CN1939829A - Blade folder and method for the adjustment of a blade folder. - Google Patents
Blade folder and method for the adjustment of a blade folder. Download PDFInfo
- Publication number
- CN1939829A CN1939829A CNA2006101415464A CN200610141546A CN1939829A CN 1939829 A CN1939829 A CN 1939829A CN A2006101415464 A CNA2006101415464 A CN A2006101415464A CN 200610141546 A CN200610141546 A CN 200610141546A CN 1939829 A CN1939829 A CN 1939829A
- Authority
- CN
- China
- Prior art keywords
- knife
- cutter
- folding
- fold
- actuating device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H45/00—Folding thin material
- B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
- B65H45/18—Oscillating or reciprocating blade folders
Landscapes
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Sewing Machines And Sewing (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Knives (AREA)
Abstract
The present invention relates to a knife folding device(20, 20')comprising an fixed frame(1, 1')with respect to the equipment, a knife(15)and a drive device(3, 3', 5, 5', 6, 6', 12, 13, 14), wherein the drive device(3, 3', 5, 5', 6, 6', 12, 13, 14)is adapted to generate a knife travel substantially vertically along a guide unit(8, 8', 9, 21)so as to generate a knife folding in a sheet-type body to be printed(2), wherein the overall drive device(3, 3', 5, 5', 6, 6', 12, 13, 14)is disposed so that its position can be adjusted vertically relative to the fixed frame(1, 1')with respect to the equipment.
Description
Technical field
The present invention relates to a kind of knife-fold device, have a relative equipment fixing frame, a cutter and an actuating device, wherein, this actuating device is suitable for substantially vertically producing a cutter stroke along a pilot unit, so that produce knife-fold in a chip stock.The invention still further relates to a kind of method of in a knife-fold device, regulating the folding blade height.
Background technology
The knife-fold device is well known in the prior art.This type of knife-fold device has a folding blade usually, but this folding blade is by actuating device vertical ground motion and that it has been disposed a folding roller is right basically.The mode of action of knife-fold device is such, that is, be arranged between folding blade and the folding roller the chip stock by the such degree of cutter stroke move between the folding roller, make folding roller to paper grasp, folding and continue to transmit.In the case, folding blade between folding roller in the zone sink to the degree of depth and folding blade is most important with respect to the degree of dip on folding roll shaft plane of living in.If it is too small to sink to the degree of depth, folding roller just can not caught the chip stock ideally, and if to sink to the degree of depth excessive, folding blade self will be absorbed between the folding roller and can cause machine to shut down.Therefore importantly will regulate folding blade the best in the zone between folding roller sinks to the degree of depth.
Folding blade in the known technology is to be made of the enough heavy movable part of quality, and these members can technically in the folding operation be conditioned bothersomely, or can be by means of instrument in height and degree of dip adjusted when shutting down.For example referring to Germany Patent document DE10214911, German laid-open document DE10229468, German laid-open document DE4018707, German laid-open document DE4018709, European patent application EP 987210, European patent application EP 1354835 and U.S. Pat 4568319.
Folding blade typically is arranged on the guide pipe of a beat-type activity at this, this guide pipe with rigidity of frame bonded assembly sliding bearing sleeve in move.According to the technical form of implementation of folding blade unit, the integrated mechanism that is used for the manual or mechanical height adjusting unit of folding blade in guide pipe.Its shortcoming is that because the bothersome technology of the height adjusting unit of folding blade, the knife-fold device is limited on power and speed.Be integrated in movable parts because be used for the mechanism of height adjustment, so under the high situation of beat number, this just causes occurring following the system vibration of obvious noise, component wear gets also fast relatively.
Thus, a kind of like this knife-fold device is to be worth expectation, even its feasible also can steadily and wearing and tearing for the folding process of quick operation is worked littlely, and, utilize this knife-fold device, height and the degree of dip that can in the machine of running, regulate folding blade phase double spread article simply.DE4018707A1 discloses a kind of arrangement for adjusting height of folding blade, and the axle that wherein drives the folding blade crank driving mechanism is bearing in the back plate, and this back plate can vertically be regulated in the guide of housing.The associated change in location of the gear of Cylindrical gear actuator is guaranteed by means of the effect of anvil roll, pipe link and pre-tensioned pressure spring.Actuating device is quite complicated owing to the separating of fixed and Height Adjustable parts of actuating device, and still has a plurality of worn partss.In addition, in this actuating device, lack the feasibility of regulating the folding blade degree of dip with respect to the folding article.
Summary of the invention
Therefore, the objective of the invention is to, simplify and improve known knife-fold device.
According to the present invention, a kind of knife-fold device has been proposed, have a relative equipment fixing frame, a cutter and an actuating device, wherein, this actuating device is suitable for substantially vertically producing a cutter stroke along a pilot unit, so that produce knife-fold in a chip stock, wherein, but the whole actuating device frame vertical movement ground fixing with respect to this relative equipment is provided with.
According to the present invention, a kind of method of regulating the folding blade height in a knife-fold device has been proposed also.
Therefore, the whole actuating device frame fixing with respect to this relative equipment is provided with vertically adjustablely.
In a favourable configuration, the actuating device of knife-fold device is arranged on the oscillating deck, and wherein, this oscillating deck has the fixing center of gyration of a relative equipment, and this oscillating deck rotatably is provided with around this center of gyration, and is adaptive with the height that carries out folding blade.The adaptive swing by actuating device self of the height of folding blade is worked, so the last bottom dead point of cutter stroke moves to carry out highly adaptive along pilot unit.Because whole actuating device only is arranged on the oscillating deck, thus all Level Changes just can be automatically unique hunting motion by oscillating deck produce.This swing is easy to realize automation.In addition, cancelled the actuation mechanism of taking of the height adjustment that is useful on, because arrangement for adjusting height itself and actuating device do not participate in the cutter stroke of folding blade.Thus, just reduced quantity for the required parts of cutter stroke.Correspondingly, just can use smaller motor, reduce manufacturing cost and can make the operation of knife-fold device become more economical for actuating device.
In one of knife-fold device of the present invention favourable further configuration, pilot unit can be rotated to support on the frame, so that it is adaptive to carry out the degree of dip of folding blade with respect to the plane of chip stock.In this way, the degree of dip of double spread cutter and highly exerting one's influence advantageously just, and needn't use the additional motion parts, be used for the adaptive mechanism of folding blade degree of dip and also needn't move together.
In another favourable configuration of knife-fold device of the present invention, actuating device comprises a driving disk, and this driving disk has an accentric drive link, and wherein, this drive link makes folding blade move on vertical substantially direction along pilot unit.Advantageously, the rotation axis of pilot unit is located substantially on the axis of this driving disk.But,, fixes the rotation axis of pilot unit, so the driving disk axis is moved by the swing of actuating device driving by oscillating deck, so rotation axis and driving disk axis are each other separately because being relative equipment.
Method of the present invention comprises the following steps:
A) provide a knife-fold device with a cutter and an actuating device, wherein this actuating device is suitable for substantially vertically producing the cutter stroke along a pilot unit, so that produce knife-fold in a chip stock;
B) make cutter move to a position, so that this cutter does not produce the folding of chip stock probably during a cutter stroke;
C) start a cutter stroke;
D) check the folding whether this cutter stroke produces the chip stock;
E) the bottom dead point auto-increment ground of cutter is descended;
F) automatic repeating step c) to e), the folding that produces the chip stock up to the cutter stroke.The folding of chip stock realizes by the chip stock is inserted between the counterrotating folding roller.
Advantageously, check that step d) comprises automatic inspection, especially utilize a sensor inspection.Though also can check the in fact whether folding of chip stock by operating personal, advantageously by a sensor for example optical sensor carry out.
In another favourable configuration of the inventive method, this method comprises the adaptive step of wing drop degree of cutter, makes this cutter maintenance level basically in each cutter stroke.Especially advantageously, setting up procedure also can carry out automatically.In this case, entire method all is operation automatically.For example, control setup can be based on the known thickness or the material calculation procedure b of chip stock) in the folding blade position that should be placed at least, do not make the folding of chip stock probably to guarantee the cutter stroke.Certainly also can imagine, allow the method inverted running, also promptly select a chip stock, make the rising of bottom dead point auto-increment ground subsequently, until just in time no longer folding by the position of reliable folding.Because exist folding blade to sink into danger between the folding roller, this operating mode is not an advantageous particularly.In addition, in this type of operating mode, all can make a new paper folding, and in the favourable operating mode of the inventive method, this method can be carried out with a unique paper at every turn.
Description of drawings
Followingly the preferred of knife-fold device of the present invention described in further detail with reference to accompanying drawing
Embodiment.
Accompanying drawing schematically shows:
The front isometric view of Fig. 1 knife-fold device of the present invention;
The stereo rearview of Fig. 2 knife-fold device of the present invention;
The front isometric view of another embodiment of Fig. 3;
Fig. 4 is from the front isometric view of Fig. 3 embodiment of different view;
Fig. 5 has the front isometric view of Fig. 3 embodiment of fixed equipment frame.
The specific embodiment
Embodiment at the knife-fold device of the present invention shown in Fig. 1 to 5 is only schematically shown.Other unessential for the present invention, be used to operate required element such as bearing set, actuating device, control setup, housing etc. and only be schematically shown or do not illustrate at all, because they can oneself draw for those skilled in the art.Especially all the other folding rollers that belong to the housing parts of knife-fold device and be positioned at the folding blade below have been omitted.
Fig. 1 and 2 shows one first embodiment.On the frame that a form is back plate 1 the unshowned housing captive joint of knife-fold device 20---this back plate with---, relative equipment is fixing, be provided with an oscillating deck 4 like this, make that this oscillating deck 4 can be around center of gyration 10 swings with respect to back plate 1.An actuating device 18 is used for making oscillating deck 4 around center of gyration 10 swings according to the instruction of control setup 17.Control setup 17 is also controlled the motor 3 of folding blade actuating device, and advantageously be connected with the folding machine control setup of a upper class in addition, control setup 17 for example obtains the information of thickness, material character and the size of relevant sheet stock 2 from this folding machine control setup.
Fig. 3 to 5 shows another embodiment.But knife-fold device 20 ' the actuating device vertical movement be arranged on the fixing frame 1 of relative equipment ' in.Housing 22 can be by means of a leading screw 23 along some guidepost 24 vertical adjusting.On housing, fixing one drive driving disk 5 ' motor 3 '.Driving disk 5 ' on be provided with prejudicially a drive link 6 ', in the cutter supporting 7 of this drive link 6 ' be fixed on again carrying folding blade 15.Cutter supporting 7 and guide pipe 8 ' captive joint.Guide pipe 8 ' motion in the strut member 21 that is provided with plain bearing vertically.Folding blade 15 ' also can be additionally around rotation axis 25 frame 1 fixing ' swing with respect to relative equipment.
Adjusting, the following execution of especially full automatic adjusting of best folding blade height: the position of preliminary evaluation folding blade 15 at first, especially basis is calculated from the data in advance of specification, material character and the folding type of the relevant chip stock 2 of control setup 17 acquisitions, make folding blade 15 above the plane of chip stock 2, be positioned at the top dead point of stroke motion on the one hand, so that chip stock 2 can enter between folding blade 15 and the folding roller without a doubt.On the other hand, folding blade does not strike chip stock 2 between the folding roller in the cutter bottom end of stroke, and folding roller is just grabbed incessantly chip stock 2, also just not folding like this.In this process, folding blade advantageously is parallel to the plane inclination of chip stock 2.If chip stock 2 is ready, just start the cutter stroke, check that subsequently whether the chip stock is by folding.According to the present invention, should negate, otherwise just must raise the position of cutter bottom of stroke at least and re-execute this method.But, as a rule, when starting the cutter stroke for the first time, not folding of chip stock 2, correspondingly, in inspection subsequently, an increment (Inkrement) automatically falls in bottom dead point.At this moment, the cutter stroke is activated again, checks that chip stock 2 whether by folding and automatic lowering once more, makes 2 foldings of chip stock until the cutter stroke.Afterwards, this method finishes, and 15 this moments of cutter are in best height adjustment state with+/-1/2 increment.
Check the folding whether the cutter strokes have produced chip stock 2 by a sensor 16, this sensor 16 is arranged in the zone of folding roller and detects chip stock 2 and whether pass through folding roller.If control setup 17 learns that on sensor 16 situation is not such, then control setup 17 makes increment of oscillating deck 4 swings with regard to accessory drive 18, makes motor 3 carry out another cutter stroke subsequently.Alternatively, control setup is correspondingly controlled the actuating device of leading screw 23.Also can after realizing height adjustment, when the 2 quilt foldings for the first time of chip stock, make the cutter bottom end of stroke fall a definite amount again, so that improve the possibility that all chip stocks 2 are in fact also inserted between the folding rollers by folding blade 15.
The reference number table
1,1 ' relatively fixing frame of equipment
2 chip stocks
3,3 ' motor
4 oscillating decks
5,5 ' driving-disc
6,6 ' drive link
The supporting of 7 cuttves
8,8 ' guide pipe
9 receive angle-shaped piece
10 center of gyrations
11 rotation axiss
12 gears
13 cog belt
14 eccentric parts
15 cuttves
16 sensors
17 control setups
18 actuating devices
19 disk axis
20,20 ' knife-fold device
21 strut members
22 housings
23 leading screws
24 guideposts
25 rotation axiss
Claims (10)
1. a knife-fold device (20,20 ') has the fixing frame (1,1 ') of a relative equipment, a cutter (15) and an actuating device (3,3 ', 5,5 ', 6,6 ', 12,13,14), wherein, this actuating device (3,3 ', 5,5 ', 6,6 ', 12,13,14) be suitable for substantially vertically along a pilot unit (8,8 ', 9,21) produce a cutter stroke,, it is characterized in that whole actuating device (3 so that in a chip stock (2), produce knife-fold, 3 ', 5,5 ', 6,6 ', 12,13,14) with respect to the fixing frame (1,1 ') of this relative equipment but the setting of vertical movement ground.
2. knife-fold device as claimed in claim 1 is characterized in that, this pilot unit (8,8 ', 9,21) can be rotated to support on the frame (1,1 '), adaptive with the degree of dip of carrying out folding blade (15) with respect to the plane of chip stock (2).
3. knife-fold device as claimed in claim 1 is characterized in that, this actuating device (3,3 ', 5,5 ', 6,6 ', 12,13,14) comprise a driving disk (5,5 '), this driving disk (5,5 ') has an accentric drive link (6,6 '), wherein, this drive link (6,6 ') makes folding blade (15) along pilot unit (8,8 ', 9,21) on vertical substantially direction, move.
4. knife-fold device as claimed in claim 1, it is characterized in that this actuating device (3,5,6,12,13,14) be arranged on the oscillating deck (4), wherein, this oscillating deck (4) has the fixing center of gyration (10) of a relative equipment, and this oscillating deck (4) rotatably is provided with around this center of gyration (10), and is adaptive with the height that carries out folding blade (15).
5. knife-fold device as claimed in claim 2 is characterized in that, the rotation axis (11) of this pilot unit (8,9) is located substantially on the driving disk axis (19) of this driving disk (5).
6. a method of regulating the folding blade height in a knife-fold device (20,20 ') is characterized in that, comprises the following steps:
A) provide one have a cutter (15) and actuating device (3,3 ', 5,5 ', 6,6 ', 12,13,14) knife-fold device (20), wherein this actuating device (3,3 ', 5,5 ', 6,6 ', 12,13,14) be suitable for substantially vertically along a pilot unit (8,8 ', 9,21) produce the cutter stroke, so that in a chip stock (2), produce knife-fold;
B) make cutter (15) move to a position, so that this cutter (15) does not produce the folding of chip stock (2) probably during a cutter stroke;
C) start a cutter stroke;
D) check whether this cutter stroke produces the folding of chip stock (2);
E) the bottom dead point auto-increment ground of cutter (15) is descended;
F) automatic repeating step c) to e), the folding that produces chip stock (2) up to the cutter stroke.
7. method as claimed in claim 6 is characterized in that, checks that step comprises automatic inspection, especially utilizes a sensor (16) inspection.
8. method as claimed in claim 6 is characterized in that, this method comprises that the wing drop degree of cutter (15) is adaptive, makes that this cutter (15) is a level in each cutter stroke basically.
9. method as claimed in claim 6 is characterized in that setting up procedure carries out automatically.
10. method as claimed in claim 6 is characterized in that, this knife-fold device (20,20 ') is a knife-fold device as claimed in claim 1 (20,20 ').
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005046688A DE102005046688A1 (en) | 2005-09-29 | 2005-09-29 | Sword folder and method for setting a knife folder |
| DE102005046688.5 | 2005-09-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1939829A true CN1939829A (en) | 2007-04-04 |
| CN1939829B CN1939829B (en) | 2012-06-20 |
Family
ID=37497006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610141546.4A Active CN1939829B (en) | 2005-09-29 | 2006-09-29 | Blade folder and method for the adjustment of a blade folder. |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1770043B1 (en) |
| JP (1) | JP4969975B2 (en) |
| CN (1) | CN1939829B (en) |
| AT (1) | ATE493360T1 (en) |
| DE (2) | DE102005046688A1 (en) |
| PT (1) | PT1770043E (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102639420A (en) * | 2009-12-10 | 2012-08-15 | 好利用国际株式会社 | Knife folding device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5511446B2 (en) * | 2010-03-11 | 2014-06-04 | キヤノン株式会社 | Sheet processing apparatus and image forming apparatus |
| CN104340747B (en) * | 2013-08-08 | 2019-04-30 | 上海乔力雅洗衣器材有限公司 | Folding machine equipped with straight knife type fold mechanism |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6019662A (en) * | 1983-07-12 | 1985-01-31 | Shoei Kikai Seisakusho:Kk | Belt driving unit-type sheet folding knife device folding machine |
| US4568319A (en) * | 1985-02-27 | 1986-02-04 | Shoei Machine Manufacturing Co., Ltd. | Paper folding knife device of belt drive unit type for paper folder |
| DD286561A5 (en) * | 1989-06-30 | 1991-01-31 | Veb Polygrph Buchbindereimaschinenwerke,De | ADJUSTING DEVICE FOR FOLDING KNIVES AND FOLDING ROLLERS |
| DD286560B5 (en) * | 1989-06-30 | 1994-06-16 | Brehmer Buchbindereimaschinen | Drive device for folding blade |
| DE4109897A1 (en) * | 1991-03-26 | 1992-10-01 | Stahl Gmbh & Co Maschf | Folding machine folding blade drive - has two sync. driven cam discs with eccentric cam pins, each mounting connecting rod with swivel motion |
| EP0987210A3 (en) * | 1998-09-17 | 2000-09-27 | MBO MASCHINENBAU OPPENWEILER BINDER GMBH & CO. | Drive for a folding blade |
| DE20006369U1 (en) * | 2000-04-06 | 2000-08-10 | Binder & Co Masch Oppenweiler | Folding sword drive |
| JP3433800B2 (en) * | 2000-10-04 | 2003-08-04 | 株式会社東京機械製作所 | Rotary chopper folding device |
| EP1354835B1 (en) * | 2002-03-15 | 2005-06-08 | MASCHINENBAU OPPENWEILER BINDER GmbH & Co. KG | Driving device for a folding blade |
| DE10214911C1 (en) * | 2002-04-04 | 2003-08-14 | Oppenweiler Binder Gmbh Maschb | Fold bar drive has cylinder-piston pneumatic drive, with lines connected to cylinder below and above piston |
| DE10229468A1 (en) * | 2002-07-01 | 2004-01-15 | Heidelberger Druckmaschinen Ag | Device for setting a folding sword |
-
2005
- 2005-09-29 DE DE102005046688A patent/DE102005046688A1/en not_active Withdrawn
-
2006
- 2006-09-28 PT PT06121402T patent/PT1770043E/en unknown
- 2006-09-28 DE DE502006008594T patent/DE502006008594D1/en active Active
- 2006-09-28 AT AT06121402T patent/ATE493360T1/en active
- 2006-09-28 EP EP06121402A patent/EP1770043B1/en active Active
- 2006-09-28 JP JP2006265198A patent/JP4969975B2/en active Active
- 2006-09-29 CN CN200610141546.4A patent/CN1939829B/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102639420A (en) * | 2009-12-10 | 2012-08-15 | 好利用国际株式会社 | Knife folding device |
| CN102639420B (en) * | 2009-12-10 | 2015-05-13 | 好利用国际株式会社 | Knife folding device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102005046688A1 (en) | 2007-04-05 |
| CN1939829B (en) | 2012-06-20 |
| PT1770043E (en) | 2011-02-08 |
| DE502006008594D1 (en) | 2011-02-10 |
| ATE493360T1 (en) | 2011-01-15 |
| JP4969975B2 (en) | 2012-07-04 |
| EP1770043A1 (en) | 2007-04-04 |
| JP2007091473A (en) | 2007-04-12 |
| EP1770043B1 (en) | 2010-12-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1946545A (en) | Press device | |
| CN1248861C (en) | Device for preventing double-paper feed in printer | |
| CN100335322C (en) | Ratio regulation mechanism for an action lever | |
| CN1067630C (en) | Apparatus for driving reciprocating punching | |
| CN2767094Y (en) | Sheet feeding mechanism of frame sawing machine | |
| CN1518632A (en) | Friction device for roll-up curtains and the like | |
| CN1939829A (en) | Blade folder and method for the adjustment of a blade folder. | |
| CN85104700A (en) | The paper conveying roller of paper wheel printing machine | |
| CN1948585A (en) | Differential material feeding device of sewing machine | |
| CN1760422A (en) | Fabric presser of sewing machine | |
| CN105880409A (en) | Hydraulic drawing and feeding manipulator | |
| CN1891883A (en) | Process for working a pile in a pre-needling apparatus and apparatus for doing so | |
| CN1191185C (en) | Paper-feeding apparatus and imaging apparatus fitted with paper-feeding device | |
| CN1771402A (en) | Balancer mechanism for rotating shaft | |
| CN2801731Y (en) | Separating device of sheet material | |
| CN102672004A (en) | Overlarge sieve plate leveling device and method | |
| CN1572487A (en) | Guide device for sheet | |
| CN1804181A (en) | Traction device of sewing machine | |
| CN213377718U (en) | Vibrating screen with adjustable screening gap | |
| CN1542192A (en) | Cloth feeding mechanism of sewing machine | |
| CN1676715A (en) | Device for driving spacing presser foot up and down and sewing machine | |
| CN2488128Y (en) | Experiment instrument assembled according to mechanical scheme | |
| CN1676717A (en) | Presser foot lifting device for sewing machine | |
| CN101037833A (en) | Feeding device for pattern sewing machine | |
| CN1800479A (en) | Needle drive of sewing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| REG | Reference to a national code |
Ref country code: HK Ref legal event code: DE Ref document number: 1099646 Country of ref document: HK |
|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |