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Severing By Tearing Or Breaking > Methods > With Preliminary Weakening

With Preliminary Weakening

With Preliminary Weakening patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

04/03/14 - 20140091125 - Rod-shortening tool
A tool for shortening an implant rod has a base housing part and a movable housing part shiftable toward and away from each other in a predetermined direction. At least one guide roller is provided on the movable housing part, and a cutter is provided on the base housing part....

03/27/14 - 20140084039 - Method and apparatus for separating workpieces
The invention is method and an apparatus for performing the method having the steps of providing a workpiece, cleaving the workpiece to form a first unit piece and a second unit piece having a spatial relationship with the first unit piece in which the second unit piece abuts the first...

02/27/14 - 20140054348 - Method for cutting plate-like glass, and cutting device therefor
A full body of a glass sheet (G) is cut by forming an initial crack (6a) on a preset cutting line (5) of the glass sheet (G) that is supported by a support member (2 (8)) from a back surface side of the glass sheet (G), followed by propagating the...

02/13/14 - 20140042202 - Cutting method and cutting stage of toughened glass
A cutting method and cutting stage of toughened glass with which a piece of toughened glass is divided into unit pieces of toughened glass. The cutting method cuts a piece of toughened glass which is strengthened by forming a compressive stress in the surface of a raw glass plate. The...

12/26/13 - 20130341372 - Cell cutting device and cell cutting method
A cell cutting device and a cell cutting method are disclosed. The cell cutting device includes a loading stage configured to load a display sheet including a plurality of display cells, a rotation driving unit connected to the loading stage and configured to rotate the loading stage and to separate...

11/28/13 - 20130313301 - Methods of separating strengthened glass sheets by mechanical scribing
A method of separating a strengthened glass sheet includes positioning a serrated scribing wheel at a position spaced apart from a first edge of the glass sheet and offset below a top surface of the glass sheet, where the glass sheet comprises a surface compression layer of layer depth DOL...

11/07/13 - 20130292442 - Mechanical scoring and separation of strengthened glass
A strengthened glass sheet is separated into undamaged sheet segments by mechanically scribing one or more vent lines of controlled depth into the sheet surface, the depths of the scribed lines being insufficient to effect sheet separation, and then applying a uniform bending moment across the vent lines to effect...

11/07/13 - 20130292443 - Methods for scribing and separating strengthened glass substrates
A method of forming a scribe line in a strengthened glass substrate includes providing a strengthened glass substrate having a first surface, a second surface, a first edge and a second edge. The first and second surfaces have a strengthened surface layer under a compressive stress, and a central region...

09/19/13 - 20130240591 - Method and apparatus for separating a pane of brittle material from a moving ribbon of the material
A pane is separated from a moving ribbon of brittle material by restraining the ribbon upstream of a score line prior to separating the pane. The ribbon is restrained by selectively contacting a first side and a second side of the ribbon in one of an opposite, overlapping or offset...

08/29/13 - 20130221053 - Method and apparatus for separation of strengthened glass and articles produced thereby
Methods and apparatus for separating substrates are disclosed, as are articles formed from the separated substrates. A method of separating a substrate having a main surface, a tension region within an interior thereof, and a compression region between the main surface and the tension region, includes forming a modified stress...

05/30/13 - 20130134198 - Methods and apparatus for managing stress in glass ribbons
A device for engaging and tensioning a glass ribbon includes a center frame member, and first and second outer frame members connected thereto. The first outer frame member includes a suction cup that engages an edge area of the glass ribbon and an actuator for moving the suction cup of...

05/30/13 - 20130134199 - Method and apparatus for removing peripheral portion of a glass sheet
Process for removing peripheral portions such as bead regions of a glass sheet including a step of pushing the glass sheet in the peripheral portion using a pushing mechanism such as a pushing bar, and corresponding apparatus. As a result of the use of the pushing mechanism, the engagement completion...

05/30/13 - 20130134200 - Method and apparatus for removing peripheral portion of a glass sheet
Process for removing peripheral portions such as bead regions of a glass sheet including a step of pushing the glass sheet in the peripheral portion using a pushing mechanism such as a pushing bar, and corresponding apparatus. As a result of the use of the pushing mechanism, the engagement completion...

05/30/13 - 20130134201 - Guide for guiding the cutting of a piece of plasterboard, and kit and method for the implementation thereof
The aim of the invention is to provide a solution for guiding the cutting of a piece of plasterboard, which can be rapidly implemented, and does not require any finishing step for refilling the surface of the piece of plasterboard. To this end, the invention relates to a guide element...

05/23/13 - 20130126573 - Method of material processing by laser filamentation
A method is provided for the internal processing of a transparent substrate in preparation for a cleaving step. The substrate is irradiated with a focused laser beam that is comprised of pulses having an energy and pulse duration selected to produce a filament within the substrate. The substrate is translated...

05/23/13 - 20130126574 - Carriage for cutting a sheet of gypsum board, cutting kit and method for implementing same
The invention proposes a solution for cutting a sheet of gypsum board quickly and allowing a flat cut edge to be obtained. The invention relates to a carriage comprising a chassis (101) fitted with:—means (102) for collaborating in a sliding manner with a cutting guide (200);—a handle (110) that can...

05/23/13 - 20130126575 - Blade for cutting a piece of plasterboard, method for implementing said blade, and use thereof
The invention relates to a solution for rapidly grooving a piece of plasterboard, enabling the creation of a plane cutting edge and a precise cut-out of the layer(s) of paper or cardboard. To this end, according to the invention, the cutting is carried out in three main steps by means...

05/23/13 - 20130126576 - Apparatus and method characterizing glass sheets
An apparatus and method for continuous edge separation in a continuous process for a ribbon of flexible brittle material such as a thin ribbon of glass is disclosed wherein an initial flaw or score is formed in the ribbon. The initial flaw is turned into a crack that propagates continuously...

05/16/13 - 20130119106 - Device and method for cleaving.
A device and method for cleaving a sample includes: Creating an indentation on a top surface of the sample by applying a downward force along a vertical axis, the axis arranging perpendicularly to the top surface of the sample; Providing a breaking pin and arranging the breaking pin under the...

05/09/13 - 20130112727 - Processes for recycling carpet and products of such processes
Methods for the recycling of carpet are disclosed that produce clean face fiber suitable for industrial use. The methods allow the recovery of face fiber material, for example a polyester or a polyamide, from carpets that includes a face fiber material and a backing material, and include the steps of...

05/02/13 - 20130105538 - Methods for cleaving a bonded wafer structure
Apparatus and methods for mechanically cleaving a bonded wafer structure are disclosed. The apparatus and methods involve clamps that grip the bonded wafer structure and are actuated to cause the bonded structure to cleave....

02/14/13 - 20130037592 - Method and apparatus for removing peripheral portion of a glass sheet
Process for removing peripheral portions such as bead regions of a glass sheet including a step of pushing the glass sheet in the peripheral portion using a pushing mechanism such as a pushing bar, and corresponding apparatus. As a result of the use of the pushing mechanism, the engagement completion...

01/17/13 - 20130015227 - Apparatus and process for forming granola pieces
A rotary sizing apparatus to form granola pieces includes a transfer device to move a granola slab and a diversion portion extending along a transfer axis between a receiving end and an exit end for receiving the slab from the transfer device. A rotary breaking device is disposed adjacent and...

12/20/12 - 20120318838 - Method for cutting glass sheet
Provided is a method for cutting a glass sheet whereby even a thin glass sheet having a thickness of 1 mm or less can be suitably cut. A nick (20a) is formed on a section of a planned cutting line (L) of a glass sheet (20). The glass sheet (20)...

10/25/12 - 20120267412 - Method of producing ceramic substrates
A ceramic base plate is divided into a plurality of substrate regions 2 each having corner part 8. A dividing groove 7 is formed between the substrate regions 2 adjacent with each other. The corner part 8 of each of the substrate regions 2 faces a spacing 9B communicated with...

10/25/12 - 20120267413 - Connecting rod breaking method
A notch is formed in an inner circumference of a bolt hole formed on each side of a large end of the connecting rod such that the notch extends continuously along the inner circumference. By radially propagating progress of breakage from the notch as a starting point, a connecting rod...

09/27/12 - 20120241488 - Method and apparatus for cutting a substrate
A substrate cutting apparatus for cutting a large size substrate into smaller unit substrates includes a rotating table and a push plate. The rotating table, on which the large size substrate having formed thereon a plurality of cutting lines is mountable, includes rotating shafts at locations corresponding to the cutting...

08/23/12 - 20120211537 - Process for producing web sections from a flexible web material as well as for producing packing containers
A process produces web sections from a flexible web material. The flexible web material is provided with tear-off lines at the distance of the length (L) of the web sections to be formed, which tear-off lines weaken the web material but do not bring about a complete separation of the...

08/09/12 - 20120199625 - Methods and apparatus for scribing and breaking layers with curved edges
Layers of material such as glass layers for displays may be cut using scribing and breaking techniques. Scribing-and-breaking equipment may include a scribe tip that forms a loop-shaped scribe line in the surface of a layer of material. The loop-shaped scribe line may have a rectangular shape with four straight...

06/07/12 - 20120138653 - Method for cutting liquid crystal panel
The present invention relates to a method for cutting a liquid crystal display panel. A method for cutting a liquid crystal display panel which includes an upper panel and a lower panel includes: forming scribe lines on the upper panel and the lower panel respectively along a cutting direction; and...

05/03/12 - 20120104065 - Method for cutting a continuous glass sheet during the production of flat glass
In the method for cutting a continuously moving glass sheet with an inhomogeneous thickness distribution across the glass sheet, a cutting tool is moved across it at an angle to its travel direction to form a fissure and then the glass sheet is broken along the fissure. To avoid premature...

05/03/12 - 20120104066 - Method for cutting processing target
A rear face 1b of an object to be processed 1A and a front face 10a of an object to be processed for separation 10A are bonded to each other by anode bonding, whereby a fracture 17 generated in a thickness direction of the object for separation 10A from a...

04/26/12 - 20120097726 - Method of separating a length of single-strand wire
A method of separating a length of single-strand wire at a notch location includes forming at least one notch in the length of single-strand wire at the notch location. The notch location is subjected to tensile strain until the notch location ruptures at the notch to separate the length of...

03/15/12 - 20120061440 - Method and aparatus for producing an elastically deformable glass plate
The invention relates to an apparatus and to a method for the industrial production of elastically deformable large-surface-area glass plates in high quantities, comprising the following characteristics: a) a device for feeding a glass plate (3), b) a device for providing the surface of the glass plate (3) with initial...

03/01/12 - 20120048905 - Apparatus and method for making glass sheet with improved sheet stability
Apparatus and equipment for making glass sheet from a glass ribbon including scoring, bending and separation in vertical state with improved glass ribbon stability provided by edge restrainers located above the score-line that also travel with substantially the same vertical velocity with the elastic ribbon. The edge restrainers on both...

03/01/12 - 20120048906 - Substrate cutting device and method
An automatic cutting device is described for cutting an assembly. The assembly includes a material having a weakened zone therein that defines a useful layer and being attached to a source substrate. The cutting device includes a cutting mechanism and a holding and positioning mechanism operatively associated with the cutting...

02/02/12 - 20120024928 - Cleaving method for a glass film
Provided is a cleaving method for a glass film (G) including: cleaving, during conveyance of the glass film (G) in a predetermined direction, the glass film (G) continuously along a preset cleaving line (8) extending in a predetermined conveying direction (a) by a thermal stress generated through localized heating performed...

01/26/12 - 20120018481 - Commercial packaging of disposable cleaver
A method of cleaving an optical fiber using a disposable abrasive film is disclosed. The method includes preparing an end of an optical fiber by exposing a length of the optical fiber. The exposed optical fiber is brought into contact with a tangential swipe formed of abrasive film to cause...

01/26/12 - 20120018482 - Bladeless optical fiber cleaver
A bladeless optical fiber cleaver includes a first clamp and a second clamp coupled to each other via a generally support tray, where the second clamp is movable with respect to the first clamp along an axis of the optical fiber. The first and second clamps each receive a portion...

01/19/12 - 20120012632 - Cutter and method for cutting brittle material substrate using same
A cutter with which a diagonal crack can be created without fail deeply within a brittle material substrate is provided. The cutter has such a form that two cones or truncated cones are joined through the same bottom so as to share the same rotational axis, and the circumference of...

01/05/12 - 20120000956 - Deterministic cleave of optical fiber
Axial tension is applied to an optical fiber that had been scored at the intended cleave location, wherein the axial tension is applied in a time-varying manner to maintain the stress intensity factor for crack on the fiber within an acceptable level to produce a stable crack growth at a...

12/29/11 - 20110315735 - Unknown
A method of cutting a glass strip, the method including the steps of feeding the strip along a straight path; detecting the travelling speed of the strip; and scoring and breaking the strip transversely on the basis of a travelling speed corrected by automatically multiplying the detected travelling speed by...

11/03/11 - 20110266325 - Breaking apparatus and breaking method for substrate made of brittle material
In a breaking operation, a substrate is moved so that a blade can be situated in line with a scribe line, and the blade is lowered to break the substrate. After the breaking, the blade is raised. Then, the substrate is moved along its surface while taking an image of...

10/20/11 - 20110253760 - Surgical rod scorer and method of use of the same
A method for cutting surgical rod in situ is provided. The method includes positioning an operable end of a surgical rod scorer around surgical rod that has been previously affixed to a spinal segment via at least two pedicle screws. A portion of the surgical rod is scored with the...

09/22/11 - 20110226832 - Mechanical scoring and separation of strengthened glass
A strengthened glass sheet is separated into undamaged sheet segments by mechanically scribing one or more vent lines of controlled depth into the sheet surface, the depths of the scribed lines being insufficient to effect sheet separation, and then applying a uniform bending moment across the vent lines to effect...

08/25/11 - 20110204116 - Bladeless cleavers having an arcuate exterior surface and related methods for cleaving an optical fiber using an abrasive medium
Methods, cleavers, and packagings for cleaving an optical fiber using an abrasive medium are disclosed. In one embodiment, a bladeless cleaver includes a body having an arcuate exterior surface, which may be provided in one embodiment by an exterior surface of a tool or toolkit, such as, but not limited...

08/25/11 - 20110204117 - Bladeless cleavers having a flexible tongue and related methods for cleaving an optical fiber using an abrasive medium
Methods, cleavers, and packagings for cleaving an optical fiber using an abrasive medium are disclosed. In one embodiment, the bladeless cleaver includes a body having a flexible tongue configured to receive an optical fiber. The flexible tongue is further configured to provide an arcuate surface to bend a portion of...

06/09/11 - 20110132954 - Scribing wheel and method for scribing brittle material substrate
A scribing wheel having a long life with little wear at the blade even when used to scribe a substrate that is relatively hard, such as a ceramic substrate, which can create deep vertical cracks if necessary is provided. A number of grooves 13 are created with predetermined intervals at...

04/28/11 - 20110095062 - Breaking apparatus and breaking method
[Means for Achieving Object] The breaking apparatus has: a table 12 on which a brittle material substrate is placed; a roller head 40 for supporting a freely rotatable roller 32 which makes contact with the substrate and has a vibration actuator 38 for vibrating the roller in the direction in...

04/14/11 - 20110084108 - Surgical rod scorer and method of use of the same
A surgical rod scorer is provided. The surgical rod scorer includes a handle having an elongated shaft extending therefrom defining a longitudinal axis therethrough. A knob supported on a proximal end of the handle is movable about the longitudinal axis. A reciprocating member is operably disposed and translatable within the...

01/06/11 - 20110000947 - Perforated bag separation method and apparatus
A method and apparatus for partially separating bags in a longitudinally extended continuous flattened extruded tubular web having a series of seal lines and rupturable separation lines defining a series of separable individual bags. A rupturing member applies force perpendicular to a portion of the surface of the web while...