetition print control means 47 and a first control means 48 are provided. The repetition print control means 47 controls the head 18 to print the same print content repeatedly for a plurality of times following the lengthwise direction of the print layer while sandwiching the print content between a non-printed areas having a predetermined width. The first control means 48 operates the partial cutting unit B to cut only the print layer in the non-printed areas formed before each print portion by the repetition print control means 47.Type: GrantFiled: March 30, 1999Date of Patent: September 5, 2000Assignee: Brother Kogyo Kabushiki KaishaInventor: Akihiko Niwa
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Patent number: 6105483Abstract: A cutting apparatus presses a wheel cutter against a ceramic plate for cutting it along a cutting line, and a controlling unit determines the total cutting length so as to increase the pressure against the ceramic plate together with the total cutting length, thereby keeping the depth of cutting trail constant.Type: GrantFiled: November 9, 1998Date of Patent: August 22, 2000Assignee: Yamaha CorporationInventor: Koshiro Takeda
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Patent number: 5937725Abstract: A laminated sheet cutting method and apparatus for making consistent cuts partially through a laminated sheet without requiring high precision control of the cutter cutting depth are provided. The method for cutting partially through an adhesive tape comprising a base tape and a backing paper cuts only the base tape of the adhesive tape to a particular planar shape without cutting the backing paper. The adhesive tape is placed on a flexible member with the backing paper of the adhesive tape in contact with flexible member. The adhesive tape is held immobile on flexible member. The cutter having a beveled cutting edge is then pressed into the flexible member with the leading edge of the cutting edge descending to a specific cutting depth. The cutter is moved relative to the adhesive tape to cut only the base tape.Type: GrantFiled: December 27, 1995Date of Patent: August 17, 1999Assignees: Seiko Epson Corporation, King Jim Co., Ltd.Inventors: Noriyuki Kamijo, Kenji Watanabe, Takanobu Kameda, Chieko Aida, Tomoyuki Shimmura
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Patent number: 5860348Abstract: A method of dividing deep-frozen food blocks comprising forming a succession of spaced parallel blade rows each row having a plurality of spaced parallel coaxial freely rotatable discoid blades and advancing successive food blocks past the successive blade rows so that the blades in the successive blade rows rotate with a peripheral speed which more or less matches the speed of the block advance so that there is minimal relative linear motion of the blade edges and the blocks whereby the blades groove the blocks by displacing block material to the sides of the grooves and selecting a number of blade rows such that while the grooves made by any blade row are quite shallow, the grooves made by all of the blade rows divide each of the blocks into a plurality of parts. Apparatus for practicing the method is also disclosed.Type: GrantFiled: March 12, 1997Date of Patent: January 19, 1999Assignee: Pearce Processing Systems, Inc.Inventors: Charles H. Morse, Robert R. Harrison
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Patent number: 5860349Abstract: A cutting apparatus presses a wheel cutter against a ceramic plate for cutting it along a cutting line, and a controlling unit determines the total cutting length so as to increase the pressure against the ceramic plate together with the total cutting length, thereby keeping the depth of cutting trail constant.Type: GrantFiled: June 19, 1997Date of Patent: January 19, 1999Assignee: Yamaha CorporationInventor: Koshiro Takeda
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Patent number: 5740717Abstract: In contrast to typical machines though, the present invention discloses a device which allows the plate to "float" within the mechanism, so that any inaccuracies in dimensional tolerances between plate and knife are absorbed in a damping of the plate or bed of the mechanism. In this situation, the depth of the cut of the score line can be very reliably controlled, which results in the repeatable manufacturing of a child resistant, yet senior effective package. There is used a spring pre-load for this plate, which is such that cutting takes place yet, as the tool closes, the plate and package come in "metal to metal" contact, assuring "near perfect" cuts of the blister package. Extremely high tolerances are maintained, assuring packages which pass all levels and types of QA testing.Type: GrantFiled: December 19, 1996Date of Patent: April 21, 1998Assignee: McNeil-PPC, Inc.Inventors: Harry Sowden, Kenneth E. Fuller
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Patent number: 5634388Abstract: Marks such as patterns, designs, numbers, or the like are cut out of a mark sheet or mark sheets placed on a glass base by a thermal cutter having a heated cutting bit. The thermal cutter is movable two-dimensionally over the mark sheet, and is also vertically movable between an upper position in which the thermal cutter is lifted off the mark sheet supported on the base and a lower position in which the thermal cutter is lowered in contact with the mark sheet supported on the base. The thermal cutter is angularly movably supported on an eccentric shaft that is rotatable by a stepping motor. The thermal cutter has a cutting bit resiliently urged by a spring for stable positioning. A range or ranges in which desired marks are to be cut out of a mark sheet or mark sheets can be confirmed by being traced by the thermal cutter before the marks are actually cut out. When mark numerals indicative of desired numbers are to be cut out, such mark numerals are rearranged and displayed for the operator's information.Type: GrantFiled: June 7, 1995Date of Patent: June 3, 1997Assignee: Kabushiki Kaisha Tokyo HoraishaInventors: Shinichi Fuchigami, Shingi Suzuki, Takeshi Kongo, Tetsuo Nakada, Takehiro Kodama, Sachie Sato
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Patent number: 5605087Abstract: A tape cutting apparatus which provides for cutting a multi-layered tape through only one layer of the tape. The apparatus includes a cutting device with a cutting blade wherein the cutting device is actuated by a drive mechanism and the position of the cutting device is controlled by a position controller. The apparatus further provides a braking mechanism to ensure that the cut is terminated at the proper position.Type: GrantFiled: January 10, 1994Date of Patent: February 25, 1997Assignee: Esselte N.V.Inventor: Michael A. Beadman
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Patent number: 5538056Abstract: High powered lasers are used to score the bark on logs before they are mechanically debarked. Typical of the lasers employed are multi-kilowatt CO.sub.2 industrial lasers. A high powered laser beam is brought to a focus just above the surface of the bark on the log. A jet of compressed air is blown coaxially with the beam and facilitates the beam's formation of a narrow slot in the surface of the bark. Logs are advanced and rotated by a plurality of parallel augers extending across the base of a trough. The lasers are positioned in a gap beneath and in between sets of augers. The beam's focus may be adjustable with respect to the bark's surface.Type: GrantFiled: December 16, 1994Date of Patent: July 23, 1996Assignee: Beloit Technologies, Inc.Inventor: Eduard J. Thoma
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Patent number: 5533889Abstract: The present invention relates generally to a new apparatus and method for in-situ green sheet slitting. More particularly, the invention encompasses an apparatus and method that uses a modified green sheet slitting machine so that it can provide an in-situ slitting of green sheets that result in a plurality of separate green sheets rolls or strips.Type: GrantFiled: June 5, 1995Date of Patent: July 9, 1996Assignee: International Business Machines CorporationInventors: Lorenzo Scalia, Barry D. Sewing
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Patent number: 5518570Abstract: There is disclosed an apparatus and method for bonding a sheet material to an elongated base material, in which the sheet material is transferred by a transferring device towards the base material, and the sheet material is bonded by a bonding device to the base material. A static electricity generating device is attached to the bonding device for generating static electricity on the sheet material to cause the sheet material to adhere to the bonding device, so that the sheet material is prevented from falling from the bonding device prior to the bonding step. Furthermore, an apparatus and method for manufacturing a flexible flat cable, applying the above bonding apparatus and method is also disclosed. In this apparatus and method, a pair of insulating tape sheets are transferred towards electric conductors.Type: GrantFiled: July 22, 1994Date of Patent: May 21, 1996Assignee: Fujikura Ltd.Inventors: Masazumi Takagi, Toshio Onuma, Tatsuya Watanabe, Toshiaki Enami, Kazuo Tanihira, Hirotaka Sawada, Kuni Yoshinuma, Hiroaki Komatsuda
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Patent number: 5515758Abstract: In a process for cutting the cover foil of a laminated foil material, the sound field scanned by the cutting contact of the cutting edge is evaluated for controlling the depth of penetration of the cutting edge maximally up to the plane separating the cover foil from the carrier foil of the foil material.Type: GrantFiled: April 28, 1994Date of Patent: May 14, 1996Inventor: Peter Bechmann
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Patent number: 5512808Abstract: An instrument for forming nanometric features on surfaces of materials having a motor driven support for moving a workpiece on an X-Y-Z axis, a scribing tool of nanometric proportion engagable with the workpiece and a laser system for sensing movement. The tool is mounted on piezoelectric actuating means and the entire system is under the control of a programmed computer processing unit.Type: GrantFiled: April 7, 1994Date of Patent: April 30, 1996Assignee: Massachusetts Institute of TechnologyInventors: Harry R. Clark, Jr., Gerald W. Iseler, Brian S. Ahern
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Patent number: 5505552Abstract: A cutter device includes, in addition to one solenoid 17, two pairs of assemblies disposed in parallel with each other in a direction of movement of a cutter 2, the first pair having a rack 5, a pinion 10, and a clutch 49 to control rotation of the pinion, and the second pair having another rack 6, another pinion 11, and another clutch 50 to control rotation of the pinion. In partial-cutting operation, the cutter 2 is moved by engaging the rack 5 in the first pair with the pinion 10 in the first pair rotated through power from the clutch 49 in the first pair. In full-cutting operation, the cutter 2 is moved by engaging the pinions 10,11 in the first and second pairs concurrently rotated through power from the clutches 49,50 in the first and second pairs with the racks 5,6 in the first and second pairs. The pinion 10 in the first pair causes the full-cutting first half movement of the cutter, and the pinion 11 in the second pair causes the full-cutting latter half movement thereof.Type: GrantFiled: December 28, 1994Date of Patent: April 9, 1996Assignee: Citizen Watch Co., Ltd.Inventors: Kazumi Hasegawa, Makoto Kawasaki
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Patent number: 5454287Abstract: Marks such as patterns, designs, numbers, or the like are cut out of a mark sheet or mark sheets placed on a glass base by a thermal cutter having a heated cutting bit. The thermal cutter is movable two-dimensionally over the mark sheet, and is also vertically movable between an upper position in which the thermal cutter is lifted off the mark sheet supported on the base and a lower position in which the thermal cutter is lowered in contact with the mark sheet supported on the base. The thermal cutter is angularly movably supported on an eccentric shaft that is rotatable by a stepping motor. The thermal cutter has a cutting bit resiliently urged by a spring for stable positioning. A range or ranges in which desired marks are to be cut out of a mark sheet or mark sheets can be confirmed by being traced by the thermal cutter before the marks are actually cut out. When mark numerals indicative of desired numbers are to be cut out, such mark numerals are rearranged and displayed for the operator's information.Type: GrantFiled: March 29, 1994Date of Patent: October 3, 1995Inventors: Shinichi Fuchigami, Shingi Suzuki, Takeshi Kongo, Tetsuo Nakada, Takehiro Kodama, Sachia Sato
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Patent number: 5387298Abstract: There is disclosed an apparatus and method for bonding a sheet material to an elongated base material, in which the sheet material is transferred by a transferring device towards the base material, and the sheet material is bonded by a bonding device to the base material. A static electricity generating device is attached to the bonding device for generating static electricity on the sheet material to cause the sheet material to adhere to the bonding device, so that the sheet material is prevented from falling from the bonding device prior to the bonding step. Furthermore, an apparatus and method for manufacturing a flexible flat cable, applying the above bonding apparatus and method is also disclosed. In this apparatus and method, a pair of insulating tape sheets are transferred towards electric conductors.Type: GrantFiled: April 22, 1993Date of Patent: February 7, 1995Assignee: Fujikura Ltd.Inventors: Masazumi Takagi, Toshio Onuma, Tatsuya Watanabe, Toshiaki Enami, Kazuo Tanihira, Hirotaka Sawada, Kuni Yoshinuma, Hiroaki Komatsuda
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Patent number: 5381713Abstract: A glass scoring machine includes a table and a numerically controlled carriage for movement over the table along X and Y axes. The glass scoring wheel is held against the sheet of glass by a pneumatic cylinder and a compression spring. In one embodiment, an adjustable stop is provided to establish the desired force applied to the glass by the scoring wheel depending on the thickness of the glass to be cut. In an alternate embodiment, the pneumatic cylinder is provided with a variable pressure regulator to establish the desired force at the scoring wheel.Type: GrantFiled: November 8, 1993Date of Patent: January 17, 1995Assignee: The Lockformer CompanyInventor: Quinn C. Smith
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Patent number: 5327625Abstract: An instrument for forming nanometric features on surfaces of materials having a motor driven support for moving a workpiece on an X-Y-Z axis, a scribing tool of nanometric proportion engagable with the workpiece and a laser system for sensing movement. The tool is mounted on piezoelectric actuating means and the entire system is under the control of a programmed computer processing unit.Type: GrantFiled: August 13, 1992Date of Patent: July 12, 1994Assignees: Massachusetts Institute of Technology, United States of AmericaInventors: Harry R. Clark, Jr., Gerald W. Iseler, Brian S. Ahern
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Patent number: 5277047Abstract: The residual of an easy open can end is controlled by a band heater mounted on the anvil in conversion system tooling. The separation at closest approach of the score and anvil in the conversion tooling is altered as necessary by thermal expansion and contraction of the anvil as determined by the power supplied to the band heater. An electrical circuit supplies power to the heater and includes a thermocouple for maintaining the anvil at a set temperature. A loop control periodically diverts a finished end from the conveyor, measures the residual and adjusts power to the heater if necessary to bring the residual into specification.Type: GrantFiled: September 2, 1992Date of Patent: January 11, 1994Assignee: Service Tool International, Inc.Inventor: Frank J. Herdzina
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Patent number: 5271789Abstract: A tape end processing unit has a guide path for guiding a tape piece from an insertion port into which the tape piece is inserted to a cutting blade to cut off the tape piece. The guide path is bent in a convex form in a direction in which the cutting blade moves when the tape piece is cut. With this configuration, the curl of the tape piece can be cured, and an end of the tape piece can be cut off with an accurate length. The tape end processing unit may have a blade receiving stand which has a concave section having a width narrower than the length of the cutting blade and a depth smaller than the thickness of a releasable paper constituting a part of the tape piece. With this configuration, the tape end processing unit can cut off an end of the tape piece in a state where the releasable paper can easily be separated.Type: GrantFiled: September 11, 1991Date of Patent: December 21, 1993Assignee: Brother Kogyo Kabushiki KaishaInventors: Yukihito Takagi, Shigeru Nakata, Teruo Imamaki, Mikio Sakuma
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Patent number: 5231921Abstract: An apparatus peels fruit, in particular citrus fruit, by washing and sterilizing the fruit in a sterilizing bath. The washed and sterilized fruit is delivered to a perforator which makes a plurality of perforations through the outer surface of the peel of the fruit over its entire surface. The perforated fruit is then delivered to a conveyor which loads and orients the fruit so that it is spinning on the stem axis with the equator of the spinning fruit exposed to a plurality of slitting knives. The knives slit an equatorial cut through the outer surface of the peel. The slit and perforated fruit is then delivered to a carousel of canisters. Each canister is filled with fruit and an aqueous solution of a commercial pectinase. The solution is vacuum infused into the fruit so that the albedo attaching the peel to the fruit substantially disintegrates over a predetermined time period.Type: GrantFiled: August 26, 1992Date of Patent: August 3, 1993Assignee: Sunkist Growers, Inc.Inventor: William Kirk
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Patent number: 5220858Abstract: Apparatus and method for cutting partially through the layers of a laminate. The invention uses a roller having a resilient surface of specified hardness over which are stretched a number of wires extending helically about its circumference, so that the wires are supported on the tool surface by the resilient layer. A cooperating hard surfaced roller applies a controlled amount of pressure to the sheet material in a nip formed with the scoring roller. This arrangement provides highly even score lines.Type: GrantFiled: October 9, 1992Date of Patent: June 22, 1993Assignee: Samuel Jones & Co. LimitedInventors: Roger A. Allen, John Mariner
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Patent number: 5160340Abstract: Method and apparatus for skullcap and other bone cutting during autopsy. A power driven rotary cutter in the form of a circular blade saw is mounted on a carrier which moves around the skull of the cadaver and permits the cutter to move radially, toward and away from the axis of the skull. A follower which engages the skull controls the depth of cut so that only the skull bone is cut without damage to the brain tissue in the skull. The cutter is driven by a cable from a remote motor to minimize the weight of the cutter assembly on the carrier. The casing in which the cutter is mounted can be a handpiece of a cable driven tool. The cutter can also be used manually by removing the handpiece from the carrier. Power to the cutter is controlled so that the cutter cuts only bone and stops when soft tissue is engaged by the cutter, which avoids serious damage to soft tissue, and also avoids serious injury to the user if the blade slips.Type: GrantFiled: December 14, 1990Date of Patent: November 3, 1992Inventors: James A. Gary, Samuel Merrill, Jr.
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Patent number: 5160573Abstract: According to the present invention, a tape cutter device for cutting a tape which comprises a tape substrate coated with an adhesive layer and a separable sheet laid on the adhesive layer comprises: means for receiving the tape; and a cutter blade for cutting the tape received on the tape receiving means to thereby divide the tape into two sections such that at least the adhesive layers of the two sections being separated from each other; wherein, in each section of the tape, an adhesive force of the adhesive layer relative to the separable sheet is greater than an adhesive force of the adhesive layer relative to the cutter blade.Type: GrantFiled: March 22, 1991Date of Patent: November 3, 1992Assignee: Brother Kogyo Kabushiki KaishaInventors: Yukihito Takagi, Teruo Imamaki, Shigeru Nakata, Mikio Sakuma
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Patent number: 5136910Abstract: Flat multi-layered work pieces, such as panels with a decorative or finish surface coating (5), are prescored and cut through by the same saw blade to avoid damage to the surface coating. For this purpose a circular saw (1) is guided along a guide rail (7) and its saw blade (4) is adjustable to a prescoring depth and to at least one lateral prescoring position to make a first prescoring cut only through the cover layer (5) in a sawing direction in synchronism with the blade rotation direction. If necessary, the blade is adjusted to a second lateral prescoring position to make a second prescoring cut only through the cover layer (5) in a cutting direction in synchronism with the blade rotation. Finally, the saw blade (4) is adjusted to its full cutting depth and to a lateral position between the two prescoring positions and a full cut is made through the entire work piece (6) in a sawing direction counter to the rotation direction of the saw blade.Type: GrantFiled: January 15, 1991Date of Patent: August 11, 1992Assignee: Karl M. Reich Maschinenfabrik GmbHInventors: Reiner Kuhn, Michael Weingart
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Patent number: 5046392Abstract: A method and apparatus for severing a length of insulating batting and simultaneously cutting only the insulating material thereof is provided. The insulating material between the severed edge of the insulation batting and the cutting line through the insulating material can be removed to expose a length of backing which can be secured to the uncut portion of the insulation batting length when the insulation batting length is wrapped around a length of a heating and cooling duct or the like. The apparatus includes a pair of rotating cutting wheels rotatably mounted on a carriage movable along an elongate carriage rail. A pinion gear mounted to each rotating cutting wheel for rotation therewith meshes with a rack secured to the elongate carriage rail to cause rotation of the rotating cutting wheel in response to movement of the carriage along the carriage rail.Type: GrantFiled: April 6, 1989Date of Patent: September 10, 1991Inventors: Richard Keon, Luther Morris
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Patent number: 5038654Abstract: The load applied to a scoring wheel to the combined load of a first predetermined constant load and a second variable load. The second load is varied in response to changes in the scoring speed to provide a uniform scoring depth.Type: GrantFiled: April 4, 1989Date of Patent: August 13, 1991Assignee: PPG Industries, Inc.Inventor: Donald A. Mackey
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Patent number: 5005318Abstract: Apparatus for cutting glass blanks according to a particular contour, comprises a scoring maching for scoring the contour on the glass blank, a breaking machine for severing the scored contour from the glass blank, and a grinding machine for smoothing the edges of the severed blank. A conveyor conveys the glass blank to each of the above machines for performing their respective operations, and a computerized control system controls the three machines according to digital files prepared for each machine.Type: GrantFiled: June 30, 1988Date of Patent: April 9, 1991Assignee: O/Y Kyro A/B, Tamglass Corp.Inventor: Aaron Shafir
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Patent number: 4921563Abstract: A method is disclosed for making plastic products that enables adjacent portions thereof to be easily folded into juxtaposed relationship. A hinge is formed by utilizing an angled or curved cutting tool to create a continuous slit which in a preferred configuration (when viewed in profile) is generally L-shaped so that it extends from one surface of the product to a first location that is within the products' body and then extends therein from the first location to a second location also within the thickness of the body. The slit opens onto the one surface and thereby forms a flexible bridge integral with those portions of the product adjacent thereto, the bridge permitting such adjacent portions to be flexibly folded into juxtaposed relationship.Type: GrantFiled: July 19, 1988Date of Patent: May 1, 1990Assignee: Edward S. Robbins, IIIInventors: Gary T. Schwertner, Edward S. Robbins, III
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Patent number: 4920495Abstract: In a sheet cutting machine in which a guidance system moves a blade across a work surface, the blade height is adjusted in accordance with stored data of irregularities of the guidance system and work surface relative to each other. The machine is also operable in a mapping mode in which the blade is replaced by a sensor which is scanned over the work surface, and the sensor output data is stored in the memory.Type: GrantFiled: July 15, 1988Date of Patent: April 24, 1990Assignee: GFM Holdings AGInventor: Donald J. Pilkington
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Patent number: 4905558Abstract: The invention relates to apparatus for cutting a series of spaced-apart continuous linear slits in a sheet of flexible plastics material, for example in the manufacture of an ajustable width blind. In one embodiment the apparatus includes a feed roller for feeding sheeting to be slit to a support means, a plurality of slitting blades movable in a direction transverse to the direction of travel of the sheeting and means for controlling the blades so that they cut to a depth less than the thickness of the material. In a second embodiment the blades are stationary and are adapted to cut in the direction of travel of the material. The blades may be mounted on leaf springs biased towards the material to be cut, means being provided for controlling the biasing force. Alternatively, a stop may be provided to control the depth of cut of the blades.Type: GrantFiled: June 29, 1984Date of Patent: March 6, 1990Inventor: Sean Corcoran
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Patent number: 4854205Abstract: A cutting device comprising a support roller (8) freely rotatable in both directions to absorb the pressure of cutting, and a carrier (9) movable in the direction of the longitudinal axis of the support roller (8) on which is fastened a cutting tool (26,27) which can be brought into contact with the roll of material to be cut and present on the support roller (8). The improvement comprises lowering of the cutting tool (26,27) into an operating position, and raising from the operating position, by turning of an eccentric element (14,34) coupled with a pivotable arm (17) holding the cutting tool (26,27). The cutting tool (26,27) is suspended on the arm (17) and thereby limited in regard to its raising and lowering movement. A leaf spring (21) fixed on the arm (17) is braced on the upper end (28) of the cutting tool (26,27) to exert a penetrating force on the cutting tool (26,27) when the arm (17)is lowered.Type: GrantFiled: May 10, 1988Date of Patent: August 8, 1989Assignee: Rotring-werke Riepe KGInventor: Gerold Anderka
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Patent number: 4829868Abstract: In a movable sawing unit for severing planar workpiece panels, which has a severing blade and a prescoring saw blade for cutting a prescore groove to prevent splintering of panels by the severing blade, a device for adjusting the depth of penetration of the prescoring saw blade. The prescoring saw blade is operably positioned in advance of the severing blade, upon a vertically movable support. A tactile element associated with the vertically movable support moves along a directing surface extending along the direction of advance of the workpiece panel, causing the prescoring saw blade to occupy a plurality of cutting positions.Type: GrantFiled: May 13, 1988Date of Patent: May 16, 1989Inventor: Erwin Jenkner
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Patent number: 4805312Abstract: In an engraving head for apparatus for engraving printing cylinders, a drivable engraving tool and a sensing organ contacting any printing cylinder being engraved by the drivable engraving tool are mounted on a common fixture. A damping element is located between the sensing organ and the engraving tool for at least substantially barring transmission of oscillations from the sensing organ to the engraving stylus, while preserving a firm and accurate guidance of the drivable engraving tool by the sensing organ contacting the printing cylinder. Damped sleeve structures and collets for mounting a sensing stylus include such damping elements.Type: GrantFiled: June 5, 1987Date of Patent: February 21, 1989Assignee: MDC Max Datwyler Bleienbach AGInventor: Max Datwyler
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Patent number: 4732069Abstract: A knife and knife holder assembly for use with a sheet material cutting machine includes a replaceable knife with a lower most tip point and a guard and clamp member having a shoe surface engagable with the material being cut to limit the knife's penetration. An adjustment means and a connecting means associated with the guard and clamp member and with the holder allow for quick and easy adjustment of the vertical position of the member on the holder to vary the amount by which the knife protrudes beyond the shoe surface, thereby adjusting its penetration, and also allows quick and easy movement of the member between tightened and loosened conditions relative to the holder, the knife being removable from and replacable in the holder and the member being vertically adjustable in its loosened condition, and the guard and clamp member in the tightened condition of the connecting means being itself fixed to the holder and also holding the knife clamped in a fixed position to the holder.Type: GrantFiled: May 8, 1987Date of Patent: March 22, 1988Assignee: Gerber Scientific Products, Inc.Inventors: Kenneth O. Wood, William A. Loos
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Patent number: 4711147Abstract: A device for scoring workpieces, in particular, laminated panels, which are to be split up subsequently by a circular saw along the scored track, comprises a scoring head arranged in the direction of operation forwardly of the circular saw, and two scoring knives held stationarily on the scoring head and penetrating the workpiece surface, with their mutual spacing corresponding to the cutting width of the saw blade.Type: GrantFiled: December 26, 1985Date of Patent: December 8, 1987Assignee: Reich Spezialmaschinen GmbHInventors: Alfred Dettelbach, Werner Binder
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Patent number: 4698052Abstract: There is provided an apparatus for applying constant pressure to a plurality of anvil rollers for crush-scoring used in combination with crush-scoring cylinders having protrusions extending from the surface thereof. Each anvil roller is supported in a substantially frictionless manner and the constant pressure is supplied by a flexible diaphragm acting on a plunger which can move substantially without friction in a pneumatic cylinder.Type: GrantFiled: December 4, 1985Date of Patent: October 6, 1987Assignee: Avery International CorporationInventor: Yefim Slobodkin
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Patent number: RE32986Abstract: A device for scoring workpieces, in particular, laminated panels, which are to be split up subsequently by a circular saw along the scored track, comprises a scoring head arranged in the direction of operation forwardly of the circular saw, and two scoring knives held stationarily on the scoring head and penetrating the workpiece surface, with their mutual spacing corresponding to the cutting width of the saw blade.Type: GrantFiled: May 26, 1988Date of Patent: July 18, 1989Assignee: Reich Spezialmaschinen GmbHInventors: Alfred Dettelbach, Werner Binder